diff options
Diffstat (limited to 'arch/powerpc/kvm/e500_tlb.c')
| -rw-r--r-- | arch/powerpc/kvm/e500_tlb.c | 26 |
1 files changed, 13 insertions, 13 deletions
diff --git a/arch/powerpc/kvm/e500_tlb.c b/arch/powerpc/kvm/e500_tlb.c index e0ab2160932..f1b37e0de86 100644 --- a/arch/powerpc/kvm/e500_tlb.c +++ b/arch/powerpc/kvm/e500_tlb.c @@ -112,13 +112,18 @@ static inline u32 e500_shadow_mas2_attrib(u32 mas2, int usermode) /* * writing shadow tlb entry to host TLB */ -static inline void __write_host_tlbe(struct tlbe *stlbe) +static inline void __write_host_tlbe(struct tlbe *stlbe, uint32_t mas0) { + unsigned long flags; + + local_irq_save(flags); + mtspr(SPRN_MAS0, mas0); mtspr(SPRN_MAS1, stlbe->mas1); mtspr(SPRN_MAS2, stlbe->mas2); mtspr(SPRN_MAS3, stlbe->mas3); mtspr(SPRN_MAS7, stlbe->mas7); - __asm__ __volatile__ ("tlbwe\n" : : ); + asm volatile("isync; tlbwe" : : : "memory"); + local_irq_restore(flags); } static inline void write_host_tlbe(struct kvmppc_vcpu_e500 *vcpu_e500, @@ -126,20 +131,15 @@ static inline void write_host_tlbe(struct kvmppc_vcpu_e500 *vcpu_e500, { struct tlbe *stlbe = &vcpu_e500->shadow_tlb[tlbsel][esel]; - local_irq_disable(); if (tlbsel == 0) { - __write_host_tlbe(stlbe); + __write_host_tlbe(stlbe, + MAS0_TLBSEL(0) | + MAS0_ESEL(esel & (KVM_E500_TLB0_WAY_NUM - 1))); } else { - unsigned register mas0; - - mas0 = mfspr(SPRN_MAS0); - - mtspr(SPRN_MAS0, MAS0_TLBSEL(1) | MAS0_ESEL(to_htlb1_esel(esel))); - __write_host_tlbe(stlbe); - - mtspr(SPRN_MAS0, mas0); + __write_host_tlbe(stlbe, + MAS0_TLBSEL(1) | + MAS0_ESEL(to_htlb1_esel(esel))); } - local_irq_enable(); } void kvmppc_e500_tlb_load(struct kvm_vcpu *vcpu, int cpu) |