diff options
| author | Peter Maydell <peter.maydell@linaro.org> | 2021-01-19 15:47:23 +0000 |
|---|---|---|
| committer | Peter Maydell <peter.maydell@linaro.org> | 2021-01-19 15:47:23 +0000 |
| commit | 48202c712412c803ddb56365c7bca322aa4e7506 (patch) | |
| tree | d619d954218fd9e75a193d1372e5c34dffe5ae72 | |
| parent | f1fcb6851aba6dd9838886dc179717a11e344a1c (diff) | |
| parent | b93f4fbdc48283a39089469c44a5529d79dc40a8 (diff) | |
| download | qemu-48202c712412c803ddb56365c7bca322aa4e7506.zip qemu-48202c712412c803ddb56365c7bca322aa4e7506.tar.gz qemu-48202c712412c803ddb56365c7bca322aa4e7506.tar.bz2 | |
Merge remote-tracking branch 'remotes/pmaydell/tags/pull-target-arm-20210119-1' into staging
target-arm queue:
* Implement IMPDEF pauth algorithm
* Support ARMv8.4-SEL2
* Fix bug where we were truncating predicate vector lengths in SVE insns
* npcm7xx_adc-test: Fix memleak in adc_qom_set
* target/arm/m_helper: Silence GCC 10 maybe-uninitialized error
* docs: Build and install all the docs in a single manual
# gpg: Signature made Tue 19 Jan 2021 15:46:34 GMT
# gpg: using RSA key E1A5C593CD419DE28E8315CF3C2525ED14360CDE
# gpg: issuer "peter.maydell@linaro.org"
# gpg: Good signature from "Peter Maydell <peter.maydell@linaro.org>" [ultimate]
# gpg: aka "Peter Maydell <pmaydell@gmail.com>" [ultimate]
# gpg: aka "Peter Maydell <pmaydell@chiark.greenend.org.uk>" [ultimate]
# Primary key fingerprint: E1A5 C593 CD41 9DE2 8E83 15CF 3C25 25ED 1436 0CDE
* remotes/pmaydell/tags/pull-target-arm-20210119-1: (29 commits)
docs: Build and install all the docs in a single manual
target/arm/m_helper: Silence GCC 10 maybe-uninitialized error
npcm7xx_adc-test: Fix memleak in adc_qom_set
target/arm: Update REV, PUNPK for pred_desc
target/arm: Update ZIP, UZP, TRN for pred_desc
target/arm: Update PFIRST, PNEXT for pred_desc
target/arm: Introduce PREDDESC field definitions
target/arm: refactor vae1_tlbmask()
target/arm: enable Secure EL2 in max CPU
target/arm: Implement SCR_EL2.EEL2
target/arm: revector to run-time pick target EL
target/arm: set HPFAR_EL2.NS on secure stage 2 faults
target/arm: secure stage 2 translation regime
target/arm: generalize 2-stage page-walk condition
target/arm: translate NS bit in page-walks
target/arm: do S1_ptw_translate() before address space lookup
target/arm: handle VMID change in secure state
target/arm: add ARMv8.4-SEL2 system registers
target/arm: add MMU stage 1 for Secure EL2
target/arm: add 64-bit S-EL2 to EL exception table
...
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
30 files changed, 771 insertions, 439 deletions
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml index fd0162a..203b167 100644 --- a/.gitlab-ci.yml +++ b/.gitlab-ci.yml @@ -622,8 +622,8 @@ pages: -t "Welcome to the QEMU sourcecode" - mv HTML public/src # Project documentation - - mv build/docs/index.html public/ - - for i in devel interop specs system tools user ; do mv build/docs/$i public/ ; done + - make -C build install DESTDIR=$(pwd)/temp-install + - mv temp-install/usr/local/share/doc/qemu/* public/ artifacts: paths: - public diff --git a/docs/conf.py b/docs/conf.py index d40d8ff..2ee6111 100644 --- a/docs/conf.py +++ b/docs/conf.py @@ -224,7 +224,51 @@ latex_documents = [ # -- Options for manual page output --------------------------------------- # Individual manual/conf.py can override this to create man pages -man_pages = [] +man_pages = [ + ('interop/qemu-ga', 'qemu-ga', + 'QEMU Guest Agent', + ['Michael Roth <mdroth@linux.vnet.ibm.com>'], 8), + ('interop/qemu-ga-ref', 'qemu-ga-ref', + 'QEMU Guest Agent Protocol Reference', + [], 7), + ('interop/qemu-qmp-ref', 'qemu-qmp-ref', + 'QEMU QMP Reference Manual', + [], 7), + ('interop/qemu-storage-daemon-qmp-ref', 'qemu-storage-daemon-qmp-ref', + 'QEMU Storage Daemon QMP Reference Manual', + [], 7), + ('system/qemu-manpage', 'qemu', + 'QEMU User Documentation', + ['Fabrice Bellard'], 1), + ('system/qemu-block-drivers', 'qemu-block-drivers', + 'QEMU block drivers reference', + ['Fabrice Bellard and the QEMU Project developers'], 7), + ('system/qemu-cpu-models', 'qemu-cpu-models', + 'QEMU CPU Models', + ['The QEMU Project developers'], 7), + ('tools/qemu-img', 'qemu-img', + 'QEMU disk image utility', + ['Fabrice Bellard'], 1), + ('tools/qemu-nbd', 'qemu-nbd', + 'QEMU Disk Network Block Device Server', + ['Anthony Liguori <anthony@codemonkey.ws>'], 8), + ('tools/qemu-pr-helper', 'qemu-pr-helper', + 'QEMU persistent reservation helper', + [], 8), + ('tools/qemu-storage-daemon', 'qemu-storage-daemon', + 'QEMU storage daemon', + [], 1), + ('tools/qemu-trace-stap', 'qemu-trace-stap', + 'QEMU SystemTap trace tool', + [], 1), + ('tools/virtfs-proxy-helper', 'virtfs-proxy-helper', + 'QEMU 9p virtfs proxy filesystem helper', + ['M. Mohan Kumar'], 1), + ('tools/virtiofsd', 'virtiofsd', + 'QEMU virtio-fs shared file system daemon', + ['Stefan Hajnoczi <stefanha@redhat.com>', + 'Masayoshi Mizuma <m.mizuma@jp.fujitsu.com>'], 1), +] # -- Options for Texinfo output ------------------------------------------- diff --git a/docs/devel/conf.py b/docs/devel/conf.py deleted file mode 100644 index 7441f87..0000000 --- a/docs/devel/conf.py +++ /dev/null @@ -1,15 +0,0 @@ -# -*- coding: utf-8 -*- -# -# QEMU documentation build configuration file for the 'devel' manual. -# -# This includes the top level conf file and then makes any necessary tweaks. -import sys -import os - -qemu_docdir = os.path.abspath("..") -parent_config = os.path.join(qemu_docdir, "conf.py") -exec(compile(open(parent_config, "rb").read(), parent_config, 'exec')) - -# This slightly misuses the 'description', but is the best way to get -# the manual title to appear in the sidebar. -html_theme_options['description'] = u'Developer''s Guide' diff --git a/docs/index.html.in b/docs/index.html.in deleted file mode 100644 index 33db439..0000000 --- a/docs/index.html.in +++ /dev/null @@ -1,17 +0,0 @@ -<!DOCTYPE html> -<html lang="en"> - <head> - <meta charset="UTF-8"> - <title>QEMU @VERSION@ Documentation</title> - </head> - <body> - <h1>QEMU @VERSION@ Documentation</h1> - <ul> - <li><a href="system/index.html">System Emulation User's Guide</a></li> - <li><a href="user/index.html">User Mode Emulation User's Guide</a></li> - <li><a href="tools/index.html">Tools Guide</a></li> - <li><a href="interop/index.html">System Emulation Management and Interoperability Guide</a></li> - <li><a href="specs/index.html">System Emulation Guest Hardware Specifications</a></li> - </ul> - </body> -</html> diff --git a/docs/interop/conf.py b/docs/interop/conf.py deleted file mode 100644 index f4370aa..0000000 --- a/docs/interop/conf.py +++ /dev/null @@ -1,28 +0,0 @@ -# -*- coding: utf-8 -*- -# -# QEMU documentation build configuration file for the 'interop' manual. -# -# This includes the top level conf file and then makes any necessary tweaks. -import sys -import os - -qemu_docdir = os.path.abspath("..") -parent_config = os.path.join(qemu_docdir, "conf.py") -exec(compile(open(parent_config, "rb").read(), parent_config, 'exec')) - -# This slightly misuses the 'description', but is the best way to get -# the manual title to appear in the sidebar. -html_theme_options['description'] = u'System Emulation Management and Interoperability Guide' - -# One entry per manual page. List of tuples -# (source start file, name, description, authors, manual section). -man_pages = [ - ('qemu-ga', 'qemu-ga', u'QEMU Guest Agent', - ['Michael Roth <mdroth@linux.vnet.ibm.com>'], 8), - ('qemu-ga-ref', 'qemu-ga-ref', 'QEMU Guest Agent Protocol Reference', - [], 7), - ('qemu-qmp-ref', 'qemu-qmp-ref', 'QEMU QMP Reference Manual', - [], 7), - ('qemu-storage-daemon-qmp-ref', 'qemu-storage-daemon-qmp-ref', - 'QEMU Storage Daemon QMP Reference Manual', [], 7), -] diff --git a/docs/meson.build b/docs/meson.build index fae9849..bb14eae 100644 --- a/docs/meson.build +++ b/docs/meson.build @@ -46,19 +46,11 @@ if build_docs meson.source_root() / 'docs/sphinx/qmp_lexer.py', qapi_gen_depends ] - configure_file(output: 'index.html', - input: files('index.html.in'), - configuration: {'VERSION': meson.project_version()}, - install_dir: qemu_docdir) - manuals = [ 'devel', 'interop', 'tools', 'specs', 'system', 'user' ] man_pages = { - 'interop' : { 'qemu-ga.8': (have_tools ? 'man8' : ''), 'qemu-ga-ref.7': 'man7', 'qemu-qmp-ref.7': 'man7', 'qemu-storage-daemon-qmp-ref.7': (have_tools ? 'man7' : ''), - }, - 'tools': { 'qemu-img.1': (have_tools ? 'man1' : ''), 'qemu-nbd.8': (have_tools ? 'man8' : ''), 'qemu-pr-helper.8': (have_tools ? 'man8' : ''), @@ -66,53 +58,47 @@ if build_docs 'qemu-trace-stap.1': (config_host.has_key('CONFIG_TRACE_SYSTEMTAP') ? 'man1' : ''), 'virtfs-proxy-helper.1': (have_virtfs_proxy_helper ? 'man1' : ''), 'virtiofsd.1': (have_virtiofsd ? 'man1' : ''), - }, - 'system': { 'qemu.1': 'man1', 'qemu-block-drivers.7': 'man7', 'qemu-cpu-models.7': 'man7' - }, } sphinxdocs = [] sphinxmans = [] - foreach manual : manuals - private_dir = meson.current_build_dir() / (manual + '.p') - output_dir = meson.current_build_dir() / manual - input_dir = meson.current_source_dir() / manual - this_manual = custom_target(manual + ' manual', + private_dir = meson.current_build_dir() / 'manual.p' + output_dir = meson.current_build_dir() / 'manual' + input_dir = meson.current_source_dir() + + this_manual = custom_target('QEMU manual', build_by_default: build_docs, - output: [manual + '.stamp'], - input: [files('conf.py'), files(manual / 'conf.py')], - depfile: manual + '.d', + output: 'docs.stamp', + input: files('conf.py'), + depfile: 'docs.d', depend_files: sphinx_extn_depends, command: [SPHINX_ARGS, '-Ddepfile=@DEPFILE@', '-Ddepfile_stamp=@OUTPUT0@', '-b', 'html', '-d', private_dir, input_dir, output_dir]) - sphinxdocs += this_manual - if build_docs and manual != 'devel' - install_subdir(output_dir, install_dir: qemu_docdir) - endif + sphinxdocs += this_manual + install_subdir(output_dir, install_dir: qemu_docdir, strip_directory: true) - these_man_pages = [] - install_dirs = [] - foreach page, section : man_pages.get(manual, {}) - these_man_pages += page - install_dirs += section == '' ? false : get_option('mandir') / section - endforeach - if these_man_pages.length() > 0 - sphinxmans += custom_target(manual + ' man pages', - build_by_default: build_docs, - output: these_man_pages, - input: this_manual, - install: build_docs, - install_dir: install_dirs, - command: [SPHINX_ARGS, '-b', 'man', '-d', private_dir, - input_dir, meson.current_build_dir()]) - endif + these_man_pages = [] + install_dirs = [] + foreach page, section : man_pages + these_man_pages += page + install_dirs += section == '' ? false : get_option('mandir') / section endforeach + + sphinxmans += custom_target('QEMU man pages', + build_by_default: build_docs, + output: these_man_pages, + input: this_manual, + install: build_docs, + install_dir: install_dirs, + command: [SPHINX_ARGS, '-b', 'man', '-d', private_dir, + input_dir, meson.current_build_dir()]) + alias_target('sphinxdocs', sphinxdocs) alias_target('html', sphinxdocs) alias_target('man', sphinxmans) diff --git a/docs/specs/conf.py b/docs/specs/conf.py deleted file mode 100644 index 4d56f3a..0000000 --- a/docs/specs/conf.py +++ /dev/null @@ -1,16 +0,0 @@ -# -*- coding: utf-8 -*- -# -# QEMU documentation build configuration file for the 'specs' manual. -# -# This includes the top level conf file and then makes any necessary tweaks. -import sys -import os - -qemu_docdir = os.path.abspath("..") -parent_config = os.path.join(qemu_docdir, "conf.py") -exec(compile(open(parent_config, "rb").read(), parent_config, 'exec')) - -# This slightly misuses the 'description', but is the best way to get -# the manual title to appear in the sidebar. -html_theme_options['description'] = \ - u'System Emulation Guest Hardware Specifications' diff --git a/docs/system/arm/cpu-features.rst b/docs/system/arm/cpu-features.rst index 35196a6..c455442 100644 --- a/docs/system/arm/cpu-features.rst +++ b/docs/system/arm/cpu-features.rst @@ -211,6 +211,27 @@ the list of KVM VCPU features and their descriptions. influence the guest scheduler behavior and/or be exposed to the guest userspace. +TCG VCPU Features +================= + +TCG VCPU features are CPU features that are specific to TCG. +Below is the list of TCG VCPU features and their descriptions. + + pauth Enable or disable `FEAT_Pauth`, pointer + authentication. By default, the feature is + enabled with `-cpu max`. + + pauth-impdef When `FEAT_Pauth` is enabled, either the + *impdef* (Implementation Defined) algorithm + is enabled or the *architected* QARMA algorithm + is enabled. By default the impdef algorithm + is disabled, and QARMA is enabled. + + The architected QARMA algorithm has good + cryptographic properties, but can be quite slow + to emulate. The impdef algorithm used by QEMU + is non-cryptographic but significantly faster. + SVE CPU Properties ================== diff --git a/docs/system/conf.py b/docs/system/conf.py deleted file mode 100644 index 6251849..0000000 --- a/docs/system/conf.py +++ /dev/null @@ -1,28 +0,0 @@ -# -*- coding: utf-8 -*- -# -# QEMU documentation build configuration file for the 'system' manual. -# -# This includes the top level conf file and then makes any necessary tweaks. -import sys -import os - -qemu_docdir = os.path.abspath("..") -parent_config = os.path.join(qemu_docdir, "conf.py") -exec(compile(open(parent_config, "rb").read(), parent_config, 'exec')) - -# This slightly misuses the 'description', but is the best way to get -# the manual title to appear in the sidebar. -html_theme_options['description'] = u'System Emulation User''s Guide' - -# One entry per manual page. List of tuples -# (source start file, name, description, authors, manual section). -man_pages = [ - ('qemu-manpage', 'qemu', u'QEMU User Documentation', - ['Fabrice Bellard'], 1), - ('qemu-block-drivers', 'qemu-block-drivers', - u'QEMU block drivers reference', - ['Fabrice Bellard and the QEMU Project developers'], 7), - ('qemu-cpu-models', 'qemu-cpu-models', - u'QEMU CPU Models', - ['The QEMU Project developers'], 7) -] diff --git a/docs/tools/conf.py b/docs/tools/conf.py deleted file mode 100644 index 7072d99..0000000 --- a/docs/tools/conf.py +++ /dev/null @@ -1,37 +0,0 @@ -# -*- coding: utf-8 -*- -# -# QEMU documentation build configuration file for the 'tools' manual. -# -# This includes the top level conf file and then makes any necessary tweaks. -import sys -import os - -qemu_docdir = os.path.abspath("..") -parent_config = os.path.join(qemu_docdir, "conf.py") -exec(compile(open(parent_config, "rb").read(), parent_config, 'exec')) - -# This slightly misuses the 'description', but is the best way to get -# the manual title to appear in the sidebar. -html_theme_options['description'] = \ - u'Tools Guide' - -# One entry per manual page. List of tuples -# (source start file, name, description, authors, manual section). -man_pages = [ - ('qemu-img', 'qemu-img', u'QEMU disk image utility', - ['Fabrice Bellard'], 1), - ('qemu-storage-daemon', 'qemu-storage-daemon', u'QEMU storage daemon', - [], 1), - ('qemu-nbd', 'qemu-nbd', u'QEMU Disk Network Block Device Server', - ['Anthony Liguori <anthony@codemonkey.ws>'], 8), - ('qemu-pr-helper', 'qemu-pr-helper', 'QEMU persistent reservation helper', - [], 8), - ('qemu-trace-stap', 'qemu-trace-stap', u'QEMU SystemTap trace tool', - [], 1), - ('virtfs-proxy-helper', 'virtfs-proxy-helper', - u'QEMU 9p virtfs proxy filesystem helper', - ['M. Mohan Kumar'], 1), - ('virtiofsd', 'virtiofsd', u'QEMU virtio-fs shared file system daemon', - ['Stefan Hajnoczi <stefanha@redhat.com>', - 'Masayoshi Mizuma <m.mizuma@jp.fujitsu.com>'], 1), -] diff --git a/docs/user/conf.py b/docs/user/conf.py deleted file mode 100644 index 4b09aed..0000000 --- a/docs/user/conf.py +++ /dev/null @@ -1,15 +0,0 @@ -# -*- coding: utf-8 -*- -# -# QEMU documentation build configuration file for the 'user' manual. -# -# This includes the top level conf file and then makes any necessary tweaks. -import sys -import os - -qemu_docdir = os.path.abspath("..") -parent_config = os.path.join(qemu_docdir, "conf.py") -exec(compile(open(parent_config, "rb").read(), parent_config, 'exec')) - -# This slightly misuses the 'description', but is the best way to get -# the manual title to appear in the sidebar. -html_theme_options['description'] = u'User Mode Emulation User''s Guide' diff --git a/include/qemu/xxhash.h b/include/qemu/xxhash.h index 076f1f6..c2dccca 100644 --- a/include/qemu/xxhash.h +++ b/include/qemu/xxhash.h @@ -119,4 +119,102 @@ static inline uint32_t qemu_xxhash6(uint64_t ab, uint64_t cd, uint32_t e, return qemu_xxhash7(ab, cd, e, f, 0); } +/* + * Component parts of the XXH64 algorithm from + * https://github.com/Cyan4973/xxHash/blob/v0.8.0/xxhash.h + * + * The complete algorithm looks like + * + * i = 0; + * if (len >= 32) { + * v1 = seed + XXH_PRIME64_1 + XXH_PRIME64_2; + * v2 = seed + XXH_PRIME64_2; + * v3 = seed + 0; + * v4 = seed - XXH_PRIME64_1; + * do { + * v1 = XXH64_round(v1, get64bits(input + i)); + * v2 = XXH64_round(v2, get64bits(input + i + 8)); + * v3 = XXH64_round(v3, get64bits(input + i + 16)); + * v4 = XXH64_round(v4, get64bits(input + i + 24)); + * } while ((i += 32) <= len); + * h64 = XXH64_mergerounds(v1, v2, v3, v4); + * } else { + * h64 = seed + XXH_PRIME64_5; + * } + * h64 += len; + * + * for (; i + 8 <= len; i += 8) { + * h64 ^= XXH64_round(0, get64bits(input + i)); + * h64 = rol64(h64, 27) * XXH_PRIME64_1 + XXH_PRIME64_4; + * } + * for (; i + 4 <= len; i += 4) { + * h64 ^= get32bits(input + i) * PRIME64_1; + * h64 = rol64(h64, 23) * XXH_PRIME64_2 + XXH_PRIME64_3; + * } + * for (; i < len; i += 1) { + * h64 ^= get8bits(input + i) * XXH_PRIME64_5; + * h64 = rol64(h64, 11) * XXH_PRIME64_1; + * } + * + * return XXH64_avalanche(h64) + * + * Exposing the pieces instead allows for simplified usage when + * the length is a known constant and the inputs are in registers. + */ +#define XXH_PRIME64_1 0x9E3779B185EBCA87ULL +#define XXH_PRIME64_2 0xC2B2AE3D27D4EB4FULL +#define XXH_PRIME64_3 0x165667B19E3779F9ULL +#define XXH_PRIME64_4 0x85EBCA77C2B2AE63ULL +#define XXH_PRIME64_5 0x27D4EB2F165667C5ULL + +static inline uint64_t XXH64_round(uint64_t acc, uint64_t input) +{ + return rol64(acc + input * XXH_PRIME64_2, 31) * XXH_PRIME64_1; +} + +static inline uint64_t XXH64_mergeround(uint64_t acc, uint64_t val) +{ + return (acc ^ XXH64_round(0, val)) * XXH_PRIME64_1 + XXH_PRIME64_4; +} + +static inline uint64_t XXH64_mergerounds(uint64_t v1, uint64_t v2, + uint64_t v3, uint64_t v4) +{ + uint64_t h64; + + h64 = rol64(v1, 1) + rol64(v2, 7) + rol64(v3, 12) + rol64(v4, 18); + h64 = XXH64_mergeround(h64, v1); + h64 = XXH64_mergeround(h64, v2); + h64 = XXH64_mergeround(h64, v3); + h64 = XXH64_mergeround(h64, v4); + + return h64; +} + +static inline uint64_t XXH64_avalanche(uint64_t h64) +{ + h64 ^= h64 >> 33; + h64 *= XXH_PRIME64_2; + h64 ^= h64 >> 29; + h64 *= XXH_PRIME64_3; + h64 ^= h64 >> 32; + return h64; +} + +static inline uint64_t qemu_xxhash64_4(uint64_t a, uint64_t b, + uint64_t c, uint64_t d) +{ + uint64_t v1 = QEMU_XXHASH_SEED + XXH_PRIME64_1 + XXH_PRIME64_2; + uint64_t v2 = QEMU_XXHASH_SEED + XXH_PRIME64_2; + uint64_t v3 = QEMU_XXHASH_SEED + 0; + uint64_t v4 = QEMU_XXHASH_SEED - XXH_PRIME64_1; + + v1 = XXH64_round(v1, a); + v2 = XXH64_round(v2, b); + v3 = XXH64_round(v3, c); + v4 = XXH64_round(v4, d); + + return XXH64_avalanche(XXH64_mergerounds(v1, v2, v3, v4)); +} + #endif /* QEMU_XXHASH_H */ diff --git a/target/arm/cpu-param.h b/target/arm/cpu-param.h index 6321385..00e7d9e 100644 --- a/target/arm/cpu-param.h +++ b/target/arm/cpu-param.h @@ -29,6 +29,6 @@ # define TARGET_PAGE_BITS_MIN 10 #endif -#define NB_MMU_MODES 11 +#define NB_MMU_MODES 15 #endif diff --git a/target/arm/cpu.c b/target/arm/cpu.c index 8387e94..40142ac 100644 --- a/target/arm/cpu.c +++ b/target/arm/cpu.c @@ -451,14 +451,14 @@ static inline bool arm_excp_unmasked(CPUState *cs, unsigned int excp_idx, break; case EXCP_VFIQ: - if (secure || !(hcr_el2 & HCR_FMO) || (hcr_el2 & HCR_TGE)) { - /* VFIQs are only taken when hypervized and non-secure. */ + if (!(hcr_el2 & HCR_FMO) || (hcr_el2 & HCR_TGE)) { + /* VFIQs are only taken when hypervized. */ return false; } return !(env->daif & PSTATE_F); case EXCP_VIRQ: - if (secure || !(hcr_el2 & HCR_IMO) || (hcr_el2 & HCR_TGE)) { - /* VIRQs are only taken when hypervized and non-secure. */ + if (!(hcr_el2 & HCR_IMO) || (hcr_el2 & HCR_TGE)) { + /* VIRQs are only taken when hypervized. */ return false; } return !(env->daif & PSTATE_I); @@ -480,7 +480,7 @@ static inline bool arm_excp_unmasked(CPUState *cs, unsigned int excp_idx, * masked from Secure state. The HCR and SCR settings * don't affect the masking logic, only the interrupt routing. */ - if (target_el == 3 || !secure) { + if (target_el == 3 || !secure || (env->cp15.scr_el3 & SCR_EEL2)) { unmasked = true; } } else { @@ -1320,6 +1320,19 @@ void arm_cpu_finalize_features(ARMCPU *cpu, Error **errp) error_propagate(errp, local_err); return; } + + /* + * KVM does not support modifications to this feature. + * We have not registered the cpu properties when KVM + * is in use, so the user will not be able to set them. + */ + if (!kvm_enabled()) { + arm_cpu_pauth_finalize(cpu, &local_err); + if (local_err != NULL) { + error_propagate(errp, local_err); + return; + } + } } if (kvm_enabled()) { diff --git a/target/arm/cpu.h b/target/arm/cpu.h index 84cc2de..df0d677 100644 --- a/target/arm/cpu.h +++ b/target/arm/cpu.h @@ -168,6 +168,11 @@ typedef struct { uint32_t base_mask; } TCR; +#define VTCR_NSW (1u << 29) +#define VTCR_NSA (1u << 30) +#define VSTCR_SW VTCR_NSW +#define VSTCR_SA VTCR_NSA + /* Define a maximum sized vector register. * For 32-bit, this is a 128-bit NEON/AdvSIMD register. * For 64-bit, this is a 2048-bit SVE register. @@ -197,9 +202,11 @@ typedef struct { #ifdef TARGET_AARCH64 # define ARM_MAX_VQ 16 void arm_cpu_sve_finalize(ARMCPU *cpu, Error **errp); +void arm_cpu_pauth_finalize(ARMCPU *cpu, Error **errp); #else # define ARM_MAX_VQ 1 static inline void arm_cpu_sve_finalize(ARMCPU *cpu, Error **errp) { } +static inline void arm_cpu_pauth_finalize(ARMCPU *cpu, Error **errp) { } #endif typedef struct ARMVectorReg { @@ -323,9 +330,11 @@ typedef struct CPUARMState { uint64_t ttbr1_el[4]; }; uint64_t vttbr_el2; /* Virtualization Translation Table Base. */ + uint64_t vsttbr_el2; /* Secure Virtualization Translation Table. */ /* MMU translation table base control. */ TCR tcr_el[4]; TCR vtcr_el2; /* Virtualization Translation Control. */ + TCR vstcr_el2; /* Secure Virtualization Translation Control. */ uint32_t c2_data; /* MPU data cacheable bits. */ uint32_t c2_insn; /* MPU instruction cacheable bits. */ union { /* MMU domain access control register @@ -947,6 +956,14 @@ struct ARMCPU { uint64_t reset_cbar; uint32_t reset_auxcr; bool reset_hivecs; + + /* + * Intermediate values used during property parsing. + * Once finalized, the values should be read from ID_AA64ISAR1. + */ + bool prop_pauth; + bool prop_pauth_impdef; + /* DCZ blocksize, in log_2(words), ie low 4 bits of DCZID_EL0 */ uint32_t dcz_blocksize; uint64_t rvbar; @@ -1467,6 +1484,8 @@ static inline void xpsr_write(CPUARMState *env, uint32_t val, uint32_t mask) #define HCR_TWEDEN (1ULL << 59) #define HCR_TWEDEL MAKE_64BIT_MASK(60, 4) +#define HPFAR_NS (1ULL << 63) + #define SCR_NS (1U << 0) #define SCR_IRQ (1U << 1) #define SCR_FIQ (1U << 2) @@ -2138,6 +2157,21 @@ static inline bool arm_is_secure(CPUARMState *env) return arm_is_secure_below_el3(env); } +/* + * Return true if the current security state has AArch64 EL2 or AArch32 Hyp. + * This corresponds to the pseudocode EL2Enabled() + */ +static inline bool arm_is_el2_enabled(CPUARMState *env) +{ + if (arm_feature(env, ARM_FEATURE_EL2)) { + if (arm_is_secure_below_el3(env)) { + return (env->cp15.scr_el3 & SCR_EEL2) != 0; + } + return true; + } + return false; +} + #else static inline bool arm_is_secure_below_el3(CPUARMState *env) { @@ -2148,6 +2182,11 @@ static inline bool arm_is_secure(CPUARMState *env) { return false; } + +static inline bool arm_is_el2_enabled(CPUARMState *env) +{ + return false; +} #endif /** @@ -2175,7 +2214,8 @@ static inline bool arm_el_is_aa64(CPUARMState *env, int el) return aa64; } - if (arm_feature(env, ARM_FEATURE_EL3)) { + if (arm_feature(env, ARM_FEATURE_EL3) && + ((env->cp15.scr_el3 & SCR_NS) || !(env->cp15.scr_el3 & SCR_EEL2))) { aa64 = aa64 && (env->cp15.scr_el3 & SCR_RW); } @@ -2183,7 +2223,7 @@ static inline bool arm_el_is_aa64(CPUARMState *env, int el) return aa64; } - if (arm_feature(env, ARM_FEATURE_EL2) && !arm_is_secure_below_el3(env)) { + if (arm_is_el2_enabled(env)) { aa64 = aa64 && (env->cp15.hcr_el2 & HCR_RW); } @@ -3022,6 +3062,9 @@ bool write_cpustate_to_list(ARMCPU *cpu, bool kvm_sync); #define ARM_MMU_IDX_NOTLB 0x20 /* does not have a TLB */ #define ARM_MMU_IDX_M 0x40 /* M profile */ +/* Meanings of the bits for A profile mmu idx values */ +#define ARM_MMU_IDX_A_NS 0x8 + /* Meanings of the bits for M profile mmu idx values */ #define ARM_MMU_IDX_M_PRIV 0x1 #define ARM_MMU_IDX_M_NEGPRI 0x2 @@ -3035,20 +3078,22 @@ typedef enum ARMMMUIdx { /* * A-profile. */ - ARMMMUIdx_E10_0 = 0 | ARM_MMU_IDX_A, - ARMMMUIdx_E20_0 = 1 | ARM_MMU_IDX_A, - - ARMMMUIdx_E10_1 = 2 | ARM_MMU_IDX_A, - ARMMMUIdx_E10_1_PAN = 3 | ARM_MMU_IDX_A, - - ARMMMUIdx_E2 = 4 | ARM_MMU_IDX_A, - ARMMMUIdx_E20_2 = 5 | ARM_MMU_IDX_A, - ARMMMUIdx_E20_2_PAN = 6 | ARM_MMU_IDX_A, - - ARMMMUIdx_SE10_0 = 7 | ARM_MMU_IDX_A, - ARMMMUIdx_SE10_1 = 8 | ARM_MMU_IDX_A, - ARMMMUIdx_SE10_1_PAN = 9 | ARM_MMU_IDX_A, - ARMMMUIdx_SE3 = 10 | ARM_MMU_IDX_A, + ARMMMUIdx_SE10_0 = 0 | ARM_MMU_IDX_A, + ARMMMUIdx_SE20_0 = 1 | ARM_MMU_IDX_A, + ARMMMUIdx_SE10_1 = 2 | ARM_MMU_IDX_A, + ARMMMUIdx_SE20_2 = 3 | ARM_MMU_IDX_A, + ARMMMUIdx_SE10_1_PAN = 4 | ARM_MMU_IDX_A, + ARMMMUIdx_SE20_2_PAN = 5 | ARM_MMU_IDX_A, + ARMMMUIdx_SE2 = 6 | ARM_MMU_IDX_A, + ARMMMUIdx_SE3 = 7 | ARM_MMU_IDX_A, + + ARMMMUIdx_E10_0 = ARMMMUIdx_SE10_0 | ARM_MMU_IDX_A_NS, + ARMMMUIdx_E20_0 = ARMMMUIdx_SE20_0 | ARM_MMU_IDX_A_NS, + ARMMMUIdx_E10_1 = ARMMMUIdx_SE10_1 | ARM_MMU_IDX_A_NS, + ARMMMUIdx_E20_2 = ARMMMUIdx_SE20_2 | ARM_MMU_IDX_A_NS, + ARMMMUIdx_E10_1_PAN = ARMMMUIdx_SE10_1_PAN | ARM_MMU_IDX_A_NS, + ARMMMUIdx_E20_2_PAN = ARMMMUIdx_SE20_2_PAN | ARM_MMU_IDX_A_NS, + ARMMMUIdx_E2 = ARMMMUIdx_SE2 | ARM_MMU_IDX_A_NS, /* * These are not allocated TLBs and are used only for AT system @@ -3057,6 +3102,9 @@ typedef enum ARMMMUIdx { ARMMMUIdx_Stage1_E0 = 0 | ARM_MMU_IDX_NOTLB, ARMMMUIdx_Stage1_E1 = 1 | ARM_MMU_IDX_NOTLB, ARMMMUIdx_Stage1_E1_PAN = 2 | ARM_MMU_IDX_NOTLB, + ARMMMUIdx_Stage1_SE0 = 3 | ARM_MMU_IDX_NOTLB, + ARMMMUIdx_Stage1_SE1 = 4 | ARM_MMU_IDX_NOTLB, + ARMMMUIdx_Stage1_SE1_PAN = 5 | ARM_MMU_IDX_NOTLB, /* * Not allocated a TLB: used only for second stage of an S12 page * table walk, or for descriptor loads during first stage of an S1 @@ -3064,7 +3112,8 @@ typedef enum ARMMMUIdx { * then various TLB flush insns which currently are no-ops or flush * only stage 1 MMU indexes will need to change to flush stage 2. */ - ARMMMUIdx_Stage2 = 3 | ARM_MMU_IDX_NOTLB, + ARMMMUIdx_Stage2 = 6 | ARM_MMU_IDX_NOTLB, + ARMMMUIdx_Stage2_S = 7 | ARM_MMU_IDX_NOTLB, /* * M-profile. @@ -3095,8 +3144,12 @@ typedef enum ARMMMUIdxBit { TO_CORE_BIT(E20_2), TO_CORE_BIT(E20_2_PAN), TO_CORE_BIT(SE10_0), + TO_CORE_BIT(SE20_0), TO_CORE_BIT(SE10_1), + TO_CORE_BIT(SE20_2), TO_CORE_BIT(SE10_1_PAN), + TO_CORE_BIT(SE20_2_PAN), + TO_CORE_BIT(SE2), TO_CORE_BIT(SE3), TO_CORE_BIT(MUser), @@ -3127,7 +3180,7 @@ static inline int arm_debug_target_el(CPUARMState *env) bool secure = arm_is_secure(env); bool route_to_el2 = false; - if (arm_feature(env, ARM_FEATURE_EL2) && !secure) { + if (arm_is_el2_enabled(env)) { route_to_el2 = env->cp15.hcr_el2 & HCR_TGE || env->cp15.mdcr_el2 & MDCR_TDE; } @@ -3918,10 +3971,8 @@ static inline bool isar_feature_aa64_fcma(const ARMISARegisters *id) static inline bool isar_feature_aa64_pauth(const ARMISARegisters *id) { /* - * Note that while QEMU will only implement the architected algorithm - * QARMA, and thus APA+GPA, the host cpu for kvm may use implementation - * defined algorithms, and thus API+GPI, and this predicate controls - * migration of the 128-bit keys. + * Return true if any form of pauth is enabled, as this + * predicate controls migration of the 128-bit keys. */ return (id->id_aa64isar1 & (FIELD_DP64(0, ID_AA64ISAR1, APA, 0xf) | @@ -3930,6 +3981,15 @@ static inline bool isar_feature_aa64_pauth(const ARMISARegisters *id) FIELD_DP64(0, ID_AA64ISAR1, GPI, 0xf))) != 0; } +static inline bool isar_feature_aa64_pauth_arch(const ARMISARegisters *id) +{ + /* + * Return true if pauth is enabled with the architected QARMA algorithm. + * QEMU will always set APA+GPA to the same value. + */ + return FIELD_EX64(id->id_aa64isar1, ID_AA64ISAR1, APA) != 0; +} + static inline bool isar_feature_aa64_sb(const ARMISARegisters *id) { return FIELD_EX64(id->id_aa64isar1, ID_AA64ISAR1, SB) != 0; @@ -3977,6 +4037,11 @@ static inline bool isar_feature_aa64_sve(const ARMISARegisters *id) return FIELD_EX64(id->id_aa64pfr0, ID_AA64PFR0, SVE) != 0; } +static inline bool isar_feature_aa64_sel2(const ARMISARegisters *id) +{ + return FIELD_EX64(id->id_aa64pfr0, ID_AA64PFR0, SEL2) != 0; +} + static inline bool isar_feature_aa64_vh(const ARMISARegisters *id) { return FIELD_EX64(id->id_aa64mmfr1, ID_AA64MMFR1, VH) != 0; diff --git a/target/arm/cpu64.c b/target/arm/cpu64.c index da24f94..5e85102 100644 --- a/target/arm/cpu64.c +++ b/target/arm/cpu64.c @@ -28,6 +28,8 @@ #include "sysemu/kvm.h" #include "kvm_arm.h" #include "qapi/visitor.h" +#include "hw/qdev-properties.h" + #ifndef CONFIG_USER_ONLY static uint64_t a57_a53_l2ctlr_read(CPUARMState *env, const ARMCPRegInfo *ri) @@ -486,6 +488,12 @@ static void cpu_max_set_sve_max_vq(Object *obj, Visitor *v, const char *name, cpu->sve_max_vq = max_vq; } +/* + * Note that cpu_arm_get/set_sve_vq cannot use the simpler + * object_property_add_bool interface because they make use + * of the contents of "name" to determine which bit on which + * to operate. + */ static void cpu_arm_get_sve_vq(Object *obj, Visitor *v, const char *name, void *opaque, Error **errp) { @@ -527,26 +535,17 @@ static void cpu_arm_set_sve_vq(Object *obj, Visitor *v, const char *name, set_bit(vq - 1, cpu->sve_vq_init); } -static void cpu_arm_get_sve(Object *obj, Visitor *v, const char *name, - void *opaque, Error **errp) +static bool cpu_arm_get_sve(Object *obj, Error **errp) { ARMCPU *cpu = ARM_CPU(obj); - bool value = cpu_isar_feature(aa64_sve, cpu); - - visit_type_bool(v, name, &value, errp); + return cpu_isar_feature(aa64_sve, cpu); } -static void cpu_arm_set_sve(Object *obj, Visitor *v, const char *name, - void *opaque, Error **errp) +static void cpu_arm_set_sve(Object *obj, bool value, Error **errp) { ARMCPU *cpu = ARM_CPU(obj); - bool value; uint64_t t; - if (!visit_type_bool(v, name, &value, errp)) { - return; - } - if (value && kvm_enabled() && !kvm_arm_sve_supported()) { error_setg(errp, "'sve' feature not supported by KVM on this host"); return; @@ -561,8 +560,7 @@ void aarch64_add_sve_properties(Object *obj) { uint32_t vq; - object_property_add(obj, "sve", "bool", cpu_arm_get_sve, - cpu_arm_set_sve, NULL, NULL); + object_property_add_bool(obj, "sve", cpu_arm_get_sve, cpu_arm_set_sve); for (vq = 1; vq <= ARM_MAX_VQ; ++vq) { char name[8]; @@ -572,6 +570,36 @@ void aarch64_add_sve_properties(Object *obj) } } +void arm_cpu_pauth_finalize(ARMCPU *cpu, Error **errp) +{ + int arch_val = 0, impdef_val = 0; + uint64_t t; + + /* TODO: Handle HaveEnhancedPAC, HaveEnhancedPAC2, HaveFPAC. */ + if (cpu->prop_pauth) { + if (cpu->prop_pauth_impdef) { + impdef_val = 1; + } else { + arch_val = 1; + } + } else if (cpu->prop_pauth_impdef) { + error_setg(errp, "cannot enable pauth-impdef without pauth"); + error_append_hint(errp, "Add pauth=on to the CPU property list.\n"); + } + + t = cpu->isar.id_aa64isar1; + t = FIELD_DP64(t, ID_AA64ISAR1, APA, arch_val); + t = FIELD_DP64(t, ID_AA64ISAR1, GPA, arch_val); + t = FIELD_DP64(t, ID_AA64ISAR1, API, impdef_val); + t = FIELD_DP64(t, ID_AA64ISAR1, GPI, impdef_val); + cpu->isar.id_aa64isar1 = t; +} + +static Property arm_cpu_pauth_property = + DEFINE_PROP_BOOL("pauth", ARMCPU, prop_pauth, true); +static Property arm_cpu_pauth_impdef_property = + DEFINE_PROP_BOOL("pauth-impdef", ARMCPU, prop_pauth_impdef, false); + /* -cpu max: if KVM is enabled, like -cpu host (best possible with this host); * otherwise, a CPU with as many features enabled as our emulation supports. * The version of '-cpu max' for qemu-system-arm is defined in cpu.c; @@ -627,10 +655,6 @@ static void aarch64_max_initfn(Object *obj) t = FIELD_DP64(t, ID_AA64ISAR1, DPB, 2); t = FIELD_DP64(t, ID_AA64ISAR1, JSCVT, 1); t = FIELD_DP64(t, ID_AA64ISAR1, FCMA, 1); - t = FIELD_DP64(t, ID_AA64ISAR1, APA, 1); /* PAuth, architected only */ - t = FIELD_DP64(t, ID_AA64ISAR1, API, 0); - t = FIELD_DP64(t, ID_AA64ISAR1, GPA, 1); - t = FIELD_DP64(t, ID_AA64ISAR1, GPI, 0); t = FIELD_DP64(t, ID_AA64ISAR1, SB, 1); t = FIELD_DP64(t, ID_AA64ISAR1, SPECRES, 1); t = FIELD_DP64(t, ID_AA64ISAR1, FRINTTS, 1); @@ -641,6 +665,7 @@ static void aarch64_max_initfn(Object *obj) t = FIELD_DP64(t, ID_AA64PFR0, SVE, 1); t = FIELD_DP64(t, ID_AA64PFR0, FP, 1); t = FIELD_DP64(t, ID_AA64PFR0, ADVSIMD, 1); + t = FIELD_DP64(t, ID_AA64PFR0, SEL2, 1); cpu->isar.id_aa64pfr0 = t; t = cpu->isar.id_aa64pfr1; @@ -721,6 +746,10 @@ static void aarch64_max_initfn(Object *obj) cpu->ctr = 0x80038003; /* 32 byte I and D cacheline size, VIPT icache */ cpu->dcz_blocksize = 7; /* 512 bytes */ #endif + + /* Default to PAUTH on, with the architected algorithm. */ + qdev_property_add_static(DEVICE(obj), &arm_cpu_pauth_property); + qdev_property_add_static(DEVICE(obj), &arm_cpu_pauth_impdef_property); } aarch64_add_sve_properties(obj); diff --git a/target/arm/helper-a64.c b/target/arm/helper-a64.c index 30b2ad1..c426c23 100644 --- a/target/arm/helper-a64.c +++ b/target/arm/helper-a64.c @@ -972,8 +972,7 @@ void HELPER(exception_return)(CPUARMState *env, uint64_t new_pc) if (new_el == -1) { goto illegal_return; } - if (new_el > cur_el - || (new_el == 2 && !arm_feature(env, ARM_FEATURE_EL2))) { + if (new_el > cur_el || (new_el == 2 && !arm_is_el2_enabled(env))) { /* Disallow return to an EL which is unimplemented or higher * than the current one. */ @@ -985,11 +984,6 @@ void HELPER(exception_return)(CPUARMState *env, uint64_t new_pc) goto illegal_return; } - if (new_el == 2 && arm_is_secure_below_el3(env)) { - /* Return to the non-existent secure-EL2 */ - goto illegal_return; - } - if (new_el == 1 && (arm_hcr_el2_eff(env) & HCR_TGE)) { goto illegal_return; } diff --git a/target/arm/helper.c b/target/arm/helper.c index c5377e7..d2ead3f 100644 --- a/target/arm/helper.c +++ b/target/arm/helper.c @@ -533,12 +533,20 @@ static CPAccessResult access_trap_aa32s_el1(CPUARMState *env, return CP_ACCESS_OK; } if (arm_is_secure_below_el3(env)) { + if (env->cp15.scr_el3 & SCR_EEL2) { + return CP_ACCESS_TRAP_EL2; + } return CP_ACCESS_TRAP_EL3; } /* This will be EL1 NS and EL2 NS, which just UNDEF */ return CP_ACCESS_TRAP_UNCATEGORIZED; } +static uint64_t arm_mdcr_el2_eff(CPUARMState *env) +{ + return arm_is_el2_enabled(env) ? env->cp15.mdcr_el2 : 0; +} + /* Check for traps to "powerdown debug" registers, which are controlled * by MDCR.TDOSA */ @@ -546,11 +554,11 @@ static CPAccessResult access_tdosa(CPUARMState *env, const ARMCPRegInfo *ri, bool isread) { int el = arm_current_el(env); - bool mdcr_el2_tdosa = (env->cp15.mdcr_el2 & MDCR_TDOSA) || - (env->cp15.mdcr_el2 & MDCR_TDE) || + uint64_t mdcr_el2 = arm_mdcr_el2_eff(env); + bool mdcr_el2_tdosa = (mdcr_el2 & MDCR_TDOSA) || (mdcr_el2 & MDCR_TDE) || (arm_hcr_el2_eff(env) & HCR_TGE); - if (el < 2 && mdcr_el2_tdosa && !arm_is_secure_below_el3(env)) { + if (el < 2 && mdcr_el2_tdosa) { return CP_ACCESS_TRAP_EL2; } if (el < 3 && (env->cp15.mdcr_el3 & MDCR_TDOSA)) { @@ -566,11 +574,11 @@ static CPAccessResult access_tdra(CPUARMState *env, const ARMCPRegInfo *ri, bool isread) { int el = arm_current_el(env); - bool mdcr_el2_tdra = (env->cp15.mdcr_el2 & MDCR_TDRA) || - (env->cp15.mdcr_el2 & MDCR_TDE) || + uint64_t mdcr_el2 = arm_mdcr_el2_eff(env); + bool mdcr_el2_tdra = (mdcr_el2 & MDCR_TDRA) || (mdcr_el2 & MDCR_TDE) || (arm_hcr_el2_eff(env) & HCR_TGE); - if (el < 2 && mdcr_el2_tdra && !arm_is_secure_below_el3(env)) { + if (el < 2 && mdcr_el2_tdra) { return CP_ACCESS_TRAP_EL2; } if (el < 3 && (env->cp15.mdcr_el3 & MDCR_TDA)) { @@ -586,11 +594,11 @@ static CPAccessResult access_tda(CPUARMState *env, const ARMCPRegInfo *ri, bool isread) { int el = arm_current_el(env); - bool mdcr_el2_tda = (env->cp15.mdcr_el2 & MDCR_TDA) || - (env->cp15.mdcr_el2 & MDCR_TDE) || + uint64_t mdcr_el2 = arm_mdcr_el2_eff(env); + bool mdcr_el2_tda = (mdcr_el2 & MDCR_TDA) || (mdcr_el2 & MDCR_TDE) || (arm_hcr_el2_eff(env) & HCR_TGE); - if (el < 2 && mdcr_el2_tda && !arm_is_secure_below_el3(env)) { + if (el < 2 && mdcr_el2_tda) { return CP_ACCESS_TRAP_EL2; } if (el < 3 && (env->cp15.mdcr_el3 & MDCR_TDA)) { @@ -606,9 +614,9 @@ static CPAccessResult access_tpm(CPUARMState *env, const ARMCPRegInfo *ri, bool isread) { int el = arm_current_el(env); + uint64_t mdcr_el2 = arm_mdcr_el2_eff(env); - if (el < 2 && (env->cp15.mdcr_el2 & MDCR_TPM) - && !arm_is_secure_below_el3(env)) { + if (el < 2 && (mdcr_el2 & MDCR_TPM)) { return CP_ACCESS_TRAP_EL2; } if (el < 3 && (env->cp15.mdcr_el3 & MDCR_TPM)) { @@ -1049,8 +1057,8 @@ static CPAccessResult cpacr_access(CPUARMState *env, const ARMCPRegInfo *ri, { if (arm_feature(env, ARM_FEATURE_V8)) { /* Check if CPACR accesses are to be trapped to EL2 */ - if (arm_current_el(env) == 1 && - (env->cp15.cptr_el[2] & CPTR_TCPAC) && !arm_is_secure(env)) { + if (arm_current_el(env) == 1 && arm_is_el2_enabled(env) && + (env->cp15.cptr_el[2] & CPTR_TCPAC)) { return CP_ACCESS_TRAP_EL2; /* Check if CPACR accesses are to be trapped to EL3 */ } else if (arm_current_el(env) < 3 && @@ -1348,12 +1356,12 @@ static CPAccessResult pmreg_access(CPUARMState *env, const ARMCPRegInfo *ri, * trapping to EL2 or EL3 for other accesses. */ int el = arm_current_el(env); + uint64_t mdcr_el2 = arm_mdcr_el2_eff(env); if (el == 0 && !(env->cp15.c9_pmuserenr & 1)) { return CP_ACCESS_TRAP; } - if (el < 2 && (env->cp15.mdcr_el2 & MDCR_TPM) - && !arm_is_secure_below_el3(env)) { + if (el < 2 && (mdcr_el2 & MDCR_TPM)) { return CP_ACCESS_TRAP_EL2; } if (el < 3 && (env->cp15.mdcr_el3 & MDCR_TPM)) { @@ -1432,7 +1440,8 @@ static bool pmu_counter_enabled(CPUARMState *env, uint8_t counter) bool enabled, prohibited, filtered; bool secure = arm_is_secure(env); int el = arm_current_el(env); - uint8_t hpmn = env->cp15.mdcr_el2 & MDCR_HPMN; + uint64_t mdcr_el2 = arm_mdcr_el2_eff(env); + uint8_t hpmn = mdcr_el2 & MDCR_HPMN; if (!arm_feature(env, ARM_FEATURE_PMU)) { return false; @@ -1442,13 +1451,13 @@ static bool pmu_counter_enabled(CPUARMState *env, uint8_t counter) (counter < hpmn || counter == 31)) { e = env->cp15.c9_pmcr & PMCRE; } else { - e = env->cp15.mdcr_el2 & MDCR_HPME; + e = mdcr_el2 & MDCR_HPME; } enabled = e && (env->cp15.c9_pmcnten & (1 << counter)); if (!secure) { if (el == 2 && (counter < hpmn || counter == 31)) { - prohibited = env->cp15.mdcr_el2 & MDCR_HPMD; + prohibited = mdcr_el2 & MDCR_HPMD; } else { prohibited = false; } @@ -2024,6 +2033,9 @@ static void scr_write(CPUARMState *env, const ARMCPRegInfo *ri, uint64_t value) if (cpu_isar_feature(aa64_pauth, cpu)) { valid_mask |= SCR_API | SCR_APK; } + if (cpu_isar_feature(aa64_sel2, cpu)) { + valid_mask |= SCR_EEL2; + } if (cpu_isar_feature(aa64_mte, cpu)) { valid_mask |= SCR_ATA; } @@ -2084,13 +2096,11 @@ static void csselr_write(CPUARMState *env, const ARMCPRegInfo *ri, static uint64_t isr_read(CPUARMState *env, const ARMCPRegInfo *ri) { CPUState *cs = env_cpu(env); - uint64_t hcr_el2 = arm_hcr_el2_eff(env); + bool el1 = arm_current_el(env) == 1; + uint64_t hcr_el2 = el1 ? arm_hcr_el2_eff(env) : 0; uint64_t ret = 0; - bool allow_virt = (arm_current_el(env) == 1 && - (!arm_is_secure_below_el3(env) || - (env->cp15.scr_el3 & SCR_EEL2))); - if (allow_virt && (hcr_el2 & HCR_IMO)) { + if (hcr_el2 & HCR_IMO) { if (cs->interrupt_request & CPU_INTERRUPT_VIRQ) { ret |= CPSR_I; } @@ -2100,7 +2110,7 @@ static uint64_t isr_read(CPUARMState *env, const ARMCPRegInfo *ri) } } - if (allow_virt && (hcr_el2 & HCR_FMO)) { + if (hcr_el2 & HCR_FMO) { if (cs->interrupt_request & CPU_INTERRUPT_VFIQ) { ret |= CPSR_F; } @@ -2522,7 +2532,7 @@ static CPAccessResult gt_counter_access(CPUARMState *env, int timeridx, bool isread) { unsigned int cur_el = arm_current_el(env); - bool secure = arm_is_secure(env); + bool has_el2 = arm_is_el2_enabled(env); uint64_t hcr = arm_hcr_el2_eff(env); switch (cur_el) { @@ -2546,8 +2556,7 @@ static CPAccessResult gt_counter_access(CPUARMState *env, int timeridx, } } else { /* If HCR_EL2.<E2H> == 0: check CNTHCTL_EL2.EL1PCEN. */ - if (arm_feature(env, ARM_FEATURE_EL2) && - timeridx == GTIMER_PHYS && !secure && + if (has_el2 && timeridx == GTIMER_PHYS && !extract32(env->cp15.cnthctl_el2, 1, 1)) { return CP_ACCESS_TRAP_EL2; } @@ -2556,8 +2565,7 @@ static CPAccessResult gt_counter_access(CPUARMState *env, int timeridx, case 1: /* Check CNTHCTL_EL2.EL1PCTEN, which changes location based on E2H. */ - if (arm_feature(env, ARM_FEATURE_EL2) && - timeridx == GTIMER_PHYS && !secure && + if (has_el2 && timeridx == GTIMER_PHYS && (hcr & HCR_E2H ? !extract32(env->cp15.cnthctl_el2, 10, 1) : !extract32(env->cp15.cnthctl_el2, 0, 1))) { @@ -2572,7 +2580,7 @@ static CPAccessResult gt_timer_access(CPUARMState *env, int timeridx, bool isread) { unsigned int cur_el = arm_current_el(env); - bool secure = arm_is_secure(env); + bool has_el2 = arm_is_el2_enabled(env); uint64_t hcr = arm_hcr_el2_eff(env); switch (cur_el) { @@ -2593,8 +2601,7 @@ static CPAccessResult gt_timer_access(CPUARMState *env, int timeridx, /* fall through */ case 1: - if (arm_feature(env, ARM_FEATURE_EL2) && - timeridx == GTIMER_PHYS && !secure) { + if (has_el2 && timeridx == GTIMER_PHYS) { if (hcr & HCR_E2H) { /* If HCR_EL2.<E2H,TGE> == '10': check CNTHCTL_EL2.EL1PTEN. */ if (!extract32(env->cp15.cnthctl_el2, 11, 1)) { @@ -2861,6 +2868,9 @@ static int gt_phys_redir_timeridx(CPUARMState *env) case ARMMMUIdx_E20_0: case ARMMMUIdx_E20_2: case ARMMMUIdx_E20_2_PAN: + case ARMMMUIdx_SE20_0: + case ARMMMUIdx_SE20_2: + case ARMMMUIdx_SE20_2_PAN: return GTIMER_HYP; default: return GTIMER_PHYS; @@ -2873,6 +2883,9 @@ static int gt_virt_redir_timeridx(CPUARMState *env) case ARMMMUIdx_E20_0: case ARMMMUIdx_E20_2: case ARMMMUIdx_E20_2_PAN: + case ARMMMUIdx_SE20_0: + case ARMMMUIdx_SE20_2: + case ARMMMUIdx_SE20_2_PAN: return GTIMER_HYPVIRT; default: return GTIMER_VIRT; @@ -3381,13 +3394,16 @@ static CPAccessResult ats_access(CPUARMState *env, const ARMCPRegInfo *ri, bool isread) { if (ri->opc2 & 4) { - /* The ATS12NSO* operations must trap to EL3 if executed in + /* The ATS12NSO* operations must trap to EL3 or EL2 if executed in * Secure EL1 (which can only happen if EL3 is AArch64). * They are simply UNDEF if executed from NS EL1. * They function normally from EL2 or EL3. */ if (arm_current_el(env) == 1) { if (arm_is_secure_below_el3(env)) { + if (env->cp15.scr_el3 & SCR_EEL2) { + return CP_ACCESS_TRAP_UNCATEGORIZED_EL2; + } return CP_ACCESS_TRAP_UNCATEGORIZED_EL3; } return CP_ACCESS_TRAP_UNCATEGORIZED; @@ -3423,7 +3439,7 @@ static uint64_t do_ats_write(CPUARMState *env, uint64_t value, uint32_t syn, fsr, fsc; bool take_exc = false; - if (fi.s1ptw && current_el == 1 && !arm_is_secure(env) + if (fi.s1ptw && current_el == 1 && arm_mmu_idx_is_stage1_of_2(mmu_idx)) { /* * Synchronous stage 2 fault on an access made as part of the @@ -3438,6 +3454,9 @@ static uint64_t do_ats_write(CPUARMState *env, uint64_t value, target_el = 3; } else { env->cp15.hpfar_el2 = extract64(fi.s2addr, 12, 47) << 4; + if (arm_is_secure_below_el3(env) && fi.s1ns) { + env->cp15.hpfar_el2 |= HPFAR_NS; + } target_el = 2; } take_exc = true; @@ -3576,14 +3595,14 @@ static void ats_write(CPUARMState *env, const ARMCPRegInfo *ri, uint64_t value) mmu_idx = ARMMMUIdx_SE3; break; case 2: - g_assert(!secure); /* TODO: ARMv8.4-SecEL2 */ + g_assert(!secure); /* ARMv8.4-SecEL2 is 64-bit only */ /* fall through */ case 1: if (ri->crm == 9 && (env->uncached_cpsr & CPSR_PAN)) { - mmu_idx = (secure ? ARMMMUIdx_SE10_1_PAN + mmu_idx = (secure ? ARMMMUIdx_Stage1_SE1_PAN : ARMMMUIdx_Stage1_E1_PAN); } else { - mmu_idx = secure ? ARMMMUIdx_SE10_1 : ARMMMUIdx_Stage1_E1; + mmu_idx = secure ? ARMMMUIdx_Stage1_SE1 : ARMMMUIdx_Stage1_E1; } break; default: @@ -3597,10 +3616,11 @@ static void ats_write(CPUARMState *env, const ARMCPRegInfo *ri, uint64_t value) mmu_idx = ARMMMUIdx_SE10_0; break; case 2: + g_assert(!secure); /* ARMv8.4-SecEL2 is 64-bit only */ mmu_idx = ARMMMUIdx_Stage1_E0; break; case 1: - mmu_idx = secure ? ARMMMUIdx_SE10_0 : ARMMMUIdx_Stage1_E0; + mmu_idx = secure ? ARMMMUIdx_Stage1_SE0 : ARMMMUIdx_Stage1_E0; break; default: g_assert_not_reached(); @@ -3646,7 +3666,8 @@ static void ats1h_write(CPUARMState *env, const ARMCPRegInfo *ri, static CPAccessResult at_s1e2_access(CPUARMState *env, const ARMCPRegInfo *ri, bool isread) { - if (arm_current_el(env) == 3 && !(env->cp15.scr_el3 & SCR_NS)) { + if (arm_current_el(env) == 3 && + !(env->cp15.scr_el3 & (SCR_NS | SCR_EEL2))) { return CP_ACCESS_TRAP; } return CP_ACCESS_OK; @@ -3665,14 +3686,14 @@ static void ats_write64(CPUARMState *env, const ARMCPRegInfo *ri, switch (ri->opc1) { case 0: /* AT S1E1R, AT S1E1W, AT S1E1RP, AT S1E1WP */ if (ri->crm == 9 && (env->pstate & PSTATE_PAN)) { - mmu_idx = (secure ? ARMMMUIdx_SE10_1_PAN + mmu_idx = (secure ? ARMMMUIdx_Stage1_SE1_PAN : ARMMMUIdx_Stage1_E1_PAN); } else { - mmu_idx = secure ? ARMMMUIdx_SE10_1 : ARMMMUIdx_Stage1_E1; + mmu_idx = secure ? ARMMMUIdx_Stage1_SE1 : ARMMMUIdx_Stage1_E1; } break; case 4: /* AT S1E2R, AT S1E2W */ - mmu_idx = ARMMMUIdx_E2; + mmu_idx = secure ? ARMMMUIdx_SE2 : ARMMMUIdx_E2; break; case 6: /* AT S1E3R, AT S1E3W */ mmu_idx = ARMMMUIdx_SE3; @@ -3682,7 +3703,7 @@ static void ats_write64(CPUARMState *env, const ARMCPRegInfo *ri, } break; case 2: /* AT S1E0R, AT S1E0W */ - mmu_idx = secure ? ARMMMUIdx_SE10_0 : ARMMMUIdx_Stage1_E0; + mmu_idx = secure ? ARMMMUIdx_Stage1_SE0 : ARMMMUIdx_Stage1_E0; break; case 4: /* AT S12E1R, AT S12E1W */ mmu_idx = secure ? ARMMMUIdx_SE10_1 : ARMMMUIdx_E10_1; @@ -3987,10 +4008,15 @@ static void vmsa_tcr_ttbr_el2_write(CPUARMState *env, const ARMCPRegInfo *ri, */ if (extract64(raw_read(env, ri) ^ value, 48, 16) && (arm_hcr_el2_eff(env) & HCR_E2H)) { - tlb_flush_by_mmuidx(env_cpu(env), - ARMMMUIdxBit_E20_2 | - ARMMMUIdxBit_E20_2_PAN | - ARMMMUIdxBit_E20_0); + uint16_t mask = ARMMMUIdxBit_E20_2 | + ARMMMUIdxBit_E20_2_PAN | + ARMMMUIdxBit_E20_0; + + if (arm_is_secure_below_el3(env)) { + mask >>= ARM_MMU_IDX_A_NS; + } + + tlb_flush_by_mmuidx(env_cpu(env), mask); } raw_write(env, ri, value); } @@ -4006,10 +4032,15 @@ static void vttbr_write(CPUARMState *env, const ARMCPRegInfo *ri, * the combined stage 1&2 tlbs (EL10_1 and EL10_0). */ if (raw_read(env, ri) != value) { - tlb_flush_by_mmuidx(cs, - ARMMMUIdxBit_E10_1 | - ARMMMUIdxBit_E10_1_PAN | - ARMMMUIdxBit_E10_0); + uint16_t mask = ARMMMUIdxBit_E10_1 | + ARMMMUIdxBit_E10_1_PAN | + ARMMMUIdxBit_E10_0; + + if (arm_is_secure_below_el3(env)) { + mask >>= ARM_MMU_IDX_A_NS; + } + + tlb_flush_by_mmuidx(cs, mask); raw_write(env, ri, value); } } @@ -4250,11 +4281,9 @@ static const ARMCPRegInfo strongarm_cp_reginfo[] = { static uint64_t midr_read(CPUARMState *env, const ARMCPRegInfo *ri) { - ARMCPU *cpu = env_archcpu(env); unsigned int cur_el = arm_current_el(env); - bool secure = arm_is_secure(env); - if (arm_feature(&cpu->env, ARM_FEATURE_EL2) && !secure && cur_el == 1) { + if (arm_is_el2_enabled(env) && cur_el == 1) { return env->cp15.vpidr_el2; } return raw_read(env, ri); @@ -4281,9 +4310,8 @@ static uint64_t mpidr_read_val(CPUARMState *env) static uint64_t mpidr_read(CPUARMState *env, const ARMCPRegInfo *ri) { unsigned int cur_el = arm_current_el(env); - bool secure = arm_is_secure(env); - if (arm_feature(env, ARM_FEATURE_EL2) && !secure && cur_el == 1) { + if (arm_is_el2_enabled(env) && cur_el == 1) { return env->cp15.vmpidr_el2; } return mpidr_read_val(env); @@ -4441,21 +4469,24 @@ static CPAccessResult aa64_cacheop_pou_access(CPUARMState *env, static int vae1_tlbmask(CPUARMState *env) { - /* Since we exclude secure first, we may read HCR_EL2 directly. */ - if (arm_is_secure_below_el3(env)) { - return ARMMMUIdxBit_SE10_1 | - ARMMMUIdxBit_SE10_1_PAN | - ARMMMUIdxBit_SE10_0; - } else if ((env->cp15.hcr_el2 & (HCR_E2H | HCR_TGE)) - == (HCR_E2H | HCR_TGE)) { - return ARMMMUIdxBit_E20_2 | + uint64_t hcr = arm_hcr_el2_eff(env); + uint16_t mask; + + if ((hcr & (HCR_E2H | HCR_TGE)) == (HCR_E2H | HCR_TGE)) { + mask = ARMMMUIdxBit_E20_2 | ARMMMUIdxBit_E20_2_PAN | ARMMMUIdxBit_E20_0; } else { - return ARMMMUIdxBit_E10_1 | + mask = ARMMMUIdxBit_E10_1 | ARMMMUIdxBit_E10_1_PAN | ARMMMUIdxBit_E10_0; } + + if (arm_is_secure_below_el3(env)) { + mask >>= ARM_MMU_IDX_A_NS; + } + + return mask; } /* Return 56 if TBI is enabled, 64 otherwise. */ @@ -4471,17 +4502,20 @@ static int tlbbits_for_regime(CPUARMState *env, ARMMMUIdx mmu_idx, static int vae1_tlbbits(CPUARMState *env, uint64_t addr) { + uint64_t hcr = arm_hcr_el2_eff(env); ARMMMUIdx mmu_idx; /* Only the regime of the mmu_idx below is significant. */ - if (arm_is_secure_below_el3(env)) { - mmu_idx = ARMMMUIdx_SE10_0; - } else if ((env->cp15.hcr_el2 & (HCR_E2H | HCR_TGE)) - == (HCR_E2H | HCR_TGE)) { + if ((hcr & (HCR_E2H | HCR_TGE)) == (HCR_E2H | HCR_TGE)) { mmu_idx = ARMMMUIdx_E20_0; } else { mmu_idx = ARMMMUIdx_E10_0; } + + if (arm_is_secure_below_el3(env)) { + mmu_idx &= ~ARM_MMU_IDX_A_NS; + } + return tlbbits_for_regime(env, mmu_idx, addr); } @@ -4527,11 +4561,17 @@ static int alle1_tlbmask(CPUARMState *env) static int e2_tlbmask(CPUARMState *env) { - /* TODO: ARMv8.4-SecEL2 */ - return ARMMMUIdxBit_E20_0 | - ARMMMUIdxBit_E20_2 | - ARMMMUIdxBit_E20_2_PAN | - ARMMMUIdxBit_E2; + if (arm_is_secure_below_el3(env)) { + return ARMMMUIdxBit_SE20_0 | + ARMMMUIdxBit_SE20_2 | + ARMMMUIdxBit_SE20_2_PAN | + ARMMMUIdxBit_SE2; + } else { + return ARMMMUIdxBit_E20_0 | + ARMMMUIdxBit_E20_2 | + ARMMMUIdxBit_E20_2_PAN | + ARMMMUIdxBit_E2; + } } static void tlbi_aa64_alle1_write(CPUARMState *env, const ARMCPRegInfo *ri, @@ -4651,10 +4691,12 @@ static void tlbi_aa64_vae2is_write(CPUARMState *env, const ARMCPRegInfo *ri, { CPUState *cs = env_cpu(env); uint64_t pageaddr = sextract64(value << 12, 0, 56); - int bits = tlbbits_for_regime(env, ARMMMUIdx_E2, pageaddr); + bool secure = arm_is_secure_below_el3(env); + int mask = secure ? ARMMMUIdxBit_SE2 : ARMMMUIdxBit_E2; + int bits = tlbbits_for_regime(env, secure ? ARMMMUIdx_E2 : ARMMMUIdx_SE2, + pageaddr); - tlb_flush_page_bits_by_mmuidx_all_cpus_synced(cs, pageaddr, - ARMMMUIdxBit_E2, bits); + tlb_flush_page_bits_by_mmuidx_all_cpus_synced(cs, pageaddr, mask, bits); } static void tlbi_aa64_vae3is_write(CPUARMState *env, const ARMCPRegInfo *ri, @@ -5350,7 +5392,7 @@ uint64_t arm_hcr_el2_eff(CPUARMState *env) { uint64_t ret = env->cp15.hcr_el2; - if (arm_is_secure_below_el3(env)) { + if (!arm_is_el2_enabled(env)) { /* * "This register has no effect if EL2 is not enabled in the * current Security state". This is ARMv8.4-SecEL2 speak for @@ -5696,16 +5738,40 @@ static const ARMCPRegInfo el2_v8_cp_reginfo[] = { REGINFO_SENTINEL }; +static CPAccessResult sel2_access(CPUARMState *env, const ARMCPRegInfo *ri, + bool isread) +{ + if (arm_current_el(env) == 3 || arm_is_secure_below_el3(env)) { + return CP_ACCESS_OK; + } + return CP_ACCESS_TRAP_UNCATEGORIZED; +} + +static const ARMCPRegInfo el2_sec_cp_reginfo[] = { + { .name = "VSTTBR_EL2", .state = ARM_CP_STATE_AA64, + .opc0 = 3, .opc1 = 4, .crn = 2, .crm = 6, .opc2 = 0, + .access = PL2_RW, .accessfn = sel2_access, + .fieldoffset = offsetof(CPUARMState, cp15.vsttbr_el2) }, + { .name = "VSTCR_EL2", .state = ARM_CP_STATE_AA64, + .opc0 = 3, .opc1 = 4, .crn = 2, .crm = 6, .opc2 = 2, + .access = PL2_RW, .accessfn = sel2_access, + .fieldoffset = offsetof(CPUARMState, cp15.vstcr_el2) }, + REGINFO_SENTINEL +}; + static CPAccessResult nsacr_access(CPUARMState *env, const ARMCPRegInfo *ri, bool isread) { /* The NSACR is RW at EL3, and RO for NS EL1 and NS EL2. - * At Secure EL1 it traps to EL3. + * At Secure EL1 it traps to EL3 or EL2. */ if (arm_current_el(env) == 3) { return CP_ACCESS_OK; } if (arm_is_secure_below_el3(env)) { + if (env->cp15.scr_el3 & SCR_EEL2) { + return CP_ACCESS_TRAP_EL2; + } return CP_ACCESS_TRAP_EL3; } /* Accesses from EL1 NS and EL2 NS are UNDEF for write but allow reads. */ @@ -6147,7 +6213,7 @@ int sve_exception_el(CPUARMState *env, int el) /* CPTR_EL2. Since TZ and TFP are positive, * they will be zero when EL2 is not present. */ - if (el <= 2 && !arm_is_secure_below_el3(env)) { + if (el <= 2 && arm_is_el2_enabled(env)) { if (env->cp15.cptr_el[2] & CPTR_TZ) { return 2; } @@ -7708,6 +7774,9 @@ void register_cp_regs_for_features(ARMCPU *cpu) if (arm_feature(env, ARM_FEATURE_V8)) { define_arm_cp_regs(cpu, el2_v8_cp_reginfo); } + if (cpu_isar_feature(aa64_sel2, cpu)) { + define_arm_cp_regs(cpu, el2_sec_cp_reginfo); + } /* RVBAR_EL2 is only implemented if EL2 is the highest EL */ if (!arm_feature(env, ARM_FEATURE_EL3)) { ARMCPRegInfo rvbar = { @@ -8722,8 +8791,7 @@ static int bad_mode_switch(CPUARMState *env, int mode, CPSRWriteType write_type) } return 0; case ARM_CPU_MODE_HYP: - return !arm_feature(env, ARM_FEATURE_EL2) - || arm_current_el(env) < 2 || arm_is_secure_below_el3(env); + return !arm_is_el2_enabled(env) || arm_current_el(env) < 2; case ARM_CPU_MODE_MON: return arm_current_el(env) < 3; default: @@ -9005,13 +9073,13 @@ static const int8_t target_el_table[2][2][2][2][2][4] = { {{/* 0 1 1 0 */{ 3, 3, 3, -1 },{ 3, -1, -1, 3 },}, {/* 0 1 1 1 */{ 3, 3, 3, -1 },{ 3, -1, -1, 3 },},},},}, {{{{/* 1 0 0 0 */{ 1, 1, 2, -1 },{ 1, 1, -1, 1 },}, - {/* 1 0 0 1 */{ 2, 2, 2, -1 },{ 1, 1, -1, 1 },},}, - {{/* 1 0 1 0 */{ 1, 1, 1, -1 },{ 1, 1, -1, 1 },}, - {/* 1 0 1 1 */{ 2, 2, 2, -1 },{ 1, 1, -1, 1 },},},}, + {/* 1 0 0 1 */{ 2, 2, 2, -1 },{ 2, 2, -1, 1 },},}, + {{/* 1 0 1 0 */{ 1, 1, 1, -1 },{ 1, 1, 1, 1 },}, + {/* 1 0 1 1 */{ 2, 2, 2, -1 },{ 2, 2, 2, 1 },},},}, {{{/* 1 1 0 0 */{ 3, 3, 3, -1 },{ 3, 3, -1, 3 },}, {/* 1 1 0 1 */{ 3, 3, 3, -1 },{ 3, 3, -1, 3 },},}, - {{/* 1 1 1 0 */{ 3, 3, 3, -1 },{ 3, 3, -1, 3 },}, - {/* 1 1 1 1 */{ 3, 3, 3, -1 },{ 3, 3, -1, 3 },},},},}, + {{/* 1 1 1 0 */{ 3, 3, 3, -1 },{ 3, 3, 3, 3 },}, + {/* 1 1 1 1 */{ 3, 3, 3, -1 },{ 3, 3, 3, 3 },},},},}, }; /* @@ -9957,7 +10025,8 @@ uint64_t arm_sctlr(CPUARMState *env, int el) /* Only EL0 needs to be adjusted for EL1&0 or EL2&0. */ if (el == 0) { ARMMMUIdx mmu_idx = arm_mmu_idx_el(env, 0); - el = (mmu_idx == ARMMMUIdx_E20_0 ? 2 : 1); + el = (mmu_idx == ARMMMUIdx_E20_0 || mmu_idx == ARMMMUIdx_SE20_0) + ? 2 : 1; } return env->cp15.sctlr_el[el]; } @@ -9974,6 +10043,8 @@ static inline uint64_t regime_sctlr(CPUARMState *env, ARMMMUIdx mmu_idx) static inline bool regime_translation_disabled(CPUARMState *env, ARMMMUIdx mmu_idx) { + uint64_t hcr_el2; + if (arm_feature(env, ARM_FEATURE_M)) { switch (env->v7m.mpu_ctrl[regime_is_secure(env, mmu_idx)] & (R_V7M_MPU_CTRL_ENABLE_MASK | R_V7M_MPU_CTRL_HFNMIENA_MASK)) { @@ -9992,19 +10063,21 @@ static inline bool regime_translation_disabled(CPUARMState *env, } } - if (mmu_idx == ARMMMUIdx_Stage2) { + hcr_el2 = arm_hcr_el2_eff(env); + + if (mmu_idx == ARMMMUIdx_Stage2 || mmu_idx == ARMMMUIdx_Stage2_S) { /* HCR.DC means HCR.VM behaves as 1 */ - return (env->cp15.hcr_el2 & (HCR_DC | HCR_VM)) == 0; + return (hcr_el2 & (HCR_DC | HCR_VM)) == 0; } - if (env->cp15.hcr_el2 & HCR_TGE) { + if (hcr_el2 & HCR_TGE) { /* TGE means that NS EL0/1 act as if SCTLR_EL1.M is zero */ if (!regime_is_secure(env, mmu_idx) && regime_el(env, mmu_idx) == 1) { return true; } } - if ((env->cp15.hcr_el2 & HCR_DC) && arm_mmu_idx_is_stage1_of_2(mmu_idx)) { + if ((hcr_el2 & HCR_DC) && arm_mmu_idx_is_stage1_of_2(mmu_idx)) { /* HCR.DC means SCTLR_EL1.M behaves as 0 */ return true; } @@ -10025,6 +10098,9 @@ static inline uint64_t regime_ttbr(CPUARMState *env, ARMMMUIdx mmu_idx, if (mmu_idx == ARMMMUIdx_Stage2) { return env->cp15.vttbr_el2; } + if (mmu_idx == ARMMMUIdx_Stage2_S) { + return env->cp15.vsttbr_el2; + } if (ttbrn == 0) { return env->cp15.ttbr0_el[regime_el(env, mmu_idx)]; } else { @@ -10040,6 +10116,12 @@ static inline uint64_t regime_ttbr(CPUARMState *env, ARMMMUIdx mmu_idx, static inline ARMMMUIdx stage_1_mmu_idx(ARMMMUIdx mmu_idx) { switch (mmu_idx) { + case ARMMMUIdx_SE10_0: + return ARMMMUIdx_Stage1_SE0; + case ARMMMUIdx_SE10_1: + return ARMMMUIdx_Stage1_SE1; + case ARMMMUIdx_SE10_1_PAN: + return ARMMMUIdx_Stage1_SE1_PAN; case ARMMMUIdx_E10_0: return ARMMMUIdx_Stage1_E0; case ARMMMUIdx_E10_1: @@ -10082,7 +10164,9 @@ static inline bool regime_is_user(CPUARMState *env, ARMMMUIdx mmu_idx) switch (mmu_idx) { case ARMMMUIdx_SE10_0: case ARMMMUIdx_E20_0: + case ARMMMUIdx_SE20_0: case ARMMMUIdx_Stage1_E0: + case ARMMMUIdx_Stage1_SE0: case ARMMMUIdx_MUser: case ARMMMUIdx_MSUser: case ARMMMUIdx_MUserNegPri: @@ -10248,6 +10332,7 @@ static int get_S1prot(CPUARMState *env, ARMMMUIdx mmu_idx, bool is_aa64, int wxn = 0; assert(mmu_idx != ARMMMUIdx_Stage2); + assert(mmu_idx != ARMMMUIdx_Stage2_S); user_rw = simple_ap_to_rw_prot_is_user(ap, true); if (is_user) { @@ -10333,7 +10418,7 @@ static bool get_level1_table_address(CPUARMState *env, ARMMMUIdx mmu_idx, /* Translate a S1 pagetable walk through S2 if needed. */ static hwaddr S1_ptw_translate(CPUARMState *env, ARMMMUIdx mmu_idx, - hwaddr addr, MemTxAttrs txattrs, + hwaddr addr, bool *is_secure, ARMMMUFaultInfo *fi) { if (arm_mmu_idx_is_stage1_of_2(mmu_idx) && @@ -10342,10 +10427,12 @@ static hwaddr S1_ptw_translate(CPUARMState *env, ARMMMUIdx mmu_idx, hwaddr s2pa; int s2prot; int ret; + ARMMMUIdx s2_mmu_idx = *is_secure ? ARMMMUIdx_Stage2_S + : ARMMMUIdx_Stage2; ARMCacheAttrs cacheattrs = {}; + MemTxAttrs txattrs = {}; - ret = get_phys_addr_lpae(env, addr, MMU_DATA_LOAD, ARMMMUIdx_Stage2, - false, + ret = get_phys_addr_lpae(env, addr, MMU_DATA_LOAD, s2_mmu_idx, false, &s2pa, &txattrs, &s2prot, &s2size, fi, &cacheattrs); if (ret) { @@ -10353,9 +10440,11 @@ static hwaddr S1_ptw_translate(CPUARMState *env, ARMMMUIdx mmu_idx, fi->s2addr = addr; fi->stage2 = true; fi->s1ptw = true; + fi->s1ns = !*is_secure; return ~0; } - if ((env->cp15.hcr_el2 & HCR_PTW) && (cacheattrs.attrs & 0xf0) == 0) { + if ((arm_hcr_el2_eff(env) & HCR_PTW) && + (cacheattrs.attrs & 0xf0) == 0) { /* * PTW set and S1 walk touched S2 Device memory: * generate Permission fault. @@ -10364,8 +10453,21 @@ static hwaddr S1_ptw_translate(CPUARMState *env, ARMMMUIdx mmu_idx, fi->s2addr = addr; fi->stage2 = true; fi->s1ptw = true; + fi->s1ns = !*is_secure; return ~0; } + + if (arm_is_secure_below_el3(env)) { + /* Check if page table walk is to secure or non-secure PA space. */ + if (*is_secure) { + *is_secure = !(env->cp15.vstcr_el2.raw_tcr & VSTCR_SW); + } else { + *is_secure = !(env->cp15.vtcr_el2.raw_tcr & VTCR_NSW); + } + } else { + assert(!*is_secure); + } + addr = s2pa; } return addr; @@ -10382,9 +10484,9 @@ static uint32_t arm_ldl_ptw(CPUState *cs, hwaddr addr, bool is_secure, AddressSpace *as; uint32_t data; + addr = S1_ptw_translate(env, mmu_idx, addr, &is_secure, fi); attrs.secure = is_secure; as = arm_addressspace(cs, attrs); - addr = S1_ptw_translate(env, mmu_idx, addr, attrs, fi); if (fi->s1ptw) { return 0; } @@ -10411,9 +10513,9 @@ static uint64_t arm_ldq_ptw(CPUState *cs, hwaddr addr, bool is_secure, AddressSpace *as; uint64_t data; + addr = S1_ptw_translate(env, mmu_idx, addr, &is_secure, fi); attrs.secure = is_secure; as = arm_addressspace(cs, attrs); - addr = S1_ptw_translate(env, mmu_idx, addr, attrs, fi); if (fi->s1ptw) { return 0; } @@ -10788,7 +10890,7 @@ static uint8_t convert_stage2_attrs(CPUARMState *env, uint8_t s2attrs) uint8_t hihint = 0, lohint = 0; if (hiattr != 0) { /* normal memory */ - if ((env->cp15.hcr_el2 & HCR_CD) != 0) { /* cache disabled */ + if (arm_hcr_el2_eff(env) & HCR_CD) { /* cache disabled */ hiattr = loattr = 1; /* non-cacheable */ } else { if (hiattr != 1) { /* Write-through or write-back */ @@ -10808,7 +10910,7 @@ static int aa64_va_parameter_tbi(uint64_t tcr, ARMMMUIdx mmu_idx) { if (regime_has_2_ranges(mmu_idx)) { return extract64(tcr, 37, 2); - } else if (mmu_idx == ARMMMUIdx_Stage2) { + } else if (mmu_idx == ARMMMUIdx_Stage2 || mmu_idx == ARMMMUIdx_Stage2_S) { return 0; /* VTCR_EL2 */ } else { /* Replicate the single TBI bit so we always have 2 bits. */ @@ -10820,7 +10922,7 @@ static int aa64_va_parameter_tbid(uint64_t tcr, ARMMMUIdx mmu_idx) { if (regime_has_2_ranges(mmu_idx)) { return extract64(tcr, 51, 2); - } else if (mmu_idx == ARMMMUIdx_Stage2) { + } else if (mmu_idx == ARMMMUIdx_Stage2 || mmu_idx == ARMMMUIdx_Stage2_S) { return 0; /* VTCR_EL2 */ } else { /* Replicate the single TBID bit so we always have 2 bits. */ @@ -10850,7 +10952,7 @@ ARMVAParameters aa64_va_parameters(CPUARMState *env, uint64_t va, tsz = extract32(tcr, 0, 6); using64k = extract32(tcr, 14, 1); using16k = extract32(tcr, 15, 1); - if (mmu_idx == ARMMMUIdx_Stage2) { + if (mmu_idx == ARMMMUIdx_Stage2 || mmu_idx == ARMMMUIdx_Stage2_S) { /* VTCR_EL2 */ hpd = false; } else { @@ -10915,6 +11017,8 @@ static ARMVAParameters aa32_va_parameters(CPUARMState *env, uint32_t va, int select, tsz; bool epd, hpd; + assert(mmu_idx != ARMMMUIdx_Stage2_S); + if (mmu_idx == ARMMMUIdx_Stage2) { /* VTCR */ bool sext = extract32(tcr, 4, 1); @@ -11080,7 +11184,7 @@ static bool get_phys_addr_lpae(CPUARMState *env, uint64_t address, goto do_fault; } - if (mmu_idx != ARMMMUIdx_Stage2) { + if (mmu_idx != ARMMMUIdx_Stage2 && mmu_idx != ARMMMUIdx_Stage2_S) { /* The starting level depends on the virtual address size (which can * be up to 48 bits) and the translation granule size. It indicates * the number of strides (stride bits at a time) needed to @@ -11188,7 +11292,7 @@ static bool get_phys_addr_lpae(CPUARMState *env, uint64_t address, attrs = extract64(descriptor, 2, 10) | (extract64(descriptor, 52, 12) << 10); - if (mmu_idx == ARMMMUIdx_Stage2) { + if (mmu_idx == ARMMMUIdx_Stage2 || mmu_idx == ARMMMUIdx_Stage2_S) { /* Stage 2 table descriptors do not include any attribute fields */ break; } @@ -11218,8 +11322,8 @@ static bool get_phys_addr_lpae(CPUARMState *env, uint64_t address, ap = extract32(attrs, 4, 2); - if (mmu_idx == ARMMMUIdx_Stage2) { - ns = true; + if (mmu_idx == ARMMMUIdx_Stage2 || mmu_idx == ARMMMUIdx_Stage2_S) { + ns = mmu_idx == ARMMMUIdx_Stage2; xn = extract32(attrs, 11, 2); *prot = get_S2prot(env, ap, xn, s1_is_el0); } else { @@ -11246,7 +11350,7 @@ static bool get_phys_addr_lpae(CPUARMState *env, uint64_t address, arm_tlb_bti_gp(txattrs) = true; } - if (mmu_idx == ARMMMUIdx_Stage2) { + if (mmu_idx == ARMMMUIdx_Stage2 || mmu_idx == ARMMMUIdx_Stage2_S) { cacheattrs->attrs = convert_stage2_attrs(env, extract32(attrs, 0, 4)); } else { /* Index into MAIR registers for cache attributes */ @@ -11265,7 +11369,9 @@ do_fault: fi->type = fault_type; fi->level = level; /* Tag the error as S2 for failed S1 PTW at S2 or ordinary S2. */ - fi->stage2 = fi->s1ptw || (mmu_idx == ARMMMUIdx_Stage2); + fi->stage2 = fi->s1ptw || (mmu_idx == ARMMMUIdx_Stage2 || + mmu_idx == ARMMMUIdx_Stage2_S); + fi->s1ns = mmu_idx == ARMMMUIdx_Stage2; return true; } @@ -12084,21 +12190,22 @@ bool get_phys_addr(CPUARMState *env, target_ulong address, target_ulong *page_size, ARMMMUFaultInfo *fi, ARMCacheAttrs *cacheattrs) { - if (mmu_idx == ARMMMUIdx_E10_0 || - mmu_idx == ARMMMUIdx_E10_1 || - mmu_idx == ARMMMUIdx_E10_1_PAN) { + ARMMMUIdx s1_mmu_idx = stage_1_mmu_idx(mmu_idx); + + if (mmu_idx != s1_mmu_idx) { /* Call ourselves recursively to do the stage 1 and then stage 2 - * translations. + * translations if mmu_idx is a two-stage regime. */ if (arm_feature(env, ARM_FEATURE_EL2)) { hwaddr ipa; int s2_prot; int ret; ARMCacheAttrs cacheattrs2 = {}; + ARMMMUIdx s2_mmu_idx; + bool is_el0; - ret = get_phys_addr(env, address, access_type, - stage_1_mmu_idx(mmu_idx), &ipa, attrs, - prot, page_size, fi, cacheattrs); + ret = get_phys_addr(env, address, access_type, s1_mmu_idx, &ipa, + attrs, prot, page_size, fi, cacheattrs); /* If S1 fails or S2 is disabled, return early. */ if (ret || regime_translation_disabled(env, ARMMMUIdx_Stage2)) { @@ -12106,9 +12213,11 @@ bool get_phys_addr(CPUARMState *env, target_ulong address, return ret; } + s2_mmu_idx = attrs->secure ? ARMMMUIdx_Stage2_S : ARMMMUIdx_Stage2; + is_el0 = mmu_idx == ARMMMUIdx_E10_0 || mmu_idx == ARMMMUIdx_SE10_0; + /* S1 is done. Now do S2 translation. */ - ret = get_phys_addr_lpae(env, ipa, access_type, ARMMMUIdx_Stage2, - mmu_idx == ARMMMUIdx_E10_0, + ret = get_phys_addr_lpae(env, ipa, access_type, s2_mmu_idx, is_el0, phys_ptr, attrs, &s2_prot, page_size, fi, &cacheattrs2); fi->s2addr = ipa; @@ -12121,7 +12230,7 @@ bool get_phys_addr(CPUARMState *env, target_ulong address, } /* Combine the S1 and S2 cache attributes. */ - if (env->cp15.hcr_el2 & HCR_DC) { + if (arm_hcr_el2_eff(env) & HCR_DC) { /* * HCR.DC forces the first stage attributes to * Normal Non-Shareable, @@ -12135,6 +12244,18 @@ bool get_phys_addr(CPUARMState *env, target_ulong address, cacheattrs->shareability = 0; } *cacheattrs = combine_cacheattrs(*cacheattrs, cacheattrs2); + + /* Check if IPA translates to secure or non-secure PA space. */ + if (arm_is_secure_below_el3(env)) { + if (attrs->secure) { + attrs->secure = + !(env->cp15.vstcr_el2.raw_tcr & (VSTCR_SA | VSTCR_SW)); + } else { + attrs->secure = + !((env->cp15.vtcr_el2.raw_tcr & (VTCR_NSA | VTCR_NSW)) + || (env->cp15.vstcr_el2.raw_tcr & VSTCR_SA)); + } + } return 0; } else { /* @@ -12203,7 +12324,7 @@ bool get_phys_addr(CPUARMState *env, target_ulong address, * MMU disabled. S1 addresses within aa64 translation regimes are * still checked for bounds -- see AArch64.TranslateAddressS1Off. */ - if (mmu_idx != ARMMMUIdx_Stage2) { + if (mmu_idx != ARMMMUIdx_Stage2 && mmu_idx != ARMMMUIdx_Stage2_S) { int r_el = regime_el(env, mmu_idx); if (arm_el_is_aa64(env, r_el)) { int pamax = arm_pamax(env_archcpu(env)); @@ -12649,7 +12770,7 @@ int fp_exception_el(CPUARMState *env, int cur_el) /* CPTR_EL2 : present in v7VE or v8 */ if (cur_el <= 2 && extract32(env->cp15.cptr_el[2], 10, 1) - && !arm_is_secure_below_el3(env)) { + && arm_is_el2_enabled(env)) { /* Trap FP ops at EL2, NS-EL1 or NS-EL0 to EL2 */ return 2; } @@ -12674,6 +12795,7 @@ int arm_mmu_idx_to_el(ARMMMUIdx mmu_idx) case ARMMMUIdx_E10_0: case ARMMMUIdx_E20_0: case ARMMMUIdx_SE10_0: + case ARMMMUIdx_SE20_0: return 0; case ARMMMUIdx_E10_1: case ARMMMUIdx_E10_1_PAN: @@ -12683,6 +12805,9 @@ int arm_mmu_idx_to_el(ARMMMUIdx mmu_idx) case ARMMMUIdx_E2: case ARMMMUIdx_E20_2: case ARMMMUIdx_E20_2_PAN: + case ARMMMUIdx_SE2: + case ARMMMUIdx_SE20_2: + case ARMMMUIdx_SE20_2_PAN: return 2; case ARMMMUIdx_SE3: return 3; @@ -12700,6 +12825,9 @@ ARMMMUIdx arm_v7m_mmu_idx_for_secstate(CPUARMState *env, bool secstate) ARMMMUIdx arm_mmu_idx_el(CPUARMState *env, int el) { + ARMMMUIdx idx; + uint64_t hcr; + if (arm_feature(env, ARM_FEATURE_M)) { return arm_v7m_mmu_idx_for_secstate(env, env->v7m.secure); } @@ -12707,40 +12835,43 @@ ARMMMUIdx arm_mmu_idx_el(CPUARMState *env, int el) /* See ARM pseudo-function ELIsInHost. */ switch (el) { case 0: - if (arm_is_secure_below_el3(env)) { - return ARMMMUIdx_SE10_0; - } - if ((env->cp15.hcr_el2 & (HCR_E2H | HCR_TGE)) == (HCR_E2H | HCR_TGE) - && arm_el_is_aa64(env, 2)) { - return ARMMMUIdx_E20_0; + hcr = arm_hcr_el2_eff(env); + if ((hcr & (HCR_E2H | HCR_TGE)) == (HCR_E2H | HCR_TGE)) { + idx = ARMMMUIdx_E20_0; + } else { + idx = ARMMMUIdx_E10_0; } - return ARMMMUIdx_E10_0; + break; case 1: - if (arm_is_secure_below_el3(env)) { - if (env->pstate & PSTATE_PAN) { - return ARMMMUIdx_SE10_1_PAN; - } - return ARMMMUIdx_SE10_1; - } if (env->pstate & PSTATE_PAN) { - return ARMMMUIdx_E10_1_PAN; + idx = ARMMMUIdx_E10_1_PAN; + } else { + idx = ARMMMUIdx_E10_1; } - return ARMMMUIdx_E10_1; + break; case 2: - /* TODO: ARMv8.4-SecEL2 */ /* Note that TGE does not apply at EL2. */ - if ((env->cp15.hcr_el2 & HCR_E2H) && arm_el_is_aa64(env, 2)) { + if (arm_hcr_el2_eff(env) & HCR_E2H) { if (env->pstate & PSTATE_PAN) { - return ARMMMUIdx_E20_2_PAN; + idx = ARMMMUIdx_E20_2_PAN; + } else { + idx = ARMMMUIdx_E20_2; } - return ARMMMUIdx_E20_2; + } else { + idx = ARMMMUIdx_E2; } - return ARMMMUIdx_E2; + break; case 3: return ARMMMUIdx_SE3; default: g_assert_not_reached(); } + + if (arm_is_secure_below_el3(env)) { + idx &= ~ARM_MMU_IDX_A_NS; + } + + return idx; } ARMMMUIdx arm_mmu_idx(CPUARMState *env) @@ -12905,7 +13036,8 @@ static uint32_t rebuild_hflags_a64(CPUARMState *env, int el, int fp_el, break; case ARMMMUIdx_E20_2: case ARMMMUIdx_E20_2_PAN: - /* TODO: ARMv8.4-SecEL2 */ + case ARMMMUIdx_SE20_2: + case ARMMMUIdx_SE20_2_PAN: /* * Note that EL20_2 is gated by HCR_EL2.E2H == 1, but EL20_0 is * gated by HCR_EL2.<E2H,TGE> == '11', and so is LDTR. diff --git a/target/arm/internals.h b/target/arm/internals.h index 5460678..853fa88 100644 --- a/target/arm/internals.h +++ b/target/arm/internals.h @@ -593,6 +593,7 @@ typedef enum ARMFaultType { * @s2addr: Address that caused a fault at stage 2 * @stage2: True if we faulted at stage 2 * @s1ptw: True if we faulted at stage 2 while doing a stage 1 page-table walk + * @s1ns: True if we faulted on a non-secure IPA while in secure state * @ea: True if we should set the EA (external abort type) bit in syndrome */ typedef struct ARMMMUFaultInfo ARMMMUFaultInfo; @@ -603,6 +604,7 @@ struct ARMMMUFaultInfo { int domain; bool stage2; bool s1ptw; + bool s1ns; bool ea; }; @@ -851,6 +853,9 @@ static inline bool regime_has_2_ranges(ARMMMUIdx mmu_idx) case ARMMMUIdx_Stage1_E0: case ARMMMUIdx_Stage1_E1: case ARMMMUIdx_Stage1_E1_PAN: + case ARMMMUIdx_Stage1_SE0: + case ARMMMUIdx_Stage1_SE1: + case ARMMMUIdx_Stage1_SE1_PAN: case ARMMMUIdx_E10_0: case ARMMMUIdx_E10_1: case ARMMMUIdx_E10_1_PAN: @@ -860,6 +865,9 @@ static inline bool regime_has_2_ranges(ARMMMUIdx mmu_idx) case ARMMMUIdx_SE10_0: case ARMMMUIdx_SE10_1: case ARMMMUIdx_SE10_1_PAN: + case ARMMMUIdx_SE20_0: + case ARMMMUIdx_SE20_2: + case ARMMMUIdx_SE20_2_PAN: return true; default: return false; @@ -890,6 +898,14 @@ static inline bool regime_is_secure(CPUARMState *env, ARMMMUIdx mmu_idx) case ARMMMUIdx_SE10_0: case ARMMMUIdx_SE10_1: case ARMMMUIdx_SE10_1_PAN: + case ARMMMUIdx_SE20_0: + case ARMMMUIdx_SE20_2: + case ARMMMUIdx_SE20_2_PAN: + case ARMMMUIdx_Stage1_SE0: + case ARMMMUIdx_Stage1_SE1: + case ARMMMUIdx_Stage1_SE1_PAN: + case ARMMMUIdx_SE2: + case ARMMMUIdx_Stage2_S: case ARMMMUIdx_MSPrivNegPri: case ARMMMUIdx_MSUserNegPri: case ARMMMUIdx_MSPriv: @@ -904,9 +920,11 @@ static inline bool regime_is_pan(CPUARMState *env, ARMMMUIdx mmu_idx) { switch (mmu_idx) { case ARMMMUIdx_Stage1_E1_PAN: + case ARMMMUIdx_Stage1_SE1_PAN: case ARMMMUIdx_E10_1_PAN: case ARMMMUIdx_E20_2_PAN: case ARMMMUIdx_SE10_1_PAN: + case ARMMMUIdx_SE20_2_PAN: return true; default: return false; @@ -917,21 +935,29 @@ static inline bool regime_is_pan(CPUARMState *env, ARMMMUIdx mmu_idx) static inline uint32_t regime_el(CPUARMState *env, ARMMMUIdx mmu_idx) { switch (mmu_idx) { + case ARMMMUIdx_SE20_0: + case ARMMMUIdx_SE20_2: + case ARMMMUIdx_SE20_2_PAN: case ARMMMUIdx_E20_0: case ARMMMUIdx_E20_2: case ARMMMUIdx_E20_2_PAN: case ARMMMUIdx_Stage2: + case ARMMMUIdx_Stage2_S: + case ARMMMUIdx_SE2: case ARMMMUIdx_E2: return 2; case ARMMMUIdx_SE3: return 3; case ARMMMUIdx_SE10_0: + case ARMMMUIdx_Stage1_SE0: return arm_el_is_aa64(env, 3) ? 1 : 3; case ARMMMUIdx_SE10_1: case ARMMMUIdx_SE10_1_PAN: case ARMMMUIdx_Stage1_E0: case ARMMMUIdx_Stage1_E1: case ARMMMUIdx_Stage1_E1_PAN: + case ARMMMUIdx_Stage1_SE1: + case ARMMMUIdx_Stage1_SE1_PAN: case ARMMMUIdx_E10_0: case ARMMMUIdx_E10_1: case ARMMMUIdx_E10_1_PAN: @@ -955,6 +981,13 @@ static inline TCR *regime_tcr(CPUARMState *env, ARMMMUIdx mmu_idx) if (mmu_idx == ARMMMUIdx_Stage2) { return &env->cp15.vtcr_el2; } + if (mmu_idx == ARMMMUIdx_Stage2_S) { + /* + * Note: Secure stage 2 nominally shares fields from VTCR_EL2, but + * those are not currently used by QEMU, so just return VSTCR_EL2. + */ + return &env->cp15.vstcr_el2; + } return &env->cp15.tcr_el[regime_el(env, mmu_idx)]; } @@ -1157,6 +1190,9 @@ static inline bool arm_mmu_idx_is_stage1_of_2(ARMMMUIdx mmu_idx) case ARMMMUIdx_Stage1_E0: case ARMMMUIdx_Stage1_E1: case ARMMMUIdx_Stage1_E1_PAN: + case ARMMMUIdx_Stage1_SE0: + case ARMMMUIdx_Stage1_SE1: + case ARMMMUIdx_Stage1_SE1_PAN: return true; default: return false; @@ -1313,6 +1349,15 @@ void arm_log_exception(int idx); #define TAG_GRANULE (1 << LOG2_TAG_GRANULE) /* + * SVE predicates are 1/8 the size of SVE vectors, and cannot use + * the same simd_desc() encoding due to restrictions on size. + * Use these instead. + */ +FIELD(PREDDESC, OPRSZ, 0, 6) +FIELD(PREDDESC, ESZ, 6, 2) +FIELD(PREDDESC, DATA, 8, 24) + +/* * The SVE simd_data field, for memory ops, contains either * rd (5 bits) or a shift count (2 bits). */ diff --git a/target/arm/m_helper.c b/target/arm/m_helper.c index 6176003..731c435 100644 --- a/target/arm/m_helper.c +++ b/target/arm/m_helper.c @@ -1347,7 +1347,7 @@ static void do_v7m_exception_exit(ARMCPU *cpu) bool exc_secure = false; bool return_to_secure; bool ftype; - bool restore_s16_s31; + bool restore_s16_s31 = false; /* * If we're not in Handler mode then jumps to magic exception-exit diff --git a/target/arm/monitor.c b/target/arm/monitor.c index 198b14e..80c64fa 100644 --- a/target/arm/monitor.c +++ b/target/arm/monitor.c @@ -95,6 +95,7 @@ static const char *cpu_model_advertised_features[] = { "sve640", "sve768", "sve896", "sve1024", "sve1152", "sve1280", "sve1408", "sve1536", "sve1664", "sve1792", "sve1920", "sve2048", "kvm-no-adjvtime", "kvm-steal-time", + "pauth", "pauth-impdef", NULL }; diff --git a/target/arm/op_helper.c b/target/arm/op_helper.c index ff91fe6..5e0f123 100644 --- a/target/arm/op_helper.c +++ b/target/arm/op_helper.c @@ -652,10 +652,10 @@ void HELPER(access_check_cp_reg)(CPUARMState *env, void *rip, uint32_t syndrome, target_el = exception_target_el(env); break; case CP_ACCESS_TRAP_EL2: - /* Requesting a trap to EL2 when we're in EL3 or S-EL0/1 is + /* Requesting a trap to EL2 when we're in EL3 is * a bug in the access function. */ - assert(!arm_is_secure(env) && arm_current_el(env) != 3); + assert(arm_current_el(env) != 3); target_el = 2; break; case CP_ACCESS_TRAP_EL3: diff --git a/target/arm/pauth_helper.c b/target/arm/pauth_helper.c index 564c48f..cd6df18 100644 --- a/target/arm/pauth_helper.c +++ b/target/arm/pauth_helper.c @@ -24,6 +24,7 @@ #include "exec/cpu_ldst.h" #include "exec/helper-proto.h" #include "tcg/tcg-gvec-desc.h" +#include "qemu/xxhash.h" static uint64_t pac_cell_shuffle(uint64_t i) @@ -207,8 +208,8 @@ static uint64_t tweak_inv_shuffle(uint64_t i) return o; } -static uint64_t pauth_computepac(uint64_t data, uint64_t modifier, - ARMPACKey key) +static uint64_t pauth_computepac_architected(uint64_t data, uint64_t modifier, + ARMPACKey key) { static const uint64_t RC[5] = { 0x0000000000000000ull, @@ -272,6 +273,22 @@ static uint64_t pauth_computepac(uint64_t data, uint64_t modifier, return workingval; } +static uint64_t pauth_computepac_impdef(uint64_t data, uint64_t modifier, + ARMPACKey key) +{ + return qemu_xxhash64_4(data, modifier, key.lo, key.hi); +} + +static uint64_t pauth_computepac(CPUARMState *env, uint64_t data, + uint64_t modifier, ARMPACKey key) +{ + if (cpu_isar_feature(aa64_pauth_arch, env_archcpu(env))) { + return pauth_computepac_architected(data, modifier, key); + } else { + return pauth_computepac_impdef(data, modifier, key); + } +} + static uint64_t pauth_addpac(CPUARMState *env, uint64_t ptr, uint64_t modifier, ARMPACKey *key, bool data) { @@ -292,7 +309,7 @@ static uint64_t pauth_addpac(CPUARMState *env, uint64_t ptr, uint64_t modifier, bot_bit = 64 - param.tsz; ext_ptr = deposit64(ptr, bot_bit, top_bit - bot_bit, ext); - pac = pauth_computepac(ext_ptr, modifier, *key); + pac = pauth_computepac(env, ext_ptr, modifier, *key); /* * Check if the ptr has good extension bits and corrupt the @@ -341,7 +358,7 @@ static uint64_t pauth_auth(CPUARMState *env, uint64_t ptr, uint64_t modifier, uint64_t pac, orig_ptr, test; orig_ptr = pauth_original_ptr(ptr, param); - pac = pauth_computepac(orig_ptr, modifier, *key); + pac = pauth_computepac(env, orig_ptr, modifier, *key); bot_bit = 64 - param.tsz; top_bit = 64 - 8 * param.tbi; @@ -442,7 +459,7 @@ uint64_t HELPER(pacga)(CPUARMState *env, uint64_t x, uint64_t y) uint64_t pac; pauth_check_trap(env, arm_current_el(env), GETPC()); - pac = pauth_computepac(x, y, env->keys.apga); + pac = pauth_computepac(env, x, y, env->keys.apga); return pac & 0xffffffff00000000ull; } diff --git a/target/arm/sve_helper.c b/target/arm/sve_helper.c index 5f037c3..844db08 100644 --- a/target/arm/sve_helper.c +++ b/target/arm/sve_helper.c @@ -889,8 +889,9 @@ static intptr_t last_active_element(uint64_t *g, intptr_t words, intptr_t esz) return (intptr_t)-1 << esz; } -uint32_t HELPER(sve_pfirst)(void *vd, void *vg, uint32_t words) +uint32_t HELPER(sve_pfirst)(void *vd, void *vg, uint32_t pred_desc) { + intptr_t words = DIV_ROUND_UP(FIELD_EX32(pred_desc, PREDDESC, OPRSZ), 8); uint32_t flags = PREDTEST_INIT; uint64_t *d = vd, *g = vg; intptr_t i = 0; @@ -914,8 +915,8 @@ uint32_t HELPER(sve_pfirst)(void *vd, void *vg, uint32_t words) uint32_t HELPER(sve_pnext)(void *vd, void *vg, uint32_t pred_desc) { - intptr_t words = extract32(pred_desc, 0, SIMD_OPRSZ_BITS); - intptr_t esz = extract32(pred_desc, SIMD_DATA_SHIFT, 2); + intptr_t words = DIV_ROUND_UP(FIELD_EX32(pred_desc, PREDDESC, OPRSZ), 8); + intptr_t esz = FIELD_EX32(pred_desc, PREDDESC, ESZ); uint32_t flags = PREDTEST_INIT; uint64_t *d = vd, *g = vg, esz_mask; intptr_t i, next; @@ -1867,9 +1868,9 @@ static uint64_t compress_bits(uint64_t x, int n) void HELPER(sve_zip_p)(void *vd, void *vn, void *vm, uint32_t pred_desc) { - intptr_t oprsz = extract32(pred_desc, 0, SIMD_OPRSZ_BITS) + 2; - int esz = extract32(pred_desc, SIMD_DATA_SHIFT, 2); - intptr_t high = extract32(pred_desc, SIMD_DATA_SHIFT + 2, 1); + intptr_t oprsz = FIELD_EX32(pred_desc, PREDDESC, OPRSZ); + int esz = FIELD_EX32(pred_desc, PREDDESC, ESZ); + intptr_t high = FIELD_EX32(pred_desc, PREDDESC, DATA); uint64_t *d = vd; intptr_t i; @@ -1928,9 +1929,9 @@ void HELPER(sve_zip_p)(void *vd, void *vn, void *vm, uint32_t pred_desc) void HELPER(sve_uzp_p)(void *vd, void *vn, void *vm, uint32_t pred_desc) { - intptr_t oprsz = extract32(pred_desc, 0, SIMD_OPRSZ_BITS) + 2; - int esz = extract32(pred_desc, SIMD_DATA_SHIFT, 2); - int odd = extract32(pred_desc, SIMD_DATA_SHIFT + 2, 1) << esz; + intptr_t oprsz = FIELD_EX32(pred_desc, PREDDESC, OPRSZ); + int esz = FIELD_EX32(pred_desc, PREDDESC, ESZ); + int odd = FIELD_EX32(pred_desc, PREDDESC, DATA) << esz; uint64_t *d = vd, *n = vn, *m = vm; uint64_t l, h; intptr_t i; @@ -1985,9 +1986,9 @@ void HELPER(sve_uzp_p)(void *vd, void *vn, void *vm, uint32_t pred_desc) void HELPER(sve_trn_p)(void *vd, void *vn, void *vm, uint32_t pred_desc) { - intptr_t oprsz = extract32(pred_desc, 0, SIMD_OPRSZ_BITS) + 2; - uintptr_t esz = extract32(pred_desc, SIMD_DATA_SHIFT, 2); - bool odd = extract32(pred_desc, SIMD_DATA_SHIFT + 2, 1); + intptr_t oprsz = FIELD_EX32(pred_desc, PREDDESC, OPRSZ); + int esz = FIELD_EX32(pred_desc, PREDDESC, ESZ); + int odd = FIELD_EX32(pred_desc, PREDDESC, DATA); uint64_t *d = vd, *n = vn, *m = vm; uint64_t mask; int shr, shl; @@ -2035,8 +2036,8 @@ static uint8_t reverse_bits_8(uint8_t x, int n) void HELPER(sve_rev_p)(void *vd, void *vn, uint32_t pred_desc) { - intptr_t oprsz = extract32(pred_desc, 0, SIMD_OPRSZ_BITS) + 2; - int esz = extract32(pred_desc, SIMD_DATA_SHIFT, 2); + intptr_t oprsz = FIELD_EX32(pred_desc, PREDDESC, OPRSZ); + int esz = FIELD_EX32(pred_desc, PREDDESC, ESZ); intptr_t i, oprsz_2 = oprsz / 2; if (oprsz <= 8) { @@ -2065,8 +2066,8 @@ void HELPER(sve_rev_p)(void *vd, void *vn, uint32_t pred_desc) void HELPER(sve_punpk_p)(void *vd, void *vn, uint32_t pred_desc) { - intptr_t oprsz = extract32(pred_desc, 0, SIMD_OPRSZ_BITS) + 2; - intptr_t high = extract32(pred_desc, SIMD_DATA_SHIFT + 2, 1); + intptr_t oprsz = FIELD_EX32(pred_desc, PREDDESC, OPRSZ); + intptr_t high = FIELD_EX32(pred_desc, PREDDESC, DATA); uint64_t *d = vd; intptr_t i; diff --git a/target/arm/tlb_helper.c b/target/arm/tlb_helper.c index b35dc8a..df85079 100644 --- a/target/arm/tlb_helper.c +++ b/target/arm/tlb_helper.c @@ -63,6 +63,9 @@ static void QEMU_NORETURN arm_deliver_fault(ARMCPU *cpu, vaddr addr, if (fi->stage2) { target_el = 2; env->cp15.hpfar_el2 = extract64(fi->s2addr, 12, 47) << 4; + if (arm_is_secure_below_el3(env) && fi->s1ns) { + env->cp15.hpfar_el2 |= HPFAR_NS; + } } same_el = (arm_current_el(env) == target_el); diff --git a/target/arm/translate-a64.c b/target/arm/translate-a64.c index ef63edf..ffc060e 100644 --- a/target/arm/translate-a64.c +++ b/target/arm/translate-a64.c @@ -118,6 +118,10 @@ static int get_a64_user_mem_index(DisasContext *s) case ARMMMUIdx_SE10_1_PAN: useridx = ARMMMUIdx_SE10_0; break; + case ARMMMUIdx_SE20_2: + case ARMMMUIdx_SE20_2_PAN: + useridx = ARMMMUIdx_SE20_0; + break; default: g_assert_not_reached(); } diff --git a/target/arm/translate-sve.c b/target/arm/translate-sve.c index 0c3a6d2..27402af 100644 --- a/target/arm/translate-sve.c +++ b/target/arm/translate-sve.c @@ -1494,10 +1494,10 @@ static bool do_pfirst_pnext(DisasContext *s, arg_rr_esz *a, TCGv_ptr t_pd = tcg_temp_new_ptr(); TCGv_ptr t_pg = tcg_temp_new_ptr(); TCGv_i32 t; - unsigned desc; + unsigned desc = 0; - desc = DIV_ROUND_UP(pred_full_reg_size(s), 8); - desc = deposit32(desc, SIMD_DATA_SHIFT, 2, a->esz); + desc = FIELD_DP32(desc, PREDDESC, OPRSZ, pred_full_reg_size(s)); + desc = FIELD_DP32(desc, PREDDESC, ESZ, a->esz); tcg_gen_addi_ptr(t_pd, cpu_env, pred_full_reg_offset(s, a->rd)); tcg_gen_addi_ptr(t_pg, cpu_env, pred_full_reg_offset(s, a->rn)); @@ -2110,19 +2110,15 @@ static bool do_perm_pred3(DisasContext *s, arg_rrr_esz *a, bool high_odd, unsigned vsz = pred_full_reg_size(s); - /* Predicate sizes may be smaller and cannot use simd_desc. - We cannot round up, as we do elsewhere, because we need - the exact size for ZIP2 and REV. We retain the style for - the other helpers for consistency. */ TCGv_ptr t_d = tcg_temp_new_ptr(); TCGv_ptr t_n = tcg_temp_new_ptr(); TCGv_ptr t_m = tcg_temp_new_ptr(); TCGv_i32 t_desc; - int desc; + uint32_t desc = 0; - desc = vsz - 2; - desc = deposit32(desc, SIMD_DATA_SHIFT, 2, a->esz); - desc = deposit32(desc, SIMD_DATA_SHIFT + 2, 2, high_odd); + desc = FIELD_DP32(desc, PREDDESC, OPRSZ, vsz); + desc = FIELD_DP32(desc, PREDDESC, ESZ, a->esz); + desc = FIELD_DP32(desc, PREDDESC, DATA, high_odd); tcg_gen_addi_ptr(t_d, cpu_env, pred_full_reg_offset(s, a->rd)); tcg_gen_addi_ptr(t_n, cpu_env, pred_full_reg_offset(s, a->rn)); @@ -2149,19 +2145,14 @@ static bool do_perm_pred2(DisasContext *s, arg_rr_esz *a, bool high_odd, TCGv_ptr t_d = tcg_temp_new_ptr(); TCGv_ptr t_n = tcg_temp_new_ptr(); TCGv_i32 t_desc; - int desc; + uint32_t desc = 0; tcg_gen_addi_ptr(t_d, cpu_env, pred_full_reg_offset(s, a->rd)); tcg_gen_addi_ptr(t_n, cpu_env, pred_full_reg_offset(s, a->rn)); - /* Predicate sizes may be smaller and cannot use simd_desc. - We cannot round up, as we do elsewhere, because we need - the exact size for ZIP2 and REV. We retain the style for - the other helpers for consistency. */ - - desc = vsz - 2; - desc = deposit32(desc, SIMD_DATA_SHIFT, 2, a->esz); - desc = deposit32(desc, SIMD_DATA_SHIFT + 2, 2, high_odd); + desc = FIELD_DP32(desc, PREDDESC, OPRSZ, vsz); + desc = FIELD_DP32(desc, PREDDESC, ESZ, a->esz); + desc = FIELD_DP32(desc, PREDDESC, DATA, high_odd); t_desc = tcg_const_i32(desc); fn(t_d, t_n, t_desc); diff --git a/target/arm/translate.c b/target/arm/translate.c index 528b93d..1653cca 100644 --- a/target/arm/translate.c +++ b/target/arm/translate.c @@ -1094,6 +1094,22 @@ static void unallocated_encoding(DisasContext *s) default_exception_el(s)); } +static void gen_exception_el(DisasContext *s, int excp, uint32_t syn, + TCGv_i32 tcg_el) +{ + TCGv_i32 tcg_excp; + TCGv_i32 tcg_syn; + + gen_set_condexec(s); + gen_set_pc_im(s, s->pc_curr); + tcg_excp = tcg_const_i32(excp); + tcg_syn = tcg_const_i32(syn); + gen_helper_exception_with_syndrome(cpu_env, tcg_excp, tcg_syn, tcg_el); + tcg_temp_free_i32(tcg_syn); + tcg_temp_free_i32(tcg_excp); + s->base.is_jmp = DISAS_NORETURN; +} + /* Force a TB lookup after an instruction that changes the CPU state. */ static inline void gen_lookup_tb(DisasContext *s) { @@ -2816,10 +2832,24 @@ static bool msr_banked_access_decode(DisasContext *s, int r, int sysm, int rn, } if (s->current_el == 1) { /* If we're in Secure EL1 (which implies that EL3 is AArch64) - * then accesses to Mon registers trap to EL3 + * then accesses to Mon registers trap to Secure EL2, if it exists, + * otherwise EL3. */ - exc_target = 3; - goto undef; + TCGv_i32 tcg_el; + + if (arm_dc_feature(s, ARM_FEATURE_AARCH64) && + dc_isar_feature(aa64_sel2, s)) { + /* Target EL is EL<3 minus SCR_EL3.EEL2> */ + tcg_el = load_cpu_field(cp15.scr_el3); + tcg_gen_sextract_i32(tcg_el, tcg_el, ctz32(SCR_EEL2), 1); + tcg_gen_addi_i32(tcg_el, tcg_el, 3); + } else { + tcg_el = tcg_const_i32(3); + } + + gen_exception_el(s, EXCP_UDEF, syn_uncategorized(), tcg_el); + tcg_temp_free_i32(tcg_el); + return false; } break; case ARM_CPU_MODE_HYP: diff --git a/tests/qtest/arm-cpu-features.c b/tests/qtest/arm-cpu-features.c index bc681a9..8252b85 100644 --- a/tests/qtest/arm-cpu-features.c +++ b/tests/qtest/arm-cpu-features.c @@ -427,6 +427,18 @@ static void sve_tests_sve_off_kvm(const void *data) qtest_quit(qts); } +static void pauth_tests_default(QTestState *qts, const char *cpu_type) +{ + assert_has_feature_enabled(qts, cpu_type, "pauth"); + assert_has_feature_disabled(qts, cpu_type, "pauth-impdef"); + assert_set_feature(qts, cpu_type, "pauth", false); + assert_set_feature(qts, cpu_type, "pauth", true); + assert_set_feature(qts, cpu_type, "pauth-impdef", true); + assert_set_feature(qts, cpu_type, "pauth-impdef", false); + assert_error(qts, cpu_type, "cannot enable pauth-impdef without pauth", + "{ 'pauth': false, 'pauth-impdef': true }"); +} + static void test_query_cpu_model_expansion(const void *data) { QTestState *qts; @@ -462,6 +474,7 @@ static void test_query_cpu_model_expansion(const void *data) assert_has_feature_enabled(qts, "cortex-a57", "aarch64"); sve_tests_default(qts, "max"); + pauth_tests_default(qts, "max"); /* Test that features that depend on KVM generate errors without. */ assert_error(qts, "max", diff --git a/tests/qtest/npcm7xx_adc-test.c b/tests/qtest/npcm7xx_adc-test.c index f029706..5ce8ce1 100644 --- a/tests/qtest/npcm7xx_adc-test.c +++ b/tests/qtest/npcm7xx_adc-test.c @@ -129,6 +129,7 @@ static void adc_qom_set(QTestState *qts, const ADC *adc, path, name, value); /* The qom set message returns successfully. */ g_assert_true(qdict_haskey(response, "return")); + qobject_unref(response); } static void adc_write_input(QTestState *qts, const ADC *adc, |