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[Qemu-devel] [PULL 31/45] target-arm: Get MMU index information correct
From: |
Peter Maydell |
Subject: |
[Qemu-devel] [PULL 31/45] target-arm: Get MMU index information correct for A64 code |
Date: |
Wed, 26 Feb 2014 18:02:21 +0000 |
Emit the correct MMU index information for loads and stores from
A64 code, rather than hardwiring it to "always kernel mode",
by storing the exception level in the TB flags, and make
cpu_mmu_index() return the right answer when the CPU is in
AArch64 mode.
Signed-off-by: Peter Maydell <address@hidden>
Reviewed-by: Peter Crosthwaite <address@hidden>
---
target-arm/cpu.h | 11 ++++++++---
target-arm/translate-a64.c | 2 +-
2 files changed, 9 insertions(+), 4 deletions(-)
diff --git a/target-arm/cpu.h b/target-arm/cpu.h
index e8e0474..9fe7da2 100644
--- a/target-arm/cpu.h
+++ b/target-arm/cpu.h
@@ -1057,7 +1057,7 @@ static inline CPUARMState *cpu_init(const char *cpu_model)
#define MMU_USER_IDX 1
static inline int cpu_mmu_index (CPUARMState *env)
{
- return (env->uncached_cpsr & CPSR_M) == ARM_CPU_MODE_USR ? 1 : 0;
+ return arm_current_pl(env) ? 0 : 1;
}
#include "exec/cpu-all.h"
@@ -1084,7 +1084,9 @@ static inline int cpu_mmu_index (CPUARMState *env)
#define ARM_TBFLAG_BSWAP_CODE_SHIFT 16
#define ARM_TBFLAG_BSWAP_CODE_MASK (1 << ARM_TBFLAG_BSWAP_CODE_SHIFT)
-/* Bit usage when in AArch64 state: currently no bits defined */
+/* Bit usage when in AArch64 state */
+#define ARM_TBFLAG_AA64_EL_SHIFT 0
+#define ARM_TBFLAG_AA64_EL_MASK (0x3 << ARM_TBFLAG_AA64_EL_SHIFT)
/* some convenience accessor macros */
#define ARM_TBFLAG_AARCH64_STATE(F) \
@@ -1103,13 +1105,16 @@ static inline int cpu_mmu_index (CPUARMState *env)
(((F) & ARM_TBFLAG_CONDEXEC_MASK) >> ARM_TBFLAG_CONDEXEC_SHIFT)
#define ARM_TBFLAG_BSWAP_CODE(F) \
(((F) & ARM_TBFLAG_BSWAP_CODE_MASK) >> ARM_TBFLAG_BSWAP_CODE_SHIFT)
+#define ARM_TBFLAG_AA64_EL(F) \
+ (((F) & ARM_TBFLAG_AA64_EL_MASK) >> ARM_TBFLAG_AA64_EL_SHIFT)
static inline void cpu_get_tb_cpu_state(CPUARMState *env, target_ulong *pc,
target_ulong *cs_base, int *flags)
{
if (is_a64(env)) {
*pc = env->pc;
- *flags = ARM_TBFLAG_AARCH64_STATE_MASK;
+ *flags = ARM_TBFLAG_AARCH64_STATE_MASK
+ | (arm_current_pl(env) << ARM_TBFLAG_AA64_EL_SHIFT);
} else {
int privmode;
*pc = env->regs[15];
diff --git a/target-arm/translate-a64.c b/target-arm/translate-a64.c
index ec2d9dc..a6c8fab 100644
--- a/target-arm/translate-a64.c
+++ b/target-arm/translate-a64.c
@@ -9013,7 +9013,7 @@ void gen_intermediate_code_internal_a64(ARMCPU *cpu,
dc->condexec_mask = 0;
dc->condexec_cond = 0;
#if !defined(CONFIG_USER_ONLY)
- dc->user = 0;
+ dc->user = (ARM_TBFLAG_AA64_EL(tb->flags) == 0);
#endif
dc->vfp_enabled = 0;
dc->vec_len = 0;
--
1.9.0
- [Qemu-devel] [PULL 39/45] dma/pl330: Delete overly verbose debug printf, (continued)
- [Qemu-devel] [PULL 39/45] dma/pl330: Delete overly verbose debug printf, Peter Maydell, 2014/02/26
- [Qemu-devel] [PULL 41/45] dma/pl330: printf format type sweep., Peter Maydell, 2014/02/26
- [Qemu-devel] [PULL 12/45] arm: vgic device control api support, Peter Maydell, 2014/02/26
- [Qemu-devel] [PULL 23/45] target-arm: Implement AArch64 TCR_EL1, Peter Maydell, 2014/02/26
- [Qemu-devel] [PULL 37/45] include/qemu/crc32c.h: Rename include guards to match filename, Peter Maydell, 2014/02/26
- [Qemu-devel] [PULL 36/45] target-arm: Add utility function for checking AA32/64 state of an EL, Peter Maydell, 2014/02/26
- [Qemu-devel] [PULL 38/45] target-arm: Add support for AArch32 ARMv8 CRC32 instructions, Peter Maydell, 2014/02/26
- [Qemu-devel] [PULL 44/45] dma/pl330: Fix buffer depth, Peter Maydell, 2014/02/26
- [Qemu-devel] [PULL 35/45] target-arm: Implement AArch64 view of CPACR, Peter Maydell, 2014/02/26
- [Qemu-devel] [PULL 22/45] target-arm: Implement AArch64 SCTLR_EL1, Peter Maydell, 2014/02/26
- [Qemu-devel] [PULL 31/45] target-arm: Get MMU index information correct for A64 code,
Peter Maydell <=
- [Qemu-devel] [PULL 04/45] target-arm: Fix incorrect arithmetic constructing short-form PAR for ATS ops, Peter Maydell, 2014/02/26
- [Qemu-devel] [PULL 24/45] target-arm: Implement AArch64 VBAR_EL1, Peter Maydell, 2014/02/26
- [Qemu-devel] [PULL 33/45] target-arm: Store AIF bits in env->pstate for AArch32, Peter Maydell, 2014/02/26
- [Qemu-devel] [PULL 17/45] target-arm: Implement AArch64 MIDR_EL1, Peter Maydell, 2014/02/26
- [Qemu-devel] [PULL 27/45] target-arm: Implement AArch64 generic timers, Peter Maydell, 2014/02/26
- [Qemu-devel] [PULL 30/45] target-arm: Implement AArch64 OSLAR_EL1 sysreg as WI, Peter Maydell, 2014/02/26
- [Qemu-devel] [PULL 29/45] target-arm: Implement AArch64 dummy breakpoint and watchpoint registers, Peter Maydell, 2014/02/26
- [Qemu-devel] [PULL 34/45] target-arm: A64: Implement MSR (immediate) instructions, Peter Maydell, 2014/02/26
- [Qemu-devel] [PULL 15/45] target-arm: A64: Make cache ID registers visible to AArch64, Peter Maydell, 2014/02/26
- [Qemu-devel] [PULL 05/45] hw/intc/exynos4210_combiner: Don't overrun output_irq array in init, Peter Maydell, 2014/02/26