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SubjectRe: [PATCH] kvm: Add emulation for movups/movupd
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On 01/04/2018 17:54, Stefan Fritsch wrote:
> This is very similar to the aligned versions movaps/movapd.
>
> We have seen the corresponding emulation failures with openbsd as guest
> and with Windows 10 with intel HD graphics pass through.
>
> Signed-off-by: Christian Ehrhardt <christian_ehrhardt@genua.de>
> Signed-off-by: Stefan Fritsch <sf@sfritsch.de>
> ---
> arch/x86/kvm/emulate.c | 8 +++++++-
> 1 file changed, 7 insertions(+), 1 deletion(-)
>
> diff --git a/arch/x86/kvm/emulate.c b/arch/x86/kvm/emulate.c
> index d91eaeb01034..7dda8e38c19a 100644
> --- a/arch/x86/kvm/emulate.c
> +++ b/arch/x86/kvm/emulate.c
> @@ -4498,6 +4498,10 @@ static const struct gprefix pfx_0f_2b = {
> ID(0, &instr_dual_0f_2b), ID(0, &instr_dual_0f_2b), N, N,
> };
>
> +static const struct gprefix pfx_0f_10_0f_11 = {
> + I(Unaligned, em_mov), I(Unaligned, em_mov), N, N,
> +};
> +
> static const struct gprefix pfx_0f_28_0f_29 = {
> I(Aligned, em_mov), I(Aligned, em_mov), N, N,
> };
> @@ -4709,7 +4713,9 @@ static const struct opcode twobyte_table[256] = {
> DI(ImplicitOps | Priv, invd), DI(ImplicitOps | Priv, wbinvd), N, N,
> N, D(ImplicitOps | ModRM | SrcMem | NoAccess), N, N,
> /* 0x10 - 0x1F */
> - N, N, N, N, N, N, N, N,
> + GP(ModRM | DstReg | SrcMem | Mov | Sse, &pfx_0f_10_0f_11),
> + GP(ModRM | DstMem | SrcReg | Mov | Sse, &pfx_0f_10_0f_11),
> + N, N, N, N, N, N,
> D(ImplicitOps | ModRM | SrcMem | NoAccess),
> N, N, N, N, N, N, D(ImplicitOps | ModRM | SrcMem | NoAccess),
> /* 0x20 - 0x2F */
>

Applied, thanks.

Paolo

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