diff options
| author | Nicholas Piggin <npiggin@gmail.com> | 2018-05-09 04:20:14 +0200 |
|---|---|---|
| committer | Paul Mackerras <paulus@ozlabs.org> | 2018-05-17 07:16:53 +0200 |
| commit | e2560b108fb1375b5fab196c1ec0d910bbe8a38b (patch) | |
| tree | e8dda185828c8495592d6620104733018e1399a6 /arch/powerpc | |
| parent | KVM: PPC: Book3S HV: Snapshot timebase offset on guest entry (diff) | |
| download | linux-e2560b108fb1375b5fab196c1ec0d910bbe8a38b.tar.xz linux-e2560b108fb1375b5fab196c1ec0d910bbe8a38b.zip | |
KVM: PPC: Book3S HV: Make radix use correct tlbie sequence in kvmppc_radix_tlbie_page
The standard eieio ; tlbsync ; ptesync must follow tlbie to ensure it
is ordered with respect to subsequent operations.
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Paul Mackerras <paulus@ozlabs.org>
Diffstat (limited to 'arch/powerpc')
| -rw-r--r-- | arch/powerpc/kvm/book3s_64_mmu_radix.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/powerpc/kvm/book3s_64_mmu_radix.c b/arch/powerpc/kvm/book3s_64_mmu_radix.c index a57eafec4dc2..a6870288c0e0 100644 --- a/arch/powerpc/kvm/book3s_64_mmu_radix.c +++ b/arch/powerpc/kvm/book3s_64_mmu_radix.c @@ -162,7 +162,7 @@ static void kvmppc_radix_tlbie_page(struct kvm *kvm, unsigned long addr, if (cpu_has_feature(CPU_FTR_P9_TLBIE_BUG)) asm volatile(PPC_TLBIE_5(%0, %1, 0, 0, 1) : : "r" (addr), "r" (kvm->arch.lpid) : "memory"); - asm volatile("ptesync": : :"memory"); + asm volatile("eieio ; tlbsync ; ptesync": : :"memory"); } static void kvmppc_radix_flush_pwc(struct kvm *kvm, unsigned long addr) @@ -173,7 +173,7 @@ static void kvmppc_radix_flush_pwc(struct kvm *kvm, unsigned long addr) /* RIC=1 PRS=0 R=1 IS=2 */ asm volatile(PPC_TLBIE_5(%0, %1, 1, 0, 1) : : "r" (rb), "r" (kvm->arch.lpid) : "memory"); - asm volatile("ptesync": : :"memory"); + asm volatile("eieio ; tlbsync ; ptesync": : :"memory"); } unsigned long kvmppc_radix_update_pte(struct kvm *kvm, pte_t *ptep, |