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authorBoris Ostrovsky <boris.ostrovsky@oracle.com>2019-11-12 19:35:06 +0300
committerPaolo Bonzini <pbonzini@redhat.com>2020-01-30 20:45:54 +0300
commit1eff70a9abd46f175defafd29bc17ad456f398a7 (patch)
tree977d32b00d6c75b404fb7b131d89f9e5de9021cd /arch/x86/include
parent8c6de56a42e0c657955e12b882a81ef07d1d073e (diff)
downloadlinux-1eff70a9abd46f175defafd29bc17ad456f398a7.tar.xz
x86/kvm: Introduce kvm_(un)map_gfn()
kvm_vcpu_(un)map operates on gfns from any current address space. In certain cases we want to make sure we are not mapping SMRAM and for that we can use kvm_(un)map_gfn() that we are introducing in this patch. This is part of CVE-2019-3016. Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com> Reviewed-by: Joao Martins <joao.m.martins@oracle.com> Cc: stable@vger.kernel.org Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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