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target/arm: Add syn_smetrap

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This will be used for raising various traps for SME.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20220620175235.60881-4-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Richard Henderson 2022-06-20 10:51:47 -07:00 committed by Peter Maydell
parent 6b2ca83e4c
commit 58b2908ee1
1 changed files with 14 additions and 0 deletions
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14
target/arm/syndrome.h
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@ -48,6 +48,7 @@ enum arm_exception_class {
EC_AA64_SMC = 0x17,
EC_SYSTEMREGISTERTRAP = 0x18,
EC_SVEACCESSTRAP = 0x19,
EC_SMETRAP = 0x1d,
EC_INSNABORT = 0x20,
EC_INSNABORT_SAME_EL = 0x21,
EC_PCALIGNMENT = 0x22,
@ -68,6 +69,13 @@ enum arm_exception_class {
EC_AA64_BKPT = 0x3c,
};
typedef enum {
SME_ET_AccessTrap,
SME_ET_Streaming,
SME_ET_NotStreaming,
SME_ET_InactiveZA,
} SMEExceptionType;
#define ARM_EL_EC_SHIFT 26
#define ARM_EL_IL_SHIFT 25
#define ARM_EL_ISV_SHIFT 24
@ -207,6 +215,12 @@ static inline uint32_t syn_sve_access_trap(void)
return EC_SVEACCESSTRAP << ARM_EL_EC_SHIFT;
}
static inline uint32_t syn_smetrap(SMEExceptionType etype, bool is_16bit)
{
return (EC_SMETRAP << ARM_EL_EC_SHIFT)
| (is_16bit ? 0 : ARM_EL_IL) | etype;
}
static inline uint32_t syn_pactrap(void)
{
return EC_PACTRAP << ARM_EL_EC_SHIFT;