Revision tags: v9.2.0, v9.1.2, v9.1.1, v9.1.0 |
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d4c453f6 |
| 06-May-2024 |
Richard Henderson <richard.henderson@linaro.org> |
Merge tag 'for-upstream' of https://gitlab.com/bonzini/qemu into staging
* target/i386: Introduce SapphireRapids-v3 to add missing features * switch boards to "default y" * allow building emulators
Merge tag 'for-upstream' of https://gitlab.com/bonzini/qemu into staging
* target/i386: Introduce SapphireRapids-v3 to add missing features * switch boards to "default y" * allow building emulators without any board * configs: list "implied" device groups in the default configs * remove unnecessary declarations from typedefs.h * target/i386: Give IRQs a chance when resetting HF_INHIBIT_IRQ_MASK
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* tag 'for-upstream' of https://gitlab.com/bonzini/qemu: (46 commits) qga/commands-posix: fix typo in qmp_guest_set_user_password migration: do not include coroutine_int.h kvm: move target-dependent interrupt routing out of kvm-all.c pci: remove some types from typedefs.h tcg: remove CPU* types from typedefs.h display: remove GraphicHwOps from typedefs.h qapi/machine: remove types from typedefs.h monitor: remove MonitorDef from typedefs.h migration: remove PostcopyDiscardState from typedefs.h lockable: remove QemuLockable from typedefs.h intc: remove PICCommonState from typedefs.h qemu-option: remove QemuOpt from typedefs.h net: remove AnnounceTimer from typedefs.h numa: remove types from typedefs.h qdev-core: remove DeviceListener from typedefs.h fw_cfg: remove useless declarations from typedefs.h build: do not build virtio-vga-gl if virgl/opengl not available bitmap: Use g_try_new0/g_new0/g_renew target/i386: Introduce SapphireRapids-v3 to add missing features docs: document new convention for Kconfig board symbols ...
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
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15d62536 |
| 02-May-2024 |
Paolo Bonzini <pbonzini@redhat.com> |
tcg: remove CPU* types from typedefs.h
hw/core/cpu.h is already using struct forward declarations in some cases to avoid inclusions, and otherwise CPUAddressSpace and CPUJumpCache are only used toge
tcg: remove CPU* types from typedefs.h
hw/core/cpu.h is already using struct forward declarations in some cases to avoid inclusions, and otherwise CPUAddressSpace and CPUJumpCache are only used together with their definition. CPUTLBEntryFull is always used when their definition is available. Remove all three from typedefs.h.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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fd87be1d |
| 26-Apr-2024 |
Richard Henderson <richard.henderson@linaro.org> |
Merge tag 'accel-20240426' of https://github.com/philmd/qemu into staging
Accelerators patches
A lot of trivial cleanups and simplifications (moving methods around, adding/removing #include stateme
Merge tag 'accel-20240426' of https://github.com/philmd/qemu into staging
Accelerators patches
A lot of trivial cleanups and simplifications (moving methods around, adding/removing #include statements). Most notable changes:
- Rename NEED_CPU_H -> COMPILING_PER_TARGET - Rename few template headers using the '.h.inc' suffix - Extract some definitions / declarations into their own header: - accel/tcg/user-retaddr.h (helper_retaddr) - include/exec/abi_ptr.h (abi_ptr) - include/exec/breakpoint.h (CPUBreakpoint, CPUWatchpoint) - include/exec/mmu-access-type.h (MMUAccessType) - include/user/tswap-target.h (tswapl, bswaptls)
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* tag 'accel-20240426' of https://github.com/philmd/qemu: (38 commits) plugins: Include missing 'qemu/bitmap.h' header hw/core: Avoid including the full 'hw/core/cpu.h' in 'tcg-cpu-ops.h' exec: Move CPUTLBEntry helpers to cputlb.c exec: Restrict inclusion of 'user/guest-base.h' exec: Rename 'exec/user/guest-base.h' as 'user/guest-base.h' exec: Restrict 'cpu_ldst.h' to TCG accelerator exec: Restrict TCG specific declarations of 'cputlb.h' exec: Declare CPUBreakpoint/CPUWatchpoint type in 'breakpoint.h' header exec: Declare MMUAccessType type in 'mmu-access-type.h' header exec: Declare abi_ptr type in its own 'abi_ptr.h' header exec/user: Do not include 'cpu.h' in 'abitypes.h' exec: Move [b]tswapl() declarations to 'exec/user/tswap-target.h' exec: Declare target_words_bigendian() in 'exec/tswap.h' exec/cpu-all: Remove unused tswapls() definitions exec/cpu-all: Remove unused 'qemu/thread.h' header exec/cpu-all: Reduce 'qemu/rcu.h' header inclusion accel/hvf: Use accel-specific per-vcpu @dirty field accel/nvmm: Use accel-specific per-vcpu @dirty field accel/whpx: Use accel-specific per-vcpu @dirty field accel/tcg: Rename helper-head.h -> helper-head.h.inc ...
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
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893b4bde |
| 10-Jan-2024 |
Philippe Mathieu-Daudé <philmd@linaro.org> |
accel/tcg: Include missing headers in 'tb-jmp-cache.h'
Due to missing headers, when including "tb-jmp-cache.h" we might get:
accel/tcg/tb-jmp-cache.h:21:21: error: field ‘rcu’ has incomplete type
accel/tcg: Include missing headers in 'tb-jmp-cache.h'
Due to missing headers, when including "tb-jmp-cache.h" we might get:
accel/tcg/tb-jmp-cache.h:21:21: error: field ‘rcu’ has incomplete type 21 | struct rcu_head rcu; | ^~~ accel/tcg/tb-jmp-cache.h:24:9: error: unknown type name ‘vaddr’ 24 | vaddr pc; | ^~~~~
Add the missing "qemu/rcu.h" and "exec/cpu-common.h" headers.
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Acked-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20240111162442.43755-1-philmd@linaro.org>
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1c8e621f |
| 30-Jan-2024 |
Peter Maydell <peter.maydell@linaro.org> |
Merge tag 'pull-tcg-20240130' of https://gitlab.com/rth7680/qemu into staging
linux-user: Allow gdbstub to ignore page protection cpu-exec: simplify jump cache management include/exec: Cleanups towa
Merge tag 'pull-tcg-20240130' of https://gitlab.com/rth7680/qemu into staging
linux-user: Allow gdbstub to ignore page protection cpu-exec: simplify jump cache management include/exec: Cleanups toward building accel/tcg once
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* tag 'pull-tcg-20240130' of https://gitlab.com/rth7680/qemu: (31 commits) target/i386: Extract x86_cpu_exec_halt() from accel/tcg/ accel/tcg: Introduce TCGCPUOps::cpu_exec_halt() handler accel/tcg: Inline need_replay_interrupt target/i386: Extract x86_need_replay_interrupt() from accel/tcg/ accel/tcg: Introduce TCGCPUOps::need_replay_interrupt() handler accel/tcg: Use CPUState.cc instead of CPU_GET_CLASS in cpu-exec.c target/loongarch: Constify loongarch_tcg_ops include/qemu: Add TCGCPUOps typedef to typedefs.h accel/tcg: Un-inline icount_exit_request() for clarity accel/tcg: Rename tcg_cpus_exec() -> tcg_cpu_exec() accel/tcg: Rename tcg_cpus_destroy() -> tcg_cpu_destroy() accel/tcg: Rename tcg_ss[] -> tcg_specific_ss[] in meson accel/tcg: Move perf and debuginfo support to tcg/ accel/tcg: Remove #ifdef TARGET_I386 from perf.c tcg: Make tb_cflags() usable from target-agnostic code accel/tcg: Make use of qemu_target_page_mask() in perf.c target: Make qemu_target_page_mask() available for *-user accel/tcg/cpu-exec: Use RCU_READ_LOCK_GUARD tests/tcg: Add the PROT_NONE gdbstub test tests/tcg: Factor out gdbstub test functions ...
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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d157e540 |
| 22-Jan-2024 |
Paolo Bonzini <pbonzini@redhat.com> |
cpu-exec: simplify jump cache management
Unless I'm missing something egregious, the jmp cache is only every populated with a valid entry by the same thread that reads the cache. Therefore, the cont
cpu-exec: simplify jump cache management
Unless I'm missing something egregious, the jmp cache is only every populated with a valid entry by the same thread that reads the cache. Therefore, the contents of any valid entry are always consistent and there is no need for any acquire/release magic.
Indeed ->tb has to be accessed with atomics, because concurrent invalidations would otherwise cause data races. But ->pc is only ever accessed by one thread, and accesses to ->tb and ->pc within tb_lookup can never race with another tb_lookup. While the TranslationBlock (especially the flags) could be modified by a concurrent invalidation, store-release and load-acquire operations on the cache entry would not add any additional ordering beyond what you get from performing the accesses within a single thread.
Because of this, there is really nothing to win in splitting the CF_PCREL and !CF_PCREL paths. It is easier to just always use the ->pc field in the jump cache.
I noticed this while working on splitting commit 8ed558ec0cb ("accel/tcg: Introduce TARGET_TB_PCREL", 2022-10-04) into multiple pieces, for the sake of finding a more fine-grained bisection result for https://gitlab.com/qemu-project/qemu/-/issues/2092. It does not (and does not intend to) fix that issue; therefore it may make sense to not commit it until the root cause of issue #2092 is found.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Tested-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20240122153409.351959-1-pbonzini@redhat.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
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4329d049 |
| 26-Jun-2023 |
Richard Henderson <richard.henderson@linaro.org> |
Merge tag 'pull-tcg-20230626' of https://gitlab.com/rth7680/qemu into staging
accel/tcg: Replace target_ulong in some APIs accel/tcg: Remove CONFIG_PROFILER accel/tcg: Store some tlb flags in CPUTLB
Merge tag 'pull-tcg-20230626' of https://gitlab.com/rth7680/qemu into staging
accel/tcg: Replace target_ulong in some APIs accel/tcg: Remove CONFIG_PROFILER accel/tcg: Store some tlb flags in CPUTLBEntryFull tcg: Issue memory barriers as required for the guest memory model tcg: Fix temporary variable in tcg_gen_gvec_andcs
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* tag 'pull-tcg-20230626' of https://gitlab.com/rth7680/qemu: (22 commits) accel/tcg: Renumber TLB_DISCARD_WRITE accel/tcg: Move TLB_WATCHPOINT to TLB_SLOW_FLAGS_MASK accel/tcg: Store some tlb flags in CPUTLBEntryFull accel/tcg: Remove check_tcg_memory_orders_compatible tcg: Add host memory barriers to cpu_ldst.h interfaces tcg: Do not elide memory barriers for !CF_PARALLEL in system mode target/microblaze: Define TCG_GUEST_DEFAULT_MO tcg: Fix temporary variable in tcg_gen_gvec_andcs accel/tcg: remove CONFIG_PROFILER tests/plugin: Remove duplicate insn log from libinsn.so softfloat: use QEMU_FLATTEN to avoid mistaken isra inlining cpu: Replace target_ulong with hwaddr in tb_invalidate_phys_addr() accel/tcg: Replace target_ulong with vaddr in translator_*() accel/tcg: Replace target_ulong with vaddr in *_mmu_lookup() accel: Replace target_ulong with vaddr in probe_*() accel/tcg: Widen pc to vaddr in CPUJumpCache accel/tcg/cpu-exec.c: Widen pc to vaddr accel/tcg/cputlb.c: Widen addr in MMULookupPageData accel/tcg/cputlb.c: Widen CPUTLBEntry access functions target: Widen pc/cs_base in cpu_get_tb_cpu_state ...
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
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06f3831c |
| 21-Jun-2023 |
Anton Johansson <anjo@rev.ng> |
accel/tcg: Widen pc to vaddr in CPUJumpCache
Related functions dealing with the jump cache are also updated.
Signed-off-by: Anton Johansson <anjo@rev.ng> Reviewed-by: Richard Henderson <richard.hen
accel/tcg: Widen pc to vaddr in CPUJumpCache
Related functions dealing with the jump cache are also updated.
Signed-off-by: Anton Johansson <anjo@rev.ng> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20230621135633.1649-8-anjo@rev.ng> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
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Revision tags: v8.0.0 |
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a2b5f8b8 |
| 01-Mar-2023 |
Peter Maydell <peter.maydell@linaro.org> |
Merge tag 'pull-tcg-20230301' of https://gitlab.com/rth7680/qemu into staging
helper-head: Add fpu/softfloat-types.h softmmu: Use memmove in flatview_write_continue tcg: Add sign param to probe_acce
Merge tag 'pull-tcg-20230301' of https://gitlab.com/rth7680/qemu into staging
helper-head: Add fpu/softfloat-types.h softmmu: Use memmove in flatview_write_continue tcg: Add sign param to probe_access_flags, probe_access_full tcg: Convert TARGET_TB_PCREL to CF_PCREL tcg: Simplify temporary lifetimes for translators
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* tag 'pull-tcg-20230301' of https://gitlab.com/rth7680/qemu: (62 commits) tcg: Update docs/devel/tcg-ops.rst for temporary changes tcg: Remove tcg_temp_local_new_*, tcg_const_local_* exec/gen-icount: Don't use tcg_temp_local_new_i32 target/xtensa: Don't use tcg_temp_local_new_* target/ppc: Don't use tcg_temp_local_new target/mips: Don't use tcg_temp_local_new target/i386: Don't use tcg_temp_local_new target/hppa: Don't use tcg_temp_local_new target/hexagon/idef-parser: Drop gen_tmp_local target/hexagon: Don't use tcg_temp_local_new_* target/cris: Don't use tcg_temp_local_new target/arm: Don't use tcg_temp_local_new_* target/arm: Drop copies in gen_sve_{ldr,str} tcg: Change default temp lifetime to TEMP_TB tcg: Don't re-use TEMP_TB temporaries accel/tcg/plugin: Tidy plugin_gen_disable_mem_helpers accel/tcg/plugin: Use tcg_temp_ebb_* tcg: Use tcg_constant_ptr in do_dup tcg: Use tcg_temp_ebb_new_* in tcg/ tcg: Add tcg_temp_ebb_new_{i32,i64,ptr} ...
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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2dd5b7a1 |
| 27-Feb-2023 |
Anton Johansson <anjo@rev.ng> |
accel/tcg: Move jmp-cache `CF_PCREL` checks to caller
tb-jmp-cache.h contains a few small functions that only exist to hide a CF_PCREL check, however the caller often already performs such a check.
accel/tcg: Move jmp-cache `CF_PCREL` checks to caller
tb-jmp-cache.h contains a few small functions that only exist to hide a CF_PCREL check, however the caller often already performs such a check.
This patch moves CF_PCREL checks from the callee to the caller, and also removes these functions which now only hide an access of the jmp-cache.
Signed-off-by: Anton Johansson <anjo@rev.ng> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Message-Id: <20230227135202.9710-12-anjo@rev.ng> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
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4be79026 |
| 27-Feb-2023 |
Anton Johansson <anjo@rev.ng> |
accel/tcg: Replace `TARGET_TB_PCREL` with `CF_PCREL`
Signed-off-by: Anton Johansson <anjo@rev.ng> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Message-Id: <20230227135202.9710-5-anjo@rev.
accel/tcg: Replace `TARGET_TB_PCREL` with `CF_PCREL`
Signed-off-by: Anton Johansson <anjo@rev.ng> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Message-Id: <20230227135202.9710-5-anjo@rev.ng> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
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f991d61d |
| 02-Feb-2023 |
Peter Maydell <peter.maydell@linaro.org> |
Merge tag 'pull-jan-omnibus-020223-1' of https://gitlab.com/stsquad/qemu into staging
Testing, docs, semihosting and plugin updates
- update playbooks for custom runners - add section timing su
Merge tag 'pull-jan-omnibus-020223-1' of https://gitlab.com/stsquad/qemu into staging
Testing, docs, semihosting and plugin updates
- update playbooks for custom runners - add section timing support to gitlab - upgrade fedora images to 37 - purge perl from the build system and deps - disable unstable tests in CI - improve intro, emulation and semihosting docs - semihosting bug fix and O_BINARY default - add memory-sve test - fix some races in qht - improve plugin handling of memory helpers - optimise plugin hooks - fix some plugin deadlocks - reduce win64-cross build time by dropping some targets
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* tag 'pull-jan-omnibus-020223-1' of https://gitlab.com/stsquad/qemu: (36 commits) gitlab: cut even more from cross-win64-system build plugins: Iterate on cb_lists in qemu_plugin_user_exit cpu-exec: assert that plugin_mem_cbs is NULL after execution tcg: exclude non-memory effecting helpers from instrumentation translator: always pair plugin_gen_insn_{start, end} calls plugins: fix optimization in plugin_gen_disable_mem_helpers plugins: make qemu_plugin_user_exit's locking order consistent with fork_start's util/qht: use striped locks under TSAN thread: de-const qemu_spin_destroy util/qht: add missing atomic_set(hashes[i]) cpu: free cpu->tb_jmp_cache with RCU tests/tcg: add memory-sve test for aarch64 semihosting: add O_BINARY flag in host_open for NT compatibility semihosting: Write back semihosting data before completion callback docs: add an introduction to the system docs semihosting: add semihosting section to the docs docs: add a new section to outline emulation support docs: add hotlinks to about preface text MAINTAINERS: Fix the entry for tests/tcg/nios2 gitlab: wrap up test results for custom runners ...
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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#
4731f89b |
| 24-Jan-2023 |
Emilio Cota <cota@braap.org> |
cpu: free cpu->tb_jmp_cache with RCU
Fixes the appended use-after-free. The root cause is that during tb invalidation we use CPU_FOREACH, and therefore to safely free a vCPU we must wait for an RCU
cpu: free cpu->tb_jmp_cache with RCU
Fixes the appended use-after-free. The root cause is that during tb invalidation we use CPU_FOREACH, and therefore to safely free a vCPU we must wait for an RCU grace period to elapse.
$ x86_64-linux-user/qemu-x86_64 tests/tcg/x86_64-linux-user/munmap-pthread ================================================================= ==1800604==ERROR: AddressSanitizer: heap-use-after-free on address 0x62d0005f7418 at pc 0x5593da6704eb bp 0x7f4961a7ac70 sp 0x7f4961a7ac60 READ of size 8 at 0x62d0005f7418 thread T2 #0 0x5593da6704ea in tb_jmp_cache_inval_tb ../accel/tcg/tb-maint.c:244 #1 0x5593da6704ea in do_tb_phys_invalidate ../accel/tcg/tb-maint.c:290 #2 0x5593da670631 in tb_phys_invalidate__locked ../accel/tcg/tb-maint.c:306 #3 0x5593da670631 in tb_invalidate_phys_page_range__locked ../accel/tcg/tb-maint.c:542 #4 0x5593da67106d in tb_invalidate_phys_range ../accel/tcg/tb-maint.c:614 #5 0x5593da6a64d4 in target_munmap ../linux-user/mmap.c:766 #6 0x5593da6dba05 in do_syscall1 ../linux-user/syscall.c:10105 #7 0x5593da6f564c in do_syscall ../linux-user/syscall.c:13329 #8 0x5593da49e80c in cpu_loop ../linux-user/x86_64/../i386/cpu_loop.c:233 #9 0x5593da6be28c in clone_func ../linux-user/syscall.c:6633 #10 0x7f496231cb42 in start_thread nptl/pthread_create.c:442 #11 0x7f49623ae9ff (/lib/x86_64-linux-gnu/libc.so.6+0x1269ff)
0x62d0005f7418 is located 28696 bytes inside of 32768-byte region [0x62d0005f0400,0x62d0005f8400) freed by thread T148 here: #0 0x7f49627b6460 in __interceptor_free ../../../../src/libsanitizer/asan/asan_malloc_linux.cpp:52 #1 0x5593da5ac057 in cpu_exec_unrealizefn ../cpu.c:180 #2 0x5593da81f851 (/home/cota/src/qemu/build/qemu-x86_64+0x484851)
Signed-off-by: Emilio Cota <cota@braap.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20230111151628.320011-2-cota@braap.org> Signed-off-by: Alex Bennée <alex.bennee@linaro.org> Message-Id: <20230124180127.1881110-27-alex.bennee@linaro.org>
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Revision tags: v7.2.0 |
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#
4a9c0467 |
| 05-Oct-2022 |
Stefan Hajnoczi <stefanha@redhat.com> |
Merge tag 'pull-tcg-20221004' of https://gitlab.com/rth7680/qemu into staging
Cache CPUClass for use in hot code paths. Add CPUTLBEntryFull, probe_access_full, tlb_set_page_full. Add generic support
Merge tag 'pull-tcg-20221004' of https://gitlab.com/rth7680/qemu into staging
Cache CPUClass for use in hot code paths. Add CPUTLBEntryFull, probe_access_full, tlb_set_page_full. Add generic support for TARGET_TB_PCREL. tcg/ppc: Optimize 26-bit jumps using STQ for POWER 2.07 target/sh4: Fix TB_FLAG_UNALIGN
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* tag 'pull-tcg-20221004' of https://gitlab.com/rth7680/qemu: target/sh4: Fix TB_FLAG_UNALIGN tcg/ppc: Optimize 26-bit jumps accel/tcg: Introduce TARGET_TB_PCREL accel/tcg: Introduce tb_pc and log_pc hw/core: Add CPUClass.get_pc include/hw/core: Create struct CPUJumpCache accel/tcg: Inline tb_flush_jmp_cache accel/tcg: Do not align tb->page_addr[0] accel/tcg: Use DisasContextBase in plugin_gen_tb_start accel/tcg: Use bool for page_find_alloc accel/tcg: Remove PageDesc code_bitmap include/exec: Introduce TARGET_PAGE_ENTRY_EXTRA accel/tcg: Introduce tlb_set_page_full accel/tcg: Introduce probe_access_full accel/tcg: Suppress auto-invalidate in probe_access_internal accel/tcg: Drop addr member from SavedIOTLB accel/tcg: Rename CPUIOTLBEntry to CPUTLBEntryFull cputlb: used cached CPUClass in our hot-paths hw/core/cpu-sysemu: used cached class in cpu_asidx_from_attrs cpu: cache CPUClass in CPUState for hot code paths
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
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#
8ed558ec |
| 12-Aug-2022 |
Richard Henderson <richard.henderson@linaro.org> |
accel/tcg: Introduce TARGET_TB_PCREL
Prepare for targets to be able to produce TBs that can run in more than one virtual context.
Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Signed-off-by: Ri
accel/tcg: Introduce TARGET_TB_PCREL
Prepare for targets to be able to produce TBs that can run in more than one virtual context.
Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
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a976a99a |
| 15-Aug-2022 |
Richard Henderson <richard.henderson@linaro.org> |
include/hw/core: Create struct CPUJumpCache
Wrap the bare TranslationBlock pointer into a structure.
Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <f4bug@ams
include/hw/core: Create struct CPUJumpCache
Wrap the bare TranslationBlock pointer into a structure.
Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
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