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authorAvi Kivity <avi@qumranet.com>2008-07-29 11:30:57 +0300
committerAvi Kivity <avi@qumranet.com>2008-07-29 12:34:02 +0300
commited8486243379ef3e6c61363df915882945c0eaec (patch)
tree5504b545fc236d192be34a4a68de7b74c64f70e9
parente930bffe95e1e886a1ede80726ea38df5838d067 (diff)
KVM: Advertise synchronized mmu support to userspace
Signed-off-by: Avi Kivity <avi@qumranet.com>
-rw-r--r--arch/x86/kvm/x86.c1
-rw-r--r--include/linux/kvm.h1
2 files changed, 2 insertions, 0 deletions
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index c7b01efe064..0d682fc6aeb 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -883,6 +883,7 @@ int kvm_dev_ioctl_check_extension(long ext)
case KVM_CAP_PIT:
case KVM_CAP_NOP_IO_DELAY:
case KVM_CAP_MP_STATE:
+ case KVM_CAP_SYNC_MMU:
r = 1;
break;
case KVM_CAP_COALESCED_MMIO:
diff --git a/include/linux/kvm.h b/include/linux/kvm.h
index 0ea064cbfbc..69511f74f91 100644
--- a/include/linux/kvm.h
+++ b/include/linux/kvm.h
@@ -371,6 +371,7 @@ struct kvm_trace_rec {
#define KVM_CAP_PV_MMU 13
#define KVM_CAP_MP_STATE 14
#define KVM_CAP_COALESCED_MMIO 15
+#define KVM_CAP_SYNC_MMU 16 /* Changes to host mmap are reflected in guest */
/*
* ioctls for VM fds