diff options
Diffstat (limited to 'target')
| -rw-r--r-- | target/arm/cpu.h | 2 | ||||
| -rw-r--r-- | target/arm/helper.c | 14 |
2 files changed, 9 insertions, 7 deletions
diff --git a/target/arm/cpu.h b/target/arm/cpu.h index 20d97b66de..b8dbdb5e01 100644 --- a/target/arm/cpu.h +++ b/target/arm/cpu.h @@ -1312,8 +1312,6 @@ static inline void xpsr_write(CPUARMState *env, uint32_t val, uint32_t mask) #define SCR_FIEN (1U << 21) #define SCR_ENSCXT (1U << 25) #define SCR_ATA (1U << 26) -#define SCR_AARCH32_MASK (0x3fff & ~(SCR_RW | SCR_ST)) -#define SCR_AARCH64_MASK (0x3fff & ~SCR_NET) /* Return the current FPSCR value. */ uint32_t vfp_get_fpscr(CPUARMState *env); diff --git a/target/arm/helper.c b/target/arm/helper.c index bf020364e1..1dad277804 100644 --- a/target/arm/helper.c +++ b/target/arm/helper.c @@ -1279,11 +1279,15 @@ static void vbar_write(CPUARMState *env, const ARMCPRegInfo *ri, static void scr_write(CPUARMState *env, const ARMCPRegInfo *ri, uint64_t value) { - /* We only mask off bits that are RES0 both for AArch64 and AArch32. - * For bits that vary between AArch32/64, code needs to check the - * current execution mode before directly using the feature bit. - */ - uint32_t valid_mask = SCR_AARCH64_MASK | SCR_AARCH32_MASK; + /* Begin with base v8.0 state. */ + uint32_t valid_mask = 0x3fff; + + if (arm_el_is_aa64(env, 3)) { + value |= SCR_FW | SCR_AW; /* these two bits are RES1. */ + valid_mask &= ~SCR_NET; + } else { + valid_mask &= ~(SCR_RW | SCR_ST); + } if (!arm_feature(env, ARM_FEATURE_EL2)) { valid_mask &= ~SCR_HCE; |