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* fuzz: Add fuzzer callbacks to DMA-read functionsAlexander Bulekov2020-10-261-0/+1
| | | | | | | | | | 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>
* fuzz: Declare DMA Read callback functionAlexander Bulekov2020-10-261-0/+13
| | | | | | | | | | | | | | | | | | | | | 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>
* memory: Add FlatView foreach functionAlexander Bulekov2020-10-241-0/+13
| | | | | | | | 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>
* softmmu/memory: Log invalid memory accessesPhilippe Mathieu-Daudé2020-10-131-0/+16
| | | | | | | | | | | | 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>
* exec: Remove MemoryRegion::global_locking fieldPhilippe Mathieu-Daudé2020-09-301-6/+0Star
| | | | | | | | | | | | | | | | 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>
* qemu/atomic.h: rename atomic_ to qatomic_Stefan Hajnoczi2020-09-231-3/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
* softmmu: Add missing trace-events filePhilippe Mathieu-Daudé2020-09-091-1/+1
| | | | | | | | | | | | | | | | | 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>
* trace: switch position of headers to what Meson requiresPaolo Bonzini2020-08-211-1/+1
| | | | | | | | | | | | | | | | | 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>
* qom: Change object_get_canonical_path_component() not to mallocMarkus Armbruster2020-07-211-1/+1
| | | | | | | | | | | | | | | | | | | 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>
* softmmu: move softmmu only files from rootClaudio Fontana2020-07-111-0/+3250
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>