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2021-05-25target/arm: Implement SVE2 integer multiply-add longRichard Henderson4-0/+133
Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20210525010358.152808-37-richard.henderson@linaro.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2021-05-25target/arm: Implement SVE2 saturating multiply-add highRichard Henderson4-6/+195
SVE2 has two additional sizes of the operation and unlike NEON, there is no saturation flag. Create new entry points for SVE2 that do not set QC. Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20210525010358.152808-36-richard.henderson@linaro.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2021-05-25target/arm: Implement SVE2 saturating multiply-add longRichard Henderson4-0/+112
Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20210525010358.152808-35-richard.henderson@linaro.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2021-05-25target/arm: Implement SVE2 MATCH, NMATCHStephen Long4-0/+101
Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Stephen Long <steplong@quicinc.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20210525010358.152808-34-richard.henderson@linaro.org Message-Id: <20200415145915.2859-1-steplong@quicinc.com> [rth: Expanded comment for do_match2] Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2021-05-25target/arm: Implement SVE2 bitwise ternary operationsRichard Henderson4-0/+281
Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20210525010358.152808-33-richard.henderson@linaro.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2021-05-25target/arm: Implement SVE2 WHILERW, WHILEWRRichard Henderson2-0/+70
Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20210525010358.152808-32-richard.henderson@linaro.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2021-05-25target/arm: Implement SVE2 WHILEGT, WHILEGE, WHILEHI, WHILEHSRichard Henderson4-17/+82
Rename the existing sve_while (less-than) helper to sve_whilel to make room for a new sve_whileg helper for greater-than. Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20210525010358.152808-31-richard.henderson@linaro.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2021-05-25target/arm: Implement SVE2 SQSHRN, SQRSHRNRichard Henderson4-0/+149
This completes the section "SVE2 bitwise shift right narrow". Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20210525010358.152808-30-richard.henderson@linaro.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2021-05-25target/arm: Implement SVE2 UQSHRN, UQRSHRNRichard Henderson4-0/+137
Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20210525010358.152808-29-richard.henderson@linaro.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2021-05-25target/arm: Implement SVE2 SQSHRUN, SQRSHRUNRichard Henderson4-0/+153
Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20210525010358.152808-28-richard.henderson@linaro.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2021-05-25target/arm: Implement SVE2 SHRN, RSHRNRichard Henderson4-2/+236
Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20210525010358.152808-27-richard.henderson@linaro.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2021-05-25target/arm: Implement SVE2 floating-point pairwiseStephen Long4-0/+114
Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Stephen Long <steplong@quicinc.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20210525010358.152808-26-richard.henderson@linaro.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2021-05-25target/arm: Implement SVE2 saturating extract narrowRichard Henderson4-0/+330
Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20210525010358.152808-25-richard.henderson@linaro.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2021-05-25target/arm: Implement SVE2 integer absolute difference and accumulateRichard Henderson2-0/+27
Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20210525010358.152808-24-richard.henderson@linaro.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2021-05-25target/arm: Implement SVE2 bitwise shift and insertRichard Henderson2-0/+15
Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20210525010358.152808-23-richard.henderson@linaro.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2021-05-25target/arm: Implement SVE2 bitwise shift right and accumulateRichard Henderson2-0/+42
Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20210525010358.152808-22-richard.henderson@linaro.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2021-05-25target/arm: Implement SVE2 integer add/subtract long with carryRichard Henderson4-0/+66
Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20210525010358.152808-21-richard.henderson@linaro.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2021-05-25target/arm: Implement SVE2 integer absolute difference and accumulate longRichard Henderson4-0/+104
Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20210525010358.152808-20-richard.henderson@linaro.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2021-05-25target/arm: Implement SVE2 complex integer addRichard Henderson4-0/+92
Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20210525010358.152808-19-richard.henderson@linaro.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2021-05-25target/arm: Implement SVE2 bitwise permuteRichard Henderson5-0/+135
Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20210525010358.152808-18-richard.henderson@linaro.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2021-05-25target/arm: Implement SVE2 bitwise exclusive-or interleavedRichard Henderson4-0/+49
Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20210525010358.152808-17-richard.henderson@linaro.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2021-05-25target/arm: Implement SVE2 bitwise shift left longRichard Henderson4-0/+197
Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20210525010358.152808-16-richard.henderson@linaro.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2021-05-25target/arm: Implement SVE2 PMULLB, PMULLTRichard Henderson5-0/+59
Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20210525010358.152808-15-richard.henderson@linaro.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2021-05-25target/arm: Implement SVE2 integer multiply longRichard Henderson4-0/+64
Exclude PMULL from this category for the moment. Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20210525010358.152808-14-richard.henderson@linaro.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2021-05-25target/arm: Implement SVE2 integer add/subtract wideRichard Henderson4-0/+78
Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20210525010358.152808-13-richard.henderson@linaro.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2021-05-25target/arm: Implement SVE2 integer add/subtract interleaved longRichard Henderson2-0/+10
Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20210525010358.152808-12-richard.henderson@linaro.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2021-05-25target/arm: Implement SVE2 integer add/subtract longRichard Henderson4-0/+132
Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20210525010358.152808-11-richard.henderson@linaro.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2021-05-25target/arm: Implement SVE2 saturating add/subtract (predicated)Richard Henderson4-56/+210
Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20210525010358.152808-10-richard.henderson@linaro.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2021-05-25target/arm: Implement SVE2 integer pairwise arithmeticRichard Henderson4-0/+135
Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20210525010358.152808-9-richard.henderson@linaro.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2021-05-25target/arm: Implement SVE2 integer halving add/subtract (predicated)Richard Henderson4-0/+112
Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20210525010358.152808-8-richard.henderson@linaro.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2021-05-25target/arm: Implement SVE2 saturating/rounding bitwise shift left (predicated)Richard Henderson4-0/+176
Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20210525010358.152808-7-richard.henderson@linaro.org Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2021-05-25target/arm: Split out saturating/rounding shifts from neonRichard Henderson2-430/+227
Split these operations out into a header that can be shared between neon and sve. The "sat" pointer acts both as a boolean for control of saturating behavior and controls the difference in behavior between neon and sve -- QC bit or no QC bit. Widen the shift operand in the new helpers, as the SVE2 insns treat the whole input element as significant. For the neon uses, truncate the shift to int8_t while passing the parameter. Implement right-shift rounding as tmp = src >> (shift - 1); dst = (tmp >> 1) + (tmp & 1); This is the same number of instructions as the current tmp = 1 << (shift - 1); dst = (src + tmp) >> shift; without any possibility of intermediate overflow. Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20210525010358.152808-6-richard.henderson@linaro.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2021-05-25target/arm: Implement SVE2 integer unary operations (predicated)Richard Henderson4-0/+88
Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20210525010358.152808-5-richard.henderson@linaro.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2021-05-25target/arm: Implement SVE2 integer pairwise add and accumulate longRichard Henderson4-0/+102
Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20210525010358.152808-4-richard.henderson@linaro.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2021-05-25target/arm: Implement SVE2 Integer Multiply - UnpredicatedRichard Henderson4-0/+166
For MUL, we can rely on generic support. For SMULH and UMULH, create some trivial helpers. For PMUL, back in a21bb78e5817, we organized helper_gvec_pmul_b in preparation for this use. Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20210525010358.152808-3-richard.henderson@linaro.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2021-05-25target/arm: Add ID_AA64ZFR0 fields and isar_feature_aa64_sve2Richard Henderson3-8/+32
Will be used for SVE2 isa subset enablement. Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20210525010358.152808-2-richard.henderson@linaro.org Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2021-05-25disas/libvixl: Protect C system header for C++ compilerPhilippe Mathieu-Daudé6-11/+15
When selecting an ARM target on Debian unstable, we get: Compiling C++ object libcommon.fa.p/disas_libvixl_vixl_utils.cc.o FAILED: libcommon.fa.p/disas_libvixl_vixl_utils.cc.o c++ -Ilibcommon.fa.p -I. -I.. [...] -o libcommon.fa.p/disas_libvixl_vixl_utils.cc.o -c ../disas/libvixl/vixl/utils.cc In file included from /home/philmd/qemu/disas/libvixl/vixl/utils.h:30, from ../disas/libvixl/vixl/utils.cc:27: /usr/include/string.h:36:43: error: missing binary operator before token "(" 36 | #if defined __cplusplus && (__GNUC_PREREQ (4, 4) \ | ^ /usr/include/string.h:53:62: error: missing binary operator before token "(" 53 | #if defined __USE_MISC || defined __USE_XOPEN || __GLIBC_USE (ISOC2X) | ^ /usr/include/string.h:165:21: error: missing binary operator before token "(" 165 | || __GLIBC_USE (LIB_EXT2) || __GLIBC_USE (ISOC2X)) | ^ /usr/include/string.h:174:43: error: missing binary operator before token "(" 174 | #if defined __USE_XOPEN2K8 || __GLIBC_USE (LIB_EXT2) || __GLIBC_USE (ISOC2X) | ^ /usr/include/string.h:492:19: error: missing binary operator before token "(" 492 | #if __GNUC_PREREQ (3,4) | ^ Relevant information from the host: $ lsb_release -d Description: Debian GNU/Linux 11 (bullseye) $ gcc --version gcc (Debian 10.2.1-6) 10.2.1 20210110 $ dpkg -S /usr/include/string.h libc6-dev: /usr/include/string.h $ apt-cache show libc6-dev Package: libc6-dev Version: 2.31-11 Partially cherry-pick vixl commit 78973f258039f6e96 [*]: Refactor VIXL to use `extern` block when including C header that do not have a C++ counterpart. which is similar to commit 875df03b221 ('osdep: protect qemu/osdep.h with extern "C"'). [*] https://git.linaro.org/arm/vixl.git/commit/?id=78973f258039f6e96 Buglink: https://bugs.launchpad.net/qemu/+bug/1914870 Suggested-by: Thomas Huth <thuth@redhat.com> Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Thomas Huth <thuth@redhat.com> Message-id: 20210516171023.510778-1-f4bug@amsat.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2021-05-25target/arm: set ID_AA64ISAR0.TLB to 2 for max AARCH64 CPU typeRebecca Cran1-0/+1
Indicate support for FEAT_TLBIOS and FEAT_TLBIRANGE by setting ID_AA64ISAR0.TLB to 2 for the max AARCH64 CPU type. Signed-off-by: Rebecca Cran <rebecca@nuviainc.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20210512182337.18563-4-rebecca@nuviainc.com Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2021-05-25target/arm: Add support for FEAT_TLBIOSRebecca Cran2-0/+48
ARMv8.4 adds the mandatory FEAT_TLBIOS. It provides TLBI maintenance instructions that extend to the Outer Shareable domain. Signed-off-by: Rebecca Cran <rebecca@nuviainc.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20210512182337.18563-3-rebecca@nuviainc.com Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2021-05-25target/arm: Add support for FEAT_TLBIRANGERebecca Cran2-0/+286
ARMv8.4 adds the mandatory FEAT_TLBIRANGE. It provides TLBI maintenance instructions that apply to a range of input addresses. Signed-off-by: Rebecca Cran <rebecca@nuviainc.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20210512182337.18563-2-rebecca@nuviainc.com Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2021-05-25accel/tlb: Rename tlb_flush_[page_bits > range]_by_mmuidx_async_[2 > 1]Richard Henderson1-6/+6
Rename to match tlb_flush_range_locked. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Message-id: 20210509151618.2331764-9-f4bug@amsat.org Message-Id: <20210508201640.1045808-1-richard.henderson@linaro.org> [PMD: Split from bigger patch] Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2021-05-25accel/tcg: Rename tlb_flush_page_bits -> range]_by_mmuidx_async_0Richard Henderson1-6/+5
Rename to match tlb_flush_range_locked. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Message-id: 20210509151618.2331764-8-f4bug@amsat.org Message-Id: <20210508201640.1045808-1-richard.henderson@linaro.org> [PMD: Split from bigger patch] Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2021-05-25accel/tlb: Add tlb_flush_range_by_mmuidx_all_cpus_synced()Richard Henderson2-7/+32
Forward tlb_flush_page_bits_by_mmuidx_all_cpus_synced to tlb_flush_range_by_mmuidx_all_cpus_synced passing TARGET_PAGE_SIZE. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Message-id: 20210509151618.2331764-7-f4bug@amsat.org Message-Id: <20210508201640.1045808-1-richard.henderson@linaro.org> [PMD: Split from bigger patch] Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2021-05-25accel/tcg: Add tlb_flush_range_by_mmuidx_all_cpus()Richard Henderson2-7/+30
Forward tlb_flush_page_bits_by_mmuidx_all_cpus to tlb_flush_range_by_mmuidx_all_cpus passing TARGET_PAGE_SIZE. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Message-id: 20210509151618.2331764-6-f4bug@amsat.org Message-Id: <20210508201640.1045808-1-richard.henderson@linaro.org> [PMD: Split from bigger patch] Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2021-05-25accel/tcg: Add tlb_flush_range_by_mmuidx()Richard Henderson2-5/+34
Forward tlb_flush_page_bits_by_mmuidx to tlb_flush_range_by_mmuidx passing TARGET_PAGE_SIZE. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Message-id: 20210509151618.2331764-5-f4bug@amsat.org Message-Id: <20210508201640.1045808-1-richard.henderson@linaro.org> [PMD: Split from bigger patch] Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2021-05-25accel/tcg: Remove {encode,decode}_pbm_to_runonRichard Henderson1-66/+20
We will not be able to fit address + length into a 64-bit packet. Drop this optimization before re-organizing this code. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Message-id: 20210509151618.2331764-10-f4bug@amsat.org Message-Id: <20210508201640.1045808-1-richard.henderson@linaro.org> [PMD: Split from bigger patch] Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> [PMM: Moved patch earlier in the series] Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2021-05-25accel/tlb: Rename TLBFlushPageBitsByMMUIdxData -> TLBFlushRangeDataRichard Henderson1-12/+12
Rename the structure to match the rename of tlb_flush_range_locked. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Message-id: 20210509151618.2331764-4-f4bug@amsat.org Message-Id: <20210508201640.1045808-1-richard.henderson@linaro.org> [PMD: Split from bigger patch] Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2021-05-25accel/tcg: Pass length argument to tlb_flush_range_locked()Richard Henderson1-15/+33
Rename tlb_flush_page_bits_locked() -> tlb_flush_range_locked(), and have callers pass a length argument (currently TARGET_PAGE_SIZE) via the TLBFlushPageBitsByMMUIdxData structure. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Message-id: 20210509151618.2331764-3-f4bug@amsat.org Message-Id: <20210508201640.1045808-1-richard.henderson@linaro.org> [PMD: Split from bigger patch] Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2021-05-25accel/tcg: Replace g_new() + memcpy() by g_memdup()Richard Henderson1-11/+4
Using g_memdup is a bit more compact than g_new + memcpy. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Message-id: 20210509151618.2331764-2-f4bug@amsat.org Message-Id: <20210508201640.1045808-1-richard.henderson@linaro.org> [PMD: Split from bigger patch] Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2021-05-25target/arm: Use correct SP in M-profile exception returnPeter Maydell1-1/+2
When an M-profile CPU is restoring registers from the stack on exception return, the stack pointer to use is determined based on bits in the magic exception return type value. We were not getting this logic entirely correct. Whether we use one of the Secure stack pointers or one of the Non-Secure stack pointers depends on the EXCRET.S bit. However, whether we use the MSP or the PSP then depends on the SPSEL bit in either the CONTROL_S or CONTROL_NS register. We were incorrectly selecting MSP vs PSP based on the EXCRET.SPSEL bit. (In the pseudocode this is in the PopStack() function, which calls LookUpSp_with_security_mode() which in turn looks at the relevant CONTROL.SPSEL bit.) The buggy behaviour wasn't noticeable in most cases, because we write EXCRET.SPSEL to the CONTROL.SPSEL bit for the S/NS register selected by EXCRET.ES, so we only do the wrong thing when EXCRET.S and EXCRET.ES are different. This will happen when secure code takes a secure exception, which then tail-chains to a non-secure exception which finally returns to the original secure code. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20210520130905.2049-1-peter.maydell@linaro.org
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