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target/arm: Update SCR and HCR for RME 

Define the missing SCR and HCR bits, allow SCR_NSE and {SCR,HCR}_GPF
to be set, and invalidate TLBs when NSE changes.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20230620124418.805717-3-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Richard Henderson 2023-06-23 11:15:43 +01:00 committed by Peter Maydell
parent b9f335c247
commit aa3cc42c01
2 changed files with 11 additions and 4 deletions
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5
target/arm/cpu.h
View File

@ -1655,7 +1655,7 @@ static inline void xpsr_write(CPUARMState *env, uint32_t val, uint32_t mask)
#define HCR_TERR (1ULL << 36)
#define HCR_TEA (1ULL << 37)
#define HCR_MIOCNCE (1ULL << 38)
/* RES0 bit 39 */
#define HCR_TME (1ULL << 39)
#define HCR_APK (1ULL << 40)
#define HCR_API (1ULL << 41)
#define HCR_NV (1ULL << 42)
@ -1664,7 +1664,7 @@ static inline void xpsr_write(CPUARMState *env, uint32_t val, uint32_t mask)
#define HCR_NV2 (1ULL << 45)
#define HCR_FWB (1ULL << 46)
#define HCR_FIEN (1ULL << 47)
/* RES0 bit 48 */
#define HCR_GPF (1ULL << 48)
#define HCR_TID4 (1ULL << 49)
#define HCR_TICAB (1ULL << 50)
#define HCR_AMVOFFEN (1ULL << 51)
@ -1729,6 +1729,7 @@ static inline void xpsr_write(CPUARMState *env, uint32_t val, uint32_t mask)
#define SCR_TRNDR (1ULL << 40)
#define SCR_ENTP2 (1ULL << 41)
#define SCR_GPF (1ULL << 48)
#define SCR_NSE (1ULL << 62)
#define HSTR_TTEE (1 << 16)
#define HSTR_TJDBX (1 << 17)

10
target/arm/helper.c
View File

@ -1874,6 +1874,9 @@ static void scr_write(CPUARMState *env, const ARMCPRegInfo *ri, uint64_t value)
if (cpu_isar_feature(aa64_fgt, cpu)) {
valid_mask |= SCR_FGTEN;
}
if (cpu_isar_feature(aa64_rme, cpu)) {
valid_mask |= SCR_NSE | SCR_GPF;
}
} else {
valid_mask &= ~(SCR_RW | SCR_ST);
if (cpu_isar_feature(aa32_ras, cpu)) {
@ -1903,10 +1906,10 @@ static void scr_write(CPUARMState *env, const ARMCPRegInfo *ri, uint64_t value)
env->cp15.scr_el3 = value;
/*
* If SCR_EL3.NS changes, i.e. arm_is_secure_below_el3, then
* If SCR_EL3.{NS,NSE} changes, i.e. change of security state,
* we must invalidate all TLBs below EL3.
*/
if (changed & SCR_NS) {
if (changed & (SCR_NS | SCR_NSE)) {
tlb_flush_by_mmuidx(env_cpu(env), (ARMMMUIdxBit_E10_0 |
ARMMMUIdxBit_E20_0 |
ARMMMUIdxBit_E10_1 |
@ -5654,6 +5657,9 @@ static void do_hcr_write(CPUARMState *env, uint64_t value, uint64_t valid_mask)
if (cpu_isar_feature(aa64_fwb, cpu)) {
valid_mask |= HCR_FWB;
}
if (cpu_isar_feature(aa64_rme, cpu)) {
valid_mask |= HCR_GPF;
}
}
if (cpu_isar_feature(any_evt, cpu)) {