From: Nicholas Piggin <npiggin@gmail.com>
To: kvm-ppc@vger.kernel.org
Cc: Nicholas Piggin <npiggin@gmail.com>, linuxppc-dev@lists.ozlabs.org
Subject: [PATCH v2 1/5] KVM: PPC: Book3S HV: radix use correct tlbie sequence in kvmppc_radix_tlbie_page
Date: Mon, 16 Apr 2018 04:32:36 +0000 [thread overview]
Message-ID: <20180416043240.8796-2-npiggin@gmail.com> (raw)
In-Reply-To: <20180416043240.8796-1-npiggin@gmail.com>
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>
---
arch/powerpc/kvm/book3s_64_mmu_radix.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/powerpc/kvm/book3s_64_mmu_radix.c b/arch/powerpc/kvm/book3s_64_mmu_radix.c
index 5d9bafe9a371..81d5ad26f9a1 100644
--- a/arch/powerpc/kvm/book3s_64_mmu_radix.c
+++ b/arch/powerpc/kvm/book3s_64_mmu_radix.c
@@ -160,7 +160,7 @@ 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");
}
unsigned long kvmppc_radix_update_pte(struct kvm *kvm, pte_t *ptep,
--
2.17.0
WARNING: multiple messages have this Message-ID (diff)
From: Nicholas Piggin <npiggin@gmail.com>
To: kvm-ppc@vger.kernel.org
Cc: Nicholas Piggin <npiggin@gmail.com>, linuxppc-dev@lists.ozlabs.org
Subject: [PATCH v2 1/5] KVM: PPC: Book3S HV: radix use correct tlbie sequence in kvmppc_radix_tlbie_page
Date: Mon, 16 Apr 2018 14:32:36 +1000 [thread overview]
Message-ID: <20180416043240.8796-2-npiggin@gmail.com> (raw)
In-Reply-To: <20180416043240.8796-1-npiggin@gmail.com>
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>
---
arch/powerpc/kvm/book3s_64_mmu_radix.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/powerpc/kvm/book3s_64_mmu_radix.c b/arch/powerpc/kvm/book3s_64_mmu_radix.c
index 5d9bafe9a371..81d5ad26f9a1 100644
--- a/arch/powerpc/kvm/book3s_64_mmu_radix.c
+++ b/arch/powerpc/kvm/book3s_64_mmu_radix.c
@@ -160,7 +160,7 @@ 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");
}
unsigned long kvmppc_radix_update_pte(struct kvm *kvm, pte_t *ptep,
--
2.17.0
next prev parent reply other threads:[~2018-04-16 4:32 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-04-16 4:32 [PATCH v2 0/5] KVM TLB flushing improvements (for radix) Nicholas Piggin
2018-04-16 4:32 ` Nicholas Piggin
2018-04-16 4:32 ` Nicholas Piggin [this message]
2018-04-16 4:32 ` [PATCH v2 1/5] KVM: PPC: Book3S HV: radix use correct tlbie sequence in kvmppc_radix_tlbie_page Nicholas Piggin
2018-04-16 4:32 ` [PATCH v2 2/5] powerpc/mm/radix: implement LPID based TLB flushes to be used by KVM Nicholas Piggin
2018-04-16 4:32 ` Nicholas Piggin
2018-04-16 4:32 ` [PATCH v2 3/5] KVM: PPC: Book3S HV: radix use the Linux TLB flush function in kvmppc_radix_tlbie_pag Nicholas Piggin
2018-04-16 4:32 ` [PATCH v2 3/5] KVM: PPC: Book3S HV: radix use the Linux TLB flush function in kvmppc_radix_tlbie_page Nicholas Piggin
2018-04-16 4:32 ` [PATCH v2 4/5] KVM: PPC: Book3S HV: radix handle process scoped LPID flush in C, with relocation on Nicholas Piggin
2018-04-16 4:32 ` Nicholas Piggin
2018-04-16 4:32 ` [PATCH v2 5/5] KVM: PPC: Book3S HV: radix do not clear partition scoped page table when page fault r Nicholas Piggin
2018-04-16 4:32 ` [PATCH v2 5/5] KVM: PPC: Book3S HV: radix do not clear partition scoped page table when page fault races with other vCPUs Nicholas Piggin
2018-04-17 0:17 ` [PATCH v2 5/5] KVM: PPC: Book3S HV: radix do not clear partition scoped page table when page fau Nicholas Piggin
2018-04-17 0:17 ` [PATCH v2 5/5] KVM: PPC: Book3S HV: radix do not clear partition scoped page table when page fault races with other vCPUs Nicholas Piggin
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