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[PATCH v3 40/42] target/arm: Consider GP an attribute in get_phys_addr_l
From: |
Richard Henderson |
Subject: |
[PATCH v3 40/42] target/arm: Consider GP an attribute in get_phys_addr_lpae |
Date: |
Sat, 1 Oct 2022 09:23:16 -0700 |
Both GP and DBM are in the upper attribute block.
Extend the computation of attrs to include them,
then simplify the setting of guarded.
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
target/arm/ptw.c | 6 ++----
1 file changed, 2 insertions(+), 4 deletions(-)
diff --git a/target/arm/ptw.c b/target/arm/ptw.c
index c68fd73617..45734b0d28 100644
--- a/target/arm/ptw.c
+++ b/target/arm/ptw.c
@@ -1079,7 +1079,6 @@ static bool get_phys_addr_lpae(CPUARMState *env, uint64_t
address,
uint32_t el = regime_el(env, mmu_idx);
uint64_t descaddrmask;
bool aarch64 = arm_el_is_aa64(env, el);
- bool guarded = false;
S1TranslateResult s1;
uint64_t descriptor;
bool nstable;
@@ -1341,7 +1340,7 @@ static bool get_phys_addr_lpae(CPUARMState *env, uint64_t
address,
descaddr &= ~(page_size - 1);
descaddr |= (address & (page_size - 1));
/* Extract attributes from the descriptor */
- attrs = descriptor & (MAKE_64BIT_MASK(2, 10) | MAKE_64BIT_MASK(52, 12));
+ attrs = descriptor & (MAKE_64BIT_MASK(2, 10) | MAKE_64BIT_MASK(50, 14));
if (mmu_idx == ARMMMUIdx_Stage2 || mmu_idx == ARMMMUIdx_Stage2_S) {
/* Stage 2 table descriptors do not include any attribute fields */
@@ -1349,7 +1348,6 @@ static bool get_phys_addr_lpae(CPUARMState *env, uint64_t
address,
}
/* Merge in attributes from table descriptors */
attrs |= nstable << 5; /* NS */
- guarded = extract64(descriptor, 50, 1); /* GP */
if (param.hpd) {
/* HPD disables all the table attributes except NSTable. */
goto skip_attrs;
@@ -1402,7 +1400,7 @@ static bool get_phys_addr_lpae(CPUARMState *env, uint64_t
address,
/* When in aarch64 mode, and BTI is enabled, remember GP in the TLB. */
if (aarch64 && cpu_isar_feature(aa64_bti, cpu)) {
- result->f.guarded = guarded;
+ result->f.guarded = extract64(attrs, 50, 1); /* GP */
}
if (mmu_idx == ARMMMUIdx_Stage2 || mmu_idx == ARMMMUIdx_Stage2_S) {
--
2.34.1
- [PATCH v3 35/42] target/arm: Move S1_ptw_translate outside arm_ld[lq]_ptw, (continued)
- [PATCH v3 35/42] target/arm: Move S1_ptw_translate outside arm_ld[lq]_ptw, Richard Henderson, 2022/10/01
- [PATCH v3 36/42] target/arm: Add ARMFault_UnsuppAtomicUpdate, Richard Henderson, 2022/10/01
- [PATCH v3 37/42] target/arm: Remove loop from get_phys_addr_lpae, Richard Henderson, 2022/10/01
- [PATCH v3 38/42] target/arm: Fix fault reporting in get_phys_addr_lpae, Richard Henderson, 2022/10/01
- [PATCH v3 39/42] target/arm: Don't shift attrs in get_phys_addr_lpae, Richard Henderson, 2022/10/01
- [PATCH v3 40/42] target/arm: Consider GP an attribute in get_phys_addr_lpae,
Richard Henderson <=
- [PATCH v3 41/42] target/arm: Implement FEAT_HAFDBS, Richard Henderson, 2022/10/01
[PATCH v3 42/42] target/arm: Use the max page size in a 2-stage ptw, Richard Henderson, 2022/10/01
Re: [PATCH v3 00/42] target/arm: Implement FEAT_HAFDBS, Peter Maydell, 2022/10/10