Check for alignment check violation when processing in/out string instructions.

1 files changed, 8 insertions, 2 deletions

diff --git a/sys/amd64/include/vmm_instruction_emul.h b/sys/amd64/include/vmm_instruction_emul.h
index d2cfdef..797cb39 100644
--- a/sys/amd64/include/vmm_instruction_emul.h
+++ b/sys/amd64/include/vmm_instruction_emul.h
@@ -116,6 +116,14 @@ int vmm_emulate_instruction(void *vm, int cpuid, uint64_t gpa, struct vie *vie,
 int vie_update_register(void *vm, int vcpuid, enum vm_reg_name reg,
     uint64_t val, int size);
 
+/*
+ * Returns 1 if an alignment check exception should be injected and 0 otherwise.
+ */
+int vie_alignment_check(int cpl, int operand_size, uint64_t cr0,
+    uint64_t rflags, uint64_t gla);
+
+uint64_t vie_size2mask(int size);
+
 #ifdef _KERNEL
 /*
  * APIs to fetch and decode the instruction from nested page fault handler.
@@ -139,8 +147,6 @@ int vmm_gla2gpa(struct vm *vm, int vcpuid, uint64_t gla, uint64_t cr3,
 
 void vie_init(struct vie *vie);
 
-uint64_t vie_size2mask(int size);
-
 uint64_t vie_segbase(enum vm_reg_name segment, enum vie_cpu_mode cpu_mode,
     const struct seg_desc *desc);