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| author |   bellard <bellard@c046a42c-6fe2-441c-8c8c-71466251a162> | 2005-11-26 20:15:14 +0000 |
|---|---|---|
| committer | bellard <bellard@c046a42c-6fe2-441c-8c8c-71466251a162> | 2005-11-26 20:15:14 +0000 |
| commit | 50443c98e4149e8cde3b371f9ed60d943d95d286 (patch) | |
| tree | 1d091d1e6bd2311470eab59ec5f08cae89c0f4f9 /target-ppc | |
| parent | fixed async signal support for tb_phys_invalidate() (diff) | |
| download | qemu-kvm-50443c98e4149e8cde3b371f9ed60d943d95d286.tar.gz qemu-kvm-50443c98e4149e8cde3b371f9ed60d943d95d286.tar.bz2 qemu-kvm-50443c98e4149e8cde3b371f9ed60d943d95d286.zip | |
specialize the power save code for 7x0 CPUs
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1671 c046a42c-6fe2-441c-8c8c-71466251a162
Diffstat (limited to 'target-ppc')
| -rw-r--r-- | target-ppc/cpu.h | 2 | ||||
| -rw-r--r-- | target-ppc/helper.c | 15 |
2 files changed, 16 insertions, 1 deletions
diff --git a/target-ppc/cpu.h b/target-ppc/cpu.h index fa7f524e9..88d91358e 100644 --- a/target-ppc/cpu.h +++ b/target-ppc/cpu.h @@ -495,6 +495,8 @@ struct CPUPPCState { CPU_COMMON + int halted; /* TRUE if the CPU is in suspend state */ + int access_type; /* when a memory exception occurs, the access type is stored here */ diff --git a/target-ppc/helper.c b/target-ppc/helper.c index ff1355c54..3f7a70871 100644 --- a/target-ppc/helper.c +++ b/target-ppc/helper.c @@ -807,6 +807,8 @@ void do_compute_hflags (CPUPPCState *env) void do_store_msr (CPUPPCState *env, target_ulong value) { + int enter_pm; + value &= env->msr_mask; if (((value >> MSR_IR) & 1) != msr_ir || ((value >> MSR_DR) & 1) != msr_dr) { @@ -846,8 +848,19 @@ void do_store_msr (CPUPPCState *env, target_ulong value) msr_ri = (value >> MSR_RI) & 1; msr_le = (value >> MSR_LE) & 1; do_compute_hflags(env); - if (msr_pow) { + + enter_pm = 0; + switch (PPC_EXCP(env)) { + case PPC_FLAGS_EXCP_7x0: + if (msr_pow == 1 && (env->spr[SPR_HID0] & 0x00E00000) != 0) + enter_pm = 1; + break; + default: + break; + } + if (enter_pm) { /* power save: exit cpu loop */ + env->halted = 1; env->exception_index = EXCP_HLT; cpu_loop_exit(); } |