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(parent: 8c6de56) | patch
x86/kvm: Introduce kvm_(un)map_gfn()
authorBoris Ostrovsky <boris.ostrovsky@oracle.com>
Tue, 12 Nov 2019 16:35:06 +0000 (16:35 +0000)
committerPaolo Bonzini <pbonzini@redhat.com>
Thu, 30 Jan 2020 17:45:54 +0000 (18:45 +0100)
commit1eff70a9abd46f175defafd29bc17ad456f398a7
tree977d32b00d6c75b404fb7b131d89f9e5de9021cdtree | snapshot
parent8c6de56a42e0c657955e12b882a81ef07d1d073ecommit | diff
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>
include/linux/kvm_host.h diff | blob | history
virt/kvm/kvm_main.c diff | blob | history
Domain: System / Kernel;