Commit 68a99f6d authored by Ingo Molnar's avatar Ingo Molnar Committed by Linus Torvalds
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[PATCH] KVM: Simplify mmu_alloc_roots() 



Small optimization/cleanup:

    page == page_header(page->page_hpa)

Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
Signed-off-by: default avatarAvi Kivity <avi@qumranet.com>
Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
parent d21225ee

drivers/kvm/mmu.c

+6 −6
Original line number Diff line number Diff line
@@ -820,9 +820,9 @@ static void mmu_alloc_roots(struct kvm_vcpu *vcpu) 
		hpa_t root = vcpu->mmu.root_hpa;



		ASSERT(!VALID_PAGE(root));

		root = kvm_mmu_get_page(vcpu, root_gfn, 0,

					PT64_ROOT_LEVEL, 0, NULL)->page_hpa;

		page = page_header(root);

		page = kvm_mmu_get_page(vcpu, root_gfn, 0,

					PT64_ROOT_LEVEL, 0, NULL);

		root = page->page_hpa;

		++page->root_count;

		vcpu->mmu.root_hpa = root;

		return;
@@ -836,10 +836,10 @@ static void mmu_alloc_roots(struct kvm_vcpu *vcpu) 
			root_gfn = vcpu->pdptrs[i] >> PAGE_SHIFT;

		else if (vcpu->mmu.root_level == 0)

			root_gfn = 0;

		root = kvm_mmu_get_page(vcpu, root_gfn, i << 30,

		page = kvm_mmu_get_page(vcpu, root_gfn, i << 30,

					PT32_ROOT_LEVEL, !is_paging(vcpu),

					NULL)->page_hpa;

		page = page_header(root);

					NULL);

		root = page->page_hpa;

		++page->root_count;

		vcpu->mmu.pae_root[i] = root | PT_PRESENT_MASK;

	}