KVM: Simply gfn_to_page()

[karo-tx-linux.git] / drivers / kvm / kvm.h

diff --git a/drivers/kvm/kvm.h b/drivers/kvm/kvm.h
index 0d122bf889db314195ce28314d5ceb717ced2db3..d19985a5508aa7c390c76f0c9687dee40bd73c7e 100644 (file)
--- a/drivers/kvm/kvm.h
+++ b/drivers/kvm/kvm.h
@@ -55,6 +55,7 @@
 #define KVM_NUM_MMU_PAGES 256
 #define KVM_MIN_FREE_MMU_PAGES 5
 #define KVM_REFILL_PAGES 25
+#define KVM_MAX_CPUID_ENTRIES 40
 
 #define FX_IMAGE_SIZE 512
 #define FX_IMAGE_ALIGN 16
@@ -73,6 +74,8 @@
 
 #define IOPL_SHIFT 12
 
+#define KVM_PIO_PAGE_OFFSET 1
+
 /*
  * Address types:
  *
@@ -106,6 +109,7 @@ struct kvm_pte_chain {
  *   bits 4:7 - page table level for this shadow (1-4)
  *   bits 8:9 - page table quadrant for 2-level guests
  *   bit   16 - "metaphysical" - gfn is not a real page (huge page/real mode)
+ *   bits 17:18 - "access" - the user and writable bits of a huge page pde
  */
 union kvm_mmu_page_role {
        unsigned word;
@@ -115,6 +119,7 @@ union kvm_mmu_page_role {
                unsigned quadrant : 2;
                unsigned pad_for_nice_hex_output : 6;
                unsigned metaphysical : 1;
+               unsigned hugepage_access : 2;
        };
 };
 
@@ -133,7 +138,6 @@ struct kvm_mmu_page {
        unsigned long slot_bitmap; /* One bit set per slot which has memory
                                    * in this shadow page.
                                    */
-       int global;              /* Set if all ptes in this page are global */
        int multimapped;         /* More than one parent_pte? */
        int root_count;          /* Currently serving as active root */
        union {
@@ -219,6 +223,18 @@ enum {
        VCPU_SREG_LDTR,
 };
 
+struct kvm_pio_request {
+       unsigned long count;
+       int cur_count;
+       struct page *guest_pages[2];
+       unsigned guest_page_offset;
+       int in;
+       int size;
+       int string;
+       int down;
+       int rep;
+};
+
 struct kvm_vcpu {
        struct kvm *kvm;
        union {
@@ -228,6 +244,8 @@ struct kvm_vcpu {
        struct mutex mutex;
        int   cpu;
        int   launched;
+       u64 host_tsc;
+       struct kvm_run *run;
        int interrupt_window_open;
        unsigned long irq_summary; /* bit vector: 1 per word in irq_pending */
 #define NR_IRQ_WORDS KVM_IRQ_BITMAP_SIZE(unsigned long)
@@ -273,6 +291,11 @@ struct kvm_vcpu {
        int mmio_size;
        unsigned char mmio_data[8];
        gpa_t mmio_phys_addr;
+       struct kvm_pio_request pio;
+       void *pio_data;
+
+       int sigset_active;
+       sigset_t sigset;
 
        struct {
                int active;
@@ -284,6 +307,9 @@ struct kvm_vcpu {
                        u32 ar;
                } tr, es, ds, fs, gs;
        } rmode;
+
+       int cpuid_nent;
+       struct kvm_cpuid_entry cpuid_entries[KVM_MAX_CPUID_ENTRIES];
 };
 
 struct kvm_memory_slot {
@@ -360,8 +386,6 @@ struct kvm_arch_ops {
        void (*get_cs_db_l_bits)(struct kvm_vcpu *vcpu, int *db, int *l);
        void (*decache_cr0_cr4_guest_bits)(struct kvm_vcpu *vcpu);
        void (*set_cr0)(struct kvm_vcpu *vcpu, unsigned long cr0);
-       void (*set_cr0_no_modeswitch)(struct kvm_vcpu *vcpu,
-                                     unsigned long cr0);
        void (*set_cr3)(struct kvm_vcpu *vcpu, unsigned long cr3);
        void (*set_cr4)(struct kvm_vcpu *vcpu, unsigned long cr4);
        void (*set_efer)(struct kvm_vcpu *vcpu, u64 efer);
@@ -406,22 +430,20 @@ int kvm_mmu_setup(struct kvm_vcpu *vcpu);
 
 int kvm_mmu_reset_context(struct kvm_vcpu *vcpu);
 void kvm_mmu_slot_remove_write_access(struct kvm_vcpu *vcpu, int slot);
+void kvm_mmu_zap_all(struct kvm_vcpu *vcpu);
 
 hpa_t gpa_to_hpa(struct kvm_vcpu *vcpu, 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; }
 hpa_t gva_to_hpa(struct kvm_vcpu *vcpu, gva_t gva);
+struct page *gva_to_page(struct kvm_vcpu *vcpu, gva_t gva);
 
 void kvm_emulator_want_group7_invlpg(void);
 
 extern hpa_t bad_page_address;
 
-static inline struct page *gfn_to_page(struct kvm_memory_slot *slot, gfn_t gfn)
-{
-       return slot->phys_mem[gfn - slot->base_gfn];
-}
-
+struct page *gfn_to_page(struct kvm *kvm, gfn_t gfn);
 struct kvm_memory_slot *gfn_to_memslot(struct kvm *kvm, gfn_t gfn);
 void mark_page_dirty(struct kvm *kvm, gfn_t gfn);
 
@@ -444,6 +466,10 @@ void realmode_set_cr(struct kvm_vcpu *vcpu, int cr, unsigned long value,
 
 struct x86_emulate_ctxt;
 
+int kvm_setup_pio(struct kvm_vcpu *vcpu, struct kvm_run *run, int in,
+                 int size, unsigned long count, int string, int down,
+                 gva_t address, int rep, unsigned port);
+void kvm_emulate_cpuid(struct kvm_vcpu *vcpu);
 int emulate_invlpg(struct kvm_vcpu *vcpu, gva_t address);
 int emulate_clts(struct kvm_vcpu *vcpu);
 int emulator_get_dr(struct x86_emulate_ctxt* ctxt, int dr,
@@ -493,12 +519,6 @@ static inline int kvm_mmu_page_fault(struct kvm_vcpu *vcpu, gva_t gva,
        return vcpu->mmu.page_fault(vcpu, gva, error_code);
 }
 
-static inline struct page *_gfn_to_page(struct kvm *kvm, gfn_t gfn)
-{
-       struct kvm_memory_slot *slot = gfn_to_memslot(kvm, gfn);
-       return (slot) ? slot->phys_mem[gfn - slot->base_gfn] : NULL;
-}
-
 static inline int is_long_mode(struct kvm_vcpu *vcpu)
 {
 #ifdef CONFIG_X86_64