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target/arm: Set ID_DFR0.PerfMon for qemu-system-arm -cpu max 

We set this for qemu-system-aarch64, but failed to do so
for the strictly 32-bit emulation.

Fixes: 3bec78447a ("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>
Message-id: 20220506180242.216785-8-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Richard Henderson 2022-05-06 13:02:25 -05:00 committed by Peter Maydell
parent 7e834daf0a
commit e14cc941f1
1 changed files with 4 additions and 0 deletions
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4
target/arm/cpu_tcg.c
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@ -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.