Merge tag 'efi-urgent' into x86/urgent

 * Avoid WARN_ON() when mapping BGRT on Baytrail (EFI 32-bit).

Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>

17 files changed, 72 insertions, 103 deletions

diff --git a/arch/x86/include/asm/dmi.h b/arch/x86/include/asm/dmi.h
index fd8f9e2ca35f..535192f6bfad 100644
--- a/arch/x86/include/asm/dmi.h
+++ b/arch/x86/include/asm/dmi.h
@@ -13,7 +13,9 @@ static __always_inline __init void *dmi_alloc(unsigned len)
 }
 
 /* Use early IO mappings for DMI because it's initialized early */
-#define dmi_ioremap early_ioremap
-#define dmi_iounmap early_iounmap
+#define dmi_early_remap         early_ioremap
+#define dmi_early_unmap         early_iounmap
+#define dmi_remap               ioremap
+#define dmi_unmap               iounmap
 
 #endif /* _ASM_X86_DMI_H */
diff --git a/arch/x86/include/asm/fixmap.h b/arch/x86/include/asm/fixmap.h
index e846225265ed..7252cd339175 100644
--- a/arch/x86/include/asm/fixmap.h
+++ b/arch/x86/include/asm/fixmap.h
@@ -175,64 +175,7 @@ static inline void __set_fixmap(enum fixed_addresses idx,
 }
 #endif
 
-#define set_fixmap(idx, phys)                           \
-        __set_fixmap(idx, phys, PAGE_KERNEL)
-
-/*
- * Some hardware wants to get fixmapped without caching.
- */
-#define set_fixmap_nocache(idx, phys)                   \
-        __set_fixmap(idx, phys, PAGE_KERNEL_NOCACHE)
-
-#define clear_fixmap(idx)                       \
-        __set_fixmap(idx, 0, __pgprot(0))
-
-#define __fix_to_virt(x)        (FIXADDR_TOP - ((x) << PAGE_SHIFT))
-#define __virt_to_fix(x)        ((FIXADDR_TOP - ((x)&PAGE_MASK)) >> PAGE_SHIFT)
-
-extern void __this_fixmap_does_not_exist(void);
-
-/*
- * 'index to address' translation. If anyone tries to use the idx
- * directly without translation, we catch the bug with a NULL-deference
- * kernel oops. Illegal ranges of incoming indices are caught too.
- */
-static __always_inline unsigned long fix_to_virt(const unsigned int idx)
-{
-        /*
-         * this branch gets completely eliminated after inlining,
-         * except when someone tries to use fixaddr indices in an
-         * illegal way. (such as mixing up address types or using
-         * out-of-range indices).
-         *
-         * If it doesn't get removed, the linker will complain
-         * loudly with a reasonably clear error message..
-         */
-        if (idx >= __end_of_fixed_addresses)
-                __this_fixmap_does_not_exist();
-
-        return __fix_to_virt(idx);
-}
-
-static inline unsigned long virt_to_fix(const unsigned long vaddr)
-{
-        BUG_ON(vaddr >= FIXADDR_TOP || vaddr < FIXADDR_START);
-        return __virt_to_fix(vaddr);
-}
-
-/* Return an pointer with offset calculated */
-static __always_inline unsigned long
-__set_fixmap_offset(enum fixed_addresses idx, phys_addr_t phys, pgprot_t flags)
-{
-        __set_fixmap(idx, phys, flags);
-        return fix_to_virt(idx) + (phys & (PAGE_SIZE - 1));
-}
-
-#define set_fixmap_offset(idx, phys)                    \
-        __set_fixmap_offset(idx, phys, PAGE_KERNEL)
-
-#define set_fixmap_offset_nocache(idx, phys)                    \
-        __set_fixmap_offset(idx, phys, PAGE_KERNEL_NOCACHE)
+#include <asm-generic/fixmap.h>
 
 #endif /* !__ASSEMBLY__ */
 #endif /* _ASM_X86_FIXMAP_H */
diff --git a/arch/x86/include/asm/hash.h b/arch/x86/include/asm/hash.h
new file mode 100644
index 000000000000..e8c58f88b1d4
--- /dev/null
+++ b/arch/x86/include/asm/hash.h
@@ -0,0 +1,7 @@
+#ifndef _ASM_X86_HASH_H
+#define _ASM_X86_HASH_H
+
+struct fast_hash_ops;
+extern void setup_arch_fast_hash(struct fast_hash_ops *ops);
+
+#endif /* _ASM_X86_HASH_H */
diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h
index ae5d7830855c..fdf83afbb7d9 100644
--- a/arch/x86/include/asm/kvm_host.h
+++ b/arch/x86/include/asm/kvm_host.h
@@ -605,6 +605,7 @@ struct kvm_arch {
         /* fields used by HYPER-V emulation */
         u64 hv_guest_os_id;
         u64 hv_hypercall;
+        u64 hv_tsc_page;
 
         #ifdef CONFIG_KVM_MMU_AUDIT
         int audit_point;
@@ -699,6 +700,8 @@ struct kvm_x86_ops {
         void (*set_idt)(struct kvm_vcpu *vcpu, struct desc_ptr *dt);
         void (*get_gdt)(struct kvm_vcpu *vcpu, struct desc_ptr *dt);
         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 (*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);
diff --git a/arch/x86/include/asm/kvm_para.h b/arch/x86/include/asm/kvm_para.h
index 1df115909758..c7678e43465b 100644
--- a/arch/x86/include/asm/kvm_para.h
+++ b/arch/x86/include/asm/kvm_para.h
@@ -85,28 +85,9 @@ static inline long kvm_hypercall4(unsigned int nr, unsigned long p1,
         return ret;
 }
 
-static inline uint32_t kvm_cpuid_base(void)
-{
-        if (boot_cpu_data.cpuid_level < 0)
-                return 0;       /* So we don't blow up on old processors */
-
-        if (cpu_has_hypervisor)
-                return hypervisor_cpuid_base("KVMKVMKVM\0\0\0", 0);
-
-        return 0;
-}
-
-static inline bool kvm_para_available(void)
-{
-        return kvm_cpuid_base() != 0;
-}
-
-static inline unsigned int kvm_arch_para_features(void)
-{
-        return cpuid_eax(KVM_CPUID_FEATURES);
-}
-
 #ifdef CONFIG_KVM_GUEST
+bool kvm_para_available(void);
+unsigned int kvm_arch_para_features(void);
 void __init kvm_guest_init(void);
 void kvm_async_pf_task_wait(u32 token);
 void kvm_async_pf_task_wake(u32 token);
@@ -126,6 +107,16 @@ static inline void kvm_spinlock_init(void)
 #define kvm_async_pf_task_wait(T) do {} while(0)
 #define kvm_async_pf_task_wake(T) do {} while(0)
 
+static inline bool kvm_para_available(void)
+{
+        return 0;
+}
+
+static inline unsigned int kvm_arch_para_features(void)
+{
+        return 0;
+}
+
 static inline u32 kvm_read_and_reset_pf_reason(void)
 {
         return 0;
diff --git a/arch/x86/include/asm/paravirt.h b/arch/x86/include/asm/paravirt.h
index 401f350ef71b..cd6e1610e29e 100644
--- a/arch/x86/include/asm/paravirt.h
+++ b/arch/x86/include/asm/paravirt.h
@@ -781,9 +781,9 @@ static __always_inline void __ticket_unlock_kick(struct arch_spinlock *lock,
  */
 #define PV_CALLEE_SAVE_REGS_THUNK(func)                                 \
         extern typeof(func) __raw_callee_save_##func;                   \
-        static void *__##func##__ __used = func;                        \
                                                                         \
         asm(".pushsection .text;"                                       \
+            ".globl __raw_callee_save_" #func " ; "                     \
             "__raw_callee_save_" #func ": "                             \
             PV_SAVE_ALL_CALLER_REGS                                     \
             "call " #func ";"                                           \
diff --git a/arch/x86/include/asm/paravirt_types.h b/arch/x86/include/asm/paravirt_types.h
index aab8f671b523..7549b8b369e4 100644
--- a/arch/x86/include/asm/paravirt_types.h
+++ b/arch/x86/include/asm/paravirt_types.h
@@ -388,10 +388,11 @@ extern struct pv_lock_ops pv_lock_ops;
         _paravirt_alt(insn_string, "%c[paravirt_typenum]", "%c[paravirt_clobber]")
 
 /* Simple instruction patching code. */
-#define DEF_NATIVE(ops, name, code)                                     \
-        extern const char start_##ops##_##name[] __visible,             \
-                          end_##ops##_##name[] __visible;               \
-        asm("start_" #ops "_" #name ": " code "; end_" #ops "_" #name ":")
+#define NATIVE_LABEL(a,x,b) "\n\t.globl " a #x "_" #b "\n" a #x "_" #b ":\n\t"
+
+#define DEF_NATIVE(ops, name, code)                                     \
+        __visible extern const char start_##ops##_##name[], end_##ops##_##name[];       \
+        asm(NATIVE_LABEL("start_", ops, name) code NATIVE_LABEL("end_", ops, name))
 
 unsigned paravirt_patch_nop(void);
 unsigned paravirt_patch_ident_32(void *insnbuf, unsigned len);
diff --git a/arch/x86/include/asm/pci.h b/arch/x86/include/asm/pci.h
index 947b5c417e83..1ac6114c9ea5 100644
--- a/arch/x86/include/asm/pci.h
+++ b/arch/x86/include/asm/pci.h
@@ -104,7 +104,7 @@ extern void pci_iommu_alloc(void);
 struct msi_desc;
 int native_setup_msi_irqs(struct pci_dev *dev, int nvec, int type);
 void native_teardown_msi_irq(unsigned int irq);
-void native_restore_msi_irqs(struct pci_dev *dev, int irq);
+void native_restore_msi_irqs(struct pci_dev *dev);
 int setup_msi_irq(struct pci_dev *dev, struct msi_desc *msidesc,
                   unsigned int irq_base, unsigned int irq_offset);
 #else
@@ -125,7 +125,6 @@ int setup_msi_irq(struct pci_dev *dev, struct msi_desc *msidesc,
 
 /* generic pci stuff */
 #include <asm-generic/pci.h>
-#define PCIBIOS_MAX_MEM_32 0xffffffff
 
 #ifdef CONFIG_NUMA
 /* Returns the node based on pci bus */
diff --git a/arch/x86/include/asm/pgtable_types.h b/arch/x86/include/asm/pgtable_types.h
index a83aa44bb1fb..1aa9ccd43223 100644
--- a/arch/x86/include/asm/pgtable_types.h
+++ b/arch/x86/include/asm/pgtable_types.h
@@ -121,7 +121,8 @@
 
 /* Set of bits not changed in pte_modify */
 #define _PAGE_CHG_MASK  (PTE_PFN_MASK | _PAGE_PCD | _PAGE_PWT |         \
-                         _PAGE_SPECIAL | _PAGE_ACCESSED | _PAGE_DIRTY)
+                         _PAGE_SPECIAL | _PAGE_ACCESSED | _PAGE_DIRTY | \
+                         _PAGE_SOFT_DIRTY)
 #define _HPAGE_CHG_MASK (_PAGE_CHG_MASK | _PAGE_PSE)
 
 #define _PAGE_CACHE_MASK        (_PAGE_PCD | _PAGE_PWT)
diff --git a/arch/x86/include/asm/thread_info.h b/arch/x86/include/asm/thread_info.h
index 3ba3de457d05..e1940c06ed02 100644
--- a/arch/x86/include/asm/thread_info.h
+++ b/arch/x86/include/asm/thread_info.h
@@ -163,9 +163,11 @@ struct thread_info {
  */
 #ifndef __ASSEMBLY__
 
-
-/* how to get the current stack pointer from C */
-register unsigned long current_stack_pointer asm("esp") __used;
+#define current_stack_pointer ({                \
+        unsigned long sp;                       \
+        asm("mov %%esp,%0" : "=g" (sp));        \
+        sp;                                     \
+})
 
 /* how to get the thread information struct from C */
 static inline struct thread_info *current_thread_info(void)
diff --git a/arch/x86/include/asm/uv/uv.h b/arch/x86/include/asm/uv/uv.h
index 6b964a0b86d1..062921ef34e9 100644
--- a/arch/x86/include/asm/uv/uv.h
+++ b/arch/x86/include/asm/uv/uv.h
@@ -12,7 +12,6 @@ extern enum uv_system_type get_uv_system_type(void);
 extern int is_uv_system(void);
 extern void uv_cpu_init(void);
 extern void uv_nmi_init(void);
-extern void uv_register_nmi_notifier(void);
 extern void uv_system_init(void);
 extern const struct cpumask *uv_flush_tlb_others(const struct cpumask *cpumask,
                                                  struct mm_struct *mm,
@@ -26,7 +25,6 @@ static inline enum uv_system_type get_uv_system_type(void) { return UV_NONE; }
 static inline int is_uv_system(void)    { return 0; }
 static inline void uv_cpu_init(void)    { }
 static inline void uv_system_init(void) { }
-static inline void uv_register_nmi_notifier(void) { }
 static inline const struct cpumask *
 uv_flush_tlb_others(const struct cpumask *cpumask, struct mm_struct *mm,
                     unsigned long start, unsigned long end, unsigned int cpu)
diff --git a/arch/x86/include/asm/vmx.h b/arch/x86/include/asm/vmx.h
index 966502d4682e..2067264fb7f5 100644
--- a/arch/x86/include/asm/vmx.h
+++ b/arch/x86/include/asm/vmx.h
@@ -100,6 +100,7 @@
 
 #define VMX_MISC_PREEMPTION_TIMER_RATE_MASK     0x0000001f
 #define VMX_MISC_SAVE_EFER_LMA                  0x00000020
+#define VMX_MISC_ACTIVITY_HLT                   0x00000040
 
 /* VMCS Encodings */
 enum vmcs_field {
diff --git a/arch/x86/include/asm/x86_init.h b/arch/x86/include/asm/x86_init.h
index 0f1be11e43d2..e45e4da96bf1 100644
--- a/arch/x86/include/asm/x86_init.h
+++ b/arch/x86/include/asm/x86_init.h
@@ -181,7 +181,7 @@ struct x86_msi_ops {
                                u8 hpet_id);
         void (*teardown_msi_irq)(unsigned int irq);
         void (*teardown_msi_irqs)(struct pci_dev *dev);
-        void (*restore_msi_irqs)(struct pci_dev *dev, int irq);
+        void (*restore_msi_irqs)(struct pci_dev *dev);
         int  (*setup_hpet_msi)(unsigned int irq, unsigned int id);
         u32 (*msi_mask_irq)(struct msi_desc *desc, u32 mask, u32 flag);
         u32 (*msix_mask_irq)(struct msi_desc *desc, u32 flag);
diff --git a/arch/x86/include/asm/xen/page.h b/arch/x86/include/asm/xen/page.h
index b913915e8e63..787e1bb5aafc 100644
--- a/arch/x86/include/asm/xen/page.h
+++ b/arch/x86/include/asm/xen/page.h
@@ -52,7 +52,8 @@ extern unsigned long set_phys_range_identity(unsigned long pfn_s,
 extern int m2p_add_override(unsigned long mfn, struct page *page,
                             struct gnttab_map_grant_ref *kmap_op);
 extern int m2p_remove_override(struct page *page,
-                                struct gnttab_map_grant_ref *kmap_op);
+                               struct gnttab_map_grant_ref *kmap_op,
+                               unsigned long mfn);
 extern struct page *m2p_find_override(unsigned long mfn);
 extern unsigned long m2p_find_override_pfn(unsigned long mfn, unsigned long pfn);
 
@@ -121,7 +122,7 @@ static inline unsigned long mfn_to_pfn(unsigned long mfn)
                 pfn = m2p_find_override_pfn(mfn, ~0);
         }
 
-        /* 
+        /*
          * pfn is ~0 if there are no entries in the m2p for mfn or if the
          * entry doesn't map back to the mfn and m2p_override doesn't have a
          * valid entry for it.
@@ -167,7 +168,12 @@ static inline xpaddr_t machine_to_phys(xmaddr_t machine)
  */
 static inline unsigned long mfn_to_local_pfn(unsigned long mfn)
 {
-        unsigned long pfn = mfn_to_pfn(mfn);
+        unsigned long pfn;
+
+        if (xen_feature(XENFEAT_auto_translated_physmap))
+                return mfn;
+
+        pfn = mfn_to_pfn(mfn);
         if (get_phys_to_machine(pfn) != mfn)
                 return -1; /* force !pfn_valid() */
         return pfn;
@@ -222,5 +228,6 @@ void make_lowmem_page_readonly(void *vaddr);
 void make_lowmem_page_readwrite(void *vaddr);
 
 #define xen_remap(cookie, size) ioremap((cookie), (size));
+#define xen_unmap(cookie) iounmap((cookie))
 
 #endif /* _ASM_X86_XEN_PAGE_H */
diff --git a/arch/x86/include/uapi/asm/hyperv.h b/arch/x86/include/uapi/asm/hyperv.h
index b8f1c0176cbc..462efe746d77 100644
--- a/arch/x86/include/uapi/asm/hyperv.h
+++ b/arch/x86/include/uapi/asm/hyperv.h
@@ -28,6 +28,9 @@
 /* Partition Reference Counter (HV_X64_MSR_TIME_REF_COUNT) available*/
 #define HV_X64_MSR_TIME_REF_COUNT_AVAILABLE     (1 << 1)
 
+/* A partition's reference time stamp counter (TSC) page */
+#define HV_X64_MSR_REFERENCE_TSC                0x40000021
+
 /*
  * There is a single feature flag that signifies the presence of the MSR
  * that can be used to retrieve both the local APIC Timer frequency as
@@ -198,6 +201,9 @@
 #define HV_X64_MSR_APIC_ASSIST_PAGE_ADDRESS_MASK        \
                 (~((1ull << HV_X64_MSR_APIC_ASSIST_PAGE_ADDRESS_SHIFT) - 1))
 
+#define HV_X64_MSR_TSC_REFERENCE_ENABLE         0x00000001
+#define HV_X64_MSR_TSC_REFERENCE_ADDRESS_SHIFT  12
+
 #define HV_PROCESSOR_POWER_STATE_C0             0
 #define HV_PROCESSOR_POWER_STATE_C1             1
 #define HV_PROCESSOR_POWER_STATE_C2             2
@@ -210,4 +216,11 @@
 #define HV_STATUS_INVALID_ALIGNMENT             4
 #define HV_STATUS_INSUFFICIENT_BUFFERS          19
 
+typedef struct _HV_REFERENCE_TSC_PAGE {
+        __u32 tsc_sequence;
+        __u32 res1;
+        __u64 tsc_scale;
+        __s64 tsc_offset;
+} HV_REFERENCE_TSC_PAGE, *PHV_REFERENCE_TSC_PAGE;
+
 #endif
diff --git a/arch/x86/include/uapi/asm/msr-index.h b/arch/x86/include/uapi/asm/msr-index.h
index 59cea185ad1d..c19fc60ff062 100644
--- a/arch/x86/include/uapi/asm/msr-index.h
+++ b/arch/x86/include/uapi/asm/msr-index.h
@@ -528,6 +528,7 @@
 #define MSR_IA32_VMX_TRUE_PROCBASED_CTLS 0x0000048e
 #define MSR_IA32_VMX_TRUE_EXIT_CTLS      0x0000048f
 #define MSR_IA32_VMX_TRUE_ENTRY_CTLS     0x00000490
+#define MSR_IA32_VMX_VMFUNC             0x00000491
 
 /* VMX_BASIC bits and bitmasks */
 #define VMX_BASIC_VMCS_SIZE_SHIFT       32
diff --git a/arch/x86/include/uapi/asm/sembuf.h b/arch/x86/include/uapi/asm/sembuf.h
index ee50c801f7b7..cc2d6a3aeae7 100644
--- a/arch/x86/include/uapi/asm/sembuf.h
+++ b/arch/x86/include/uapi/asm/sembuf.h
@@ -13,12 +13,12 @@
 struct semid64_ds {
         struct ipc64_perm sem_perm;     /* permissions .. see ipc.h */
         __kernel_time_t sem_otime;      /* last semop time */
-        unsigned long   __unused1;
+        __kernel_ulong_t __unused1;
         __kernel_time_t sem_ctime;      /* last change time */
-        unsigned long   __unused2;
-        unsigned long   sem_nsems;      /* no. of semaphores in array */
-        unsigned long   __unused3;
-        unsigned long   __unused4;
+        __kernel_ulong_t __unused2;
+        __kernel_ulong_t sem_nsems;     /* no. of semaphores in array */
+        __kernel_ulong_t __unused3;
+        __kernel_ulong_t __unused4;
 };
 
 #endif /* _ASM_X86_SEMBUF_H */