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authorTiejun Chen <tiejun.chen@intel.com>2014-10-10 21:19:54 -0400
committerPaolo Bonzini <pbonzini@redhat.com>2014-11-03 06:07:27 -0500
commit91690bf32ee12a85caf497ec01cfb47c0b298bac (patch)
tree1522322ff6252ece816cce64ee5d01058cd7036c /Documentation
parent16f8a6f9798ab9a1fd593b06b78925d02525ab81 (diff)
Documentation: virtual: kvm: correct one bit description in APF case
When commit 6adba5274206 (KVM: Let host know whether the guest can handle async PF in non-userspace context.) is introduced, actually bit 2 still is reserved and should be zero. Instead, bit 1 is 1 to indicate if asynchronous page faults can be injected when vcpu is in cpl == 0, and also please see this, in the file kvm_para.h, #define KVM_ASYNC_PF_SEND_ALWAYS (1 << 1). Signed-off-by: Tiejun Chen <tiejun.chen@intel.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/virtual/kvm/msr.txt2
1 files changed, 1 insertions, 1 deletions
diff --git a/Documentation/virtual/kvm/msr.txt b/Documentation/virtual/kvm/msr.txt
index 6d470ae7b073..2a71c8f29f68 100644
--- a/Documentation/virtual/kvm/msr.txt
+++ b/Documentation/virtual/kvm/msr.txt
@@ -168,7 +168,7 @@ MSR_KVM_ASYNC_PF_EN: 0x4b564d02
168 64 byte memory area which must be in guest RAM and must be 168 64 byte memory area which must be in guest RAM and must be
169 zeroed. Bits 5-2 are reserved and should be zero. Bit 0 is 1 169 zeroed. Bits 5-2 are reserved and should be zero. Bit 0 is 1
170 when asynchronous page faults are enabled on the vcpu 0 when 170 when asynchronous page faults are enabled on the vcpu 0 when
171 disabled. Bit 2 is 1 if asynchronous page faults can be injected 171 disabled. Bit 1 is 1 if asynchronous page faults can be injected
172 when vcpu is in cpl == 0. 172 when vcpu is in cpl == 0.
173 173
174 First 4 byte of 64 byte memory location will be written to by 174 First 4 byte of 64 byte memory location will be written to by