Re: [PATCH v7 2/8] KVM: nSVM: Synthesize DecodeAssists EXITINFO for emulated intercepts

[Jim Mattson]

On Fri, Sep 18, 2026 at 1:56 AM Tina Zhang <zhang_wei@xxxxxxxxxxxxxx> wrote:
>
> When the x86 emulator encounters an instruction intercepted by L1,
> svm_check_intercept() synthesizes a nested VM-Exit without fresh hardware
> DecodeAssist state.  Populate the architectural EXITINFO1 field when
> DecodeAssists is exposed to L1.
>
> Provide the GPR number for MOV CR/DR, the interrupt vector for INTn, and
> the linear address for INVLPG.  Preserve the MOV-to-CR0 decode information
> when a selective CR0 write intercept is triggered.  Leave EXITINFO1 clear
> for CLTS, LMSW, SMSW, and INVLPGA; the INVLPGA address remains in guest
> rAX.  Leave EXITINFO1 unchanged when DecodeAssists is not exposed, and
> leave unrelated intercepts unchanged.
>
> Signed-off-by: Tina Zhang <zhang_wei@xxxxxxxxxxxxxx>

I think Sashiko is hallucinating.

Reviewed-by: Jim Mattson <jmattson@xxxxxxxxxx>