From 5524a27d39b68770f203d8d42eb5a95dde4933bc Mon Sep 17 00:00:00 2001 From: "Aneesh Kumar K.V" Date: Mon, 10 Sep 2012 02:52:50 +0000 Subject: 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 Signed-off-by: Aneesh Kumar K.V Signed-off-by: Benjamin Herrenschmidt --- arch/powerpc/kvm/book3s_32_mmu_host.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) (limited to 'arch/powerpc/kvm/book3s_32_mmu_host.c') diff --git a/arch/powerpc/kvm/book3s_32_mmu_host.c b/arch/powerpc/kvm/book3s_32_mmu_host.c index 837f13e7b6bf..00aa61268e0d 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; -- cgit v1.2.3