diff options
Diffstat (limited to 'target/s390x/cpu.h')
-rw-r--r-- | target/s390x/cpu.h | 22 |
1 files changed, 21 insertions, 1 deletions
diff --git a/target/s390x/cpu.h b/target/s390x/cpu.h index 532a4a075c..5b94ace42c 100644 --- a/target/s390x/cpu.h +++ b/target/s390x/cpu.h @@ -304,6 +304,7 @@ void s390x_cpu_debug_excp_handler(CPUState *cs); #undef PSW_MASK_WAIT #undef PSW_MASK_PSTATE #undef PSW_MASK_ASC +#undef PSW_SHIFT_ASC #undef PSW_MASK_CC #undef PSW_MASK_PM #undef PSW_MASK_64 @@ -320,6 +321,7 @@ void s390x_cpu_debug_excp_handler(CPUState *cs); #define PSW_MASK_WAIT 0x0002000000000000ULL #define PSW_MASK_PSTATE 0x0001000000000000ULL #define PSW_MASK_ASC 0x0000C00000000000ULL +#define PSW_SHIFT_ASC 46 #define PSW_MASK_CC 0x0000300000000000ULL #define PSW_MASK_PM 0x00000F0000000000ULL #define PSW_MASK_64 0x0000000100000000ULL @@ -336,6 +338,12 @@ void s390x_cpu_debug_excp_handler(CPUState *cs); #define PSW_ASC_SECONDARY 0x0000800000000000ULL #define PSW_ASC_HOME 0x0000C00000000000ULL +/* the address space values shifted */ +#define AS_PRIMARY 0 +#define AS_ACCREG 1 +#define AS_SECONDARY 2 +#define AS_HOME 3 + /* tb flags */ #define FLAG_MASK_PER (PSW_MASK_PER >> 32) @@ -354,6 +362,7 @@ void s390x_cpu_debug_excp_handler(CPUState *cs); /* Control register 0 bits */ #define CR0_LOWPROT 0x0000000010000000ULL +#define CR0_SECONDARY 0x0000000004000000ULL #define CR0_EDAT 0x0000000000800000ULL /* MMU */ @@ -361,7 +370,18 @@ void s390x_cpu_debug_excp_handler(CPUState *cs); #define MMU_SECONDARY_IDX 1 #define MMU_HOME_IDX 2 -static inline int cpu_mmu_index (CPUS390XState *env, bool ifetch) +static inline bool psw_key_valid(CPUS390XState *env, uint8_t psw_key) +{ + uint16_t pkm = env->cregs[3] >> 16; + + if (env->psw.mask & PSW_MASK_PSTATE) { + /* PSW key has range 0..15, it is valid if the bit is 1 in the PKM */ + return pkm & (0x80 >> psw_key); + } + return true; +} + +static inline int cpu_mmu_index(CPUS390XState *env, bool ifetch) { switch (env->psw.mask & PSW_MASK_ASC) { case PSW_ASC_PRIMARY: |