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[PATCH v4 27/45] target/arm: Set ID_DFR0.PerfMon for qemu-system-arm -cp
From: |
Richard Henderson |
Subject: |
[PATCH v4 27/45] target/arm: Set ID_DFR0.PerfMon for qemu-system-arm -cpu max |
Date: |
Sat, 30 Apr 2022 22:50:09 -0700 |
We set this for qemu-system-aarch64, but failed to do so
for the strictly 32-bit emulation.
Fixes: 3bec78447a9 ("target/arm: Provide ARMv8.4-PMU in '-cpu max'")
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
target/arm/cpu_tcg.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/target/arm/cpu_tcg.c b/target/arm/cpu_tcg.c
index f9094c1752..9aa2f737c1 100644
--- a/target/arm/cpu_tcg.c
+++ b/target/arm/cpu_tcg.c
@@ -1084,6 +1084,10 @@ static void arm_max_initfn(Object *obj)
t = FIELD_DP32(t, ID_PFR2, SSBS, 1);
cpu->isar.id_pfr2 = t;
+ t = cpu->isar.id_dfr0;
+ t = FIELD_DP32(t, ID_DFR0, PERFMON, 5); /* v8.4-PMU */
+ cpu->isar.id_dfr0 = t;
+
#ifdef CONFIG_USER_ONLY
/*
* Break with true ARMv8 and add back old-style VFP short-vector support.
--
2.34.1
- Re: [PATCH v4 12/45] target/arm: Merge allocation of the cpreg and its name, (continued)
- [PATCH v4 14/45] target/arm: Consolidate cpreg updates in add_cpreg_to_hashtable, Richard Henderson, 2022/05/01
- [PATCH v4 18/45] target/arm: Reformat comments in add_cpreg_to_hashtable, Richard Henderson, 2022/05/01
- [PATCH v4 39/45] target/arm: Enable FEAT_IESB for -cpu max, Richard Henderson, 2022/05/01
- [PATCH v4 34/45] target/arm: Add minimal RAS registers, Richard Henderson, 2022/05/01
- [PATCH v4 10/45] target/arm: Drop always-true test in define_arm_vh_e2h_redirects_aliases, Richard Henderson, 2022/05/01
- [PATCH v4 27/45] target/arm: Set ID_DFR0.PerfMon for qemu-system-arm -cpu max,
Richard Henderson <=
- [PATCH v4 22/45] target/arm: Merge zcr reginfo, Richard Henderson, 2022/05/01
- [PATCH v4 31/45] target/arm: Enable FEAT_Debugv8p2 for -cpu max, Richard Henderson, 2022/05/01
- [PATCH v4 24/45] target/arm: Adjust definition of CONTEXTIDR_EL2, Richard Henderson, 2022/05/01
- [PATCH v4 38/45] target/arm: Enable FEAT_RAS for -cpu max, Richard Henderson, 2022/05/01
- [PATCH v4 07/45] target/arm: Change cpreg access permissions to enum, Richard Henderson, 2022/05/01
- [PATCH v4 28/45] target/arm: Split out aa32_max_features, Richard Henderson, 2022/05/01
- [PATCH v4 33/45] target/arm: Add isar_feature_{aa64,any}_ras, Richard Henderson, 2022/05/01
- [PATCH v4 35/45] target/arm: Enable SCR and HCR bits for RAS, Richard Henderson, 2022/05/01
- [PATCH v4 37/45] target/arm: Implement ESB instruction, Richard Henderson, 2022/05/01