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Subject[PATCH 30/50] KVM: MMU: More struct kvm_vcpu -> struct kvm cleanups
Date
From: Anthony Liguori <aliguori@us.ibm.com>

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 | 2 +-
drivers/kvm/mmu.c | 26 +++++++++++++-------------
drivers/kvm/paging_tmpl.h | 6 +++---
3 files changed, 17 insertions(+), 17 deletions(-)
diff --git a/drivers/kvm/kvm.h b/drivers/kvm/kvm.h
index 9c9c1d7..d56962d 100644
--- a/drivers/kvm/kvm.h
+++ b/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; }
diff --git a/drivers/kvm/mmu.c b/drivers/kvm/mmu.c
index a5ca945..d046ba8 100644
--- a/drivers/kvm/mmu.c
+++ b/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;
diff --git a/drivers/kvm/paging_tmpl.h b/drivers/kvm/paging_tmpl.h
index 4f6edf8..8e1e4ca 100644
--- a/drivers/kvm/paging_tmpl.h
+++ b/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)
--
1.5.3.7


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