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SubjectRe: [PATCH 5/7] KVM: MMU: document fast page fault in
On 06/19/2013 08:13 PM, Paolo Bonzini wrote:
> Il 19/06/2013 11:09, Xiao Guangrong ha scritto:
>> Document fast page fault to Documentation/virtual/kvm/mmu.txt
>>
>> Signed-off-by: Xiao Guangrong <xiaoguangrong@linux.vnet.ibm.com>
>> ---
>> Documentation/virtual/kvm/mmu.txt | 3 +++
>> 1 file changed, 3 insertions(+)
>>
>> diff --git a/Documentation/virtual/kvm/mmu.txt b/Documentation/virtual/kvm/mmu.txt
>> index 4fb442b..b5ce7dd 100644
>> --- a/Documentation/virtual/kvm/mmu.txt
>> +++ b/Documentation/virtual/kvm/mmu.txt
>> @@ -275,6 +275,9 @@ Handling a page fault is performed as follows:
>> information is stored and cache the information to vcpu->arch.mmio_gva,
>> vcpu->arch.access and vcpu->arch.mmio_gfn then call the emulator to emulate
>> the instruction who will get the benefit from the cached mmio info
>> + - If both P bit and R/W bit of error code are set, there has a chance to
>> + fast fix the page fault, please see the description of "Fast page fault" in
>> + Documentation/virtual/kvm/locking.txt

Nice.



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