diff options
Diffstat (limited to 'target-ppc/helper_regs.h')
| -rw-r--r-- | target-ppc/helper_regs.h | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/target-ppc/helper_regs.h b/target-ppc/helper_regs.h index bb9ce60..6213816 100644 --- a/target-ppc/helper_regs.h +++ b/target-ppc/helper_regs.h @@ -131,11 +131,14 @@ static inline int hreg_store_msr(CPUPPCState *env, target_ulong value, } /* If PR=1 then EE, IR and DR must be 1 * - * Note: We only enforce this on 64-bit processors. It appears that - * 32-bit implementations supports PR=1 and EE/DR/IR=0 and MacOS - * exploits it. + * Note: We only enforce this on 64-bit server processors. + * It appears that: + * - 32-bit implementations supports PR=1 and EE/DR/IR=0 and MacOS + * exploits it. + * - 64-bit embedded implementations do not need any operation to be + * performed when PR is set. */ - if ((env->insns_flags & PPC_64B) && ((value >> MSR_PR) & 1)) { + if ((env->insns_flags & PPC_SEGMENT_64B) && ((value >> MSR_PR) & 1)) { value |= (1 << MSR_EE) | (1 << MSR_DR) | (1 << MSR_IR); } #endif |