On Mon, Jan 12, 2026 at 05:45:33PM +0000, Kevin Cheng wrote:
> INVLPGA should cause a #UD when EFER.SVME is not set. Add a check to
> properly inject #UD when EFER.SVME=0.
>
> Signed-off-by: Kevin Cheng <chengkev@google.com>
Reviewed-by: Yosry Ahmed <yosry.ahmed@linux.dev>
> ---
> arch/x86/kvm/svm/svm.c | 3 +++
> 1 file changed, 3 insertions(+)
>
> diff --git a/arch/x86/kvm/svm/svm.c b/arch/x86/kvm/svm/svm.c
> index 557c84a060fc6..92a2faff1ccc8 100644
> --- a/arch/x86/kvm/svm/svm.c
> +++ b/arch/x86/kvm/svm/svm.c
> @@ -2306,6 +2306,9 @@ static int invlpga_interception(struct kvm_vcpu *vcpu)
> gva_t gva = kvm_rax_read(vcpu);
> u32 asid = kvm_rcx_read(vcpu);
>
> + if (nested_svm_check_permissions(vcpu))
> + return 1;
> +
> /* FIXME: Handle an address size prefix. */
> if (!is_long_mode(vcpu))
> gva = (u32)gva;
> --
> 2.52.0.457.g6b5491de43-goog
>