diff options
| author | Richard Henderson <richard.henderson@linaro.org> | 2020-07-27 16:12:10 +0100 |
|---|---|---|
| committer | Peter Maydell <peter.maydell@linaro.org> | 2020-07-27 16:12:10 +0100 |
| commit | 7ad01d78a9f2e80d1be41226d98f34059f7fff90 (patch) | |
| tree | 1d9385b097b35325273111d87d8d5f241ff61f5b /hw/arm | |
| parent | 24ac0d309ab379cd0347f198c2db5b2b48b02887 (diff) | |
hw/arm/boot: Fix MTE for EL3 direct kernel boot
When booting an EL3 cpu with -kernel, we set up EL3 and then
drop down to EL2. We need to enable access to v8.5-MemTag
tag allocation at EL3 before doing so.
Reported-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20200724163853.504655-3-richard.henderson@linaro.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Diffstat (limited to 'hw/arm')
| -rw-r--r-- | hw/arm/boot.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/hw/arm/boot.c b/hw/arm/boot.c index c44fd3382d..3e9816af80 100644 --- a/hw/arm/boot.c +++ b/hw/arm/boot.c @@ -739,6 +739,9 @@ static void do_cpu_reset(void *opaque) if (cpu_isar_feature(aa64_pauth, cpu)) { env->cp15.scr_el3 |= SCR_API | SCR_APK; } + if (cpu_isar_feature(aa64_mte, cpu)) { + env->cp15.scr_el3 |= SCR_ATA; + } /* AArch64 kernels never boot in secure mode */ assert(!info->secure_boot); /* This hook is only supported for AArch32 currently: |