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| author | Takuya Yoshikawa <yoshikawa.takuya@oss.ntt.co.jp> | 2012-08-01 18:03:28 +0900 |
|---|---|---|
| committer | Avi Kivity <avi@redhat.com> | 2012-08-06 12:47:30 +0300 |
| commit | d89cc617b954aff4030fce178f7d86f59aaf713d (patch) | |
| tree | d04f2ccdddd1d718044f47fdf8442054d87799f6 /arch/powerpc/kvm/book3s_64_mmu_hv.c | |
| parent | 65fbe37c42ed75604c9a770639209dcee162ebe7 (diff) | |
| download | lwn-d89cc617b954aff4030fce178f7d86f59aaf713d.tar.gz lwn-d89cc617b954aff4030fce178f7d86f59aaf713d.zip | |
KVM: Push rmap into kvm_arch_memory_slot
Two reasons:
- x86 can integrate rmap and rmap_pde and remove heuristics in
__gfn_to_rmap().
- Some architectures do not need rmap.
Since rmap is one of the most memory consuming stuff in KVM, ppc'd
better restrict the allocation to Book3S HV.
Signed-off-by: Takuya Yoshikawa <yoshikawa.takuya@oss.ntt.co.jp>
Acked-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Avi Kivity <avi@redhat.com>
Diffstat (limited to 'arch/powerpc/kvm/book3s_64_mmu_hv.c')
| -rw-r--r-- | arch/powerpc/kvm/book3s_64_mmu_hv.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/arch/powerpc/kvm/book3s_64_mmu_hv.c b/arch/powerpc/kvm/book3s_64_mmu_hv.c index 3c635c0616b0..d95d11322a15 100644 --- a/arch/powerpc/kvm/book3s_64_mmu_hv.c +++ b/arch/powerpc/kvm/book3s_64_mmu_hv.c @@ -705,7 +705,7 @@ int kvmppc_book3s_hv_page_fault(struct kvm_run *run, struct kvm_vcpu *vcpu, goto out_unlock; hpte[0] = (hpte[0] & ~HPTE_V_ABSENT) | HPTE_V_VALID; - rmap = &memslot->rmap[gfn - memslot->base_gfn]; + rmap = &memslot->arch.rmap[gfn - memslot->base_gfn]; lock_rmap(rmap); /* Check if we might have been invalidated; let the guest retry if so */ @@ -788,7 +788,7 @@ static int kvm_handle_hva_range(struct kvm *kvm, for (; gfn < gfn_end; ++gfn) { gfn_t gfn_offset = gfn - memslot->base_gfn; - ret = handler(kvm, &memslot->rmap[gfn_offset], gfn); + ret = handler(kvm, &memslot->arch.rmap[gfn_offset], gfn); retval |= ret; } } @@ -1036,7 +1036,7 @@ long kvmppc_hv_get_dirty_log(struct kvm *kvm, struct kvm_memory_slot *memslot) unsigned long *rmapp, *map; preempt_disable(); - rmapp = memslot->rmap; + rmapp = memslot->arch.rmap; map = memslot->dirty_bitmap; for (i = 0; i < memslot->npages; ++i) { if (kvm_test_clear_dirty(kvm, rmapp)) |