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[Qemu-arm] [PATCH v2 1/6] target/arm: Implement RAZ/WI HACTLR2
From: |
Peter Maydell |
Subject: |
[Qemu-arm] [PATCH v2 1/6] target/arm: Implement RAZ/WI HACTLR2 |
Date: |
Mon, 20 Aug 2018 16:30:15 +0100 |
The v8 AArch32 HACTLR2 register maps to bits [63:32] of ACTLR_EL2.
We implement ACTLR_EL2 as RAZ/WI, so make HACTLR2 also RAZ/WI.
(We put the regdef next to ACTLR_EL2 as a reminder in case we
ever make ACTLR_EL2 something other than RAZ/WI).
Signed-off-by: Peter Maydell <address@hidden>
---
changes from v1: only define in ARMv8, not v7
---
target/arm/helper.c | 10 ++++++++++
1 file changed, 10 insertions(+)
diff --git a/target/arm/helper.c b/target/arm/helper.c
index c9bce1efcb2..22547d8e739 100644
--- a/target/arm/helper.c
+++ b/target/arm/helper.c
@@ -5459,6 +5459,16 @@ void register_cp_regs_for_features(ARMCPU *cpu)
REGINFO_SENTINEL
};
define_arm_cp_regs(cpu, auxcr_reginfo);
+ if (arm_feature(env, ARM_FEATURE_V8)) {
+ /* HACTLR2 maps to ACTLR_EL2[63:32] and is not in ARMv7 */
+ ARMCPRegInfo hactlr2_reginfo = {
+ .name = "HACTLR2", .state = ARM_CP_STATE_AA32,
+ .cp = 15, .opc1 = 4, .crn = 1, .crm = 0, .opc2 = 3,
+ .access = PL2_RW, .type = ARM_CP_CONST,
+ .resetvalue = 0
+ };
+ define_one_arm_cp_reg(cpu, &hactlr2_reginfo);
+ }
}
if (arm_feature(env, ARM_FEATURE_CBAR)) {
--
2.18.0
- [Qemu-arm] [PATCH v2 0/6] target/arm: Some pieces of support for 32-bit Hyp mode, Peter Maydell, 2018/08/20
- [Qemu-arm] [PATCH v2 2/6] target/arm: Implement AArch32 HCR and HCR2, Peter Maydell, 2018/08/20
- [Qemu-arm] [PATCH v2 3/6] target/arm: Factor out code for taking an AArch32 exception, Peter Maydell, 2018/08/20
- [Qemu-arm] [PATCH v2 5/6] target/arm: Clear CPSR.IL and CPSR.J on 32-bit exception entry, Peter Maydell, 2018/08/20
- [Qemu-arm] [PATCH v2 6/6] hw/arm/boot: AArch32 kernels should be started in Hyp mode if available, Peter Maydell, 2018/08/20
- [Qemu-arm] [PATCH v2 4/6] target/arm: Implement support for taking exceptions to Hyp mode, Peter Maydell, 2018/08/20
- [Qemu-arm] [PATCH v2 1/6] target/arm: Implement RAZ/WI HACTLR2,
Peter Maydell <=
- Re: [Qemu-arm] [Qemu-devel] [PATCH v2 0/6] target/arm: Some pieces of support for 32-bit Hyp mode, Richard Henderson, 2018/08/20
- Re: [Qemu-arm] [PATCH v2 0/6] target/arm: Some pieces of support for 32-bit Hyp mode, Edgar E. Iglesias, 2018/08/21
- Re: [Qemu-arm] [PATCH v2 0/6] target/arm: Some pieces of support for 32-bit Hyp mode, Luc Michel, 2018/08/22