+static inline int assign_eip(struct x86_emulate_ctxt *ctxt, ulong dst,
+ enum x86emul_mode mode)
+{
+ ulong linear;
+ int rc;
+ unsigned max_size;
+ struct segmented_address addr = { .seg = VCPU_SREG_CS,
+ .ea = dst };
+
+ if (ctxt->op_bytes != sizeof(unsigned long))
+ addr.ea = dst & ((1UL << (ctxt->op_bytes << 3)) - 1);
+ rc = __linearize(ctxt, addr, &max_size, 1, false, true, mode, &linear);
+ if (rc == X86EMUL_CONTINUE)
+ ctxt->_eip = addr.ea;
+ return rc;
+}
+
+static inline int assign_eip_near(struct x86_emulate_ctxt *ctxt, ulong dst)
+{
+ return assign_eip(ctxt, dst, ctxt->mode);
+}
+
+static int assign_eip_far(struct x86_emulate_ctxt *ctxt, ulong dst,
+ const struct desc_struct *cs_desc)
+{
+ enum x86emul_mode mode = ctxt->mode;
+
+#ifdef CONFIG_X86_64
+ if (ctxt->mode >= X86EMUL_MODE_PROT32 && cs_desc->l) {
+ u64 efer = 0;
+
+ ctxt->ops->get_msr(ctxt, MSR_EFER, &efer);
+ if (efer & EFER_LMA)
+ mode = X86EMUL_MODE_PROT64;
+ }
+#endif
+ if (mode == X86EMUL_MODE_PROT16 || mode == X86EMUL_MODE_PROT32)
+ mode = cs_desc->d ? X86EMUL_MODE_PROT32 : X86EMUL_MODE_PROT16;
+ return assign_eip(ctxt, dst, mode);
+}
+
+static inline int jmp_rel(struct x86_emulate_ctxt *ctxt, int rel)
+{
+ return assign_eip_near(ctxt, ctxt->_eip + rel);
+}