KVM: 16-byte mmio support

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Since sse instructions can issue 16-byte mmios, we need to support them.  We
can't increase the kvm_run mmio buffer size to 16 bytes without breaking
compatibility, so instead we break the large mmios into two smaller 8-byte
ones.  Since the bus is 64-bit we aren't breaking any atomicity guarantees.

Signed-off-by: Avi Kivity <avi@redhat.com>

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This commit is contained in:

Avi Kivity 2010-01-20 12:01:20 +02:00

parent 5287f194bf

commit cef4dea07f

3 changed files with 32 additions and 10 deletions

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1

arch/x86/include/asm/kvm_host.h

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34

arch/x86/kvm/x86.c

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7

include/linux/kvm_host.h

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