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[PATCH v2 02/15] target/arm: Set TCR_EL1.TSZ for user-only
From: |
Richard Henderson |
Subject: |
[PATCH v2 02/15] target/arm: Set TCR_EL1.TSZ for user-only |
Date: |
Thu, 10 Feb 2022 15:04:10 +1100 |
Set this as the kernel would, to 48 bits, to keep the computation
of the address space correct for PAuth.
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
target/arm/cpu.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/target/arm/cpu.c b/target/arm/cpu.c
index 5a9c02a256..92f19f919a 100644
--- a/target/arm/cpu.c
+++ b/target/arm/cpu.c
@@ -206,10 +206,11 @@ static void arm_cpu_reset(DeviceState *dev)
aarch64_sve_zcr_get_valid_len(cpu, cpu->sve_default_vq - 1);
}
/*
+ * Enable 48-bit address space (TODO: take reserved_va into account).
* Enable TBI0 but not TBI1.
* Note that this must match useronly_clean_ptr.
*/
- env->cp15.tcr_el[1].raw_tcr = (1ULL << 37);
+ env->cp15.tcr_el[1].raw_tcr = 5 | (1ULL << 37);
/* Enable MTE */
if (cpu_isar_feature(aa64_mte, cpu)) {
--
2.25.1
- [PATCH v2 00/15] target/arm: Implement LVA, LPA, LPA2 features, Richard Henderson, 2022/02/09
- [PATCH v2 01/15] hw/registerfields: Add FIELD_SEX<N> and FIELD_SDP<N>, Richard Henderson, 2022/02/09
- [PATCH v2 02/15] target/arm: Set TCR_EL1.TSZ for user-only,
Richard Henderson <=
- [PATCH v2 04/15] target/arm: Move arm_pamax out of line, Richard Henderson, 2022/02/09
- [PATCH v2 03/15] target/arm: Fault on invalid TCR_ELx.TxSZ, Richard Henderson, 2022/02/09
- [PATCH v2 05/15] target/arm: Pass outputsize down to check_s2_mmu_setup, Richard Henderson, 2022/02/09
- [PATCH v2 07/15] target/arm: Honor TCR_ELx.{I}PS, Richard Henderson, 2022/02/09
- [PATCH v2 08/15] target/arm: Prepare DBGBVR and DBGWVR for FEAT_LVA, Richard Henderson, 2022/02/09