tree 3a8901d55ac71cc4af0a2e671d48929f64db7df2
parent 548f7fb22234c6fe13c64459059fbd42058953c4
author KarimAllah Ahmed <karahmed@amazon.de> 1562749993 +0200
committer Paolo Bonzini <pbonzini@redhat.com> 1562768739 +0200

KVM: Properly check if "page" is valid in kvm_vcpu_unmap

The field "page" is initialized to KVM_UNMAPPED_PAGE when it is not used
(i.e. when the memory lives outside kernel control). So this check will
always end up using kunmap even for memremap regions.

Fixes: e45adf665a53 ("KVM: Introduce a new guest mapping API")
Cc: stable@vger.kernel.org
Signed-off-by: KarimAllah Ahmed <karahmed@amazon.de>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>