--- zzzz-none-000/linux-3.10.107/arch/x86/include/asm/kvm_emulate.h	2017-06-27 09:49:32.000000000 +0000
+++ scorpion-7490-727/linux-3.10.107/arch/x86/include/asm/kvm_emulate.h	2021-02-04 17:41:59.000000000 +0000
@@ -37,6 +37,7 @@
 	u8  modrm_reg;          /* index of register used               */
 	u8  modrm_rm;		/* rm part of modrm			*/
 	u64 src_val;            /* value of source operand              */
+	u64 dst_val;            /* value of destination operand         */
 	u8  src_bytes;          /* size of source operand               */
 	u8  dst_bytes;          /* size of destination operand          */
 	u8  ad_bytes;           /* size of src/dst address              */
@@ -111,6 +112,16 @@
 			struct x86_exception *fault);
 
 	/*
+	 * read_phys: Read bytes of standard (non-emulated/special) memory.
+	 *            Used for descriptor reading.
+	 *  @addr:  [IN ] Physical address from which to read.
+	 *  @val:   [OUT] Value read from memory.
+	 *  @bytes: [IN ] Number of bytes to read from memory.
+	 */
+	int (*read_phys)(struct x86_emulate_ctxt *ctxt, unsigned long addr,
+			void *val, unsigned int bytes);
+
+	/*
 	 * write_std: Write bytes of standard (non-emulated/special) memory.
 	 *            Used for descriptor writing.
 	 *  @addr:  [IN ] Linear address to which to write.
@@ -189,12 +200,14 @@
 	void (*set_idt)(struct x86_emulate_ctxt *ctxt, struct desc_ptr *dt);
 	ulong (*get_cr)(struct x86_emulate_ctxt *ctxt, int cr);
 	int (*set_cr)(struct x86_emulate_ctxt *ctxt, int cr, ulong val);
-	void (*set_rflags)(struct x86_emulate_ctxt *ctxt, ulong val);
 	int (*cpl)(struct x86_emulate_ctxt *ctxt);
 	int (*get_dr)(struct x86_emulate_ctxt *ctxt, int dr, ulong *dest);
 	int (*set_dr)(struct x86_emulate_ctxt *ctxt, int dr, ulong value);
+	u64 (*get_smbase)(struct x86_emulate_ctxt *ctxt);
+	void (*set_smbase)(struct x86_emulate_ctxt *ctxt, u64 smbase);
 	int (*set_msr)(struct x86_emulate_ctxt *ctxt, u32 msr_index, u64 data);
 	int (*get_msr)(struct x86_emulate_ctxt *ctxt, u32 msr_index, u64 *pdata);
+	int (*check_pmc)(struct x86_emulate_ctxt *ctxt, u32 pmc);
 	int (*read_pmc)(struct x86_emulate_ctxt *ctxt, u32 pmc, u64 *pdata);
 	void (*halt)(struct x86_emulate_ctxt *ctxt);
 	void (*wbinvd)(struct x86_emulate_ctxt *ctxt);
@@ -207,6 +220,7 @@
 
 	void (*get_cpuid)(struct x86_emulate_ctxt *ctxt,
 			  u32 *eax, u32 *ebx, u32 *ecx, u32 *edx);
+	void (*set_nmi_mask)(struct x86_emulate_ctxt *ctxt, bool masked);
 };
 
 typedef u32 __attribute__((vector_size(16))) sse128_t;
@@ -232,7 +246,7 @@
 	union {
 		unsigned long val;
 		u64 val64;
-		char valptr[sizeof(unsigned long) + 2];
+		char valptr[sizeof(sse128_t)];
 		sse128_t vec_val;
 		u64 mm_val;
 		void *data;
@@ -241,8 +255,8 @@
 
 struct fetch_cache {
 	u8 data[15];
-	unsigned long start;
-	unsigned long end;
+	u8 *ptr;
+	u8 *end;
 };
 
 struct read_cache {
@@ -260,6 +274,11 @@
 	X86EMUL_MODE_PROT64,	/* 64-bit (long) mode.    */
 };
 
+/* These match some of the HF_* flags defined in kvm_host.h  */
+#define X86EMUL_GUEST_MASK           (1 << 5) /* VCPU is in guest-mode */
+#define X86EMUL_SMM_MASK             (1 << 6)
+#define X86EMUL_SMM_INSIDE_NMI_MASK  (1 << 7)
+
 struct x86_emulate_ctxt {
 	const struct x86_emulate_ops *ops;
 
@@ -271,42 +290,52 @@
 
 	/* interruptibility state, as a result of execution of STI or MOV SS */
 	int interruptibility;
+	int emul_flags;
 
-	bool guest_mode; /* guest running a nested guest */
 	bool perm_ok; /* do not check permissions if true */
-	bool only_vendor_specific_insn;
+	bool ud;	/* inject an #UD if host doesn't support insn */
 
 	bool have_exception;
 	struct x86_exception exception;
 
-	/* decode cache */
-	u8 twobyte;
+	/*
+	 * decode cache
+	 */
+
+	/* current opcode length in bytes */
+	u8 opcode_len;
 	u8 b;
 	u8 intercept;
-	u8 lock_prefix;
-	u8 rep_prefix;
 	u8 op_bytes;
 	u8 ad_bytes;
-	u8 rex_prefix;
 	struct operand src;
 	struct operand src2;
 	struct operand dst;
-	bool has_seg_override;
-	u8 seg_override;
-	u64 d;
 	int (*execute)(struct x86_emulate_ctxt *ctxt);
 	int (*check_perm)(struct x86_emulate_ctxt *ctxt);
+	/*
+	 * The following six fields are cleared together,
+	 * the rest are initialized unconditionally in x86_decode_insn
+	 * or elsewhere
+	 */
+	bool rip_relative;
+	u8 rex_prefix;
+	u8 lock_prefix;
+	u8 rep_prefix;
+	/* bitmaps of registers in _regs[] that can be read */
+	u32 regs_valid;
+	/* bitmaps of registers in _regs[] that have been written */
+	u32 regs_dirty;
 	/* modrm */
 	u8 modrm;
 	u8 modrm_mod;
 	u8 modrm_reg;
 	u8 modrm_rm;
 	u8 modrm_seg;
-	bool rip_relative;
+	u8 seg_override;
+	u64 d;
 	unsigned long _eip;
 	struct operand memop;
-	u32 regs_valid;  /* bitmaps of registers in _regs[] that can be read */
-	u32 regs_dirty;  /* bitmaps of registers in _regs[] that have been written */
 	/* Fields above regs are cleared together. */
 	unsigned long _regs[NR_VCPU_REGS];
 	struct operand *memopp;
@@ -404,6 +433,7 @@
 #define EMULATION_OK 0
 #define EMULATION_RESTART 1
 #define EMULATION_INTERCEPTED 2
+void init_decode_cache(struct x86_emulate_ctxt *ctxt);
 int x86_emulate_insn(struct x86_emulate_ctxt *ctxt);
 int emulator_task_switch(struct x86_emulate_ctxt *ctxt,
 			 u16 tss_selector, int idt_index, int reason,