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From: | Richard Henderson |
Subject: | Re: [PATCH] target/arm: Fix MTE access checks for disabled SEL2 |
Date: | Mon, 28 Mar 2022 12:04:23 -0600 |
User-agent: | Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.7.0 |
On 3/28/22 11:31, Idan Horowitz wrote:
While not mentioned anywhere in the actual specification text, the HCR_EL2.ATA bit is treated as '1' when EL2 is disabled at the current security state. This can be observed in the psuedo-code implementation of AArch64.AllocationTagAccessIsEnabled(). Signed-off-by: Idan Horowitz <idan.horowitz@gmail.com> --- target/arm/helper.c | 2 +- target/arm/internals.h | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-)
I was immediately thinking, didn't I just fix this? But I was patching pauth. Anyway, good catch. Reviewed-by: Richard Henderson <richard.henderson@linaro.org> r~
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