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From: Peter Maydell <peter.maydell@linaro.org>
To: Richard Henderson <richard.henderson@linaro.org>
Cc: qemu-devel@nongnu.org, qemu-arm@nongnu.org
Subject: Re: [PATCH v4 41/45] target/arm: Enable FEAT_CSV2_2 for -cpu max
Date: Tue, 3 May 2022 18:10:57 +0100	[thread overview]
Message-ID: <CAFEAcA9fWYT-2RucwzmrNhMxsUqu3zd338aBTGv7-tFraRVrAg@mail.gmail.com> (raw)
In-Reply-To: <20220501055028.646596-42-richard.henderson@linaro.org>

On Sun, 1 May 2022 at 08:16, Richard Henderson
<richard.henderson@linaro.org> wrote:
>
> There is no branch prediction in TCG, therefore there is no
> need to actually include the context number into the predictor.
> Therefore all we need to do is add the state for SCXTNUM_ELx.
>
> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
> ---
> v2: Update emulation.rst; clear CSV2_FRAC; use decimal; tidy access_scxtnum.
> v3: Rely on EL3-no-EL2 squashing during registration.
> ---
>  docs/system/arm/emulation.rst |  3 ++
>  target/arm/cpu.h              | 16 +++++++++
>  target/arm/cpu64.c            |  3 +-
>  target/arm/helper.c           | 61 ++++++++++++++++++++++++++++++++++-
>  4 files changed, 81 insertions(+), 2 deletions(-)

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>

(The handling of SCXTNUM_EL0 should Just Work for user-mode-only,
right?)

thanks
-- PMM


  reply	other threads:[~2022-05-03 17:13 UTC|newest]

Thread overview: 67+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-05-01  5:49 [PATCH v4 00/45] target/arm: Cleanups, new features, new cpus Richard Henderson
2022-05-01  5:49 ` [PATCH v4 01/45] target/arm: Split out cpregs.h Richard Henderson
2022-05-01  5:49 ` [PATCH v4 02/45] target/arm: Reorg CPAccessResult and access_check_cp_reg Richard Henderson
2022-05-01  5:49 ` [PATCH v4 03/45] target/arm: Replace sentinels with ARRAY_SIZE in cpregs.h Richard Henderson
2022-05-01  5:49 ` [PATCH v4 04/45] target/arm: Make some more cpreg data static const Richard Henderson
2022-05-01  5:49 ` [PATCH v4 05/45] target/arm: Reorg ARMCPRegInfo type field bits Richard Henderson
2022-05-03 15:58   ` Peter Maydell
2022-05-01  5:49 ` [PATCH v4 06/45] target/arm: Avoid bare abort() or assert(0) Richard Henderson
2022-05-01 10:47   ` Peter Maydell
2022-05-01  5:49 ` [PATCH v4 07/45] target/arm: Change cpreg access permissions to enum Richard Henderson
2022-05-01  5:49 ` [PATCH v4 08/45] target/arm: Name CPState type Richard Henderson
2022-05-01  5:49 ` [PATCH v4 09/45] target/arm: Name CPSecureState type Richard Henderson
2022-05-01  5:49 ` [PATCH v4 10/45] target/arm: Drop always-true test in define_arm_vh_e2h_redirects_aliases Richard Henderson
2022-05-03 15:59   ` Peter Maydell
2022-05-01  5:49 ` [PATCH v4 11/45] target/arm: Store cpregs key in the hash table directly Richard Henderson
2022-05-03 16:02   ` Peter Maydell
2022-05-01  5:49 ` [PATCH v4 12/45] target/arm: Merge allocation of the cpreg and its name Richard Henderson
2022-05-03 16:07   ` Peter Maydell
2022-05-01  5:49 ` [PATCH v4 13/45] target/arm: Hoist computation of key in add_cpreg_to_hashtable Richard Henderson
2022-05-03 16:13   ` Peter Maydell
2022-05-01  5:49 ` [PATCH v4 14/45] target/arm: Consolidate cpreg updates " Richard Henderson
2022-05-03 16:15   ` Peter Maydell
2022-05-01  5:49 ` [PATCH v4 15/45] target/arm: Use bool for is64 and ns " Richard Henderson
2022-05-03 16:15   ` Peter Maydell
2022-05-01  5:49 ` [PATCH v4 16/45] target/arm: Hoist isbanked computation " Richard Henderson
2022-05-03 16:16   ` Peter Maydell
2022-05-01  5:49 ` [PATCH v4 17/45] target/arm: Perform override check early " Richard Henderson
2022-05-03 16:21   ` Peter Maydell
2022-05-01  5:50 ` [PATCH v4 18/45] target/arm: Reformat comments " Richard Henderson
2022-05-03 16:22   ` Peter Maydell
2022-05-01  5:50 ` [PATCH v4 19/45] target/arm: Remove HOST_BIG_ENDIAN ifdef " Richard Henderson
2022-05-03 16:25   ` Peter Maydell
2022-05-01  5:50 ` [PATCH v4 20/45] target/arm: Handle cpreg registration for missing EL Richard Henderson
2022-05-03 16:34   ` Peter Maydell
2022-05-03 16:45     ` Richard Henderson
2022-05-03 16:50       ` Peter Maydell
2022-05-01  5:50 ` [PATCH v4 21/45] target/arm: Drop EL3 no EL2 fallbacks Richard Henderson
2022-05-03 17:13   ` Peter Maydell
2022-05-01  5:50 ` [PATCH v4 22/45] target/arm: Merge zcr reginfo Richard Henderson
2022-05-03 17:12   ` Peter Maydell
2022-05-01  5:50 ` [PATCH v4 23/45] target/arm: Add isar predicates for FEAT_Debugv8p2 Richard Henderson
2022-05-01  5:50 ` [PATCH v4 24/45] target/arm: Adjust definition of CONTEXTIDR_EL2 Richard Henderson
2022-05-01  5:50 ` [PATCH v4 25/45] target/arm: Move cortex impdef sysregs to cpu_tcg.c Richard Henderson
2022-05-01  5:50 ` [PATCH v4 26/45] target/arm: Update qemu-system-arm -cpu max to cortex-a57 Richard Henderson
2022-05-01  5:50 ` [PATCH v4 27/45] target/arm: Set ID_DFR0.PerfMon for qemu-system-arm -cpu max Richard Henderson
2022-05-01  5:50 ` [PATCH v4 28/45] target/arm: Split out aa32_max_features Richard Henderson
2022-05-01  5:50 ` [PATCH v4 29/45] target/arm: Annotate arm_max_initfn with FEAT identifiers Richard Henderson
2022-05-01  5:50 ` [PATCH v4 30/45] target/arm: Use field names for manipulating EL2 and EL3 modes Richard Henderson
2022-05-01  5:50 ` [PATCH v4 31/45] target/arm: Enable FEAT_Debugv8p2 for -cpu max Richard Henderson
2022-05-01  5:50 ` [PATCH v4 32/45] target/arm: Enable FEAT_Debugv8p4 " Richard Henderson
2022-05-01  5:50 ` [PATCH v4 33/45] target/arm: Add isar_feature_{aa64,any}_ras Richard Henderson
2022-05-01  5:50 ` [PATCH v4 34/45] target/arm: Add minimal RAS registers Richard Henderson
2022-05-03 16:58   ` Peter Maydell
2022-05-01  5:50 ` [PATCH v4 35/45] target/arm: Enable SCR and HCR bits for RAS Richard Henderson
2022-05-01  5:50 ` [PATCH v4 36/45] target/arm: Implement virtual SError exceptions Richard Henderson
2022-05-01  5:50 ` [PATCH v4 37/45] target/arm: Implement ESB instruction Richard Henderson
2022-05-01  5:50 ` [PATCH v4 38/45] target/arm: Enable FEAT_RAS for -cpu max Richard Henderson
2022-05-01  5:50 ` [PATCH v4 39/45] target/arm: Enable FEAT_IESB " Richard Henderson
2022-05-01  5:50 ` [PATCH v4 40/45] target/arm: Enable FEAT_CSV2 " Richard Henderson
2022-05-01  5:50 ` [PATCH v4 41/45] target/arm: Enable FEAT_CSV2_2 " Richard Henderson
2022-05-03 17:10   ` Peter Maydell [this message]
2022-05-03 19:33     ` Richard Henderson
2022-05-01  5:50 ` [PATCH v4 42/45] target/arm: Enable FEAT_CSV3 " Richard Henderson
2022-05-01  5:50 ` [PATCH v4 43/45] target/arm: Enable FEAT_DGH " Richard Henderson
2022-05-01  5:50 ` [PATCH v4 44/45] target/arm: Define cortex-a76 Richard Henderson
2022-05-01  5:50 ` [PATCH v4 45/45] target/arm: Define neoverse-n1 Richard Henderson
2022-05-03 16:47 ` [PATCH v4 00/45] target/arm: Cleanups, new features, new cpus Peter Maydell

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