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2020-11-01memory: Set DIRTY_MEMORY_MIGRATION when IOMMU is enabledKirti Wankhede
mr->ram_block is NULL when mr->is_iommu is true, then fr.dirty_log_mask wasn't set correctly due to which memory listener's log_sync doesn't get called. This patch returns log_mask with DIRTY_MEMORY_MIGRATION set when IOMMU is enabled. Signed-off-by: Kirti Wankhede <kwankhede@nvidia.com> Reviewed-by: Yan Zhao <yan.y.zhao@intel.com> Acked-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
2020-10-26fuzz: Add fuzzer callbacks to DMA-read functionsAlexander Bulekov
We should be careful to not call any functions besides fuzz_dma_read_cb. Without --enable-fuzzing, fuzz_dma_read_cb is an empty inlined function. Signed-off-by: Alexander Bulekov <alxndr@bu.edu> Reviewed-by: Darren Kenny <darren.kenny@oracle.com> Message-Id: <20201023150746.107063-7-alxndr@bu.edu> Signed-off-by: Thomas Huth <thuth@redhat.com>
2020-10-26fuzz: Declare DMA Read callback functionAlexander Bulekov
This patch declares the fuzz_dma_read_cb function and uses the preprocessor and linker(weak symbols) to handle these cases: When we build softmmu/all with --enable-fuzzing, there should be no strong symbol defined for fuzz_dma_read_cb, and we link against a weak stub function. When we build softmmu/fuzz with --enable-fuzzing, we link against the strong symbol in generic_fuzz.c When we build softmmu/all without --enable-fuzzing, fuzz_dma_read_cb is an empty, inlined function. As long as we don't call any other functions when building the arguments, there should be no overhead. Signed-off-by: Alexander Bulekov <alxndr@bu.edu> Reviewed-by: Darren Kenny <darren.kenny@oracle.com> Message-Id: <20201023150746.107063-6-alxndr@bu.edu> Signed-off-by: Thomas Huth <thuth@redhat.com>
2020-10-24memory: Add FlatView foreach functionAlexander Bulekov
Acked-by: Paolo Bonzini <pbonzini@redhat.com> Reviewed-by: Darren Kenny <darren.kenny@oracle.com> Signed-off-by: Alexander Bulekov <alxndr@bu.edu> Message-Id: <20201023150746.107063-2-alxndr@bu.edu> Signed-off-by: Thomas Huth <thuth@redhat.com>
2020-10-13softmmu/memory: Log invalid memory accessesPhilippe Mathieu-Daudé
Log invalid memory accesses with as GUEST_ERROR. This is particularly useful since commit 5d971f9e67 which reverted ("memory: accept mismatching sizes in memory_region_access_valid"). Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Message-Id: <20201005152725.2143444-1-philmd@redhat.com> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2020-09-30exec: Remove MemoryRegion::global_locking fieldPhilippe Mathieu-Daudé
Last uses of memory_region_clear_global_locking() have been removed in commit 7070e085d4 ("acpi: mark PMTIMER as unlocked") and commit 08565552f7 ("cputlb: Move NOTDIRTY handling from I/O path to TLB path"). Remove memory_region_clear_global_locking() and the now unused 'global_locking' field in MemoryRegion. Reported-by: Alexander Bulekov <alxndr@bu.edu> Suggested-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Message-Id: <20200806150726.962-1-philmd@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-09-23qemu/atomic.h: rename atomic_ to qatomic_Stefan Hajnoczi
clang's C11 atomic_fetch_*() functions only take a C11 atomic type pointer argument. QEMU uses direct types (int, etc) and this causes a compiler error when a QEMU code calls these functions in a source file that also included <stdatomic.h> via a system header file: $ CC=clang CXX=clang++ ./configure ... && make ../util/async.c:79:17: error: address argument to atomic operation must be a pointer to _Atomic type ('unsigned int *' invalid) Avoid using atomic_*() names in QEMU's atomic.h since that namespace is used by <stdatomic.h>. Prefix QEMU's APIs with 'q' so that atomic.h and <stdatomic.h> can co-exist. I checked /usr/include on my machine and searched GitHub for existing "qatomic_" users but there seem to be none. This patch was generated using: $ git grep -h -o '\<atomic\(64\)\?_[a-z0-9_]\+' include/qemu/atomic.h | \ sort -u >/tmp/changed_identifiers $ for identifier in $(</tmp/changed_identifiers); do sed -i "s%\<$identifier\>%q$identifier%g" \ $(git grep -I -l "\<$identifier\>") done I manually fixed line-wrap issues and misaligned rST tables. Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Acked-by: Paolo Bonzini <pbonzini@redhat.com> Message-Id: <20200923105646.47864-1-stefanha@redhat.com>
2020-09-09softmmu: Add missing trace-events filePhilippe Mathieu-Daudé
Commit c7f419f584 moved softmmu-only files out of the root directory, but forgot to move the trace events, which should no longer be generated to "trace-root.h". Fix that by adding softmmu/trace-events. Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com> Tested-by: Claudio Fontana <cfontana@suse.de> Reviewed-by: Claudio Fontana <cfontana@suse.de> Message-id: 20200805130221.24487-1-philmd@redhat.com [Rebased onto meson. --Stefan] Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2020-08-21trace: switch position of headers to what Meson requiresPaolo Bonzini
Meson doesn't enjoy the same flexibility we have with Make in choosing the include path. In particular the tracing headers are using $(build_root)/$(<D). In order to keep the include directives unchanged, the simplest solution is to generate headers with patterns like "trace/trace-audio.h" and place forwarding headers in the source tree such that for example "audio/trace.h" includes "trace/trace-audio.h". This patch is too ugly to be applied to the Makefiles now. It's only a way to separate the changes to the tracing header files from the Meson rewrite of the tracing logic. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-07-21qom: Change object_get_canonical_path_component() not to mallocMarkus Armbruster
object_get_canonical_path_component() returns a malloced copy of a property name on success, null on failure. 19 of its 25 callers immediately free the returned copy. Change object_get_canonical_path_component() to return the property name directly. Since modifying the name would be wrong, adjust the return type to const char *. Drop the free from the 19 callers become simpler, add the g_strdup() to the other six. Signed-off-by: Markus Armbruster <armbru@redhat.com> Message-Id: <20200714160202.3121879-4-armbru@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Reviewed-by: Li Qiang <liq3ea@gmail.com>
2020-07-10softmmu: move softmmu only files from rootClaudio Fontana
move arch_init, balloon, cpus, ioport, memory, memory_mapping, qtest. They are all specific to CONFIG_SOFTMMU. Signed-off-by: Claudio Fontana <cfontana@suse.de> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Laurent Vivier <lvivier@redhat.com> Reviewed-by: Thomas Huth <thuth@redhat.com> Message-Id: <20200629093504.3228-2-cfontana@suse.de> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>