KVM: 16-byte mmio support
authorAvi Kivity <avi@redhat.com>
Wed, 20 Jan 2010 10:01:20 +0000 (12:01 +0200)
committerAvi Kivity <avi@redhat.com>
Wed, 11 May 2011 11:56:58 +0000 (07:56 -0400)
commitcef4dea07f6720b36cc93e18a2e68be4bdb71a92
treef6c67df1a54a2770d23086446807ca62f964c2e1
parent5287f194bf0d7062d6d99b725366202556f03e28
KVM: 16-byte mmio support

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>
arch/x86/include/asm/kvm_host.h
arch/x86/kvm/x86.c
include/linux/kvm_host.h