[PULL 0/1] late tcg fix

[PULL 0/1] late tcg fix

[Richard Henderson]

The following changes since commit bb5f142cb320d45d3d8dee2c82dae003cad39da8:

  Merge tag 'pull-riscv-to-apply-20230811-3' of https://github.com/alistair23/qemu into staging (2023-08-11 14:47:23 -0700)

are available in the Git repository at:

  https://gitlab.com/rth7680/qemu.git tags/pull-tcg-20230814

for you to fetch changes up to d3b41127c205062ca6c29c89c9542c4112c39ca0:

  tcg/i386: Output %gs prefix in tcg_out_vex_opc (2023-08-12 08:51:12 -0700)

----------------------------------------------------------------
tcg/i386: Output %gs prefix in tcg_out_vex_opc

----------------------------------------------------------------
Richard Henderson (1):
      tcg/i386: Output %gs prefix in tcg_out_vex_opc

 tcg/i386/tcg-target.c.inc | 3 +++
 1 file changed, 3 insertions(+)

[PULL 1/1] tcg/i386: Output %gs prefix in tcg_out_vex_opc

[Richard Henderson]

Missing the segment prefix means that user-only fails
to add guest_base for some 128-bit load/store.

Fixes: 098d0fc10d2 ("tcg/i386: Support 128-bit load/store")
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/1763
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
 tcg/i386/tcg-target.c.inc | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/tcg/i386/tcg-target.c.inc b/tcg/i386/tcg-target.c.inc
index 77482da070..a6b2eae995 100644
--- a/tcg/i386/tcg-target.c.inc
+++ b/tcg/i386/tcg-target.c.inc
@@ -595,6 +595,9 @@ static void tcg_out_vex_opc(TCGContext *s, int opc, int r, int v,
 {
     int tmp;
 
+    if (opc & P_GS) {
+        tcg_out8(s, 0x65);
+    }
     /* Use the two byte form if possible, which cannot encode
        VEX.W, VEX.B, VEX.X, or an m-mmmm field other than P_EXT.  */
     if ((opc & (P_EXT | P_EXT38 | P_EXT3A | P_VEXW)) == P_EXT
-- 
2.34.1

Re: [PULL 0/1] late tcg fix

[Richard Henderson]

On 8/14/23 19:10, Richard Henderson wrote:
> The following changes since commit bb5f142cb320d45d3d8dee2c82dae003cad39da8:
> 
>    Merge tag 'pull-riscv-to-apply-20230811-3' of https://github.com/alistair23/qemu into staging (2023-08-11 14:47:23 -0700)
> 
> are available in the Git repository at:
> 
>    https://gitlab.com/rth7680/qemu.git tags/pull-tcg-20230814
> 
> for you to fetch changes up to d3b41127c205062ca6c29c89c9542c4112c39ca0:
> 
>    tcg/i386: Output %gs prefix in tcg_out_vex_opc (2023-08-12 08:51:12 -0700)
> 
> ----------------------------------------------------------------
> tcg/i386: Output %gs prefix in tcg_out_vex_opc
> 
> ----------------------------------------------------------------
> Richard Henderson (1):
>        tcg/i386: Output %gs prefix in tcg_out_vex_opc
> 
>   tcg/i386/tcg-target.c.inc | 3 +++
>   1 file changed, 3 insertions(+)

Applied, thanks.  Please update https://wiki.qemu.org/ChangeLog/8.1 as appropriate.


r~