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| author | Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> | 2013-06-20 14:30:13 +0530 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2013-06-21 16:01:52 +1000 |
| commit | db3d8534903c8a9617142975bec6db95acaba753 (patch) | |
| tree | eea268dcfdd5cce84aa9b32025528dbc2d71d5aa /arch/powerpc/kvm | |
| parent | 8998897b8f966c9036307b5130494d4bf1e6cb18 (diff) | |
| download | op-kernel-dev-db3d8534903c8a9617142975bec6db95acaba753.zip op-kernel-dev-db3d8534903c8a9617142975bec6db95acaba753.tar.gz | |
powerpc/mm: handle hugepage size correctly when invalidating hpte entries
If a hash bucket gets full, we "evict" a more/less random entry from it.
When we do that we don't invalidate the TLB (hpte_remove) because we assume
the old translation is still technically "valid". This implies that when
we are invalidating or updating pte, even if HPTE entry is not valid
we should do a tlb invalidate. With hugepages, we need to pass the correct
actual page size value for tlb invalidation.
This change update the patch 0608d692463598c1d6e826d9dd7283381b4f246c
"powerpc/mm: Always invalidate tlb on hpte invalidate and update" to handle
transparent hugepages correctly.
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/kvm')
| -rw-r--r-- | arch/powerpc/kvm/book3s_64_mmu_host.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/powerpc/kvm/book3s_64_mmu_host.c b/arch/powerpc/kvm/book3s_64_mmu_host.c index 3a9a1ac..176d3fd 100644 --- a/arch/powerpc/kvm/book3s_64_mmu_host.c +++ b/arch/powerpc/kvm/book3s_64_mmu_host.c @@ -34,7 +34,7 @@ void kvmppc_mmu_invalidate_pte(struct kvm_vcpu *vcpu, struct hpte_cache *pte) { ppc_md.hpte_invalidate(pte->slot, pte->host_vpn, - MMU_PAGE_4K, MMU_SEGSIZE_256M, + MMU_PAGE_4K, MMU_PAGE_4K, MMU_SEGSIZE_256M, false); } |
