fixed gpa->hpa error checking

diff --git a/palacios/src/palacios/vm_guest_mem.c b/palacios/src/palacios/vm_guest_mem.c
index b17dd76..8455dd6 100644 (file)
--- a/palacios/src/palacios/vm_guest_mem.c
+++ b/palacios/src/palacios/vm_guest_mem.c
@@ -68,8 +68,6 @@ int host_pa_to_host_va(addr_t host_pa, addr_t * host_va) {
 int guest_pa_to_host_pa(struct guest_info * guest_info, addr_t guest_pa, addr_t * host_pa) {
     struct v3_shadow_region * shdw_reg = v3_get_shadow_region(guest_info, guest_pa);
 
-    *host_pa = v3_get_shadow_addr(shdw_reg, guest_pa);
-
     if ((shdw_reg == NULL) ||
        (shdw_reg->host_type == SHDW_REGION_INVALID) ||
        (shdw_reg->host_type == SHDW_REGION_FULL_HOOK)){
@@ -78,6 +76,8 @@ int guest_pa_to_host_pa(struct guest_info * guest_info, addr_t guest_pa, addr_t
        return -1;
     }
 
+    *host_pa = v3_get_shadow_addr(shdw_reg, guest_pa);
+
     return 0;
 }