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(parent: 527937d) | patch
kvm: nVMX: Enforce cpl=0 for VMX instructions
authorFelix Wilhelm <fwilhelm@google.com>
Mon, 11 Jun 2018 07:43:44 +0000 (09:43 +0200)
committerPaolo Bonzini <pbonzini@redhat.com>
Tue, 12 Jun 2018 13:06:06 +0000 (15:06 +0200)
commitc9fe7195018526d21b1e042c82ba4c4f43230491
treeb7573effd1110a11aac720cc38407bfdb45f651ftree | snapshot
parent527937d09775f55f49fce58feecd838e9b7a2e7dcommit | diff
kvm: nVMX: Enforce cpl=0 for VMX instructions

VMX instructions executed inside a L1 VM will always trigger a VM exit
even when executed with cpl 3. This means we must perform the
privilege check in software.

Fixes: 0025faf79e9a("kvm: nVMX: Remove superfluous VMX instruction fault checks")
Cc: stable@vger.kernel.org
Signed-off-by: Felix Wilhelm <fwilhelm@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
arch/x86/kvm/vmx.c diff | blob | history
Linux Kernel Source Tree.