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Documentation: virtual: kvm: correct one bit description in APF case 

When commit 6adba52742 (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>
hifive-unleashed-5.1
Tiejun Chen 2014-10-11 09:19:54 +08:00 committed by Paolo Bonzini
parent 16f8a6f979
commit 91690bf32e
1 changed files with 1 additions and 1 deletions
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Documentation/virtual/kvm/msr.txt
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@ -168,7 +168,7 @@ MSR_KVM_ASYNC_PF_EN: 0x4b564d02
64 byte memory area which must be in guest RAM and must be
zeroed. Bits 5-2 are reserved and should be zero. Bit 0 is 1
when asynchronous page faults are enabled on the vcpu 0 when
disabled. Bit 2 is 1 if asynchronous page faults can be injected
disabled. Bit 1 is 1 if asynchronous page faults can be injected
when vcpu is in cpl == 0.
First 4 byte of 64 byte memory location will be written to by