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OpenCloudOS-Kernel
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Author SHA1 Message Date
Gleb Natapov 6adba52742 KVM: Let host know whether the guest can handle async PF in non-userspace context. 
If guest can detect that it runs in non-preemptable context it can
handle async PFs at any time, so let host know that it can send async
PF even if guest cpu is not in userspace.

Acked-by: Rik van Riel <riel@redhat.com>
Signed-off-by: Gleb Natapov <gleb@redhat.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
 2011-01-12 11:23:21 +02:00
Gleb Natapov 344d9588a9 KVM: Add PV MSR to enable asynchronous page faults delivery. 
Guest enables async PF vcpu functionality using this MSR.

Reviewed-by: Rik van Riel <riel@redhat.com>
Signed-off-by: Gleb Natapov <gleb@redhat.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
 2011-01-12 11:23:12 +02:00
Glauber Costa d2d7a61127 KVM: Add Documentation/kvm/msr.txt 
This patch adds a file that documents the usage of KVM-specific
MSRs.

Signed-off-by: Glauber Costa <glommer@redhat.com>
Reviewed-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
 2010-08-01 10:39:24 +03:00