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| author | Avi Kivity <avi@redhat.com> | 2010-01-20 12:01:20 +0200 |
|---|---|---|
| committer | Avi Kivity <avi@redhat.com> | 2011-05-11 07:56:58 -0400 |
| commit | cef4dea07f6720b36cc93e18a2e68be4bdb71a92 (patch) | |
| tree | f6c67df1a54a2770d23086446807ca62f964c2e1 /arch/x86/include/asm/kvm_host.h | |
| parent | 5287f194bf0d7062d6d99b725366202556f03e28 (diff) | |
| download | blackbird-op-linux-cef4dea07f6720b36cc93e18a2e68be4bdb71a92.tar.gz blackbird-op-linux-cef4dea07f6720b36cc93e18a2e68be4bdb71a92.zip | |
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>
Diffstat (limited to 'arch/x86/include/asm/kvm_host.h')
| -rw-r--r-- | arch/x86/include/asm/kvm_host.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h index 35f81b110260..e820c6339b8b 100644 --- a/arch/x86/include/asm/kvm_host.h +++ b/arch/x86/include/asm/kvm_host.h @@ -30,6 +30,7 @@ #define KVM_MEMORY_SLOTS 32 /* memory slots that does not exposed to userspace */ #define KVM_PRIVATE_MEM_SLOTS 4 +#define KVM_MMIO_SIZE 16 #define KVM_PIO_PAGE_OFFSET 1 #define KVM_COALESCED_MMIO_PAGE_OFFSET 2 |
