Merge tag 'kvm-3.9-1' of git://git.kernel.org/pub/scm/virt/kvm/kvm

Pull KVM updates from Marcelo Tosatti:
 "KVM updates for the 3.9 merge window, including x86 real mode
  emulation fixes, stronger memory slot interface restrictions, mmu_lock
  spinlock hold time reduction, improved handling of large page faults
  on shadow, initial APICv HW acceleration support, s390 channel IO
  based virtio, amongst others"

* tag 'kvm-3.9-1' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (143 commits)
  Revert "KVM: MMU: lazily drop large spte"
  x86: pvclock kvm: align allocation size to page size
  KVM: nVMX: Remove redundant get_vmcs12 from nested_vmx_exit_handled_msr
  x86 emulator: fix parity calculation for AAD instruction
  KVM: PPC: BookE: Handle alignment interrupts
  booke: Added DBCR4 SPR number
  KVM: PPC: booke: Allow multiple exception types
  KVM: PPC: booke: use vcpu reference from thread_struct
  KVM: Remove user_alloc from struct kvm_memory_slot
  KVM: VMX: disable apicv by default
  KVM: s390: Fix handling of iscs.
  KVM: MMU: cleanup __direct_map
  KVM: MMU: remove pt_access in mmu_set_spte
  KVM: MMU: cleanup mapping-level
  KVM: MMU: lazily drop large spte
  KVM: VMX: cleanup vmx_set_cr0().
  KVM: VMX: add missing exit names to VMX_EXIT_REASONS array
  KVM: VMX: disable SMEP feature when guest is in non-paging mode
  KVM: Remove duplicate text in api.txt
  Revert "KVM: MMU: split kvm_mmu_free_page"
  ...

4 files changed, 41 insertions, 14 deletions

diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h
index dc87b65e9c3a..635a74d22409 100644
--- a/arch/x86/include/asm/kvm_host.h
+++ b/arch/x86/include/asm/kvm_host.h
@@ -33,10 +33,10 @@
 
 #define KVM_MAX_VCPUS 254
 #define KVM_SOFT_MAX_VCPUS 160
-#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)
+#define KVM_USER_MEM_SLOTS 125
+/* memory slots that are not exposed to userspace */
+#define KVM_PRIVATE_MEM_SLOTS 3
+#define KVM_MEM_SLOTS_NUM (KVM_USER_MEM_SLOTS + KVM_PRIVATE_MEM_SLOTS)
 
 #define KVM_MMIO_SIZE 16
 
@@ -219,11 +219,6 @@ struct kvm_mmu_page {
         u64 *spt;
         /* hold the gfn of each spte inside spt */
         gfn_t *gfns;
-        /*
-         * One bit set per slot which has memory
-         * in this shadow page.
-         */
-        DECLARE_BITMAP(slot_bitmap, KVM_MEM_SLOTS_NUM);
         bool unsync;
         int root_count;          /* Currently serving as active root */
         unsigned int unsync_children;
@@ -502,6 +497,13 @@ struct kvm_vcpu_arch {
                 u64 msr_val;
                 struct gfn_to_hva_cache data;
         } pv_eoi;
+
+        /*
+         * Indicate whether the access faults on its page table in guest
+         * which is set when fix page fault and used to detect unhandeable
+         * instruction.
+         */
+        bool write_fault_to_shadow_pgtable;
 };
 
 struct kvm_lpage_info {
@@ -697,6 +699,11 @@ struct kvm_x86_ops {
         void (*enable_nmi_window)(struct kvm_vcpu *vcpu);
         void (*enable_irq_window)(struct kvm_vcpu *vcpu);
         void (*update_cr8_intercept)(struct kvm_vcpu *vcpu, int tpr, int irr);
+        int (*vm_has_apicv)(struct kvm *kvm);
+        void (*hwapic_irr_update)(struct kvm_vcpu *vcpu, int max_irr);
+        void (*hwapic_isr_update)(struct kvm *kvm, int isr);
+        void (*load_eoi_exitmap)(struct kvm_vcpu *vcpu, u64 *eoi_exit_bitmap);
+        void (*set_virtual_x2apic_mode)(struct kvm_vcpu *vcpu, bool set);
         int (*set_tss_addr)(struct kvm *kvm, unsigned int addr);
         int (*get_tdp_level)(void);
         u64 (*get_mt_mask)(struct kvm_vcpu *vcpu, gfn_t gfn, bool is_mmio);
@@ -991,6 +998,7 @@ int kvm_age_hva(struct kvm *kvm, unsigned long hva);
 int kvm_test_age_hva(struct kvm *kvm, unsigned long hva);
 void kvm_set_spte_hva(struct kvm *kvm, unsigned long hva, pte_t pte);
 int cpuid_maxphyaddr(struct kvm_vcpu *vcpu);
+int kvm_cpu_has_injectable_intr(struct kvm_vcpu *v);
 int kvm_cpu_has_interrupt(struct kvm_vcpu *vcpu);
 int kvm_arch_interrupt_allowed(struct kvm_vcpu *vcpu);
 int kvm_cpu_get_interrupt(struct kvm_vcpu *v);
diff --git a/arch/x86/include/asm/kvm_para.h b/arch/x86/include/asm/kvm_para.h
index 65231e173baf..695399f2d5eb 100644
--- a/arch/x86/include/asm/kvm_para.h
+++ b/arch/x86/include/asm/kvm_para.h
@@ -27,7 +27,7 @@ static inline bool kvm_check_and_clear_guest_paused(void)
  *
  * Up to four arguments may be passed in rbx, rcx, rdx, and rsi respectively.
  * The hypercall number should be placed in rax and the return value will be
- * placed in rax.  No other registers will be clobbered unless explicited
+ * placed in rax.  No other registers will be clobbered unless explicitly
  * noted by the particular hypercall.
  */
 
diff --git a/arch/x86/include/asm/vmx.h b/arch/x86/include/asm/vmx.h
index 235b49fa554b..b6fbf860e398 100644
--- a/arch/x86/include/asm/vmx.h
+++ b/arch/x86/include/asm/vmx.h
@@ -57,9 +57,12 @@
 #define SECONDARY_EXEC_VIRTUALIZE_APIC_ACCESSES 0x00000001
 #define SECONDARY_EXEC_ENABLE_EPT               0x00000002
 #define SECONDARY_EXEC_RDTSCP                   0x00000008
+#define SECONDARY_EXEC_VIRTUALIZE_X2APIC_MODE   0x00000010
 #define SECONDARY_EXEC_ENABLE_VPID              0x00000020
 #define SECONDARY_EXEC_WBINVD_EXITING           0x00000040
 #define SECONDARY_EXEC_UNRESTRICTED_GUEST       0x00000080
+#define SECONDARY_EXEC_APIC_REGISTER_VIRT       0x00000100
+#define SECONDARY_EXEC_VIRTUAL_INTR_DELIVERY    0x00000200
 #define SECONDARY_EXEC_PAUSE_LOOP_EXITING       0x00000400
 #define SECONDARY_EXEC_ENABLE_INVPCID           0x00001000
 
@@ -97,6 +100,7 @@ enum vmcs_field {
         GUEST_GS_SELECTOR               = 0x0000080a,
         GUEST_LDTR_SELECTOR             = 0x0000080c,
         GUEST_TR_SELECTOR               = 0x0000080e,
+        GUEST_INTR_STATUS               = 0x00000810,
         HOST_ES_SELECTOR                = 0x00000c00,
         HOST_CS_SELECTOR                = 0x00000c02,
         HOST_SS_SELECTOR                = 0x00000c04,
@@ -124,6 +128,14 @@ enum vmcs_field {
         APIC_ACCESS_ADDR_HIGH           = 0x00002015,
         EPT_POINTER                     = 0x0000201a,
         EPT_POINTER_HIGH                = 0x0000201b,
+        EOI_EXIT_BITMAP0                = 0x0000201c,
+        EOI_EXIT_BITMAP0_HIGH           = 0x0000201d,
+        EOI_EXIT_BITMAP1                = 0x0000201e,
+        EOI_EXIT_BITMAP1_HIGH           = 0x0000201f,
+        EOI_EXIT_BITMAP2                = 0x00002020,
+        EOI_EXIT_BITMAP2_HIGH           = 0x00002021,
+        EOI_EXIT_BITMAP3                = 0x00002022,
+        EOI_EXIT_BITMAP3_HIGH           = 0x00002023,
         GUEST_PHYSICAL_ADDRESS          = 0x00002400,
         GUEST_PHYSICAL_ADDRESS_HIGH     = 0x00002401,
         VMCS_LINK_POINTER               = 0x00002800,
@@ -346,9 +358,9 @@ enum vmcs_field {
 
 #define AR_RESERVD_MASK 0xfffe0f00
 
-#define TSS_PRIVATE_MEMSLOT                     (KVM_MEMORY_SLOTS + 0)
-#define APIC_ACCESS_PAGE_PRIVATE_MEMSLOT        (KVM_MEMORY_SLOTS + 1)
-#define IDENTITY_PAGETABLE_PRIVATE_MEMSLOT      (KVM_MEMORY_SLOTS + 2)
+#define TSS_PRIVATE_MEMSLOT                     (KVM_USER_MEM_SLOTS + 0)
+#define APIC_ACCESS_PAGE_PRIVATE_MEMSLOT        (KVM_USER_MEM_SLOTS + 1)
+#define IDENTITY_PAGETABLE_PRIVATE_MEMSLOT      (KVM_USER_MEM_SLOTS + 2)
 
 #define VMX_NR_VPIDS                            (1 << 16)
 #define VMX_VPID_EXTENT_SINGLE_CONTEXT          1
diff --git a/arch/x86/include/uapi/asm/vmx.h b/arch/x86/include/uapi/asm/vmx.h
index 979d03bce135..2871fccfee68 100644
--- a/arch/x86/include/uapi/asm/vmx.h
+++ b/arch/x86/include/uapi/asm/vmx.h
@@ -62,10 +62,12 @@
 #define EXIT_REASON_MCE_DURING_VMENTRY  41
 #define EXIT_REASON_TPR_BELOW_THRESHOLD 43
 #define EXIT_REASON_APIC_ACCESS         44
+#define EXIT_REASON_EOI_INDUCED         45
 #define EXIT_REASON_EPT_VIOLATION       48
 #define EXIT_REASON_EPT_MISCONFIG       49
 #define EXIT_REASON_WBINVD              54
 #define EXIT_REASON_XSETBV              55
+#define EXIT_REASON_APIC_WRITE          56
 #define EXIT_REASON_INVPCID             58
 
 #define VMX_EXIT_REASONS \
@@ -103,7 +105,12 @@
         { EXIT_REASON_APIC_ACCESS,           "APIC_ACCESS" }, \
         { EXIT_REASON_EPT_VIOLATION,         "EPT_VIOLATION" }, \
         { EXIT_REASON_EPT_MISCONFIG,         "EPT_MISCONFIG" }, \
-        { EXIT_REASON_WBINVD,                "WBINVD" }
+        { EXIT_REASON_WBINVD,                "WBINVD" }, \
+        { EXIT_REASON_APIC_WRITE,            "APIC_WRITE" }, \
+        { EXIT_REASON_EOI_INDUCED,           "EOI_INDUCED" }, \
+        { EXIT_REASON_INVALID_STATE,         "INVALID_STATE" }, \
+        { EXIT_REASON_INVD,                  "INVD" }, \
+        { EXIT_REASON_INVPCID,               "INVPCID" }
 
 
 #endif /* _UAPIVMX_H */