KVM: nVMX: Apply addr size mask to effective address for VMX instructions

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The address size of an instruction affects the effective address, not
the virtual/linear address.  The final address may still be truncated,
e.g. to 32-bits outside of long mode, but that happens irrespective of
the address size, e.g. a 32-bit address size can yield a 64-bit virtual
address when using FS/GS with a non-zero base.

Fixes: 064aea7747 ("KVM: nVMX: Decoding memory operands of VMX instructions")
Cc: stable@vger.kernel.org
Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

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Sean Christopherson 2019-01-23 14:39:24 -08:00 • committed by Paolo Bonzini

parent 946c522b60

commit 8570f9e881

1 changed files with 23 additions and 2 deletions

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arch/x86/kvm/vmx/nested.c

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