additions for syscall hijacking

[palacios-OLD.git] / palacios / src / palacios / vmm_mem_hook.c

diff --git a/palacios/src/palacios/vmm_mem_hook.c b/palacios/src/palacios/vmm_mem_hook.c
index 6993c9e..aee8c33 100644 (file)
--- a/palacios/src/palacios/vmm_mem_hook.c
+++ b/palacios/src/palacios/vmm_mem_hook.c
@@ -145,6 +145,7 @@ static int handle_mem_hook(struct guest_info * core, addr_t guest_va, addr_t gue
     }
 
 
+
     // Test source operand, if it's memory we need to do some translations, and handle a possible hook
     if (instr.src_operand.type == MEM_OPERAND) {
        struct v3_mem_region * src_reg = NULL;
@@ -162,8 +163,8 @@ static int handle_mem_hook(struct guest_info * core, addr_t guest_va, addr_t gue
            }
        }
 
-       if ((guest_pa >= reg->guest_start) && 
-           (guest_pa <= reg->guest_end)) {
+       if ((src_mem_op_gpa >= reg->guest_start) && 
+           (src_mem_op_gpa < reg->guest_end)) {   
            // Src address corresponds to faulted region
            src_reg = reg;
        } else {
@@ -208,8 +209,8 @@ static int handle_mem_hook(struct guest_info * core, addr_t guest_va, addr_t gue
            }
        }
 
-       if ((guest_pa >= reg->guest_start) && 
-           (guest_pa <= reg->guest_end)) {
+       if ((dst_mem_op_gpa >= reg->guest_start) && 
+           (dst_mem_op_gpa < reg->guest_end)) {
            // Dst address corresponds to faulted region
            dst_reg = reg;
        } else {