Merge tag 'kvm-3.15-1' of git://git.kernel.org/pub/scm/virt/kvm/kvm

Pull kvm updates from Paolo Bonzini:
 "PPC and ARM do not have much going on this time.  Most of the cool
  stuff, instead, is in s390 and (after a few releases) x86.

  ARM has some caching fixes and PPC has transactional memory support in
  guests.  MIPS has some fixes, with more probably coming in 3.16 as
  QEMU will soon get support for MIPS KVM.

  For x86 there are optimizations for debug registers, which trigger on
  some Windows games, and other important fixes for Windows guests.  We
  now expose to the guest Broadwell instruction set extensions and also
  Intel MPX.  There's also a fix/workaround for OS X guests, nested
  virtualization features (preemption timer), and a couple kvmclock
  refinements.

  For s390, the main news is asynchronous page faults, together with
  improvements to IRQs (floating irqs and adapter irqs) that speed up
  virtio devices"

* tag 'kvm-3.15-1' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (96 commits)
  KVM: PPC: Book3S HV: Save/restore host PMU registers that are new in POWER8
  KVM: PPC: Book3S HV: Fix decrementer timeouts with non-zero TB offset
  KVM: PPC: Book3S HV: Don't use kvm_memslots() in real mode
  KVM: PPC: Book3S HV: Return ENODEV error rather than EIO
  KVM: PPC: Book3S: Trim top 4 bits of physical address in RTAS code
  KVM: PPC: Book3S HV: Add get/set_one_reg for new TM state
  KVM: PPC: Book3S HV: Add transactional memory support
  KVM: Specify byte order for KVM_EXIT_MMIO
  KVM: vmx: fix MPX detection
  KVM: PPC: Book3S HV: Fix KVM hang with CONFIG_KVM_XICS=n
  KVM: PPC: Book3S: Introduce hypervisor call H_GET_TCE
  KVM: PPC: Book3S HV: Fix incorrect userspace exit on ioeventfd write
  KVM: s390: clear local interrupts at cpu initial reset
  KVM: s390: Fix possible memory leak in SIGP functions
  KVM: s390: fix calculation of idle_mask array size
  KVM: s390: randomize sca address
  KVM: ioapic: reinject pending interrupts on KVM_SET_IRQCHIP
  KVM: Bump KVM_MAX_IRQ_ROUTES for s390
  KVM: s390: irq routing for adapter interrupts.
  KVM: s390: adapter interrupt sources
  ...

4 files changed, 21 insertions, 4 deletions

diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h
index fdf83afbb7d9..fcaf9c961265 100644
--- a/arch/x86/include/asm/kvm_host.h
+++ b/arch/x86/include/asm/kvm_host.h
@@ -337,6 +337,11 @@ struct kvm_pmu {
         u64 reprogram_pmi;
 };
 
+enum {
+        KVM_DEBUGREG_BP_ENABLED = 1,
+        KVM_DEBUGREG_WONT_EXIT = 2,
+};
+
 struct kvm_vcpu_arch {
         /*
          * rip and regs accesses must go through
@@ -444,7 +449,6 @@ struct kvm_vcpu_arch {
         } st;
 
         u64 last_guest_tsc;
-        u64 last_kernel_ns;
         u64 last_host_tsc;
         u64 tsc_offset_adjustment;
         u64 this_tsc_nsec;
@@ -464,7 +468,7 @@ struct kvm_vcpu_arch {
         struct mtrr_state_type mtrr_state;
         u32 pat;
 
-        int switch_db_regs;
+        unsigned switch_db_regs;
         unsigned long db[KVM_NR_DB_REGS];
         unsigned long dr6;
         unsigned long dr7;
@@ -599,6 +603,8 @@ struct kvm_arch {
         bool use_master_clock;
         u64 master_kernel_ns;
         cycle_t master_cycle_now;
+        struct delayed_work kvmclock_update_work;
+        struct delayed_work kvmclock_sync_work;
 
         struct kvm_xen_hvm_config xen_hvm_config;
 
@@ -702,6 +708,7 @@ struct kvm_x86_ops {
         void (*set_gdt)(struct kvm_vcpu *vcpu, struct desc_ptr *dt);
         u64 (*get_dr6)(struct kvm_vcpu *vcpu);
         void (*set_dr6)(struct kvm_vcpu *vcpu, unsigned long value);
+        void (*sync_dirty_debug_regs)(struct kvm_vcpu *vcpu);
         void (*set_dr7)(struct kvm_vcpu *vcpu, unsigned long value);
         void (*cache_reg)(struct kvm_vcpu *vcpu, enum kvm_reg reg);
         unsigned long (*get_rflags)(struct kvm_vcpu *vcpu);
@@ -728,8 +735,8 @@ struct kvm_x86_ops {
         int (*nmi_allowed)(struct kvm_vcpu *vcpu);
         bool (*get_nmi_mask)(struct kvm_vcpu *vcpu);
         void (*set_nmi_mask)(struct kvm_vcpu *vcpu, bool masked);
-        int (*enable_nmi_window)(struct kvm_vcpu *vcpu);
-        int (*enable_irq_window)(struct kvm_vcpu *vcpu);
+        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);
@@ -765,6 +772,9 @@ struct kvm_x86_ops {
                                struct x86_instruction_info *info,
                                enum x86_intercept_stage stage);
         void (*handle_external_intr)(struct kvm_vcpu *vcpu);
+        bool (*mpx_supported)(void);
+
+        int (*check_nested_events)(struct kvm_vcpu *vcpu, bool external_intr);
 };
 
 struct kvm_arch_async_pf {
diff --git a/arch/x86/include/asm/vmx.h b/arch/x86/include/asm/vmx.h
index 2067264fb7f5..7004d21e6219 100644
--- a/arch/x86/include/asm/vmx.h
+++ b/arch/x86/include/asm/vmx.h
@@ -85,6 +85,7 @@
 #define VM_EXIT_SAVE_IA32_EFER                  0x00100000
 #define VM_EXIT_LOAD_IA32_EFER                  0x00200000
 #define VM_EXIT_SAVE_VMX_PREEMPTION_TIMER       0x00400000
+#define VM_EXIT_CLEAR_BNDCFGS                   0x00800000
 
 #define VM_EXIT_ALWAYSON_WITHOUT_TRUE_MSR       0x00036dff
 
@@ -95,6 +96,7 @@
 #define VM_ENTRY_LOAD_IA32_PERF_GLOBAL_CTRL     0x00002000
 #define VM_ENTRY_LOAD_IA32_PAT                  0x00004000
 #define VM_ENTRY_LOAD_IA32_EFER                 0x00008000
+#define VM_ENTRY_LOAD_BNDCFGS                   0x00010000
 
 #define VM_ENTRY_ALWAYSON_WITHOUT_TRUE_MSR      0x000011ff
 
@@ -174,6 +176,8 @@ enum vmcs_field {
         GUEST_PDPTR2_HIGH               = 0x0000280f,
         GUEST_PDPTR3                    = 0x00002810,
         GUEST_PDPTR3_HIGH               = 0x00002811,
+        GUEST_BNDCFGS                   = 0x00002812,
+        GUEST_BNDCFGS_HIGH              = 0x00002813,
         HOST_IA32_PAT                   = 0x00002c00,
         HOST_IA32_PAT_HIGH              = 0x00002c01,
         HOST_IA32_EFER                  = 0x00002c02,
diff --git a/arch/x86/include/asm/xsave.h b/arch/x86/include/asm/xsave.h
index 6c1d7411eb00..d949ef28c48b 100644
--- a/arch/x86/include/asm/xsave.h
+++ b/arch/x86/include/asm/xsave.h
@@ -16,6 +16,8 @@
 #define XSTATE_Hi16_ZMM         0x80
 
 #define XSTATE_FPSSE    (XSTATE_FP | XSTATE_SSE)
+/* Bit 63 of XCR0 is reserved for future expansion */
+#define XSTATE_EXTEND_MASK      (~(XSTATE_FPSSE | (1ULL << 63)))
 
 #define FXSAVE_SIZE     512
 
diff --git a/arch/x86/include/uapi/asm/msr-index.h b/arch/x86/include/uapi/asm/msr-index.h
index 4924f4be2b99..c827ace3121b 100644
--- a/arch/x86/include/uapi/asm/msr-index.h
+++ b/arch/x86/include/uapi/asm/msr-index.h
@@ -295,6 +295,7 @@
 #define MSR_SMI_COUNT                   0x00000034
 #define MSR_IA32_FEATURE_CONTROL        0x0000003a
 #define MSR_IA32_TSC_ADJUST             0x0000003b
+#define MSR_IA32_BNDCFGS                0x00000d90
 
 #define FEATURE_CONTROL_LOCKED                          (1<<0)
 #define FEATURE_CONTROL_VMXON_ENABLED_INSIDE_SMX        (1<<1)