KVM: Clean up #includes

[powerpc.git] / drivers / kvm / mmu.c

diff --git a/drivers/kvm/mmu.c b/drivers/kvm/mmu.c
index f24b540..b297a6b 100644 (file)
--- a/drivers/kvm/mmu.c
+++ b/drivers/kvm/mmu.c
@@ -16,16 +16,18 @@
  * the COPYING file in the top-level directory.
  *
  */
+
+#include "vmx.h"
+#include "kvm.h"
+
 #include <linux/types.h>
 #include <linux/string.h>
-#include <asm/page.h>
 #include <linux/mm.h>
 #include <linux/highmem.h>
 #include <linux/module.h>
-#include <asm/cmpxchg.h>
 
-#include "vmx.h"
-#include "kvm.h"
+#include <asm/page.h>
+#include <asm/cmpxchg.h>
 
 #undef MMU_DEBUG
 
@@ -91,25 +93,11 @@ static int dbg = 1;
 #define PT32_DIR_PSE36_MASK (((1ULL << PT32_DIR_PSE36_SIZE) - 1) << PT32_DIR_PSE36_SHIFT)
 
 
-#define PT32_PTE_COPY_MASK \
-       (PT_PRESENT_MASK | PT_ACCESSED_MASK | PT_DIRTY_MASK | PT_GLOBAL_MASK)
-
-#define PT64_PTE_COPY_MASK (PT64_NX_MASK | PT32_PTE_COPY_MASK)
-
 #define PT_FIRST_AVAIL_BITS_SHIFT 9
 #define PT64_SECOND_AVAIL_BITS_SHIFT 52
 
-#define PT_SHADOW_PS_MARK (1ULL << PT_FIRST_AVAIL_BITS_SHIFT)
 #define PT_SHADOW_IO_MARK (1ULL << PT_FIRST_AVAIL_BITS_SHIFT)
 
-#define PT_SHADOW_WRITABLE_SHIFT (PT_FIRST_AVAIL_BITS_SHIFT + 1)
-#define PT_SHADOW_WRITABLE_MASK (1ULL << PT_SHADOW_WRITABLE_SHIFT)
-
-#define PT_SHADOW_USER_SHIFT (PT_SHADOW_WRITABLE_SHIFT + 1)
-#define PT_SHADOW_USER_MASK (1ULL << (PT_SHADOW_USER_SHIFT))
-
-#define PT_SHADOW_BITS_OFFSET (PT_SHADOW_WRITABLE_SHIFT - PT_WRITABLE_SHIFT)
-
 #define VALID_PAGE(x) ((x) != INVALID_PAGE)
 
 #define PT64_LEVEL_BITS 9
@@ -455,8 +443,8 @@ static void rmap_write_protect(struct kvm_vcpu *vcpu, u64 gfn)
                BUG_ON(!(*spte & PT_WRITABLE_MASK));
                rmap_printk("rmap_write_protect: spte %p %llx\n", spte, *spte);
                rmap_remove(vcpu, spte);
-               kvm_arch_ops->tlb_flush(vcpu);
                set_shadow_pte(spte, *spte & ~PT_WRITABLE_MASK);
+               kvm_flush_remote_tlbs(vcpu->kvm);
        }
 }
 
@@ -670,7 +658,7 @@ static void kvm_mmu_page_unlink_children(struct kvm_vcpu *vcpu,
                                rmap_remove(vcpu, &pt[i]);
                        pt[i] = 0;
                }
-               kvm_arch_ops->tlb_flush(vcpu);
+               kvm_flush_remote_tlbs(vcpu->kvm);
                return;
        }
 
@@ -683,6 +671,7 @@ static void kvm_mmu_page_unlink_children(struct kvm_vcpu *vcpu,
                ent &= PT64_BASE_ADDR_MASK;
                mmu_page_remove_parent_pte(vcpu, page_header(ent), &pt[i]);
        }
+       kvm_flush_remote_tlbs(vcpu->kvm);
 }
 
 static void kvm_mmu_put_page(struct kvm_vcpu *vcpu,
@@ -852,11 +841,12 @@ static void mmu_free_roots(struct kvm_vcpu *vcpu)
        int i;
        struct kvm_mmu_page *page;
 
+       if (!VALID_PAGE(vcpu->mmu.root_hpa))
+               return;
 #ifdef CONFIG_X86_64
        if (vcpu->mmu.shadow_root_level == PT64_ROOT_LEVEL) {
                hpa_t root = vcpu->mmu.root_hpa;
 
-               ASSERT(VALID_PAGE(root));
                page = page_header(root);
                --page->root_count;
                vcpu->mmu.root_hpa = INVALID_PAGE;
@@ -867,7 +857,6 @@ static void mmu_free_roots(struct kvm_vcpu *vcpu)
                hpa_t root = vcpu->mmu.pae_root[i];
 
                if (root) {
-                       ASSERT(VALID_PAGE(root));
                        root &= PT64_BASE_ADDR_MASK;
                        page = page_header(root);
                        --page->root_count;
@@ -963,9 +952,7 @@ static int nonpaging_init_context(struct kvm_vcpu *vcpu)
        context->free = nonpaging_free;
        context->root_level = 0;
        context->shadow_root_level = PT32E_ROOT_LEVEL;
-       mmu_alloc_roots(vcpu);
-       ASSERT(VALID_PAGE(context->root_hpa));
-       kvm_arch_ops->set_cr3(vcpu, context->root_hpa);
+       context->root_hpa = INVALID_PAGE;
        return 0;
 }
 
@@ -979,11 +966,6 @@ static void paging_new_cr3(struct kvm_vcpu *vcpu)
 {
        pgprintk("%s: cr3 %lx\n", __FUNCTION__, vcpu->cr3);
        mmu_free_roots(vcpu);
-       if (unlikely(vcpu->kvm->n_free_mmu_pages < KVM_MIN_FREE_MMU_PAGES))
-               kvm_mmu_free_some_pages(vcpu);
-       mmu_alloc_roots(vcpu);
-       kvm_mmu_flush_tlb(vcpu);
-       kvm_arch_ops->set_cr3(vcpu, vcpu->mmu.root_hpa);
 }
 
 static void inject_page_fault(struct kvm_vcpu *vcpu,
@@ -1017,10 +999,7 @@ static int paging64_init_context_common(struct kvm_vcpu *vcpu, int level)
        context->free = paging_free;
        context->root_level = level;
        context->shadow_root_level = level;
-       mmu_alloc_roots(vcpu);
-       ASSERT(VALID_PAGE(context->root_hpa));
-       kvm_arch_ops->set_cr3(vcpu, context->root_hpa |
-                   (vcpu->cr3 & (CR3_PCD_MASK | CR3_WPT_MASK)));
+       context->root_hpa = INVALID_PAGE;
        return 0;
 }
 
@@ -1039,10 +1018,7 @@ static int paging32_init_context(struct kvm_vcpu *vcpu)
        context->free = paging_free;
        context->root_level = PT32_ROOT_LEVEL;
        context->shadow_root_level = PT32E_ROOT_LEVEL;
-       mmu_alloc_roots(vcpu);
-       ASSERT(VALID_PAGE(context->root_hpa));
-       kvm_arch_ops->set_cr3(vcpu, context->root_hpa |
-                   (vcpu->cr3 & (CR3_PCD_MASK | CR3_WPT_MASK)));
+       context->root_hpa = INVALID_PAGE;
        return 0;
 }
 
@@ -1056,7 +1032,6 @@ static int init_kvm_mmu(struct kvm_vcpu *vcpu)
        ASSERT(vcpu);
        ASSERT(!VALID_PAGE(vcpu->mmu.root_hpa));
 
-       mmu_topup_memory_caches(vcpu);
        if (!is_paging(vcpu))
                return nonpaging_init_context(vcpu);
        else if (is_long_mode(vcpu))
@@ -1077,17 +1052,32 @@ static void destroy_kvm_mmu(struct kvm_vcpu *vcpu)
 }
 
 int kvm_mmu_reset_context(struct kvm_vcpu *vcpu)
+{
+       destroy_kvm_mmu(vcpu);
+       return init_kvm_mmu(vcpu);
+}
+
+int kvm_mmu_load(struct kvm_vcpu *vcpu)
 {
        int r;
 
-       destroy_kvm_mmu(vcpu);
-       r = init_kvm_mmu(vcpu);
-       if (r < 0)
-               goto out;
+       spin_lock(&vcpu->kvm->lock);
        r = mmu_topup_memory_caches(vcpu);
+       if (r)
+               goto out;
+       mmu_alloc_roots(vcpu);
+       kvm_arch_ops->set_cr3(vcpu, vcpu->mmu.root_hpa);
+       kvm_mmu_flush_tlb(vcpu);
 out:
+       spin_unlock(&vcpu->kvm->lock);
        return r;
 }
+EXPORT_SYMBOL_GPL(kvm_mmu_load);
+
+void kvm_mmu_unload(struct kvm_vcpu *vcpu)
+{
+       mmu_free_roots(vcpu);
+}
 
 static void mmu_pte_write_zap_pte(struct kvm_vcpu *vcpu,
                                  struct kvm_mmu_page *page,
@@ -1106,6 +1096,7 @@ static void mmu_pte_write_zap_pte(struct kvm_vcpu *vcpu,
                }
        }
        *spte = 0;
+       kvm_flush_remote_tlbs(vcpu->kvm);
 }
 
 static void mmu_pte_write_new_pte(struct kvm_vcpu *vcpu,
@@ -1321,7 +1312,7 @@ void kvm_mmu_zap_all(struct kvm_vcpu *vcpu)
        }
 
        mmu_free_memory_caches(vcpu);
-       kvm_arch_ops->tlb_flush(vcpu);
+       kvm_flush_remote_tlbs(vcpu->kvm);
        init_kvm_mmu(vcpu);
 }