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target/arm: Skip granule protection checks for AT instructions

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GPC checks are not performed on the output address for AT instructions,
as stated by ARM DDI 0487J in D8.12.2:

  When populating PAR_EL1 with the result of an address translation
  instruction, granule protection checks are not performed on the final
  output address of a successful translation.

Rename get_phys_addr_with_secure(), since it's only used to handle AT
instructions.

Signed-off-by: Jean-Philippe Brucker <jean-philippe@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 20230809123706.1842548-4-jean-philippe@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Jean-Philippe Brucker 2023-08-22 17:31:12 +01:00 • committed by Peter Maydell
parent ceaa97465f
commit f1269a98aa
3 changed files with 26 additions and 18 deletions
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8
target/arm/helper.c
View file

@ -3365,8 +3365,12 @@ static uint64_t do_ats_write(CPUARMState *env, uint64_t value,
ARMMMUFaultInfo fi = {};
GetPhysAddrResult res = {};
ret = get_phys_addr_with_secure(env, value, access_type, mmu_idx,
is_secure, &res, &fi);
/*
* I_MXTJT: Granule protection checks are not performed on the final address
* of a successful translation.
*/
ret = get_phys_addr_with_secure_nogpc(env, value, access_type, mmu_idx,
is_secure, &res, &fi);
/*
* ATS operations only do S1 or S1+S2 translations, so we never