Commit e4b35cc9 authored by Takuya Yoshikawa's avatar Takuya Yoshikawa Committed by Avi Kivity
Browse files

KVM: MMU: Remove unused kvm parameter from rmap_next() 



Signed-off-by: default avatarTakuya Yoshikawa <yoshikawa.takuya@oss.ntt.co.jp>
Signed-off-by: default avatarMarcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: default avatarAvi Kivity <avi@redhat.com>
parent 9373e2c0

arch/x86/kvm/mmu.c

+13 −13
Original line number Diff line number Diff line
@@ -988,7 +988,7 @@ static int rmap_add(struct kvm_vcpu *vcpu, u64 *spte, gfn_t gfn) 
	return pte_list_add(vcpu, spte, rmapp);

}



static u64 *rmap_next(struct kvm *kvm, unsigned long *rmapp, u64 *spte)

static u64 *rmap_next(unsigned long *rmapp, u64 *spte)

{

	return pte_list_next(rmapp, spte);

}
@@ -1019,7 +1019,7 @@ int kvm_mmu_rmap_write_protect(struct kvm *kvm, u64 gfn, 
	int i, write_protected = 0;



	rmapp = __gfn_to_rmap(gfn, PT_PAGE_TABLE_LEVEL, slot);

	spte = rmap_next(kvm, rmapp, NULL);

	spte = rmap_next(rmapp, NULL);

	while (spte) {

		BUG_ON(!(*spte & PT_PRESENT_MASK));

		rmap_printk("rmap_write_protect: spte %p %llx\n", spte, *spte);
@@ -1027,14 +1027,14 @@ int kvm_mmu_rmap_write_protect(struct kvm *kvm, u64 gfn, 
			mmu_spte_update(spte, *spte & ~PT_WRITABLE_MASK);

			write_protected = 1;

		}

		spte = rmap_next(kvm, rmapp, spte);

		spte = rmap_next(rmapp, spte);

	}



	/* check for huge page mappings */

	for (i = PT_DIRECTORY_LEVEL;

	     i < PT_PAGE_TABLE_LEVEL + KVM_NR_PAGE_SIZES; ++i) {

		rmapp = __gfn_to_rmap(gfn, i, slot);

		spte = rmap_next(kvm, rmapp, NULL);

		spte = rmap_next(rmapp, NULL);

		while (spte) {

			BUG_ON(!(*spte & PT_PRESENT_MASK));

			BUG_ON(!is_large_pte(*spte));
@@ -1045,7 +1045,7 @@ int kvm_mmu_rmap_write_protect(struct kvm *kvm, u64 gfn, 
				spte = NULL;

				write_protected = 1;

			}

			spte = rmap_next(kvm, rmapp, spte);

			spte = rmap_next(rmapp, spte);

		}

	}
@@ -1066,7 +1066,7 @@ static int kvm_unmap_rmapp(struct kvm *kvm, unsigned long *rmapp, 
	u64 *spte;

	int need_tlb_flush = 0;



	while ((spte = rmap_next(kvm, rmapp, NULL))) {

	while ((spte = rmap_next(rmapp, NULL))) {

		BUG_ON(!(*spte & PT_PRESENT_MASK));

		rmap_printk("kvm_rmap_unmap_hva: spte %p %llx\n", spte, *spte);

		drop_spte(kvm, spte);
@@ -1085,14 +1085,14 @@ static int kvm_set_pte_rmapp(struct kvm *kvm, unsigned long *rmapp, 


	WARN_ON(pte_huge(*ptep));

	new_pfn = pte_pfn(*ptep);

	spte = rmap_next(kvm, rmapp, NULL);

	spte = rmap_next(rmapp, NULL);

	while (spte) {

		BUG_ON(!is_shadow_present_pte(*spte));

		rmap_printk("kvm_set_pte_rmapp: spte %p %llx\n", spte, *spte);

		need_flush = 1;

		if (pte_write(*ptep)) {

			drop_spte(kvm, spte);

			spte = rmap_next(kvm, rmapp, NULL);

			spte = rmap_next(rmapp, NULL);

		} else {

			new_spte = *spte &~ (PT64_BASE_ADDR_MASK);

			new_spte |= (u64)new_pfn << PAGE_SHIFT;
@@ -1102,7 +1102,7 @@ static int kvm_set_pte_rmapp(struct kvm *kvm, unsigned long *rmapp, 
			new_spte &= ~shadow_accessed_mask;

			mmu_spte_clear_track_bits(spte);

			mmu_spte_set(spte, new_spte);

			spte = rmap_next(kvm, rmapp, spte);

			spte = rmap_next(rmapp, spte);

		}

	}

	if (need_flush)
@@ -1176,7 +1176,7 @@ static int kvm_age_rmapp(struct kvm *kvm, unsigned long *rmapp, 
	if (!shadow_accessed_mask)

		return kvm_unmap_rmapp(kvm, rmapp, data);



	spte = rmap_next(kvm, rmapp, NULL);

	spte = rmap_next(rmapp, NULL);

	while (spte) {

		int _young;

		u64 _spte = *spte;
@@ -1186,7 +1186,7 @@ static int kvm_age_rmapp(struct kvm *kvm, unsigned long *rmapp, 
			young = 1;

			clear_bit(PT_ACCESSED_SHIFT, (unsigned long *)spte);

		}

		spte = rmap_next(kvm, rmapp, spte);

		spte = rmap_next(rmapp, spte);

	}

	return young;

}
@@ -1205,7 +1205,7 @@ static int kvm_test_age_rmapp(struct kvm *kvm, unsigned long *rmapp, 
	if (!shadow_accessed_mask)

		goto out;



	spte = rmap_next(kvm, rmapp, NULL);

	spte = rmap_next(rmapp, NULL);

	while (spte) {

		u64 _spte = *spte;

		BUG_ON(!(_spte & PT_PRESENT_MASK));
@@ -1214,7 +1214,7 @@ static int kvm_test_age_rmapp(struct kvm *kvm, unsigned long *rmapp, 
			young = 1;

			break;

		}

		spte = rmap_next(kvm, rmapp, spte);

		spte = rmap_next(rmapp, spte);

	}

out:

	return young;

arch/x86/kvm/mmu_audit.c

+2 −2
Original line number Diff line number Diff line
@@ -200,13 +200,13 @@ static void audit_write_protection(struct kvm *kvm, struct kvm_mmu_page *sp) 
	slot = gfn_to_memslot(kvm, sp->gfn);

	rmapp = &slot->rmap[sp->gfn - slot->base_gfn];



	spte = rmap_next(kvm, rmapp, NULL);

	spte = rmap_next(rmapp, NULL);

	while (spte) {

		if (is_writable_pte(*spte))

			audit_printk(kvm, "shadow page has writable "

				     "mappings: gfn %llx role %x\n",

				     sp->gfn, sp->role.word);

		spte = rmap_next(kvm, rmapp, spte);

		spte = rmap_next(rmapp, spte);

	}

}