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2020-12-17hw/riscv: Expand the is 32-bit check to support more CPUsAlistair Francis1-1/+11
Currently the riscv_is_32_bit() function only supports the generic rv32 CPUs. Extend the function to support the SiFive and LowRISC CPUs as well. Signed-off-by: Alistair Francis <alistair.francis@wdc.com> Reviewed-by: Palmer Dabbelt <palmerdabbelt@google.com> Acked-by: Palmer Dabbelt <palmerdabbelt@google.com> Message-id: 9a13764115ba78688ba61b56526c6de65fc3ef42.1608142916.git.alistair.francis@wdc.com
2020-12-17intc/ibex_plic: Clear interrupts that occur during claim processAlistair Francis1-3/+10
Previously if an interrupt occured during the claim process (after the interrupt is claimed but before it's completed) it would never be cleared. This patch ensures that we also clear the hidden_pending bits as well. Signed-off-by: Alistair Francis <alistair.francis@wdc.com> Tested-by: Jackie Ke <jackieke724@hotmail.com> Message-id: 4e9786084a86f220689123cc8a7837af8fa071cf.1607100423.git.alistair.francis@wdc.com
2020-12-17target/riscv: Fix definition of MSTATUS_TW and MSTATUS_TSRAlex Richardson1-2/+2
The TW and TSR fields should be bits 21 and 22 and not 30/29. This was found while comparing QEMU behaviour against the sail formal model (https://github.com/rems-project/sail-riscv/). Signed-off-by: Alex Richardson <Alexander.Richardson@cl.cam.ac.uk> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Message-id: 20201130170117.71281-1-Alexander.Richardson@cl.cam.ac.uk Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2020-12-17target/riscv: Fix the bug of HLVX/HLV/HSVYifei Jiang1-1/+2
We found that the hypervisor virtual-machine load and store instructions, included HLVX/HLV/HSV, couldn't access guest userspace memory. In the riscv-privileged spec, HLVX/HLV/HSV is defined as follow: "As usual when V=1, two-stage address translation is applied, and the HS-level sstatus.SUM is ignored." But get_physical_address() doesn't ignore sstatus.SUM, when HLVX/HLV/HSV accesses guest userspace memory. So this patch fixes it. Signed-off-by: Yifei Jiang <jiangyifei@huawei.com> Signed-off-by: Yipeng Yin <yinyipeng1@huawei.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Message-id: 20201130012810.899-1-jiangyifei@huawei.com Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2020-12-17hw/core/register.c: Don't use '#' flag of printf formatXinhao Zhang1-8/+8
Fix code style. Don't use '#' flag of printf format ('%#') in format strings, use '0x' prefix instead Signed-off-by: Xinhao Zhang <zhangxinhao1@huawei.com> Signed-off-by: Kai Deng <dengkai1@huawei.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Message-id: 20201116140148.2850128-1-zhangxinhao1@huawei.com Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2020-12-17hw/riscv: microchip_pfsoc: add QSPI NOR flashVitaly Wool2-0/+24
Add QSPI NOR flash definition for Microchip PolarFire SoC. Signed-off-by: Vitaly Wool <vitaly.wool@konsulko.com> Acked-by: Alistair Francis <alistair.francis@wdc.com> Reviewed-by: Bin Meng <bin.meng@windriver.com> Message-id: 20201112074950.33283-1-vitaly.wool@konsulko.com Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2020-12-17hw/riscv: sifive_u: Add UART1 DT node in the generated DTBAnup Patel1-0/+15
The sifive_u machine emulates two UARTs but we have only UART0 DT node in the generated DTB so this patch adds UART1 DT node in the generated DTB. Signed-off-by: Anup Patel <anup.patel@wdc.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Message-id: 20201111094725.3768755-1-anup.patel@wdc.com Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2020-12-17Merge remote-tracking branch ↵Peter Maydell63-766/+956
'remotes/ehabkost-gl/tags/x86-next-pull-request' into staging x86 queue, 2020-12-17 Features: * AVX512_FP16 feature (Cathy Zhang) Cleanups: * accel code cleanup (Claudio Fontana) * hyperv initialization cleanup (Vitaly Kuznetsov) # gpg: Signature made Thu 17 Dec 2020 18:44:45 GMT # gpg: using RSA key 5A322FD5ABC4D3DBACCFD1AA2807936F984DC5A6 # gpg: issuer "ehabkost@redhat.com" # gpg: Good signature from "Eduardo Habkost <ehabkost@redhat.com>" [full] # Primary key fingerprint: 5A32 2FD5 ABC4 D3DB ACCF D1AA 2807 936F 984D C5A6 * remotes/ehabkost-gl/tags/x86-next-pull-request: cpu: Remove unnecessary noop methods tcg: Make CPUClass.debug_excp_handler optional tcg: make CPUClass.cpu_exec_* optional tcg: cpu_exec_{enter,exit} helpers i386: tcg: remove inline from cpu_load_eflags i386: move TCG cpu class initialization to tcg/ x86/cpu: Add AVX512_FP16 cpu feature i386: move hyperv_limits initialization to x86_cpu_realizefn() i386: move hyperv_version_id initialization to x86_cpu_realizefn() i386: move hyperv_interface_id initialization to x86_cpu_realizefn() i386: move hyperv_vendor_id initialization to x86_cpu_realizefn() i386: move cpu dump out of helper.c into cpu-dump.c i386: move TCG accel files into tcg/ i386: hvf: remove stale MAINTAINERS entry for old hvf stubs i386: move hax accel files into hax/ i386: move whpx accel files into whpx/ i386: move kvm accel files into kvm/ Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-12-16cpu: Remove unnecessary noop methodsEduardo Habkost1-13/+0
In the previous commits we made cpu_exec_* and debug_excp_handler optional, so we can now remove these no-op handlers. Signed-off-by: Eduardo Habkost <ehabkost@redhat.com> Signed-off-by: Claudio Fontana <cfontana@suse.de> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Message-Id: <20201212155530.23098-13-cfontana@suse.de> Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2020-12-16tcg: Make CPUClass.debug_excp_handler optionalEduardo Habkost1-1/+3
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com> Signed-off-by: Claudio Fontana <cfontana@suse.de> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Message-Id: <20201212155530.23098-12-cfontana@suse.de> Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2020-12-16tcg: make CPUClass.cpu_exec_* optionalEduardo Habkost1-3/+8
This will let us simplify the code that initializes CPU class methods, when we move cpu_exec_*() to a separate struct. Signed-off-by: Eduardo Habkost <ehabkost@redhat.com> Signed-off-by: Claudio Fontana <cfontana@suse.de> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Message-Id: <20201212155530.23098-11-cfontana@suse.de> Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2020-12-16tcg: cpu_exec_{enter,exit} helpersEduardo Habkost1-5/+18
Move invocation of CPUClass.cpu_exec_*() to separate helpers, to make it easier to refactor that code later. Signed-off-by: Eduardo Habkost <ehabkost@redhat.com> Signed-off-by: Claudio Fontana <cfontana@suse.de> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20201212155530.23098-10-cfontana@suse.de> Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2020-12-16i386: tcg: remove inline from cpu_load_eflagsClaudio Fontana2-13/+15
make it a regular function. Suggested-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Claudio Fontana <cfontana@suse.de> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20201212155530.23098-9-cfontana@suse.de> Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2020-12-16i386: move TCG cpu class initialization to tcg/Claudio Fontana19-148/+238
to do this, we need to take code out of cpu.c and helper.c, and also move some prototypes from cpu.h, for code that is needed in tcg/xxx_helper.c, and which in turn is part of the callbacks registered by the class initialization. Therefore, do some shuffling of the parts of cpu.h that are only relevant for tcg/, and put them in tcg/helper-tcg.h For FT0 and similar macros, put them in tcg/fpu-helper.c since they are used only there. Signed-off-by: Claudio Fontana <cfontana@suse.de> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20201212155530.23098-8-cfontana@suse.de> Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2020-12-16x86/cpu: Add AVX512_FP16 cpu featureCathy Zhang2-1/+3
AVX512 Half-precision floating point (FP16) has better performance compared to FP32 if the presicion or magnitude requirements are met. It's defined as CPUID.(EAX=7,ECX=0):EDX[bit 23]. Refer to https://software.intel.com/content/www/us/en/develop/download/\ intel-architecture-instruction-set-extensions-programming-reference.html Signed-off-by: Cathy Zhang <cathy.zhang@intel.com> Message-Id: <20201216224002.32677-1-cathy.zhang@intel.com> Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2020-12-16i386: move hyperv_limits initialization to x86_cpu_realizefn()Vitaly Kuznetsov3-1/+18
As a preparation to expanding Hyper-V CPU features early, move hyperv_limits initialization to x86_cpu_realizefn(). Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com> Message-Id: <20201119103221.1665171-5-vkuznets@redhat.com> Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2020-12-16i386: move hyperv_version_id initialization to x86_cpu_realizefn()Vitaly Kuznetsov3-2/+17
As a preparation to expanding Hyper-V CPU features early, move hyperv_version_id initialization to x86_cpu_realizefn(). Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com> Message-Id: <20201119103221.1665171-4-vkuznets@redhat.com> Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2020-12-16i386: move hyperv_interface_id initialization to x86_cpu_realizefn()Vitaly Kuznetsov3-6/+19
As a preparation to expanding Hyper-V CPU features early, move hyperv_interface_id initialization to x86_cpu_realizefn(). Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com> Message-Id: <20201119103221.1665171-3-vkuznets@redhat.com> Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2020-12-16i386: move hyperv_vendor_id initialization to x86_cpu_realizefn()Vitaly Kuznetsov3-17/+34
As a preparation to expanding Hyper-V CPU features early, move hyperv_vendor_id initialization to x86_cpu_realizefn(). Introduce x86_cpu_hyperv_realize() to not not pollute x86_cpu_realizefn() itself. Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com> Message-Id: <20201119103221.1665171-2-vkuznets@redhat.com> Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2020-12-16i386: move cpu dump out of helper.c into cpu-dump.cClaudio Fontana4-514/+539
Signed-off-by: Claudio Fontana <cfontana@suse.de> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20201212155530.23098-7-cfontana@suse.de> Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2020-12-16i386: move TCG accel files into tcg/Claudio Fontana16-13/+14
Signed-off-by: Claudio Fontana <cfontana@suse.de> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> [claudio: moved cc_helper_template.h to tcg/ too] Signed-off-by: Claudio Fontana <cfontana@suse.de> Message-Id: <20201212155530.23098-6-cfontana@suse.de> Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2020-12-16i386: hvf: remove stale MAINTAINERS entry for old hvf stubsClaudio Fontana1-1/+0
Signed-off-by: Claudio Fontana <cfontana@suse.de> Reviewed-by: Roman Bolshakov <r.bolshakov@yadro.com> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Message-Id: <20201212155530.23098-5-cfontana@suse.de> Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2020-12-16i386: move hax accel files into hax/Claudio Fontana13-11/+12
Signed-off-by: Claudio Fontana <cfontana@suse.de> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20201212155530.23098-4-cfontana@suse.de> Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2020-12-16i386: move whpx accel files into whpx/Claudio Fontana8-10/+7
Signed-off-by: Claudio Fontana <cfontana@suse.de> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20201212155530.23098-3-cfontana@suse.de> Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2020-12-16i386: move kvm accel files into kvm/Claudio Fontana25-22/+26
Signed-off-by: Claudio Fontana <cfontana@suse.de> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20201212155530.23098-2-cfontana@suse.de> Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2020-12-15Merge remote-tracking branch 'remotes/bonzini-gitlab/tags/for-upstream' into ↵Peter Maydell79-1595/+1832
staging * New -action option and set-action QMP command (Alejandro) * More vl.c cleanup (myself with help from Daniel and Igor) * Remove deprecated options (Philippe, Thomas) * Dirty bitmap fix (Zenghui) * icount caching speedup (Pavel) * SCSI race fix (Maxim) * Remove pre-GCC 4.8 code (Marc-André) # gpg: Signature made Tue 15 Dec 2020 17:53:24 GMT # gpg: using RSA key F13338574B662389866C7682BFFBD25F78C7AE83 # gpg: issuer "pbonzini@redhat.com" # gpg: Good signature from "Paolo Bonzini <bonzini@gnu.org>" [full] # gpg: aka "Paolo Bonzini <pbonzini@redhat.com>" [full] # Primary key fingerprint: 46F5 9FBD 57D6 12E7 BFD4 E2F7 7E15 100C CD36 69B1 # Subkey fingerprint: F133 3857 4B66 2389 866C 7682 BFFB D25F 78C7 AE83 * remotes/bonzini-gitlab/tags/for-upstream: (45 commits) build: -no-pie is no functional linker flag scripts/git.orderfile: Keep files with .inc extension sorted compiler.h: remove QEMU_GNUC_PREREQ linux-user: remove GNUC check compiler: remove GNUC check xen: remove GNUC check poison: remove GNUC check compiler.h: explicit case for Clang printf attribute virtiofsd: replace _Static_assert with QEMU_BUILD_BUG_ON tests: remove GCC < 4 fallbacks qemu-plugin.h: remove GCC < 4 compiler.h: remove GCC < 3 __builtin_expect fallback accel/tcg: Remove special case for GCC < 4.6 qemu/atomic: Drop special case for unsupported compiler hw/core: Restrict 'fw-path-provider.c' to system mode emulation docs: set CONFDIR when running sphinx vl: rename local variable in configure_accelerators qemu-option: pass QemuOptsList to opts_accepts_any qemu-option: simplify search for end of key kvm: Take into account the unaligned section size when preparing bitmap ... Signed-off-by: Peter Maydell <peter.maydell@linaro.org> # Conflicts: # softmmu/vl.c
2020-12-15build: -no-pie is no functional linker flagChristian Ehrhardt2-4/+0
Recent binutils changes dropping unsupported options [1] caused a build issue in regard to the optionroms. ld -m elf_i386 -T /<<PKGBUILDDIR>>/pc-bios/optionrom//flat.lds -no-pie \ -s -o multiboot.img multiboot.o ld.bfd: Error: unable to disambiguate: -no-pie (did you mean --no-pie ?) This isn't really a regression in ld.bfd, filing the bug upstream revealed that this never worked as a ld flag [2] - in fact it seems we were by accident setting --nmagic). Since it never had the wanted effect this usage of LDFLAGS_NOPIE, should be droppable without any effect. This also is the only use-case of LDFLAGS_NOPIE in .mak, therefore we can also remove it from being added there. [1]: https://sourceware.org/git/?p=binutils-gdb.git;a=commit;h=983d925d [2]: https://sourceware.org/bugzilla/show_bug.cgi?id=27050#c5 Signed-off-by: Christian Ehrhardt <christian.ehrhardt@canonical.com> Message-Id: <20201214150938.1297512-1-christian.ehrhardt@canonical.com> Cc: qemu-stable@nongnu.org Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-12-15scripts/git.orderfile: Keep files with .inc extension sortedPhilippe Mathieu-Daudé1-0/+3
Sort .inc files along with the extension including them. Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Message-Id: <20201213205132.243628-1-f4bug@amsat.org> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-12-15compiler.h: remove QEMU_GNUC_PREREQMarc-André Lureau2-12/+0
When needed, the G_GNUC_CHECK_VERSION() glib macro can be used instead. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Message-Id: <20201210134752.780923-14-marcandre.lureau@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-12-15linux-user: remove GNUC checkMarc-André Lureau1-4/+0
QEMU requires Clang or GCC, that define and support __GNUC__ extensions. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Message-Id: <20201210134752.780923-13-marcandre.lureau@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-12-15compiler: remove GNUC checkMarc-André Lureau1-7/+1
QEMU requires Clang or GCC, that define and support __GNUC__ extensions. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Message-Id: <20201210134752.780923-12-marcandre.lureau@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-12-15xen: remove GNUC checkMarc-André Lureau1-9/+0
QEMU requires Clang or GCC, that define and support __GNUC__ extensions Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Acked-by: Stefano Stabellini <sstabellini@kernel.org> Message-Id: <20201210134752.780923-11-marcandre.lureau@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-12-15poison: remove GNUC checkMarc-André Lureau1-2/+0
QEMU requires Clang or GCC, that define and support __GNUC__ extensions Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Message-Id: <20201210134752.780923-10-marcandre.lureau@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-12-15compiler.h: explicit case for Clang printf attributeMarc-André Lureau1-12/+12
Since commit efc6c07 ("configure: Add a test for the minimum compiler version"), QEMU explicitely depends on GCC >= 4.8, we could thus drop earlier version checks. Except clang advertizes itself as GCC 4.2.1. Since clang doesn't support gnu_printf, make that case explicitely and drop GCC version check. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Message-Id: <20201210134752.780923-8-marcandre.lureau@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-12-15virtiofsd: replace _Static_assert with QEMU_BUILD_BUG_ONMarc-André Lureau1-10/+1
This allows to get rid of a check for older GCC version (which was a bit bogus too since it was falling back on c++ version..) Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Message-Id: <20201210134752.780923-7-marcandre.lureau@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-12-15tests: remove GCC < 4 fallbacksMarc-André Lureau1-5/+3
Since commit efc6c07 ("configure: Add a test for the minimum compiler version"), QEMU explicitely depends on GCC >= 4.8. (clang >= 3.4 advertizes itself as GCC >= 4.2 compatible) Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Acked-by: Alex Bennée <alex.bennee@linaro.org> Message-Id: <20201210134752.780923-6-marcandre.lureau@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-12-15qemu-plugin.h: remove GCC < 4Marc-André Lureau1-7/+2
Since commit efc6c07 ("configure: Add a test for the minimum compiler version"), QEMU explicitely depends on GCC >= 4.8. (clang >= 3.4 advertizes itself as GCC >= 4.2 compatible) Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Acked-by: Alex Bennée <alex.bennee@linaro.org> Message-Id: <20201210134752.780923-5-marcandre.lureau@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-12-15compiler.h: remove GCC < 3 __builtin_expect fallbackMarc-André Lureau1-4/+0
Since commit efc6c07 ("configure: Add a test for the minimum compiler version"), QEMU explicitely depends on GCC >= 4.8. (clang >= 3.4 advertizes itself as GCC >= 4.2 compatible and supports __builtin_expect too) Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Message-Id: <20201210134752.780923-4-marcandre.lureau@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-12-15accel/tcg: Remove special case for GCC < 4.6Philippe Mathieu-Daudé1-1/+1
Since commit efc6c070aca ("configure: Add a test for the minimum compiler version") the minimum compiler version required for GCC is 4.8. We can safely remove the special case for GCC 4.6 introduced in commit 0448f5f8b81 ("cpu-exec: Fix compiler warning (-Werror=clobbered)"). No change for Clang as we don't know. Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com> Message-Id: <20201210134752.780923-3-marcandre.lureau@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-12-15qemu/atomic: Drop special case for unsupported compilerPhilippe Mathieu-Daudé1-17/+0
Since commit efc6c070aca ("configure: Add a test for the minimum compiler version") the minimum compiler version required for GCC is 4.8, which has the GCC BZ#36793 bug fixed. We can safely remove the special case introduced in commit a281ebc11a6 ("virtio: add missing mb() on notification"). With clang 3.4, __ATOMIC_RELAXED is defined, so the chunk to remove (which is x86-specific), isn't reached either. Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com> Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com> Message-Id: <20201210134752.780923-2-marcandre.lureau@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-12-15hw/core: Restrict 'fw-path-provider.c' to system mode emulationPhilippe Mathieu-Daudé1-1/+1
fw-path-provider.c is only consumed by qdev-fw.c, which itself is in softmmu_ss[], so we can restrict fw-path-provider.c to softmmu too. Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com> Message-Id: <20201207220709.4017938-1-philmd@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-12-15docs: set CONFDIR when running sphinxMarc-André Lureau1-1/+1
The default configuration path /etc/qemu can be overriden with configure options, and the generated documentation used to reflect it. Fixes regression introduced in commit f8aa24ea9a82da38370470c6bc0eaa393999edfe ("meson: sphinx-build"). Fixes: https://bugzilla.redhat.com/show_bug.cgi?id=1902537 Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Message-Id: <20201201183704.299697-1-marcandre.lureau@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-12-15vl: rename local variable in configure_acceleratorsPaolo Bonzini1-9/+9
Silly patch extracted from the next one, which is already big enough. Because there are already local variables named "accel", we will name the global vl.c variable for "-M accel" accelerators instead. Rename it already in configure_accelerators to be ready. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-12-15qemu-option: pass QemuOptsList to opts_accepts_anyPaolo Bonzini1-10/+13
A QemuOptsList can be of one of two kinds: either it is pre-validated, or it accepts any key and validation happens somewhere else (typically in a Visitor or against a list of QOM properties). opts_accepts_any returns true if a QemuOpts instance was created from a QemuOptsList of the latter kind, but there is no function to do the check on a QemuOptsList. Since this property comes from the QemuOptsList and almost all callers of opts_accepts_any use opts->list anyway, modify the function to accept QemuOptsList. Reviewed-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-12-15qemu-option: simplify search for end of keyPaolo Bonzini1-22/+13
Use strcspn to find an equal or comma value, and pass the result directly to get_opt_name to avoid another strchr. Reviewed-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-12-15kvm: Take into account the unaligned section size when preparing bitmapZenghui Yu1-2/+5
The kernel KVM_CLEAR_DIRTY_LOG interface has align requirement on both the start and the size of the given range of pages. We have been careful to handle the unaligned cases when performing CLEAR on one slot. But it seems that we forget to take the unaligned *size* case into account when preparing bitmap for the interface, and we may end up clearing dirty status for pages outside of [start, start + size). If the size is unaligned, let's go through the slow path to manipulate a temp bitmap for the interface so that we won't bother with those unaligned bits at the end of bitmap. I don't think this can happen in practice since the upper layer would provide us with the alignment guarantee. I'm not sure if kvm-all could rely on it. And this patch is mainly intended to address correctness of the specific algorithm used inside kvm_log_clear_one_slot(). Signed-off-by: Zenghui Yu <yuzenghui@huawei.com> Message-Id: <20201208114013.875-1-yuzenghui@huawei.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-12-15scsi: fix device removal race vs IO restart callback on resumeMaxim Levitsky1-0/+4
There is (mostly theoretical) race between removal of a scsi device and scsi_dma_restart_bh. It used to be easier to hit this race prior to my / Paulo's patch series that added rcu to scsi bus device handling code, but IMHO this race should still be possible to hit, at least in theory. Buglink: https://bugzilla.redhat.com/show_bug.cgi?id=1854811 Fix it anyway with a patch that was proposed by Paulo in the above bugzilla. Suggested-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Maxim Levitsky <mlevitsk@redhat.com> Message-Id: <20201210125929.1136390-2-mlevitsk@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-12-15icount: improve exec nocache usagePavel Dovgalyuk1-1/+1
cpu-exec tries to execute TB without caching when current icount budget is over. But sometimes refilled budget is big enough to try executing cached blocks. This patch checks that instruction budget is big enough for next block execution instead of just running cpu_exec_nocache. It halves the number of calls of cpu_exec_nocache function during tested OS boot scenario. Signed-off-by: Pavel Dovgalyuk <pavel.dovgalyuk@ispras.ru> Message-Id: <160741865825.348476.7169239332367828943.stgit@pasha-ThinkPad-X280> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-12-15Remove the deprecated -show-cursor optionThomas Huth4-21/+6
It has been marked as deprecated since QEMU v5.0, replaced by the corresponding parameter of the -display option. Signed-off-by: Thomas Huth <thuth@redhat.com> Message-Id: <20201210155808.233895-5-thuth@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-12-15Remove the deprecated -realtime optionThomas Huth5-48/+9
It has been marked as deprecated since QEMU v4.2, replaced by the -overcommit option. Time to remove it now. Signed-off-by: Thomas Huth <thuth@redhat.com> Message-Id: <20201210155808.233895-4-thuth@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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