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Filename Latest commit message Latest commit date
Radim Krčmář fe2a3027e7 KVM: x86: fix backward migration with async_PF 
Guests on new hypersiors might set KVM_ASYNC_PF_DELIVERY_AS_PF_VMEXIT
bit when enabling async_PF, but this bit is reserved on old hypervisors,
which results in a failure upon migration.

To avoid breaking different cases, we are checking for CPUID feature bit
before enabling the feature and nothing else.

Fixes: 52a5c155cf ("KVM: async_pf: Let guest support delivery of async_pf from guest mode")
Cc: <stable@vger.kernel.org>
Reviewed-by: Wanpeng Li <wanpengli@tencent.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2018-02-24 01:43:48 +01:00
..
kvm KVM: x86: fix backward migration with async_PF 2018-02-24 01:43:48 +01:00
uml Documentation: Update path to sysrq.txt 2017-03-03 15:48:38 -07:00
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paravirt_ops.txt