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db812c4073
qemu/hw/virtio
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Paolo Bonzini db812c4073 virtio: update MemoryRegionCaches when guest negotiates features 
Because the cache is sized to include the rings and the event indices,
negotiating the VIRTIO_RING_F_EVENT_IDX feature will result in the size
of the cache changing.  And because MemoryRegionCache accesses are
range-checked, if we skip this we end up with an assertion failure.
This happens with OpenBSD 6.3.

Reported-by: Fam Zheng <famz@redhat.com>
Fixes: 97cd965c07
Cc: qemu-stable@nongnu.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Tested-by: Fam Zheng <famz@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2018-09-07 17:05:18 -04:00
..
Makefile.objs hw: make virtio devices configurable via default-configs/ 2018-06-01 15:14:31 +02:00
trace-events vhost: add trace for IOTLB miss 2018-05-23 03:14:41 +03:00
vhost-backend.c vhost: fix a memory leak 2017-08-02 00:13:25 +03:00
vhost-stub.c vhost-user: introduce shared vhost-user state 2018-05-24 21:14:11 +03:00
vhost-user.c vhost-user: support registering external host notifiers 2018-05-24 21:14:11 +03:00
vhost-vsock.c hw: use "qemu/osdep.h" as first #include in source files 2017-12-18 17:07:02 +03:00
vhost.c vhost: check region type before casting 2018-08-03 11:35:21 +03:00
virtio-balloon.c kvm: Use inhibit to prevent ballooning without synchronous mmu 2018-08-17 09:27:15 -06:00
virtio-bus.c virtio: remove event notifier cleanup call on de-assign 2018-02-08 21:06:26 +02:00
virtio-crypto-pci.c virtio-crypto: Convert to DEFINE_PROP_LINK 2017-07-14 12:04:43 +02:00
virtio-crypto.c cryptodev: add vhost support 2018-03-01 18:26:17 +02:00
virtio-mmio.c virtio-mmio: switch to linux headers 2017-01-18 22:59:53 +02:00
virtio-pci.c hw: Do not include "sysemu/block-backend.h" if it is not necessary 2018-06-01 14:15:10 +02:00
virtio-pci.h vhost-user-blk: introduce a new vhost-user-blk host device 2018-01-18 21:52:37 +02:00
virtio-rng.c virtio-rng: process pending requests on DRIVER_OK 2018-06-28 04:46:16 +03:00
virtio.c virtio: update MemoryRegionCaches when guest negotiates features 2018-09-07 17:05:18 -04:00