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authorMarcelo Tosatti <mtosatti@redhat.com>2008-02-22 12:21:36 -0500
committerAvi Kivity <avi@qumranet.com>2008-04-27 05:00:24 -0400
commita28e4f5a621289fe0d9c8a461b0c256f9e17f3bc (patch)
treedfa62426cf55dfb2fad66e924eab34e9840bff12 /include/asm-x86/kvm_para.h
parent308b0f239e8d6754b8b903d279e5b5b987e257ac (diff)
KVM: add basic paravirt support
Add basic KVM paravirt support. Avoid vm-exits on IO delays. Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com> Signed-off-by: Avi Kivity <avi@qumranet.com>
Diffstat (limited to 'include/asm-x86/kvm_para.h')
-rw-r--r--include/asm-x86/kvm_para.h3
1 files changed, 2 insertions, 1 deletions
diff --git a/include/asm-x86/kvm_para.h b/include/asm-x86/kvm_para.h
index 5ab7d3dbd357..ed5df3a54aab 100644
--- a/include/asm-x86/kvm_para.h
+++ b/include/asm-x86/kvm_para.h
@@ -10,7 +10,8 @@
10 * paravirtualization, the appropriate feature bit should be checked. 10 * paravirtualization, the appropriate feature bit should be checked.
11 */ 11 */
12#define KVM_CPUID_FEATURES 0x40000001 12#define KVM_CPUID_FEATURES 0x40000001
13#define KVM_FEATURE_CLOCKSOURCE 0 13#define KVM_FEATURE_CLOCKSOURCE 0
14#define KVM_FEATURE_NOP_IO_DELAY 1
14 15
15#define MSR_KVM_WALL_CLOCK 0x11 16#define MSR_KVM_WALL_CLOCK 0x11
16#define MSR_KVM_SYSTEM_TIME 0x12 17#define MSR_KVM_SYSTEM_TIME 0x12