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-rw-r--r--arch/x86/include/asm/kvm.h17
-rw-r--r--arch/x86/include/asm/kvm_emulate.h46
-rw-r--r--arch/x86/include/asm/kvm_host.h80
-rw-r--r--arch/x86/include/asm/kvm_para.h13
-rw-r--r--arch/x86/include/asm/msr-index.h5
-rw-r--r--arch/x86/include/asm/pvclock-abi.h4
-rw-r--r--arch/x86/include/asm/pvclock.h1
-rw-r--r--arch/x86/include/asm/svm.h9
-rw-r--r--arch/x86/include/asm/vmx.h12
-rw-r--r--arch/x86/kernel/kvmclock.c56
-rw-r--r--arch/x86/kernel/pvclock.c37
-rw-r--r--arch/x86/kernel/tboot.c1
-rw-r--r--arch/x86/kvm/emulate.c1247
-rw-r--r--arch/x86/kvm/i8259.c53
-rw-r--r--arch/x86/kvm/irq.h1
-rw-r--r--arch/x86/kvm/kvm_timer.h4
-rw-r--r--arch/x86/kvm/mmu.c225
-rw-r--r--arch/x86/kvm/mmutrace.h84
-rw-r--r--arch/x86/kvm/paging_tmpl.h46
-rw-r--r--arch/x86/kvm/svm.c944
-rw-r--r--arch/x86/kvm/timer.c3
-rw-r--r--arch/x86/kvm/trace.h165
-rw-r--r--arch/x86/kvm/vmx.c378
-rw-r--r--arch/x86/kvm/x86.c1599
-rw-r--r--arch/x86/kvm/x86.h7
25 files changed, 2987 insertions, 2050 deletions
diff --git a/arch/x86/include/asm/kvm.h b/arch/x86/include/asm/kvm.h
index f46b79f6c16..ff90055c7f0 100644
--- a/arch/x86/include/asm/kvm.h
+++ b/arch/x86/include/asm/kvm.h
@@ -21,6 +21,7 @@
#define __KVM_HAVE_PIT_STATE2
#define __KVM_HAVE_XEN_HVM
#define __KVM_HAVE_VCPU_EVENTS
+#define __KVM_HAVE_DEBUGREGS
/* Architectural interrupt line count. */
#define KVM_NR_INTERRUPTS 256
@@ -257,6 +258,11 @@ struct kvm_reinject_control {
/* When set in flags, include corresponding fields on KVM_SET_VCPU_EVENTS */
#define KVM_VCPUEVENT_VALID_NMI_PENDING 0x00000001
#define KVM_VCPUEVENT_VALID_SIPI_VECTOR 0x00000002
+#define KVM_VCPUEVENT_VALID_SHADOW 0x00000004
+
+/* Interrupt shadow states */
+#define KVM_X86_SHADOW_INT_MOV_SS 0x01
+#define KVM_X86_SHADOW_INT_STI 0x02
/* for KVM_GET/SET_VCPU_EVENTS */
struct kvm_vcpu_events {
@@ -271,7 +277,7 @@ struct kvm_vcpu_events {
__u8 injected;
__u8 nr;
__u8 soft;
- __u8 pad;
+ __u8 shadow;
} interrupt;
struct {
__u8 injected;
@@ -284,4 +290,13 @@ struct kvm_vcpu_events {
__u32 reserved[10];
};
+/* for KVM_GET/SET_DEBUGREGS */
+struct kvm_debugregs {
+ __u64 db[4];
+ __u64 dr6;
+ __u64 dr7;
+ __u64 flags;
+ __u64 reserved[9];
+};
+
#endif /* _ASM_X86_KVM_H */
diff --git a/arch/x86/include/asm/kvm_emulate.h b/arch/x86/include/asm/kvm_emulate.h
index 7a6f54fa13b..0b2729bf207 100644
--- a/arch/x86/include/asm/kvm_emulate.h
+++ b/arch/x86/include/asm/kvm_emulate.h
@@ -11,6 +11,8 @@
#ifndef _ASM_X86_KVM_X86_EMULATE_H
#define _ASM_X86_KVM_X86_EMULATE_H
+#include <asm/desc_defs.h>
+
struct x86_emulate_ctxt;
/*
@@ -63,6 +65,15 @@ struct x86_emulate_ops {
unsigned int bytes, struct kvm_vcpu *vcpu, u32 *error);
/*
+ * write_std: Write bytes of standard (non-emulated/special) memory.
+ * Used for descriptor writing.
+ * @addr: [IN ] Linear address to which to write.
+ * @val: [OUT] Value write to memory, zero-extended to 'u_long'.
+ * @bytes: [IN ] Number of bytes to write to memory.
+ */
+ int (*write_std)(unsigned long addr, void *val,
+ unsigned int bytes, struct kvm_vcpu *vcpu, u32 *error);
+ /*
* fetch: Read bytes of standard (non-emulated/special) memory.
* Used for instruction fetch.
* @addr: [IN ] Linear address from which to read.
@@ -109,6 +120,23 @@ struct x86_emulate_ops {
unsigned int bytes,
struct kvm_vcpu *vcpu);
+ int (*pio_in_emulated)(int size, unsigned short port, void *val,
+ unsigned int count, struct kvm_vcpu *vcpu);
+
+ int (*pio_out_emulated)(int size, unsigned short port, const void *val,
+ unsigned int count, struct kvm_vcpu *vcpu);
+
+ bool (*get_cached_descriptor)(struct desc_struct *desc,
+ int seg, struct kvm_vcpu *vcpu);
+ void (*set_cached_descriptor)(struct desc_struct *desc,
+ int seg, struct kvm_vcpu *vcpu);
+ u16 (*get_segment_selector)(int seg, struct kvm_vcpu *vcpu);
+ void (*set_segment_selector)(u16 sel, int seg, struct kvm_vcpu *vcpu);
+ void (*get_gdt)(struct desc_ptr *dt, struct kvm_vcpu *vcpu);
+ ulong (*get_cr)(int cr, struct kvm_vcpu *vcpu);
+ void (*set_cr)(int cr, ulong val, struct kvm_vcpu *vcpu);
+ int (*cpl)(struct kvm_vcpu *vcpu);
+ void (*set_rflags)(struct kvm_vcpu *vcpu, unsigned long rflags);
};
/* Type, address-of, and value of an instruction's operand. */
@@ -124,6 +152,12 @@ struct fetch_cache {
unsigned long end;
};
+struct read_cache {
+ u8 data[1024];
+ unsigned long pos;
+ unsigned long end;
+};
+
struct decode_cache {
u8 twobyte;
u8 b;
@@ -139,7 +173,7 @@ struct decode_cache {
u8 seg_override;
unsigned int d;
unsigned long regs[NR_VCPU_REGS];
- unsigned long eip, eip_orig;
+ unsigned long eip;
/* modrm */
u8 modrm;
u8 modrm_mod;
@@ -151,16 +185,15 @@ struct decode_cache {
void *modrm_ptr;
unsigned long modrm_val;
struct fetch_cache fetch;
+ struct read_cache io_read;
};
-#define X86_SHADOW_INT_MOV_SS 1
-#define X86_SHADOW_INT_STI 2
-
struct x86_emulate_ctxt {
/* Register state before/after emulation. */
struct kvm_vcpu *vcpu;
unsigned long eflags;
+ unsigned long eip; /* eip before instruction emulation */
/* Emulated execution mode, represented by an X86EMUL_MODE value. */
int mode;
u32 cs_base;
@@ -168,6 +201,7 @@ struct x86_emulate_ctxt {
/* interruptibility state, as a result of execution of STI or MOV SS */
int interruptibility;
+ bool restart; /* restart string instruction after writeback */
/* decode cache */
struct decode_cache decode;
};
@@ -194,5 +228,9 @@ int x86_decode_insn(struct x86_emulate_ctxt *ctxt,
struct x86_emulate_ops *ops);
int x86_emulate_insn(struct x86_emulate_ctxt *ctxt,
struct x86_emulate_ops *ops);
+int emulator_task_switch(struct x86_emulate_ctxt *ctxt,
+ struct x86_emulate_ops *ops,
+ u16 tss_selector, int reason,
+ bool has_error_code, u32 error_code);
#endif /* _ASM_X86_KVM_X86_EMULATE_H */
diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h
index 06d9e79ca37..76f5483cffe 100644
--- a/arch/x86/include/asm/kvm_host.h
+++ b/arch/x86/include/asm/kvm_host.h
@@ -171,15 +171,15 @@ struct kvm_pte_chain {
union kvm_mmu_page_role {
unsigned word;
struct {
- unsigned glevels:4;
unsigned level:4;
+ unsigned cr4_pae:1;
unsigned quadrant:2;
unsigned pad_for_nice_hex_output:6;
unsigned direct:1;
unsigned access:3;
unsigned invalid:1;
- unsigned cr4_pge:1;
unsigned nxe:1;
+ unsigned cr0_wp:1;
};
};
@@ -187,8 +187,6 @@ struct kvm_mmu_page {
struct list_head link;
struct hlist_node hash_link;
- struct list_head oos_link;
-
/*
* The following two entries are used to key the shadow page in the
* hash table.
@@ -204,9 +202,9 @@ struct kvm_mmu_page {
* in this shadow page.
*/
DECLARE_BITMAP(slot_bitmap, KVM_MEMORY_SLOTS + KVM_PRIVATE_MEM_SLOTS);
- int multimapped; /* More than one parent_pte? */
- int root_count; /* Currently serving as active root */
+ bool multimapped; /* More than one parent_pte? */
bool unsync;
+ int root_count; /* Currently serving as active root */
unsigned int unsync_children;
union {
u64 *parent_pte; /* !multimapped */
@@ -224,14 +222,9 @@ struct kvm_pv_mmu_op_buffer {
struct kvm_pio_request {
unsigned long count;
- int cur_count;
- gva_t guest_gva;
int in;
int port;
int size;
- int string;
- int down;
- int rep;
};
/*
@@ -320,6 +313,7 @@ struct kvm_vcpu_arch {
struct kvm_queued_exception {
bool pending;
bool has_error_code;
+ bool reinject;
u8 nr;
u32 error_code;
} exception;
@@ -362,8 +356,8 @@ struct kvm_vcpu_arch {
u64 *mce_banks;
/* used for guest single stepping over the given code position */
- u16 singlestep_cs;
unsigned long singlestep_rip;
+
/* fields used by HYPER-V emulation */
u64 hv_vapic;
};
@@ -389,6 +383,7 @@ struct kvm_arch {
unsigned int n_free_mmu_pages;
unsigned int n_requested_mmu_pages;
unsigned int n_alloc_mmu_pages;
+ atomic_t invlpg_counter;
struct hlist_head mmu_page_hash[KVM_NUM_MMU_PAGES];
/*
* Hash table of struct kvm_mmu_page.
@@ -461,11 +456,6 @@ struct kvm_vcpu_stat {
u32 nmi_injections;
};
-struct descriptor_table {
- u16 limit;
- unsigned long base;
-} __attribute__((packed));
-
struct kvm_x86_ops {
int (*cpu_has_kvm_support)(void); /* __init */
int (*disabled_by_bios)(void); /* __init */
@@ -503,12 +493,11 @@ struct kvm_x86_ops {
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);
- void (*get_idt)(struct kvm_vcpu *vcpu, struct descriptor_table *dt);
- void (*set_idt)(struct kvm_vcpu *vcpu, struct descriptor_table *dt);
- void (*get_gdt)(struct kvm_vcpu *vcpu, struct descriptor_table *dt);
- void (*set_gdt)(struct kvm_vcpu *vcpu, struct descriptor_table *dt);
- int (*get_dr)(struct kvm_vcpu *vcpu, int dr, unsigned long *dest);
- int (*set_dr)(struct kvm_vcpu *vcpu, int dr, unsigned long value);
+ void (*get_idt)(struct kvm_vcpu *vcpu, struct desc_ptr *dt);
+ 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);
+ 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);
void (*set_rflags)(struct kvm_vcpu *vcpu, unsigned long rflags);
@@ -527,7 +516,8 @@ struct kvm_x86_ops {
void (*set_irq)(struct kvm_vcpu *vcpu);
void (*set_nmi)(struct kvm_vcpu *vcpu);
void (*queue_exception)(struct kvm_vcpu *vcpu, unsigned nr,
- bool has_error_code, u32 error_code);
+ bool has_error_code, u32 error_code,
+ bool reinject);
int (*interrupt_allowed)(struct kvm_vcpu *vcpu);
int (*nmi_allowed)(struct kvm_vcpu *vcpu);
bool (*get_nmi_mask)(struct kvm_vcpu *vcpu);
@@ -541,6 +531,8 @@ struct kvm_x86_ops {
int (*get_lpage_level)(void);
bool (*rdtscp_supported)(void);
+ void (*set_supported_cpuid)(u32 func, struct kvm_cpuid_entry2 *entry);
+
const struct trace_print_flags *exit_reasons_str;
};
@@ -587,23 +579,14 @@ int emulate_instruction(struct kvm_vcpu *vcpu,
void kvm_report_emulation_failure(struct kvm_vcpu *cvpu, const char *context);
void realmode_lgdt(struct kvm_vcpu *vcpu, u16 size, unsigned long address);
void realmode_lidt(struct kvm_vcpu *vcpu, u16 size, unsigned long address);
-void realmode_lmsw(struct kvm_vcpu *vcpu, unsigned long msw,
- unsigned long *rflags);
-unsigned long realmode_get_cr(struct kvm_vcpu *vcpu, int cr);
-void realmode_set_cr(struct kvm_vcpu *vcpu, int cr, unsigned long value,
- unsigned long *rflags);
void kvm_enable_efer_bits(u64);
int kvm_get_msr(struct kvm_vcpu *vcpu, u32 msr_index, u64 *data);
int kvm_set_msr(struct kvm_vcpu *vcpu, u32 msr_index, u64 data);
struct x86_emulate_ctxt;
-int kvm_emulate_pio(struct kvm_vcpu *vcpu, int in,
- int size, unsigned port);
-int kvm_emulate_pio_string(struct kvm_vcpu *vcpu, int in,
- int size, unsigned long count, int down,
- gva_t address, int rep, unsigned port);
+int kvm_fast_pio_out(struct kvm_vcpu *vcpu, int size, unsigned short port);
void kvm_emulate_cpuid(struct kvm_vcpu *vcpu);
int kvm_emulate_halt(struct kvm_vcpu *vcpu);
int emulate_invlpg(struct kvm_vcpu *vcpu, gva_t address);
@@ -616,12 +599,15 @@ int emulator_set_dr(struct x86_emulate_ctxt *ctxt, int dr,
void kvm_get_segment(struct kvm_vcpu *vcpu, struct kvm_segment *var, int seg);
int kvm_load_segment_descriptor(struct kvm_vcpu *vcpu, u16 selector, int seg);
-int kvm_task_switch(struct kvm_vcpu *vcpu, u16 tss_selector, int reason);
+int kvm_task_switch(struct kvm_vcpu *vcpu, u16 tss_selector, int reason,
+ bool has_error_code, u32 error_code);
void kvm_set_cr0(struct kvm_vcpu *vcpu, unsigned long cr0);
void kvm_set_cr3(struct kvm_vcpu *vcpu, unsigned long cr3);
void kvm_set_cr4(struct kvm_vcpu *vcpu, unsigned long cr4);
void kvm_set_cr8(struct kvm_vcpu *vcpu, unsigned long cr8);
+int kvm_set_dr(struct kvm_vcpu *vcpu, int dr, unsigned long val);
+int kvm_get_dr(struct kvm_vcpu *vcpu, int dr, unsigned long *val);
unsigned long kvm_get_cr8(struct kvm_vcpu *vcpu);
void kvm_lmsw(struct kvm_vcpu *vcpu, unsigned long msw);
void kvm_get_cs_db_l_bits(struct kvm_vcpu *vcpu, int *db, int *l);
@@ -634,6 +620,8 @@ void kvm_set_rflags(struct kvm_vcpu *vcpu, unsigned long rflags);
void kvm_queue_exception(struct kvm_vcpu *vcpu, unsigned nr);
void kvm_queue_exception_e(struct kvm_vcpu *vcpu, unsigned nr, u32 error_code);
+void kvm_requeue_exception(struct kvm_vcpu *vcpu, unsigned nr);
+void kvm_requeue_exception_e(struct kvm_vcpu *vcpu, unsigned nr, u32 error_code);
void kvm_inject_page_fault(struct kvm_vcpu *vcpu, unsigned long cr2,
u32 error_code);
bool kvm_require_cpl(struct kvm_vcpu *vcpu, int required_cpl);
@@ -649,8 +637,6 @@ int emulator_write_emulated(unsigned long addr,
unsigned int bytes,
struct kvm_vcpu *vcpu);
-unsigned long segment_base(u16 selector);
-
void kvm_mmu_flush_tlb(struct kvm_vcpu *vcpu);
void kvm_mmu_pte_write(struct kvm_vcpu *vcpu, gpa_t gpa,
const u8 *new, int bytes,
@@ -675,7 +661,6 @@ void kvm_mmu_invlpg(struct kvm_vcpu *vcpu, gva_t gva);
void kvm_enable_tdp(void);
void kvm_disable_tdp(void);
-int load_pdptrs(struct kvm_vcpu *vcpu, unsigned long cr3);
int complete_pio(struct kvm_vcpu *vcpu);
bool kvm_check_iopl(struct kvm_vcpu *vcpu);
@@ -724,23 +709,6 @@ static inline void kvm_load_ldt(u16 sel)
asm("lldt %0" : : "rm"(sel));
}
-static inline void kvm_get_idt(struct descriptor_table *table)
-{
- asm("sidt %0" : "=m"(*table));
-}
-
-static inline void kvm_get_gdt(struct descriptor_table *table)
-{
- asm("sgdt %0" : "=m"(*table));
-}
-
-static inline unsigned long kvm_read_tr_base(void)
-{
- u16 tr;
- asm("str %0" : "=g"(tr));
- return segment_base(tr);
-}
-
#ifdef CONFIG_X86_64
static inline unsigned long read_msr(unsigned long msr)
{
@@ -826,4 +794,6 @@ int kvm_cpu_get_interrupt(struct kvm_vcpu *v);
void kvm_define_shared_msr(unsigned index, u32 msr);
void kvm_set_shared_msr(unsigned index, u64 val, u64 mask);
+bool kvm_is_linear_rip(struct kvm_vcpu *vcpu, unsigned long linear_rip);
+
#endif /* _ASM_X86_KVM_HOST_H */
diff --git a/arch/x86/include/asm/kvm_para.h b/arch/x86/include/asm/kvm_para.h
index ffae1420e7d..05eba5e9a8e 100644
--- a/arch/x86/include/asm/kvm_para.h
+++ b/arch/x86/include/asm/kvm_para.h
@@ -16,10 +16,23 @@
#define KVM_FEATURE_CLOCKSOURCE 0
#define KVM_FEATURE_NOP_IO_DELAY 1
#define KVM_FEATURE_MMU_OP 2
+/* This indicates that the new set of kvmclock msrs
+ * are available. The use of 0x11 and 0x12 is deprecated
+ */
+#define KVM_FEATURE_CLOCKSOURCE2 3
+
+/* The last 8 bits are used to indicate how to interpret the flags field
+ * in pvclock structure. If no bits are set, all flags are ignored.
+ */
+#define KVM_FEATURE_CLOCKSOURCE_STABLE_BIT 24
#define MSR_KVM_WALL_CLOCK 0x11
#define MSR_KVM_SYSTEM_TIME 0x12
+/* Custom MSRs falls in the range 0x4b564d00-0x4b564dff */
+#define MSR_KVM_WALL_CLOCK_NEW 0x4b564d00
+#define MSR_KVM_SYSTEM_TIME_NEW 0x4b564d01
+
#define KVM_MAX_MMU_OP_BATCH 32
/* Operations for KVM_HC_MMU_OP */
diff --git a/arch/x86/include/asm/msr-index.h b/arch/x86/include/asm/msr-index.h
index bc473acfa7f..f9324851eba 100644
--- a/arch/x86/include/asm/msr-index.h
+++ b/arch/x86/include/asm/msr-index.h
@@ -202,8 +202,9 @@
#define MSR_IA32_EBL_CR_POWERON 0x0000002a
#define MSR_IA32_FEATURE_CONTROL 0x0000003a
-#define FEATURE_CONTROL_LOCKED (1<<0)
-#define FEATURE_CONTROL_VMXON_ENABLED (1<<2)
+#define FEATURE_CONTROL_LOCKED (1<<0)
+#define FEATURE_CONTROL_VMXON_ENABLED_INSIDE_SMX (1<<1)
+#define FEATURE_CONTROL_VMXON_ENABLED_OUTSIDE_SMX (1<<2)
#define MSR_IA32_APICBASE 0x0000001b
#define MSR_IA32_APICBASE_BSP (1<<8)
diff --git a/arch/x86/include/asm/pvclock-abi.h b/arch/x86/include/asm/pvclock-abi.h
index 6d93508f262..35f2d1948ad 100644
--- a/arch/x86/include/asm/pvclock-abi.h
+++ b/arch/x86/include/asm/pvclock-abi.h
@@ -29,7 +29,8 @@ struct pvclock_vcpu_time_info {
u64 system_time;
u32 tsc_to_system_mul;
s8 tsc_shift;
- u8 pad[3];
+ u8 flags;
+ u8 pad[2];
} __attribute__((__packed__)); /* 32 bytes */
struct pvclock_wall_clock {
@@ -38,5 +39,6 @@ struct pvclock_wall_clock {
u32 nsec;
} __attribute__((__packed__));
+#define PVCLOCK_TSC_STABLE_BIT (1 << 0)
#endif /* __ASSEMBLY__ */
#endif /* _ASM_X86_PVCLOCK_ABI_H */
diff --git a/arch/x86/include/asm/pvclock.h b/arch/x86/include/asm/pvclock.h
index 53235fd5f8c..cd02f324aa6 100644
--- a/arch/x86/include/asm/pvclock.h
+++ b/arch/x86/include/asm/pvclock.h
@@ -6,6 +6,7 @@
/* some helper functions for xen and kvm pv clock sources */
cycle_t pvclock_clocksource_read(struct pvclock_vcpu_time_info *src);
+void pvclock_set_flags(u8 flags);
unsigned long pvclock_tsc_khz(struct pvclock_vcpu_time_info *src);
void pvclock_read_wallclock(struct pvclock_wall_clock *wall,
struct pvclock_vcpu_time_info *vcpu,
diff --git a/arch/x86/include/asm/svm.h b/arch/x86/include/asm/svm.h
index 38638cd2fa4..0e831059ac5 100644
--- a/arch/x86/include/asm/svm.h
+++ b/arch/x86/include/asm/svm.h
@@ -81,7 +81,9 @@ struct __attribute__ ((__packed__)) vmcb_control_area {
u32 event_inj_err;
u64 nested_cr3;
u64 lbr_ctl;
- u8 reserved_5[832];
+ u64 reserved_5;
+ u64 next_rip;
+ u8 reserved_6[816];
};
@@ -115,6 +117,10 @@ struct __attribute__ ((__packed__)) vmcb_control_area {
#define SVM_IOIO_SIZE_MASK (7 << SVM_IOIO_SIZE_SHIFT)
#define SVM_IOIO_ASIZE_MASK (7 << SVM_IOIO_ASIZE_SHIFT)
+#define SVM_VM_CR_VALID_MASK 0x001fULL
+#define SVM_VM_CR_SVM_LOCK_MASK 0x0008ULL
+#define SVM_VM_CR_SVM_DIS_MASK 0x0010ULL
+
struct __attribute__ ((__packed__)) vmcb_seg {
u16 selector;
u16 attrib;
@@ -238,6 +244,7 @@ struct __attribute__ ((__packed__)) vmcb {
#define SVM_EXITINFOSHIFT_TS_REASON_IRET 36
#define SVM_EXITINFOSHIFT_TS_REASON_JMP 38
+#define SVM_EXITINFOSHIFT_TS_HAS_ERROR_CODE 44
#define SVM_EXIT_READ_CR0 0x000
#define SVM_EXIT_READ_CR3 0x003
diff --git a/arch/x86/include/asm/vmx.h b/arch/x86/include/asm/vmx.h
index fb9a080740e..9e6779f7cf2 100644
--- a/arch/x86/include/asm/vmx.h
+++ b/arch/x86/include/asm/vmx.h
@@ -25,6 +25,8 @@
*
*/
+#include <linux/types.h>
+
/*
* Definitions of Primary Processor-Based VM-Execution Controls.
*/
@@ -120,6 +122,8 @@ enum vmcs_field {
GUEST_IA32_DEBUGCTL_HIGH = 0x00002803,
GUEST_IA32_PAT = 0x00002804,
GUEST_IA32_PAT_HIGH = 0x00002805,
+ GUEST_IA32_EFER = 0x00002806,
+ GUEST_IA32_EFER_HIGH = 0x00002807,
GUEST_PDPTR0 = 0x0000280a,
GUEST_PDPTR0_HIGH = 0x0000280b,
GUEST_PDPTR1 = 0x0000280c,
@@ -130,6 +134,8 @@ enum vmcs_field {
GUEST_PDPTR3_HIGH = 0x00002811,
HOST_IA32_PAT = 0x00002c00,
HOST_IA32_PAT_HIGH = 0x00002c01,
+ HOST_IA32_EFER = 0x00002c02,
+ HOST_IA32_EFER_HIGH = 0x00002c03,
PIN_BASED_VM_EXEC_CONTROL = 0x00004000,
CPU_BASED_VM_EXEC_CONTROL = 0x00004002,
EXCEPTION_BITMAP = 0x00004004,
@@ -394,6 +400,10 @@ enum vmcs_field {
#define ASM_VMX_INVEPT ".byte 0x66, 0x0f, 0x38, 0x80, 0x08"
#define ASM_VMX_INVVPID ".byte 0x66, 0x0f, 0x38, 0x81, 0x08"
-
+struct vmx_msr_entry {
+ u32 index;
+ u32 reserved;
+ u64 value;
+} __aligned(16);
#endif
diff --git a/arch/x86/kernel/kvmclock.c b/arch/x86/kernel/kvmclock.c
index feaeb0d3aa4..eb9b76c716c 100644
--- a/arch/x86/kernel/kvmclock.c
+++ b/arch/x86/kernel/kvmclock.c
@@ -29,6 +29,8 @@
#define KVM_SCALE 22
static int kvmclock = 1;
+static int msr_kvm_system_time = MSR_KVM_SYSTEM_TIME;
+static int msr_kvm_wall_clock = MSR_KVM_WALL_CLOCK;
static int parse_no_kvmclock(char *arg)
{
@@ -54,7 +56,8 @@ static unsigned long kvm_get_wallclock(void)
low = (int)__pa_symbol(&wall_clock);
high = ((u64)__pa_symbol(&wall_clock) >> 32);
- native_write_msr(MSR_KVM_WALL_CLOCK, low, high);
+
+ native_write_msr(msr_kvm_wall_clock, low, high);
vcpu_time = &get_cpu_var(hv_clock);
pvclock_read_wallclock(&wall_clock, vcpu_time, &ts);
@@ -130,7 +133,8 @@ static int kvm_register_clock(char *txt)
high = ((u64)__pa(&per_cpu(hv_clock, cpu)) >> 32);
printk(KERN_INFO "kvm-clock: cpu %d, msr %x:%x, %s\n",
cpu, high, low, txt);
- return native_write_msr_safe(MSR_KVM_SYSTEM_TIME, low, high);
+
+ return native_write_msr_safe(msr_kvm_system_time, low, high);
}
#ifdef CONFIG_X86_LOCAL_APIC
@@ -165,14 +169,14 @@ static void __init kvm_smp_prepare_boot_cpu(void)
#ifdef CONFIG_KEXEC
static void kvm_crash_shutdown(struct pt_regs *regs)
{
- native_write_msr_safe(MSR_KVM_SYSTEM_TIME, 0, 0);
+ native_write_msr(msr_kvm_system_time, 0, 0);
native_machine_crash_shutdown(regs);
}
#endif
static void kvm_shutdown(void)
{
- native_write_msr_safe(MSR_KVM_SYSTEM_TIME, 0, 0);
+ native_write_msr(msr_kvm_system_time, 0, 0);
native_machine_shutdown();
}
@@ -181,27 +185,37 @@ void __init kvmclock_init(void)
if (!kvm_para_available())
return;
- if (kvmclock && kvm_para_has_feature(KVM_FEATURE_CLOCKSOURCE)) {
- if (kvm_register_clock("boot clock"))
- return;
- pv_time_ops.sched_clock = kvm_clock_read;
- x86_platform.calibrate_tsc = kvm_get_tsc_khz;
- x86_platform.get_wallclock = kvm_get_wallclock;
- x86_platform.set_wallclock = kvm_set_wallclock;
+ if (kvmclock && kvm_para_has_feature(KVM_FEATURE_CLOCKSOURCE2)) {
+ msr_kvm_system_time = MSR_KVM_SYSTEM_TIME_NEW;
+ msr_kvm_wall_clock = MSR_KVM_WALL_CLOCK_NEW;
+ } else if (!(kvmclock && kvm_para_has_feature(KVM_FEATURE_CLOCKSOURCE)))
+ return;
+
+ printk(KERN_INFO "kvm-clock: Using msrs %x and %x",
+ msr_kvm_system_time, msr_kvm_wall_clock);
+
+ if (kvm_register_clock("boot clock"))
+ return;
+ pv_time_ops.sched_clock = kvm_clock_read;
+ x86_platform.calibrate_tsc = kvm_get_tsc_khz;
+ x86_platform.get_wallclock = kvm_get_wallclock;
+ x86_platform.set_wallclock = kvm_set_wallclock;
#ifdef CONFIG_X86_LOCAL_APIC
- x86_cpuinit.setup_percpu_clockev =
- kvm_setup_secondary_clock;
+ x86_cpuinit.setup_percpu_clockev =
+ kvm_setup_secondary_clock;
#endif
#ifdef CONFIG_SMP
- smp_ops.smp_prepare_boot_cpu = kvm_smp_prepare_boot_cpu;
+ smp_ops.smp_prepare_boot_cpu = kvm_smp_prepare_boot_cpu;
#endif
- machine_ops.shutdown = kvm_shutdown;
+ machine_ops.shutdown = kvm_shutdown;
#ifdef CONFIG_KEXEC
- machine_ops.crash_shutdown = kvm_crash_shutdown;
+ machine_ops.crash_shutdown = kvm_crash_shutdown;
#endif
- kvm_get_preset_lpj();
- clocksource_register(&kvm_clock);
- pv_info.paravirt_enabled = 1;
- pv_info.name = "KVM";
- }
+ kvm_get_preset_lpj();
+ clocksource_register(&kvm_clock);
+ pv_info.paravirt_enabled = 1;
+ pv_info.name = "KVM";
+
+ if (kvm_para_has_feature(KVM_FEATURE_CLOCKSOURCE_STABLE_BIT))
+ pvclock_set_flags(PVCLOCK_TSC_STABLE_BIT);
}
diff --git a/arch/x86/kernel/pvclock.c b/arch/x86/kernel/pvclock.c
index 03801f2f761..239427ca02a 100644
--- a/arch/x86/kernel/pvclock.c
+++ b/arch/x86/kernel/pvclock.c
@@ -31,8 +31,16 @@ struct pvclock_shadow_time {
u32 tsc_to_nsec_mul;
int tsc_shift;
u32 version;
+ u8 flags;
};
+static u8 valid_flags __read_mostly = 0;
+
+void pvclock_set_flags(u8 flags)
+{
+ valid_flags = flags;
+}
+
/*
* Scale a 64-bit delta by scaling and multiplying by a 32-bit fraction,
* yielding a 64-bit result.
@@ -91,6 +99,7 @@ static unsigned pvclock_get_time_values(struct pvclock_shadow_time *dst,
dst->system_timestamp = src->system_time;
dst->tsc_to_nsec_mul = src->tsc_to_system_mul;
dst->tsc_shift = src->tsc_shift;
+ dst->flags = src->flags;
rmb(); /* test version after fetching data */
} while ((src->version & 1) || (dst->version != src->version));
@@ -109,11 +118,14 @@ unsigned long pvclock_tsc_khz(struct pvclock_vcpu_time_info *src)
return pv_tsc_khz;
}
+static atomic64_t last_value = ATOMIC64_INIT(0);
+
cycle_t pvclock_clocksource_read(struct pvclock_vcpu_time_info *src)
{
struct pvclock_shadow_time shadow;
unsigned version;
cycle_t ret, offset;
+ u64 last;
do {
version = pvclock_get_time_values(&shadow, src);
@@ -123,6 +135,31 @@ cycle_t pvclock_clocksource_read(struct pvclock_vcpu_time_info *src)
barrier();
} while (version != src->version);
+ if ((valid_flags & PVCLOCK_TSC_STABLE_BIT) &&
+ (shadow.flags & PVCLOCK_TSC_STABLE_BIT))
+ return ret;
+
+ /*
+ * Assumption here is that last_value, a global accumulator, always goes
+ * forward. If we are less than that, we should not be much smaller.
+ * We assume there is an error marging we're inside, and then the correction
+ * does not sacrifice accuracy.
+ *
+ * For reads: global may have changed between test and return,
+ * but this means someone else updated poked the clock at a later time.
+ * We just need to make sure we are not seeing a backwards event.
+ *
+ * For updates: last_value = ret is not enough, since two vcpus could be
+ * updating at the same time, and one of them could be slightly behind,
+ * making the assumption that last_value always go forward fail to hold.
+ */
+ last = atomic64_read(&last_value);
+ do {
+ if (ret < last)
+ return last;
+ last = atomic64_cmpxchg(&last_value, last, ret);
+ } while (unlikely(last != ret));
+
return ret;
}
diff --git a/arch/x86/kernel/tboot.c b/arch/x86/kernel/tboot.c
index cc2c60474fd..c2f1b26141e 100644
--- a/arch/x86/kernel/tboot.c
+++ b/arch/x86/kernel/tboot.c
@@ -46,6 +46,7 @@
/* Global pointer to shared data; NULL means no measured launch. */
struct tboot *tboot __read_mostly;
+EXPORT_SYMBOL(tboot);
/* timeout for APs (in secs) to enter wait-for-SIPI state during shutdown */
#define AP_WAIT_TIMEOUT 1
diff --git a/arch/x86/kvm/emulate.c b/arch/x86/kvm/emulate.c
index 4dade6ac082..5ac0bb465ed 100644
--- a/arch/x86/kvm/emulate.c
+++ b/arch/x86/kvm/emulate.c
@@ -33,6 +33,7 @@
#include <asm/kvm_emulate.h>
#include "x86.h"
+#include "tss.h"
/*
* Opcode effective-address decode tables.
@@ -50,6 +51,8 @@
#define DstReg (2<<1) /* Register operand. */
#define DstMem (3<<1) /* Memory operand. */
#define DstAcc (4<<1) /* Destination Accumulator */
+#define DstDI (5<<1) /* Destination is in ES:(E)DI */
+#define DstMem64 (6<<1) /* 64bit memory operand */
#define DstMask (7<<1)
/* Source operand type. */
#define SrcNone (0<<4) /* No source operand. */
@@ -63,6 +66,7 @@
#define SrcOne (7<<4) /* Implied '1' */
#define SrcImmUByte (8<<4) /* 8-bit unsigned immediate operand. */
#define SrcImmU (9<<4) /* Immediate operand, unsigned */
+#define SrcSI (0xa<<4) /* Source is in the DS:RSI */
#define SrcMask (0xf<<4)
/* Generic ModRM decode. */
#define ModRM (1<<8)
@@ -85,6 +89,9 @@
#define Src2ImmByte (2<<29)
#define Src2One (3<<29)
#define Src2Imm16 (4<<29)
+#define Src2Mem16 (5<<29) /* Used for Ep encoding. First argument has to be
+ in memory and second argument is located
+ immediately after the first one in memory. */
#define Src2Mask (7<<29)
enum {
@@ -147,8 +154,8 @@ static u32 opcode_table[256] = {
0, 0, 0, 0,
/* 0x68 - 0x6F */
SrcImm | Mov | Stack, 0, SrcImmByte | Mov | Stack, 0,
- SrcNone | ByteOp | ImplicitOps, SrcNone | ImplicitOps, /* insb, insw/insd */
- SrcNone | ByteOp | ImplicitOps, SrcNone | ImplicitOps, /* outsb, outsw/outsd */
+ DstDI | ByteOp | Mov | String, DstDI | Mov | String, /* insb, insw/insd */
+ SrcSI | ByteOp | ImplicitOps | String, SrcSI | ImplicitOps | String, /* outsb, outsw/outsd */
/* 0x70 - 0x77 */
SrcImmByte, SrcImmByte, SrcImmByte, SrcImmByte,
SrcImmByte, SrcImmByte, SrcImmByte, SrcImmByte,
@@ -173,12 +180,12 @@ static u32 opcode_table[256] = {
/* 0xA0 - 0xA7 */
ByteOp | DstReg | SrcMem | Mov | MemAbs, DstReg | SrcMem | Mov | MemAbs,
ByteOp | DstMem | SrcReg | Mov | MemAbs, DstMem | SrcReg | Mov | MemAbs,
- ByteOp | ImplicitOps | Mov | String, ImplicitOps | Mov | String,
- ByteOp | ImplicitOps | String, ImplicitOps | String,
+ ByteOp | SrcSI | DstDI | Mov | String, SrcSI | DstDI | Mov | String,
+ ByteOp | SrcSI | DstDI | String, SrcSI | DstDI | String,
/* 0xA8 - 0xAF */
- 0, 0, ByteOp | ImplicitOps | Mov | String, ImplicitOps | Mov | String,
- ByteOp | ImplicitOps | Mov | String, ImplicitOps | Mov | String,
- ByteOp | ImplicitOps | String, ImplicitOps | String,
+ 0, 0, ByteOp | DstDI | Mov | String, DstDI | Mov | String,
+ ByteOp | SrcSI | DstAcc | Mov | String, SrcSI | DstAcc | Mov | String,
+ ByteOp | DstDI | String, DstDI | String,
/* 0xB0 - 0xB7 */
ByteOp | DstReg | SrcImm | Mov, ByteOp | DstReg | SrcImm | Mov,
ByteOp | DstReg | SrcImm | Mov, ByteOp | DstReg | SrcImm | Mov,
@@ -204,13 +211,13 @@ static u32 opcode_table[256] = {
0, 0, 0, 0, 0, 0, 0, 0,
/* 0xE0 - 0xE7 */
0, 0, 0, 0,
- ByteOp | SrcImmUByte, SrcImmUByte,
- ByteOp | SrcImmUByte, SrcImmUByte,
+ ByteOp | SrcImmUByte | DstAcc, SrcImmUByte | DstAcc,
+ ByteOp | SrcImmUByte | DstAcc, SrcImmUByte | DstAcc,
/* 0xE8 - 0xEF */
SrcImm | Stack, SrcImm | ImplicitOps,
SrcImmU | Src2Imm16 | No64, SrcImmByte | ImplicitOps,
- SrcNone | ByteOp | ImplicitOps, SrcNone | ImplicitOps,
- SrcNone | ByteOp | ImplicitOps, SrcNone | ImplicitOps,
+ SrcNone | ByteOp | DstAcc, SrcNone | DstAcc,
+ SrcNone | ByteOp | DstAcc, SrcNone | DstAcc,
/* 0xF0 - 0xF7 */
0, 0, 0, 0,
ImplicitOps | Priv, ImplicitOps, Group | Group3_Byte, Group | Group3,
@@ -343,7 +350,8 @@ static u32 group_table[] = {
[Group5*8] =
DstMem | SrcNone | ModRM, DstMem | SrcNone | ModRM,
SrcMem | ModRM | Stack, 0,
- SrcMem | ModRM | Stack, 0, SrcMem | ModRM | Stack, 0,
+ SrcMem | ModRM | Stack, SrcMem | ModRM | Src2Mem16 | ImplicitOps,
+ SrcMem | ModRM | Stack, 0,
[Group7*8] =
0, 0, ModRM | SrcMem | Priv, ModRM | SrcMem | Priv,
SrcNone | ModRM | DstMem | Mov, 0,
@@ -353,14 +361,14 @@ static u32 group_table[] = {
DstMem | SrcImmByte | ModRM, DstMem | SrcImmByte | ModRM | Lock,
DstMem | SrcImmByte | ModRM | Lock, DstMem | SrcImmByte | ModRM | Lock,
[Group9*8] =
- 0, ImplicitOps | ModRM | Lock, 0, 0, 0, 0, 0, 0,
+ 0, DstMem64 | ModRM | Lock, 0, 0, 0, 0, 0, 0,
};