diff options
Diffstat (limited to 'hw/ppc')
| -rw-r--r-- | hw/ppc/spapr_cpu_core.c | 22 | ||||
| -rw-r--r-- | hw/ppc/spapr_rtas.c | 2 |
2 files changed, 8 insertions, 16 deletions
diff --git a/hw/ppc/spapr_cpu_core.c b/hw/ppc/spapr_cpu_core.c index a52ddad..f3e9b87 100644 --- a/hw/ppc/spapr_cpu_core.c +++ b/hw/ppc/spapr_cpu_core.c @@ -54,28 +54,17 @@ static void spapr_cpu_reset(void *opaque) * Clearing VPM0 will also cause us to use RMOR in mmu-hash64.c for * real mode accesses, which thankfully defaults to 0 and isn't * accessible in guest mode. + * + * Disable Power-saving mode Exit Cause exceptions for the CPU, so + * we don't get spurious wakups before an RTAS start-cpu call. */ - lpcr &= ~(LPCR_VPM0 | LPCR_VPM1 | LPCR_ISL | LPCR_KBV); + lpcr &= ~(LPCR_VPM0 | LPCR_VPM1 | LPCR_ISL | LPCR_KBV | pcc->lpcr_pm); lpcr |= LPCR_LPES0 | LPCR_LPES1; /* Set RMLS to the max (ie, 16G) */ lpcr &= ~LPCR_RMLS; lpcr |= 1ull << LPCR_RMLS_SHIFT; - /* Only enable Power-saving mode Exit Cause exceptions on the boot - * CPU. The RTAS command start-cpu will enable them on secondaries. - */ - if (cs == first_cpu) { - lpcr |= pcc->lpcr_pm; - } - - /* Disable Power-saving mode Exit Cause exceptions for the CPU. - * This can cause issues when rebooting the guest if a secondary - * is awaken */ - if (cs != first_cpu) { - lpcr &= ~pcc->lpcr_pm; - } - ppc_store_lpcr(cpu, lpcr); /* Set a full AMOR so guest can use the AMR as it sees fit */ @@ -84,11 +73,14 @@ static void spapr_cpu_reset(void *opaque) void spapr_cpu_set_entry_state(PowerPCCPU *cpu, target_ulong nip, target_ulong r3) { + PowerPCCPUClass *pcc = POWERPC_CPU_GET_CLASS(cpu); CPUPPCState *env = &cpu->env; env->nip = nip; env->gpr[3] = r3; CPU(cpu)->halted = 0; + /* Enable Power-saving mode Exit Cause exceptions */ + ppc_store_lpcr(cpu, env->spr[SPR_LPCR] | pcc->lpcr_pm); } static void spapr_cpu_destroy(PowerPCCPU *cpu) diff --git a/hw/ppc/spapr_rtas.c b/hw/ppc/spapr_rtas.c index 652233b..7f9738d 100644 --- a/hw/ppc/spapr_rtas.c +++ b/hw/ppc/spapr_rtas.c @@ -162,7 +162,7 @@ static void rtas_start_cpu(PowerPCCPU *callcpu, sPAPRMachineState *spapr, env->msr = (1ULL << MSR_SF) | (1ULL << MSR_ME); /* Enable Power-saving mode Exit Cause exceptions for the new CPU */ - lpcr = env->spr[SPR_LPCR] | pcc->lpcr_pm; + lpcr = env->spr[SPR_LPCR]; if (!pcc->interrupts_big_endian(callcpu)) { lpcr |= LPCR_ILE; } |