haraldwolff/qemu-patch-raspberry4
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Make CPU hflags be a masked version of the PowerPC MSR.

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As a side effect, avoid potential bits shadowing in TB flags on 64 bits BookE.


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3199 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
j_mayer 2007-09-21 05:23:26 +00:00
parent c068688b03
commit 4296f45902
2 changed files with 5 additions and 4 deletions
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2
target-ppc/cpu.h
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@ -807,7 +807,7 @@ struct CPUPPCState {
/* Those resources are used only in Qemu core */
jmp_buf jmp_env;
int user_mode_only; /* user mode only simulation */
uint32_t hflags;
target_ulong hflags; /* hflags is a MSR & HFLAGS_MASK */
/* Power management */
int power_mode;

7
target-ppc/helper.c
View file

@ -1776,13 +1776,14 @@ void ppc_store_msr_32 (CPUPPCState *env, uint32_t value)
void do_compute_hflags (CPUPPCState *env)
{
/* Compute current hflags */
env->hflags = (msr_cm << MSR_CM) | (msr_vr << MSR_VR) |
env->hflags = (msr_vr << MSR_VR) |
(msr_ap << MSR_AP) | (msr_sa << MSR_SA) | (msr_pr << MSR_PR) |
(msr_fp << MSR_FP) | (msr_fe0 << MSR_FE0) | (msr_se << MSR_SE) |
(msr_be << MSR_BE) | (msr_fe1 << MSR_FE1) | (msr_le << MSR_LE);
#if defined (TARGET_PPC64)
/* No care here: PowerPC 64 MSR_SF means the same as MSR_CM for BookE */
env->hflags |= (msr_sf << (MSR_SF - 32)) | (msr_hv << (MSR_HV - 32));
env->hflags |= msr_cm << MSR_CM;
env->hflags |= (uint64_t)msr_sf << MSR_SF;
env->hflags |= (uint64_t)msr_hv << MSR_HV;
#endif
}