1 files changed, 75 insertions, 15 deletions

diff --git a/arch/powerpc/include/asm/kvm_host.h b/arch/powerpc/include/asm/kvm_host.h
index bf8af5d5d5dc..52eb9c1f4fe0 100644
--- a/arch/powerpc/include/asm/kvm_host.h
+++ b/arch/powerpc/include/asm/kvm_host.h
@@ -32,17 +32,32 @@
 #include <linux/atomic.h>
 #include <asm/kvm_asm.h>
 #include <asm/processor.h>
+#include <asm/page.h>
 
 #define KVM_MAX_VCPUS           NR_CPUS
 #define KVM_MAX_VCORES          NR_CPUS
 #define KVM_MEMORY_SLOTS 32
 /* memory slots that does not exposed to userspace */
 #define KVM_PRIVATE_MEM_SLOTS 4
+#define KVM_MEM_SLOTS_NUM (KVM_MEMORY_SLOTS + KVM_PRIVATE_MEM_SLOTS)
 
 #ifdef CONFIG_KVM_MMIO
 #define KVM_COALESCED_MMIO_PAGE_OFFSET 1
 #endif
 
+#ifdef CONFIG_KVM_BOOK3S_64_HV
+#include <linux/mmu_notifier.h>
+
+#define KVM_ARCH_WANT_MMU_NOTIFIER
+
+struct kvm;
+extern int kvm_unmap_hva(struct kvm *kvm, unsigned long hva);
+extern int kvm_age_hva(struct kvm *kvm, unsigned long hva);
+extern int kvm_test_age_hva(struct kvm *kvm, unsigned long hva);
+extern void kvm_set_spte_hva(struct kvm *kvm, unsigned long hva, pte_t pte);
+
+#endif
+
 /* We don't currently support large pages. */
 #define KVM_HPAGE_GFN_SHIFT(x)  0
 #define KVM_NR_PAGE_SIZES       1
@@ -158,34 +173,72 @@ struct kvmppc_spapr_tce_table {
         struct page *pages[0];
 };
 
-struct kvmppc_rma_info {
+struct kvmppc_linear_info {
         void            *base_virt;
         unsigned long    base_pfn;
         unsigned long    npages;
         struct list_head list;
-        atomic_t         use_count;
+        atomic_t         use_count;
+        int              type;
+};
+
+/*
+ * The reverse mapping array has one entry for each HPTE,
+ * which stores the guest's view of the second word of the HPTE
+ * (including the guest physical address of the mapping),
+ * plus forward and backward pointers in a doubly-linked ring
+ * of HPTEs that map the same host page.  The pointers in this
+ * ring are 32-bit HPTE indexes, to save space.
+ */
+struct revmap_entry {
+        unsigned long guest_rpte;
+        unsigned int forw, back;
+};
+
+/*
+ * We use the top bit of each memslot->rmap entry as a lock bit,
+ * and bit 32 as a present flag.  The bottom 32 bits are the
+ * index in the guest HPT of a HPTE that points to the page.
+ */
+#define KVMPPC_RMAP_LOCK_BIT    63
+#define KVMPPC_RMAP_RC_SHIFT    32
+#define KVMPPC_RMAP_REFERENCED  (HPTE_R_R << KVMPPC_RMAP_RC_SHIFT)
+#define KVMPPC_RMAP_CHANGED     (HPTE_R_C << KVMPPC_RMAP_RC_SHIFT)
+#define KVMPPC_RMAP_PRESENT     0x100000000ul
+#define KVMPPC_RMAP_INDEX       0xfffffffful
+
+/* Low-order bits in kvm->arch.slot_phys[][] */
+#define KVMPPC_PAGE_ORDER_MASK  0x1f
+#define KVMPPC_PAGE_NO_CACHE    HPTE_R_I        /* 0x20 */
+#define KVMPPC_PAGE_WRITETHRU   HPTE_R_W        /* 0x40 */
+#define KVMPPC_GOT_PAGE         0x80
+
+struct kvm_arch_memory_slot {
 };
 
 struct kvm_arch {
 #ifdef CONFIG_KVM_BOOK3S_64_HV
         unsigned long hpt_virt;
-        unsigned long ram_npages;
-        unsigned long ram_psize;
-        unsigned long ram_porder;
-        struct kvmppc_pginfo *ram_pginfo;
+        struct revmap_entry *revmap;
         unsigned int lpid;
         unsigned int host_lpid;
         unsigned long host_lpcr;
         unsigned long sdr1;
         unsigned long host_sdr1;
         int tlbie_lock;
-        int n_rma_pages;
         unsigned long lpcr;
         unsigned long rmor;
-        struct kvmppc_rma_info *rma;
+        struct kvmppc_linear_info *rma;
+        unsigned long vrma_slb_v;
+        int rma_setup_done;
+        int using_mmu_notifiers;
         struct list_head spapr_tce_tables;
+        spinlock_t slot_phys_lock;
+        unsigned long *slot_phys[KVM_MEM_SLOTS_NUM];
+        int slot_npages[KVM_MEM_SLOTS_NUM];
         unsigned short last_vcpu[NR_CPUS];
         struct kvmppc_vcore *vcores[KVM_MAX_VCORES];
+        struct kvmppc_linear_info *hpt_li;
 #endif /* CONFIG_KVM_BOOK3S_64_HV */
 };
 
@@ -318,10 +371,6 @@ struct kvm_vcpu_arch {
         u32 vrsave; /* also USPRG0 */
         u32 mmucr;
         ulong shadow_msr;
-        ulong sprg4;
-        ulong sprg5;
-        ulong sprg6;
-        ulong sprg7;
         ulong csrr0;
         ulong csrr1;
         ulong dsrr0;
@@ -329,16 +378,14 @@ struct kvm_vcpu_arch {
         ulong mcsrr0;
         ulong mcsrr1;
         ulong mcsr;
-        ulong esr;
         u32 dec;
         u32 decar;
         u32 tbl;
         u32 tbu;
         u32 tcr;
-        u32 tsr;
+        ulong tsr; /* we need to perform set/clr_bits() which requires ulong */
         u32 ivor[64];
         ulong ivpr;
-        u32 pir;
         u32 pvr;
 
         u32 shadow_pid;
@@ -427,9 +474,14 @@ struct kvm_vcpu_arch {
 #ifdef CONFIG_KVM_BOOK3S_64_HV
         struct kvm_vcpu_arch_shared shregs;
 
+        unsigned long pgfault_addr;
+        long pgfault_index;
+        unsigned long pgfault_hpte[2];
+
         struct list_head run_list;
         struct task_struct *run_task;
         struct kvm_run *kvm_run;
+        pgd_t *pgdir;
 #endif
 };
 
@@ -438,4 +490,12 @@ struct kvm_vcpu_arch {
 #define KVMPPC_VCPU_BUSY_IN_HOST        1
 #define KVMPPC_VCPU_RUNNABLE            2
 
+/* Values for vcpu->arch.io_gpr */
+#define KVM_MMIO_REG_MASK       0x001f
+#define KVM_MMIO_REG_EXT_MASK   0xffe0
+#define KVM_MMIO_REG_GPR        0x0000
+#define KVM_MMIO_REG_FPR        0x0020
+#define KVM_MMIO_REG_QPR        0x0040
+#define KVM_MMIO_REG_FQPR       0x0060
+
 #endif /* __POWERPC_KVM_HOST_H__ */