diff options
author | Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> | 2012-09-10 02:52:50 (GMT) |
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committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2012-09-17 06:31:49 (GMT) |
commit | 5524a27d39b68770f203d8d42eb5a95dde4933bc (patch) | |
tree | a238d67d29bce6fd893cd4c5545b5daf058ba5fd /arch/powerpc/kvm | |
parent | dcda287a9b26309ae43a091d0ecde16f8f61b4c0 (diff) | |
download | linux-5524a27d39b68770f203d8d42eb5a95dde4933bc.tar.xz |
powerpc/mm: Convert virtual address to vpn
This patch convert different functions to take virtual page number
instead of virtual address. Virtual page number is virtual address
shifted right by VPN_SHIFT (12) bits. This enable us to have an
address range of upto 76 bits.
Reviewed-by: Paul Mackerras <paulus@samba.org>
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_32_mmu_host.c | 8 | ||||
-rw-r--r-- | arch/powerpc/kvm/book3s_64_mmu_host.c | 17 | ||||
-rw-r--r-- | arch/powerpc/kvm/trace.h | 14 |
3 files changed, 21 insertions, 18 deletions
diff --git a/arch/powerpc/kvm/book3s_32_mmu_host.c b/arch/powerpc/kvm/book3s_32_mmu_host.c index 837f13e..00aa612 100644 --- a/arch/powerpc/kvm/book3s_32_mmu_host.c +++ b/arch/powerpc/kvm/book3s_32_mmu_host.c @@ -141,7 +141,7 @@ extern char etext[]; int kvmppc_mmu_map_page(struct kvm_vcpu *vcpu, struct kvmppc_pte *orig_pte) { pfn_t hpaddr; - u64 va; + u64 vpn; u64 vsid; struct kvmppc_sid_map *map; volatile u32 *pteg; @@ -173,7 +173,7 @@ int kvmppc_mmu_map_page(struct kvm_vcpu *vcpu, struct kvmppc_pte *orig_pte) BUG_ON(!map); vsid = map->host_vsid; - va = (vsid << SID_SHIFT) | (eaddr & ~ESID_MASK); + vpn = (vsid << (SID_SHIFT - VPN_SHIFT)) | ((eaddr & ~ESID_MASK) >> VPN_SHIFT) next_pteg: if (rr == 16) { @@ -244,11 +244,11 @@ next_pteg: dprintk_mmu("KVM: %c%c Map 0x%llx: [%lx] 0x%llx (0x%llx) -> %lx\n", orig_pte->may_write ? 'w' : '-', orig_pte->may_execute ? 'x' : '-', - orig_pte->eaddr, (ulong)pteg, va, + orig_pte->eaddr, (ulong)pteg, vpn, orig_pte->vpage, hpaddr); pte->slot = (ulong)&pteg[rr]; - pte->host_va = va; + pte->host_vpn = vpn; pte->pte = *orig_pte; pte->pfn = hpaddr >> PAGE_SHIFT; diff --git a/arch/powerpc/kvm/book3s_64_mmu_host.c b/arch/powerpc/kvm/book3s_64_mmu_host.c index 0688b6b..4d72f9e 100644 --- a/arch/powerpc/kvm/book3s_64_mmu_host.c +++ b/arch/powerpc/kvm/book3s_64_mmu_host.c @@ -33,7 +33,7 @@ void kvmppc_mmu_invalidate_pte(struct kvm_vcpu *vcpu, struct hpte_cache *pte) { - ppc_md.hpte_invalidate(pte->slot, pte->host_va, + ppc_md.hpte_invalidate(pte->slot, pte->host_vpn, MMU_PAGE_4K, MMU_SEGSIZE_256M, false); } @@ -80,8 +80,9 @@ static struct kvmppc_sid_map *find_sid_vsid(struct kvm_vcpu *vcpu, u64 gvsid) int kvmppc_mmu_map_page(struct kvm_vcpu *vcpu, struct kvmppc_pte *orig_pte) { + unsigned long vpn; pfn_t hpaddr; - ulong hash, hpteg, va; + ulong hash, hpteg; u64 vsid; int ret; int rflags = 0x192; @@ -117,7 +118,7 @@ int kvmppc_mmu_map_page(struct kvm_vcpu *vcpu, struct kvmppc_pte *orig_pte) } vsid = map->host_vsid; - va = hpt_va(orig_pte->eaddr, vsid, MMU_SEGSIZE_256M); + vpn = hpt_vpn(orig_pte->eaddr, vsid, MMU_SEGSIZE_256M); if (!orig_pte->may_write) rflags |= HPTE_R_PP; @@ -129,7 +130,7 @@ int kvmppc_mmu_map_page(struct kvm_vcpu *vcpu, struct kvmppc_pte *orig_pte) else kvmppc_mmu_flush_icache(hpaddr >> PAGE_SHIFT); - hash = hpt_hash(va, PTE_SIZE, MMU_SEGSIZE_256M); + hash = hpt_hash(vpn, PTE_SIZE, MMU_SEGSIZE_256M); map_again: hpteg = ((hash & htab_hash_mask) * HPTES_PER_GROUP); @@ -141,7 +142,8 @@ map_again: goto out; } - ret = ppc_md.hpte_insert(hpteg, va, hpaddr, rflags, vflags, MMU_PAGE_4K, MMU_SEGSIZE_256M); + ret = ppc_md.hpte_insert(hpteg, vpn, hpaddr, rflags, vflags, + MMU_PAGE_4K, MMU_SEGSIZE_256M); if (ret < 0) { /* If we couldn't map a primary PTE, try a secondary */ @@ -152,7 +154,8 @@ map_again: } else { struct hpte_cache *pte = kvmppc_mmu_hpte_cache_next(vcpu); - trace_kvm_book3s_64_mmu_map(rflags, hpteg, va, hpaddr, orig_pte); + trace_kvm_book3s_64_mmu_map(rflags, hpteg, + vpn, hpaddr, orig_pte); /* The ppc_md code may give us a secondary entry even though we asked for a primary. Fix up. */ @@ -162,7 +165,7 @@ map_again: } pte->slot = hpteg + (ret & 7); - pte->host_va = va; + pte->host_vpn = vpn; pte->pte = *orig_pte; pte->pfn = hpaddr >> PAGE_SHIFT; diff --git a/arch/powerpc/kvm/trace.h b/arch/powerpc/kvm/trace.h index 877186b..ddb6a21 100644 --- a/arch/powerpc/kvm/trace.h +++ b/arch/powerpc/kvm/trace.h @@ -189,7 +189,7 @@ TRACE_EVENT(kvm_book3s_mmu_map, TP_ARGS(pte), TP_STRUCT__entry( - __field( u64, host_va ) + __field( u64, host_vpn ) __field( u64, pfn ) __field( ulong, eaddr ) __field( u64, vpage ) @@ -198,7 +198,7 @@ TRACE_EVENT(kvm_book3s_mmu_map, ), TP_fast_assign( - __entry->host_va = pte->host_va; + __entry->host_vpn = pte->host_vpn; __entry->pfn = pte->pfn; __entry->eaddr = pte->pte.eaddr; __entry->vpage = pte->pte.vpage; @@ -208,8 +208,8 @@ TRACE_EVENT(kvm_book3s_mmu_map, (pte->pte.may_execute ? 0x1 : 0); ), - TP_printk("Map: hva=%llx pfn=%llx ea=%lx vp=%llx ra=%lx [%x]", - __entry->host_va, __entry->pfn, __entry->eaddr, + TP_printk("Map: hvpn=%llx pfn=%llx ea=%lx vp=%llx ra=%lx [%x]", + __entry->host_vpn, __entry->pfn, __entry->eaddr, __entry->vpage, __entry->raddr, __entry->flags) ); @@ -218,7 +218,7 @@ TRACE_EVENT(kvm_book3s_mmu_invalidate, TP_ARGS(pte), TP_STRUCT__entry( - __field( u64, host_va ) + __field( u64, host_vpn ) __field( u64, pfn ) __field( ulong, eaddr ) __field( u64, vpage ) @@ -227,7 +227,7 @@ TRACE_EVENT(kvm_book3s_mmu_invalidate, ), TP_fast_assign( - __entry->host_va = pte->host_va; + __entry->host_vpn = pte->host_vpn; __entry->pfn = pte->pfn; __entry->eaddr = pte->pte.eaddr; __entry->vpage = pte->pte.vpage; @@ -238,7 +238,7 @@ TRACE_EVENT(kvm_book3s_mmu_invalidate, ), TP_printk("Flush: hva=%llx pfn=%llx ea=%lx vp=%llx ra=%lx [%x]", - __entry->host_va, __entry->pfn, __entry->eaddr, + __entry->host_vpn, __entry->pfn, __entry->eaddr, __entry->vpage, __entry->raddr, __entry->flags) ); |