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[v3,0/6] target/arm: assorted mte fixes

Message ID 20240207025210.8837-1-richard.henderson@linaro.org
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Series target/arm: assorted mte fixes | expand

Message

Richard Henderson Feb. 7, 2024, 2:52 a.m. UTC 
Changes for v3:
  - As if /sys/devices/system/cpu/cpu<N>/mte_tcf_preferred is "sync".
  - Fix do_st_zpa as well as do_ld_zpa.  Oops.

Because of the above, I dropped Gustavo's t-b.


r~


Richard Henderson (6):
  linux-user/aarch64: Choose SYNC as the preferred MTE mode
  target/arm: Fix nregs computation in do_{ld,st}_zpa
  target/arm: Adjust and validate mtedesc sizem1
  target/arm: Split out make_svemte_desc
  target/arm: Handle mte in do_ldrq, do_ldro
  target/arm: Fix SVE/SME gross MTE suppression checks

 linux-user/aarch64/target_prctl.h | 29 ++++++-----
 target/arm/internals.h            |  2 +-
 target/arm/tcg/translate-a64.h    |  2 +
 target/arm/tcg/sme_helper.c       |  8 +--
 target/arm/tcg/sve_helper.c       | 12 ++---
 target/arm/tcg/translate-sme.c    | 15 ++----
 target/arm/tcg/translate-sve.c    | 83 ++++++++++++++++++-------------
 7 files changed, 83 insertions(+), 68 deletions(-)

Comments

Gustavo Romero Feb. 7, 2024, 8:09 p.m. UTC | #1 
Hi Richard,

On 2/6/24 11:52 PM, Richard Henderson wrote:
> Changes for v3:
>    - As if /sys/devices/system/cpu/cpu<N>/mte_tcf_preferred is "sync".
>    - Fix do_st_zpa as well as do_ld_zpa.  Oops.
> 
> Because of the above, I dropped Gustavo's t-b.
> 
> 
> r~
> 
> 
> Richard Henderson (6):
>    linux-user/aarch64: Choose SYNC as the preferred MTE mode
>    target/arm: Fix nregs computation in do_{ld,st}_zpa
>    target/arm: Adjust and validate mtedesc sizem1
>    target/arm: Split out make_svemte_desc
>    target/arm: Handle mte in do_ldrq, do_ldro
>    target/arm: Fix SVE/SME gross MTE suppression checks
> 
>   linux-user/aarch64/target_prctl.h | 29 ++++++-----
>   target/arm/internals.h            |  2 +-
>   target/arm/tcg/translate-a64.h    |  2 +
>   target/arm/tcg/sme_helper.c       |  8 +--
>   target/arm/tcg/sve_helper.c       | 12 ++---
>   target/arm/tcg/translate-sme.c    | 15 ++----
>   target/arm/tcg/translate-sve.c    | 83 ++++++++++++++++++-------------
>   7 files changed, 83 insertions(+), 68 deletions(-)
> 
Since this patchset fixes the "prctl() failed: Invalid argument"
on QEMU user-mode when both flags (ASYNC | SYNC) are passed
to prctl(PR_SET_TAGGED_ADDR_CTRL, ...), I tested it again --
expecting no different result -- so:

Tested-by: Gustavo Romero <gustavo.romero@linaro.org>

If that t-b tag doesn't make sense, feel free to drop it :)

Thanks for fixing it!


Cheers,
Gustavo
Peter Maydell Feb. 8, 2024, 4:27 p.m. UTC | #2 
On Wed, 7 Feb 2024 at 02:52, Richard Henderson
<richard.henderson@linaro.org> wrote:
>
> Changes for v3:
>   - As if /sys/devices/system/cpu/cpu<N>/mte_tcf_preferred is "sync".
>   - Fix do_st_zpa as well as do_ld_zpa.  Oops.
>
> Because of the above, I dropped Gustavo's t-b.
>
>
> r~
>
>
> Richard Henderson (6):
>   linux-user/aarch64: Choose SYNC as the preferred MTE mode
>   target/arm: Fix nregs computation in do_{ld,st}_zpa
>   target/arm: Adjust and validate mtedesc sizem1
>   target/arm: Split out make_svemte_desc
>   target/arm: Handle mte in do_ldrq, do_ldro
>   target/arm: Fix SVE/SME gross MTE suppression checks



Applied to target-arm.next, thanks.

-- PMM