From: "Alex Bennée" <alex.bennee@linaro.org>
To: Richard Henderson <richard.henderson@linaro.org>
Cc: peter.maydell@linaro.org, qemu-devel@nongnu.org
Subject: Re: [PATCH v2 06/14] target/arm: Update arm_mmu_idx_el for PAN
Date: Mon, 03 Feb 2020 13:38:17 +0000 [thread overview]
Message-ID: <87h807aj06.fsf@linaro.org> (raw)
In-Reply-To: <20200202010439.6410-7-richard.henderson@linaro.org>
Richard Henderson <richard.henderson@linaro.org> writes:
> Examine the PAN bit for EL1, EL2, and Secure EL1 to
> determine if it applies.
>
> Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
> ---
> target/arm/helper.c | 9 +++++++++
> 1 file changed, 9 insertions(+)
>
> diff --git a/target/arm/helper.c b/target/arm/helper.c
> index 90a22921dc..638abe6af0 100644
> --- a/target/arm/helper.c
> +++ b/target/arm/helper.c
> @@ -11904,13 +11904,22 @@ ARMMMUIdx arm_mmu_idx_el(CPUARMState *env, int el)
> return ARMMMUIdx_E10_0;
> case 1:
> if (arm_is_secure_below_el3(env)) {
> + if (env->pstate & PSTATE_PAN) {
> + return ARMMMUIdx_SE10_1_PAN;
> + }
> return ARMMMUIdx_SE10_1;
> }
> + if (env->pstate & PSTATE_PAN) {
> + return ARMMMUIdx_E10_1_PAN;
> + }
> return ARMMMUIdx_E10_1;
> case 2:
> /* TODO: ARMv8.4-SecEL2 */
> /* Note that TGE does not apply at EL2. */
> if ((env->cp15.hcr_el2 & HCR_E2H) && arm_el_is_aa64(env, 2)) {
> + if (env->pstate & PSTATE_PAN) {
> + return ARMMMUIdx_E20_2_PAN;
> + }
> return ARMMMUIdx_E20_2;
> }
> return ARMMMUIdx_E2;
--
Alex Bennée
next prev parent reply other threads:[~2020-02-03 13:39 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-02-02 1:04 [PATCH v2 00/14] target/arm: Implement PAN, ATS1E1, UAO Richard Henderson
2020-02-02 1:04 ` [PATCH v2 01/14] target/arm: Add arm_mmu_idx_is_stage1_of_2 Richard Henderson
2020-02-03 11:46 ` Alex Bennée
2020-02-02 1:04 ` [PATCH v2 02/14] target/arm: Add mmu_idx for EL1 and EL2 w/ PAN enabled Richard Henderson
2020-02-03 11:54 ` Alex Bennée
2020-02-02 1:04 ` [PATCH v2 03/14] target/arm: Add isar_feature tests for PAN + ATS1E1 Richard Henderson
2020-02-03 12:24 ` Alex Bennée
2020-02-02 1:04 ` [PATCH v2 04/14] target/arm: Move LOR regdefs to file scope Richard Henderson
2020-02-03 12:25 ` Alex Bennée
2020-02-02 1:04 ` [PATCH v2 05/14] target/arm: Update MSR access for PAN Richard Henderson
2020-02-03 13:37 ` Alex Bennée
2020-02-02 1:04 ` [PATCH v2 06/14] target/arm: Update arm_mmu_idx_el " Richard Henderson
2020-02-03 13:38 ` Alex Bennée [this message]
2020-02-02 1:04 ` [PATCH v2 07/14] target/arm: Enforce PAN semantics in get_S1prot Richard Henderson
2020-02-03 14:30 ` Alex Bennée
2020-02-02 1:04 ` [PATCH v2 08/14] target/arm: Set PAN bit as required on exception entry Richard Henderson
2020-02-02 1:04 ` [PATCH v2 09/14] target/arm: Implement ATS1E1 system registers Richard Henderson
2020-02-02 1:04 ` [PATCH v2 10/14] target/arm: Enable ARMv8.2-ATS1E1 in -cpu max Richard Henderson
2020-02-02 1:04 ` [PATCH v2 11/14] target/arm: Add ID_AA64MMFR2_EL1 Richard Henderson
2020-02-02 1:04 ` [PATCH v2 12/14] target/arm: Update MSR access to UAO Richard Henderson
2020-02-02 1:04 ` [PATCH v2 13/14] target/arm: Implement UAO semantics Richard Henderson
2020-02-02 1:04 ` [PATCH v2 14/14] target/arm: Enable ARMv8.2-UAO in -cpu max Richard Henderson
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