KVM: MMU: More struct kvm_vcpu -> struct kvm cleanups

This time, the biggest change is gpa_to_hpa. The translation of GPA to HPA does
not depend on the VCPU state unlike GVA to GPA so there's no need to pass in
the kvm_vcpu.

Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>

drivers/kvm/kvm.h

@@ -554,7 +554,7 @@ void kvm_mmu_slot_remove_write_access(struct kvm *kvm, int slot);
 void kvm_mmu_zap_all(struct kvm *kvm);
 void kvm_mmu_change_mmu_pages(struct kvm *kvm, unsigned int kvm_nr_mmu_pages);
 
-hpa_t gpa_to_hpa(struct kvm_vcpu *vcpu, gpa_t gpa);
+hpa_t gpa_to_hpa(struct kvm *kvm, gpa_t gpa);
 #define HPA_MSB ((sizeof(hpa_t) * 8) - 1)
 #define HPA_ERR_MASK ((hpa_t)1 << HPA_MSB)
 static inline int is_error_hpa(hpa_t hpa) { return hpa >> HPA_MSB; }

drivers/kvm/mmu.c

@@ -451,14 +451,14 @@ static void rmap_remove(struct kvm *kvm, u64 *spte)
 	}
 }
 
-static void rmap_write_protect(struct kvm_vcpu *vcpu, u64 gfn)
+static void rmap_write_protect(struct kvm *kvm, u64 gfn)
 {
 	struct kvm_rmap_desc *desc;
 	unsigned long *rmapp;
 	u64 *spte;
 
-	gfn = unalias_gfn(vcpu->kvm, gfn);
-	rmapp = gfn_to_rmap(vcpu->kvm, gfn);
+	gfn = unalias_gfn(kvm, gfn);
+	rmapp = gfn_to_rmap(kvm, gfn);
 
 	while (*rmapp) {
 		if (!(*rmapp & 1))
@@ -471,9 +471,9 @@ static void rmap_write_protect(struct kvm_vcpu *vcpu, u64 gfn)
 		BUG_ON(!(*spte & PT_PRESENT_MASK));
 		BUG_ON(!(*spte & PT_WRITABLE_MASK));
 		rmap_printk("rmap_write_protect: spte %p %llx\n", spte, *spte);
-		rmap_remove(vcpu->kvm, spte);
+		rmap_remove(kvm, spte);
 		set_shadow_pte(spte, *spte & ~PT_WRITABLE_MASK);
-		kvm_flush_remote_tlbs(vcpu->kvm);
+		kvm_flush_remote_tlbs(kvm);
 	}
 }
 
@@ -670,7 +670,7 @@ static struct kvm_mmu_page *kvm_mmu_get_page(struct kvm_vcpu *vcpu,
 	hlist_add_head(&page->hash_link, bucket);
 	vcpu->mmu.prefetch_page(vcpu, page);
 	if (!metaphysical)
-		rmap_write_protect(vcpu, gfn);
+		rmap_write_protect(vcpu->kvm, gfn);
 	return page;
 }
 
@@ -823,19 +823,19 @@ static void page_header_update_slot(struct kvm *kvm, void *pte, gpa_t gpa)
 	__set_bit(slot, &page_head->slot_bitmap);
 }
 
-hpa_t safe_gpa_to_hpa(struct kvm_vcpu *vcpu, gpa_t gpa)
+hpa_t safe_gpa_to_hpa(struct kvm *kvm, gpa_t gpa)
 {
-	hpa_t hpa = gpa_to_hpa(vcpu, gpa);
+	hpa_t hpa = gpa_to_hpa(kvm, gpa);
 
 	return is_error_hpa(hpa) ? bad_page_address | (gpa & ~PAGE_MASK): hpa;
 }
 
-hpa_t gpa_to_hpa(struct kvm_vcpu *vcpu, gpa_t gpa)
+hpa_t gpa_to_hpa(struct kvm *kvm, gpa_t gpa)
 {
 	struct page *page;
 
 	ASSERT((gpa & HPA_ERR_MASK) == 0);
-	page = gfn_to_page(vcpu->kvm, gpa >> PAGE_SHIFT);
+	page = gfn_to_page(kvm, gpa >> PAGE_SHIFT);
 	if (!page)
 		return gpa | HPA_ERR_MASK;
 	return ((hpa_t)page_to_pfn(page) << PAGE_SHIFT)
@@ -848,7 +848,7 @@ hpa_t gva_to_hpa(struct kvm_vcpu *vcpu, gva_t gva)
 
 	if (gpa == UNMAPPED_GVA)
 		return UNMAPPED_GVA;
-	return gpa_to_hpa(vcpu, gpa);
+	return gpa_to_hpa(vcpu->kvm, gpa);
 }
 
 struct page *gva_to_page(struct kvm_vcpu *vcpu, gva_t gva)
@@ -857,7 +857,7 @@ struct page *gva_to_page(struct kvm_vcpu *vcpu, gva_t gva)
 
 	if (gpa == UNMAPPED_GVA)
 		return NULL;
-	return pfn_to_page(gpa_to_hpa(vcpu, gpa) >> PAGE_SHIFT);
+	return pfn_to_page(gpa_to_hpa(vcpu->kvm, gpa) >> PAGE_SHIFT);
 }
 
 static void nonpaging_new_cr3(struct kvm_vcpu *vcpu)
@@ -1012,7 +1012,7 @@ static int nonpaging_page_fault(struct kvm_vcpu *vcpu, gva_t gva,
 	ASSERT(VALID_PAGE(vcpu->mmu.root_hpa));
 
 
-	paddr = gpa_to_hpa(vcpu , addr & PT64_BASE_ADDR_MASK);
+	paddr = gpa_to_hpa(vcpu->kvm, addr & PT64_BASE_ADDR_MASK);
 
 	if (is_error_hpa(paddr))
 		return 1;

drivers/kvm/paging_tmpl.h

@@ -103,7 +103,7 @@ static int FNAME(walk_addr)(struct guest_walker *walker,
 	pgprintk("%s: table_gfn[%d] %lx\n", __FUNCTION__,
 		 walker->level - 1, table_gfn);
 	slot = gfn_to_memslot(vcpu->kvm, table_gfn);
-	hpa = safe_gpa_to_hpa(vcpu, root & PT64_BASE_ADDR_MASK);
+	hpa = safe_gpa_to_hpa(vcpu->kvm, root & PT64_BASE_ADDR_MASK);
 	walker->page = pfn_to_page(hpa >> PAGE_SHIFT);
 	walker->table = kmap_atomic(walker->page, KM_USER0);
 
@@ -159,7 +159,7 @@ static int FNAME(walk_addr)(struct guest_walker *walker,
 		walker->inherited_ar &= walker->table[index];
 		table_gfn = (*ptep & PT_BASE_ADDR_MASK) >> PAGE_SHIFT;
 		kunmap_atomic(walker->table, KM_USER0);
-		paddr = safe_gpa_to_hpa(vcpu, table_gfn << PAGE_SHIFT);
+		paddr = safe_gpa_to_hpa(vcpu->kvm, table_gfn << PAGE_SHIFT);
 		walker->page = pfn_to_page(paddr >> PAGE_SHIFT);
 		walker->table = kmap_atomic(walker->page, KM_USER0);
 		--walker->level;
@@ -248,7 +248,7 @@ static void FNAME(set_pte_common)(struct kvm_vcpu *vcpu,
 	if (!dirty)
 		access_bits &= ~PT_WRITABLE_MASK;
 
-	paddr = gpa_to_hpa(vcpu, gaddr & PT64_BASE_ADDR_MASK);
+	paddr = gpa_to_hpa(vcpu->kvm, gaddr & PT64_BASE_ADDR_MASK);
 
 	spte |= PT_PRESENT_MASK;
 	if (access_bits & PT_USER_MASK)