qemu/softmmu
David Hildenbrand 29b838c05d util/oslib-posix: Forward SIGBUS to MCE handler under Linux
Temporarily modifying the SIGBUS handler is really nasty, as we might be
unlucky and receive an MCE SIGBUS while having our handler registered.
Unfortunately, there is no way around messing with SIGBUS when
MADV_POPULATE_WRITE is not applicable or not around.

Let's forward SIGBUS that don't belong to us to the already registered
handler and document the situation.

Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Signed-off-by: David Hildenbrand <david@redhat.com>
Message-Id: <20211217134611.31172-8-david@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2022-01-07 19:30:13 -05:00
..
arch_init.c meson.build: Define QEMU_ARCH in config-target.h 2021-08-26 17:02:00 +01:00
balloon.c qapi: Restrict balloon-related commands to machine code 2020-09-29 15:41:35 +02:00
bootdevice.c softmmu: move more files to softmmu/ 2020-10-12 11:50:21 -04:00
cpu-throttle.c cpu-throttle: Remove timer_mod() from cpu_throttle_set() 2021-02-08 15:15:32 +01:00
cpu-timers.c icount: get rid of static variable 2021-04-01 09:40:45 +02:00
cpus.c util/oslib-posix: Forward SIGBUS to MCE handler under Linux 2022-01-07 19:30:13 -05:00
datadir.c vl: extract softmmu/datadir.c 2020-12-10 12:15:18 -05:00
device_tree.c device_tree: Add qemu_fdt_add_path 2021-10-20 18:17:54 -07:00
dma-helpers.c dma: Let dma_buf_rw() propagate MemTxResult 2021-12-31 01:05:27 +01:00
globals.c qmp: generalize watchdog-set-action to -no-reboot/-no-shutdown 2020-12-15 12:51:57 -05:00
icount.c icount: get rid of static variable 2021-04-01 09:40:45 +02:00
ioport.c softmmu: Add missing trace-events file 2020-09-09 17:15:18 +01:00
main.c meson: move SDL and SDL-image detection to meson 2020-08-21 06:30:44 -04:00
memory.c memory: Introduce replay_discarded callback for RamDiscardManager 2021-11-01 22:56:44 +01:00
memory_mapping.c softmmu/memory_mapping: optimize for RamDiscardManager sections 2021-10-02 08:43:22 +02:00
meson.build seccomp: convert to meson 2021-01-06 10:21:20 +01:00
physmem.c accel/tcg: suppress IRQ check for special TBs 2021-11-29 15:12:37 +00:00
qdev-monitor.c pci,pc,virtio: bugfixes 2021-11-15 21:56:15 +01:00
qemu-seccomp.c seccomp: don't block getters for resource control syscalls 2021-07-14 14:15:52 +01:00
qtest.c qtest: add a QOM object for qtest 2021-05-26 14:49:45 +02:00
rtc.c qom: Allow optional sugar props 2021-02-08 16:57:37 +11:00
runstate-action.c runstate: cleanup reboot and panic actions 2021-01-21 13:00:41 +01:00
runstate.c runstate: Initialize Error * to NULL 2021-06-15 17:17:09 +02:00
timers-state.h qemu/atomic: Add aligned_{int64,uint64}_t types 2021-07-21 07:45:38 -10:00
tpm.c qapi: More complex uses of QAPI_LIST_APPEND 2021-01-28 08:08:45 +01:00
trace-events memory: make global_dirty_tracking a bitmask 2021-11-01 22:56:43 +01:00
trace.h softmmu: Add missing trace-events file 2020-09-09 17:15:18 +01:00
vl.c qemu-options: Remove the deprecated -no-quit option 2022-01-05 11:10:13 +01:00