Gavin Shan fe6bda58e0 kvm: Fix crash due to access uninitialized kvm_state ... Runs into core dump on arm64 and the backtrace extracted from the core dump is shown as below. It's caused by accessing uninitialized @kvm_state in kvm_flush_coalesced_mmio_buffer() due to commit 176d073029 ("hw/arm/virt: Use machine_memory_devices_init()"), where the machine's memory region is added earlier than before. main qemu_init configure_accelerators qemu_opts_foreach do_configure_accelerator accel_init_machine kvm_init virt_kvm_type virt_set_memmap machine_memory_devices_init memory_region_add_subregion memory_region_add_subregion_common memory_region_update_container_subregions memory_region_transaction_begin qemu_flush_coalesced_mmio_buffer kvm_flush_coalesced_mmio_buffer Fix it by bailing early in kvm_flush_coalesced_mmio_buffer() on the uninitialized @kvm_state. With this applied, no crash is observed on arm64. Fixes: 176d073029 ("hw/arm/virt: Use machine_memory_devices_init()") Signed-off-by: Gavin Shan <gshan@redhat.com> Reviewed-by: David Hildenbrand <david@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Message-id: 20230731125946.2038742-1-gshan@redhat.com Signed-off-by: Peter Maydell <peter.maydell@linaro.org>		2023-07-31 14:19:43 +01:00
..
hvf	exec/memory: Add symbolic value for memory listener priority for accel	2023-06-28 14:27:59 +02:00
kvm	kvm: Fix crash due to access uninitialized kvm_state	2023-07-31 14:19:43 +01:00
qtest	meson: Replace CONFIG_SOFTMMU -> CONFIG_SYSTEM_ONLY	2023-06-20 10:01:30 +02:00
stubs	accel/kvm: Declare kvm_direct_msi_allowed in stubs	2023-06-28 14:14:22 +02:00
tcg	accel/tcg: Fix type of 'last' for pageflags_{find,next}	2023-07-24 09:48:49 +01:00
xen	accel/xen: Fix DM state change notification in dm_restrict mode	2023-03-23 09:56:54 +00:00
accel-blocker.c	accel: introduce accelerator blocker API	2023-01-11 09:59:39 +01:00
accel-common.c
accel-softmmu.c	*: Add missing includes of qemu/error-report.h	2023-03-22 15:06:57 +00:00
accel-softmmu.h
accel-user.c
dummy-cpus.c	accel/qtest: Support qtest accelerator for Windows	2022-10-28 11:17:12 +02:00
Kconfig
meson.build	meson: Replace softmmu_ss -> system_ss	2023-06-20 10:01:30 +02:00