From: Avi Kivity <avi@qumranet.com>
Date: Tue, 29 Jul 2008 08:30:57 +0000 (+0300)
Subject: KVM: Advertise synchronized mmu support to userspace
X-Git-Tag: v2.6.27-rc2~84^2~1
X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=ed8486243379ef3e6c61363df915882945c0eaec;p=linux-2.6

KVM: Advertise synchronized mmu support to userspace

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

diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index c7b01efe06..0d682fc6ae 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 0ea064cbfb..69511f74f9 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