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2022-09-06accel/tcg: Document the faulting lookup in tb_lookup_cmpRichard Henderson
It was non-obvious to me why we can raise an exception in the middle of a comparison function, but it works. While nearby, use TARGET_PAGE_ALIGN instead of open-coding. Acked-by: Ilya Leoshkevich <iii@linux.ibm.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2022-09-06accel/tcg: Use probe_access_internal for softmmu get_page_addr_code_hostpRichard Henderson
Simplify the implementation of get_page_addr_code_hostp by reusing the existing probe_access infrastructure. Acked-by: Ilya Leoshkevich <iii@linux.ibm.com> Tested-by: Ilya Leoshkevich <iii@linux.ibm.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2022-09-06accel/tcg: Move qemu_ram_addr_from_host_nofail to physmem.cRichard Henderson
The base qemu_ram_addr_from_host function is already in softmmu/physmem.c; move the nofail version to be adjacent. Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Acked-by: Ilya Leoshkevich <iii@linux.ibm.com> Tested-by: Ilya Leoshkevich <iii@linux.ibm.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2022-09-06accel/tcg: Make tb_htable_lookup staticRichard Henderson
The function is not used outside of cpu-exec.c. Move it and its subroutines up in the file, before the first use. Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Acked-by: Ilya Leoshkevich <iii@linux.ibm.com> Tested-by: Ilya Leoshkevich <iii@linux.ibm.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2022-09-06accel/tcg: Unlock mmap_lock after longjmpRichard Henderson
The mmap_lock is held around tb_gen_code. While the comment is correct that the lock is dropped when tb_gen_code runs out of memory, the lock is *not* dropped when an exception is raised reading code for translation. Acked-by: Alistair Francis <alistair.francis@wdc.com> Acked-by: Ilya Leoshkevich <iii@linux.ibm.com> Tested-by: Ilya Leoshkevich <iii@linux.ibm.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2022-09-06accel/tcg: Properly implement get_page_addr_code for user-onlyRichard Henderson
The current implementation is a no-op, simply returning addr. This is incorrect, because we ought to be checking the page permissions for execution. Make get_page_addr_code inline for both implementations. Acked-by: Ilya Leoshkevich <iii@linux.ibm.com> Tested-by: Ilya Leoshkevich <iii@linux.ibm.com> Acked-by: Alistair Francis <alistair.francis@wdc.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2022-09-01KVM: dirty ring: add missing memory barrierPaolo Bonzini
The KVM_DIRTY_GFN_F_DIRTY flag ensures that the entry is valid. If the read of the fields are not ordered after the read of the flag, QEMU might see stale values. Cc: Gavin Shan <gshan@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Peter Xu <peterx@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2022-08-18kvm: fix segfault with query-stats-schemas and -M nonePaolo Bonzini
-M none creates a guest without a vCPU, causing the following error: $ ./qemu-system-x86_64 -qmp stdio -M none -accel kvm {execute:qmp_capabilities} {"return": {}} {execute: query-stats-schemas} Segmentation fault (core dumped) Fix it by not querying the vCPU stats if first_cpu is NULL. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2022-08-11linux-user/aarch64: Reset target data on MADV_DONTNEEDVitaly Buka
aarch64 stores MTE tags in target_date, and they should be reset by MADV_DONTNEED. Signed-off-by: Vitaly Buka <vitalybuka@google.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20220711220028.2467290-1-vitalybuka@google.com> [lv: fix code style issues] Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2022-08-09icount: Take iothread lock when running QEMU timersPeter Maydell
The function icount_prepare_for_run() is called with the iothread unlocked, but it can call icount_notify_aio_contexts() which will run qemu timer handlers. Those are supposed to be run only with the iothread lock held, so take the lock while we do that. Since icount mode runs everything on a single thread anyway, not holding the lock is likely mostly not going to introduce races, but it can cause us to trip over assertions that we do hold the lock, such as the one reported in issue 1130. Resolves: https://gitlab.com/qemu-project/qemu/-/issues/1130 Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Tested-by: Pavel Dovgalyuk <Pavel.Dovgalyuk@ispras.ru> Message-id: 20220801164527.3134765-1-peter.maydell@linaro.org
2022-07-29kvm: don't use perror() without useful errnoCornelia Huck
perror() is designed to append the decoded errno value to a string. This, however, only makes sense if we called something that actually sets errno prior to that. For the callers that check for split irqchip support that is not the case, and we end up with confusing error messages that end in "success". Use error_report() instead. Signed-off-by: Cornelia Huck <cohuck@redhat.com> Message-Id: <20220728142446.438177-1-cohuck@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2022-07-22accel/kvm: Avoid Coverity warning in query_stats()Peter Maydell
Coverity complains that there is a codepath in the query_stats() function where it can leak the memory pointed to by stats_list. This can only happen if the caller passes something other than STATS_TARGET_VM or STATS_TARGET_VCPU as the 'target', which no callsite does. Enforce this assumption using g_assert_not_reached(), so that if we have a future bug we hit the assert rather than silently leaking memory. Resolves: Coverity CID 1490140 Fixes: cc01a3f4cadd91e6 ("kvm: Support for querying fd-based stats") Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Message-Id: <20220719134853.327059-1-peter.maydell@linaro.org> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2022-07-21Merge tag 'for-upstream' of https://gitlab.com/bonzini/qemu into stagingPeter Maydell
* Boolean statistics for KVM * Fix build on Haiku # gpg: Signature made Tue 19 Jul 2022 10:32:34 BST # 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 * tag 'for-upstream' of https://gitlab.com/bonzini/qemu: util: Fix broken build on Haiku kvm: add support for boolean statistics monitor: add support for boolean statistics Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2022-07-20softmmu/dirtylimit: Implement virtual CPU throttleHyman Huang(黄勇)
Setup a negative feedback system when vCPU thread handling KVM_EXIT_DIRTY_RING_FULL exit by introducing throttle_us_per_full field in struct CPUState. Sleep throttle_us_per_full microseconds to throttle vCPU if dirtylimit is in service. Signed-off-by: Hyman Huang(黄勇) <huangy81@chinatelecom.cn> Reviewed-by: Peter Xu <peterx@redhat.com> Message-Id: <977e808e03a1cef5151cae75984658b6821be618.1656177590.git.huangy81@chinatelecom.cn> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2022-07-20accel/kvm/kvm-all: Introduce kvm_dirty_ring_size functionHyman Huang(黄勇)
Introduce kvm_dirty_ring_size util function to help calculate dirty ring ful time. Signed-off-by: Hyman Huang(黄勇) <huangy81@chinatelecom.cn> Acked-by: Peter Xu <peterx@redhat.com> Message-Id: <f9ce1f550bfc0e3a1f711e17b1dbc8f701700e56.1656177590.git.huangy81@chinatelecom.cn> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2022-07-20accel/kvm/kvm-all: Refactor per-vcpu dirty ring reapingHyman Huang(黄勇)
Add a non-required argument 'CPUState' to kvm_dirty_ring_reap so that it can cover single vcpu dirty-ring-reaping scenario. Signed-off-by: Hyman Huang(黄勇) <huangy81@chinatelecom.cn> Reviewed-by: Peter Xu <peterx@redhat.com> Message-Id: <c32001242875e83b0d9f78f396fe2dcd380ba9e8.1656177590.git.huangy81@chinatelecom.cn> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2022-07-18kvm: add support for boolean statisticsPaolo Bonzini
The next version of Linux will introduce boolean statistics, which can only have 0 or 1 values. Convert them to the new QAPI fields added in the previous commit. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2022-07-18linux-user/aarch64: Do not clear PROT_MTE on mprotectRichard Henderson
The documentation for PROT_MTE says that it cannot be cleared by mprotect. Further, the implementation of the VM_ARCH_CLEAR bit, contains PROT_BTI confiming that bit should be cleared. Introduce PAGE_TARGET_STICKY to allow target/arch/cpu.h to control which bits may be reset during page_set_flags. This is sort of the opposite of VM_ARCH_CLEAR, but works better with qemu's PAGE_* bits that are separate from PROT_* bits. Reported-by: Vitaly Buka <vitalybuka@google.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20220711031420.17820-1-richard.henderson@linaro.org Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2022-07-12Merge tag 'for-upstream' of https://gitlab.com/bonzini/qemu into stagingPeter Maydell
* fuzzing fixes (Alexander) * fix cross compilation CFLAGS and compiler choice * do not specify -bios option for tests/vm * miscellaneous fixes * preparation for pre-install tree in the build directory (Akihiko) # gpg: Signature made Tue 12 Jul 2022 13:47:19 BST # 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 * tag 'for-upstream' of https://gitlab.com/bonzini/qemu: meson: place default firmware path under .../share qga: Relocate a path emitted in the help text build: Do not depend on pc-bios for config-host.mak accel: kvm: Fix memory leak in find_stats_descriptors audio/dbus: fix building fuzz: only use generic-fuzz targets on oss-fuzz build: improve -fsanitize-coverage-allowlist check build: try both native and cross compilers configure: pass whole target name to probe_target_compiler tests/tcg: compile system emulation tests as freestanding configure: write EXTRA_CFLAGS for all sub-Makefiles configure: allow more host/target combos to use the host compiler configure, pc-bios/vof: pass cross CFLAGS correctly configure, pc-bios/s390-ccw: pass cross CFLAGS correctly configure, pc-bios/optionrom: pass cross CFLAGS correctly pc-bios/optionrom: use -m16 unconditionally scsi/lsi53c895a: fix use-after-free in lsi_do_msgout (CVE-2022-0216) tests/vm: do not specify -bios option Signed-off-by: Peter Maydell <peter.maydell@linaro.org> # Conflicts: # pc-bios/s390-ccw/netboot.mak
2022-07-12accel/tcg: Fix unaligned stores to s390x low-address-protected lowcoreIlya Leoshkevich
If low-address-protection is active, unaligned stores to non-protected parts of lowcore lead to protection exceptions. The reason is that in such cases tlb_fill() call in store_helper_unaligned() covers [0, addr + size) range, which contains the protected portion of lowcore. This range is too large. The most straightforward fix would be to make sure we stay within the original [addr, addr + size) range. However, if an unaligned access affects a single page, we don't need to call tlb_fill() in store_helper_unaligned() at all, since it would be identical to the previous tlb_fill() call in store_helper(), and therefore a no-op. If an unaligned access covers multiple pages, this situation does not occur. Therefore simply skip TLB handling in store_helper_unaligned() if we are dealing with a single page. Fixes: 2bcf018340cb ("s390x/tcg: low-address protection support") Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com> Message-Id: <20220711185640.3558813-2-iii@linux.ibm.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2022-07-08accel: kvm: Fix memory leak in find_stats_descriptorsMiaoqian Lin
This function doesn't release descriptors in one error path, result in memory leak. Call g_free() to release it. Fixes: cc01a3f4cadd ("kvm: Support for querying fd-based stats") Signed-off-by: Miaoqian Lin <linmq006@gmail.com> Message-Id: <20220624063159.57411-1-linmq006@gmail.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2022-06-28accel/stubs: Add tcg stub for probe_access_flagsRichard Henderson
Reviewed-by: Luc Michel <lmichel@kalray.eu> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2022-06-27accel: Introduce current_accel_name()Alexander Graf
We need to fetch the name of the current accelerator in flexible error messages more going forward. Let's create a helper that gives it to us without casting in the target code. Signed-off-by: Alexander Graf <agraf@csgraf.de> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20220620192242.70573-1-agraf@csgraf.de Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2022-06-20accel/tcg: Reorganize tcg_accel_ops_init()Philippe Mathieu-Daudé
Reorg TCG AccelOpsClass initialization to emphasis icount mode share more code with single-threaded TCG. Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20220323171751.78612-7-philippe.mathieu.daude@gmail.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2022-06-20accel/tcg: Init TCG cflags in vCPU thread handlerPhilippe Mathieu-Daudé
Move TCG cflags initialization to thread handler. Remove the duplicated assert checks. Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Message-Id: <20220323171751.78612-6-philippe.mathieu.daude@gmail.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2022-06-14qmp: add filtering of statistics by namePaolo Bonzini
Allow retrieving only a subset of statistics. This can be useful for example in order to plot a subset of the statistics many times a second: KVM publishes ~40 statistics for each vCPU on x86; retrieving and serializing all of them would be useless. Another use will be in HMP in the following patch; implementing the filter in the backend is easy enough that it was deemed okay to make this a public interface. Example: { "execute": "query-stats", "arguments": { "target": "vcpu", "vcpus": [ "/machine/unattached/device[2]", "/machine/unattached/device[4]" ], "providers": [ { "provider": "kvm", "names": [ "l1d_flush", "exits" ] } } } { "return": { "vcpus": [ { "path": "/machine/unattached/device[2]" "providers": [ { "provider": "kvm", "stats": [ { "name": "l1d_flush", "value": 41213 }, { "name": "exits", "value": 74291 } ] } ] }, { "path": "/machine/unattached/device[4]" "providers": [ { "provider": "kvm", "stats": [ { "name": "l1d_flush", "value": 16132 }, { "name": "exits", "value": 57922 } ] } ] } ] } } Extracted from a patch by Mark Kanda. Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2022-06-14qmp: add filtering of statistics by providerPaolo Bonzini
Allow retrieving the statistics from a specific provider only. This can be used in the future by HMP commands such as "info sync-profile" or "info profile". The next patch also adds filter-by-provider capabilities to the HMP equivalent of query-stats, "info stats". Example: { "execute": "query-stats", "arguments": { "target": "vm", "providers": [ { "provider": "kvm" } ] } } The QAPI is a bit more verbose than just a list of StatsProvider, so that it can be subsequently extended with filtering of statistics by name. If a provider is specified more than once in the filter, each request will be included separately in the output. Extracted from a patch by Mark Kanda. Reviewed-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2022-06-14qmp: add filtering of statistics by target vCPUPaolo Bonzini
Introduce a simple filtering of statistics, that allows to retrieve statistics for a subset of the guest vCPUs. This will be used for example by the HMP monitor, in order to retrieve the statistics for the currently selected CPU. Example: { "execute": "query-stats", "arguments": { "target": "vcpu", "vcpus": [ "/machine/unattached/device[2]", "/machine/unattached/device[4]" ] } } Extracted from a patch by Mark Kanda. Reviewed-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2022-06-14kvm: Support for querying fd-based statsMark Kanda
Add support for querying fd-based KVM stats - as introduced by Linux kernel commit: cb082bfab59a ("KVM: stats: Add fd-based API to read binary stats data") This allows the user to analyze the behavior of the VM without access to debugfs. Signed-off-by: Mark Kanda <mark.kanda@oracle.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2022-06-11accel/tcg: Inline dump_opcount_info() and remove itBernhard Beschow
dump_opcount_info() is a one-line wrapper around tcg_dump_op_count() which is also exported. So use the latter directly. Signed-off-by: Bernhard Beschow <shentey@gmail.com> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Acked-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk> Message-Id: <20220520180109.8224-10-shentey@gmail.com> Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
2022-06-11accel/tcg/cpu-exec: Unexport dump_drift_info()Bernhard Beschow
Commit 3a841ab53f165910224dc4bebabf1a8f1d04200c 'qapi: introduce x-query-jit QMP command' basically moved the only function using dump_drift_info() to cpu-exec.c. Therefore, dump_drift_info() doesn't need to be exported any longer. Signed-off-by: Bernhard Beschow <shentey@gmail.com> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Acked-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk> Message-Id: <20220520180109.8224-9-shentey@gmail.com> Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
2022-06-08Fix 'writeable' typosPeter Maydell
We have about 30 instances of the typo/variant spelling 'writeable', and over 500 of the more common 'writable'. Standardize on the latter. Change produced with: sed -i -e 's/\([Ww][Rr][Ii][Tt]\)[Ee]\([Aa][Bb][Ll][Ee]\)/\1\2/g' $(git grep -il writeable) and then hand-undoing the instance in linux-headers/linux/kvm.h. Most of these changes are in comments or documentation; the exceptions are: * a local variable in accel/hvf/hvf-accel-ops.c * a local variable in accel/kvm/kvm-all.c * the PMCR_WRITABLE_MASK macro in target/arm/internals.h * the EPT_VIOLATION_GPA_WRITABLE macro in target/i386/hvf/vmcs.h (which is never used anywhere) * the AR_TYPE_WRITABLE_MASK macro in target/i386/hvf/vmx.h (which is never used anywhere) Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Stefan Weil <sw@weilnetz.de> Message-id: 20220505095015.2714666-1-peter.maydell@linaro.org
2022-06-06replay: rewrite async event handlingPavel Dovgalyuk
This patch decouples checkpoints and async events. It was a tricky part of replay implementation. Now it becomes much simpler and easier to maintain. Signed-off-by: Pavel Dovgalyuk <Pavel.Dovgalyuk@ispras.ru> Acked-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <165364837856.688121.8785039478408995979.stgit@pasha-ThinkPad-X280> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2022-05-11Clean up header guards that don't match their file nameMarkus Armbruster
Header guard symbols should match their file name to make guard collisions less likely. Cleaned up with scripts/clean-header-guards.pl, followed by some renaming of new guard symbols picked by the script to better ones. Signed-off-by: Markus Armbruster <armbru@redhat.com> Message-Id: <20220506134911.2856099-2-armbru@redhat.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> [Change to generated file ebpf/rss.bpf.skeleton.h backed out]
2022-04-26accel/tcg: Assert mmu_idx in range before use in cputlbRichard Henderson
Coverity reports out-of-bound accesses within cputlb.c. This should be a false positive due to how the index is decoded from MemOpIdx. To be fair, nothing is checking the correct bounds during encoding either. Assert index in range before use, both to catch user errors and to pacify static analysis. Fixes: Coverity CID 1487120, 1487127, 1487170, 1487196, 1487215, 1487238 Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Message-Id: <20220401170813.318609-1-richard.henderson@linaro.org>
2022-04-21compiler.h: replace QEMU_NORETURN with G_NORETURNMarc-André Lureau
G_NORETURN was introduced in glib 2.68, fallback to G_GNUC_NORETURN in glib-compat. Note that this attribute must be placed before the function declaration (bringing a bit of consistency in qemu codebase usage). Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Daniel P. Berrangé <berrange@redhat.com> Reviewed-by: Warner Losh <imp@bsdimp.com> Message-Id: <20220420132624.2439741-20-marcandre.lureau@redhat.com>
2022-04-20Merge tag 'pull-tcg-20220420' of https://gitlab.com/rth7680/qemu into stagingRichard Henderson
Cleanup sysemu/tcg.h usage. Fix indirect lowering vs cond branches Remove ATOMIC_MMU_IDX Add tcg_constant_ptr # -----BEGIN PGP SIGNATURE----- # # iQFRBAABCgA7FiEEekgeeIaLTbaoWgXAZN846K9+IV8FAmJgW38dHHJpY2hhcmQu # aGVuZGVyc29uQGxpbmFyby5vcmcACgkQZN846K9+IV8tpggApfg2CDI0bRMDBh0g # 04/xwNnzHuSa84/ocMOMUfD5pvBblUmeTH8fAwqcAPDM/EEZwWZl2V1bYzuIrbmR # 8zV+r1cOenDF5Tz8PWfy8XssinTVtTWh/TE0XNV9R/SbEM9eMsjHNu5osKVuLuq1 # rnHWZf8LuY7xGsy4GYqPN0dLE6HtQOfpj/eLGRAj9mZ7re0jKeWg3GdxYoiYDmks # NKmNHYcWD+SjjFvXlOafniQsHbBZmQc/qp7AShG/+VcYY9o1VfncWD6I2dV13RdB # N7++ZhGyQR4NOVo6CN1zLKhfuJqzH2q+qJ7vQ3xtXNAk53LGQ91zjoE+3KaJTrcy # dmnLUw== # =aKdS # -----END PGP SIGNATURE----- # gpg: Signature made Wed 20 Apr 2022 12:14:07 PM PDT # gpg: using RSA key 7A481E78868B4DB6A85A05C064DF38E8AF7E215F # gpg: issuer "richard.henderson@linaro.org" # gpg: Good signature from "Richard Henderson <richard.henderson@linaro.org>" [ultimate] * tag 'pull-tcg-20220420' of https://gitlab.com/rth7680/qemu: tcg: Add tcg_constant_ptr accel/tcg: Remove ATOMIC_MMU_IDX tcg: Fix indirect lowering vs TCG_OPF_COND_BRANCH Don't include sysemu/tcg.h if it is not necessary Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2022-04-20accel/tcg: Remove ATOMIC_MMU_IDXRichard Henderson
The last use of this macro was removed in f3e182b10013 ("accel/tcg: Push trace info building into atomic_common.c.inc") Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2022-04-20Don't include sysemu/tcg.h if it is not necessaryThomas Huth
This header only defines the tcg_allowed variable and the tcg_enabled() function - which are not required in many files that include this header. Drop the #include statement there. Signed-off-by: Thomas Huth <thuth@redhat.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> Message-Id: <20220315144107.1012530-1-thuth@redhat.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2022-04-20util/log: Remove qemu_log_flushRichard Henderson
All uses flush output immediately before or after qemu_log_unlock. Instead of a separate call, move the flush into qemu_log_unlock. 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> Message-Id: <20220417183019.755276-20-richard.henderson@linaro.org>
2022-04-20accel/tcg: Use cpu_dump_state between qemu_log_trylock/unlockRichard Henderson
Inside log_cpu_state, we perform qemu_log_trylock/unlock, which need not be done if we have already performed the lock beforehand. Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20220417183019.755276-15-richard.henderson@linaro.org>
2022-04-20exec/translator: Pass the locked filepointer to disas_log hookRichard Henderson
We have fetched and locked the logfile in translator_loop. Pass the filepointer down to the disas_log hook so that it need not be fetched and locked again. Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20220417183019.755276-13-richard.henderson@linaro.org>
2022-04-20*: Use fprintf between qemu_log_trylock/unlockRichard Henderson
Inside qemu_log, we perform qemu_log_trylock/unlock, which need not be done if we have already performed the lock beforehand. Always check the result of qemu_log_trylock -- only checking qemu_loglevel_mask races with the acquisition of the lock on the logfile. Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20220417183019.755276-10-richard.henderson@linaro.org>
2022-04-20util/log: Rename qemu_log_lock to qemu_log_trylockRichard Henderson
This function can fail, which makes it more like ftrylockfile or pthread_mutex_trylock than flockfile or pthread_mutex_lock, so rename it. To closer match the other trylock functions, release rcu_read_lock along the failure path, so that qemu_log_unlock need not be called on failure. Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20220417183019.755276-8-richard.henderson@linaro.org>
2022-04-06Remove qemu-common.h include from most unitsMarc-André Lureau
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Message-Id: <20220323155743.1585078-33-marcandre.lureau@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2022-04-06Replace qemu_real_host_page variables with inlined functionsMarc-André Lureau
Replace the global variables with inlined helper functions. getpagesize() is very likely annotated with a "const" function attribute (at least with glibc), and thus optimization should apply even better. This avoids the need for a constructor initialization too. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Message-Id: <20220323155743.1585078-12-marcandre.lureau@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2022-04-06Replace TARGET_WORDS_BIGENDIANMarc-André Lureau
Convert the TARGET_WORDS_BIGENDIAN macro, similarly to what was done with HOST_BIG_ENDIAN. The new TARGET_BIG_ENDIAN macro is either 0 or 1, and thus should always be defined to prevent misuse. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Suggested-by: Halil Pasic <pasic@linux.ibm.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20220323155743.1585078-8-marcandre.lureau@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2022-04-06Replace config-time define HOST_WORDS_BIGENDIANMarc-André Lureau
Replace a config-time define with a compile time condition define (compatible with clang and gcc) that must be declared prior to its usage. This avoids having a global configure time define, but also prevents from bad usage, if the config header wasn't included before. This can help to make some code independent from qemu too. gcc supports __BYTE_ORDER__ from about 4.6 and clang from 3.2. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> [ For the s390x parts I'm involved in ] Acked-by: Halil Pasic <pasic@linux.ibm.com> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20220323155743.1585078-7-marcandre.lureau@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2022-03-21Use g_new() & friends where that makes obvious senseMarkus Armbruster
g_new(T, n) is neater than g_malloc(sizeof(T) * n). It's also safer, for two reasons. One, it catches multiplication overflowing size_t. Two, it returns T * rather than void *, which lets the compiler catch more type errors. This commit only touches allocations with size arguments of the form sizeof(T). Patch created mechanically with: $ spatch --in-place --sp-file scripts/coccinelle/use-g_new-etc.cocci \ --macro-file scripts/cocci-macro-file.h FILES... Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Cédric Le Goater <clg@kaod.org> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Acked-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Message-Id: <20220315144156.1595462-4-armbru@redhat.com> Reviewed-by: Pavel Dovgalyuk <Pavel.Dovgalyuk@ispras.ru>
2022-03-16accel/tcg: Fix cpu_ldq_be_mmu typoRichard Henderson
In the conversion to cpu_ld_*_mmu, the retaddr parameter was corrupted in the one case of cpu_ldq_be_mmu. Fixes: f83bcecb1 ("accel/tcg: Add cpu_{ld,st}*_mmu interfaces") Resolves: https://gitlab.com/qemu-project/qemu/-/issues/902 Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20220315002506.152030-1-richard.henderson@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Tested-by: Thomas Huth <thuth@redhat.com> Signed-off-by: Thomas Huth <thuth@redhat.com>
generated by cgit v1.2.3 (git 2.26.2) at 2024-12-28 08:16:07 +0000