Revised check for already-launched VM

[palacios.git] / linux_usr / v3_create.c

diff --git a/linux_usr/v3_create.c b/linux_usr/v3_create.c
index a73297f..3605702 100644 (file)
--- a/linux_usr/v3_create.c
+++ b/linux_usr/v3_create.c
@@ -29,11 +29,11 @@ int main(int argc, char* argv[]) {
     memset(&guest_img, 0, sizeof(struct v3_guest_img));
 
     if (argc <= 2) {
-       printf("Usage: ./v3_ctrl <guest_img> <vm name>\n");
+       printf("usage: v3_create <guest_img> <vm name>\n");
        return -1;
     }
 
-    printf("Launching guest: %s\n", filename);
+    printf("Creating guest: %s\n", filename);
 
     guest_fd = open(filename, O_RDONLY); 
 
@@ -52,12 +52,16 @@ int main(int argc, char* argv[]) {
     
     // load guest image into user memory
     guest_img.guest_data = malloc(guest_img.size);
+    if (!guest_img.guest_data) {
+            printf("ERROR: could not allocate memory for guest image\n");
+            return -1;
+    }
 
     read_file(guest_fd, guest_img.size, guest_img.guest_data);
     
     close(guest_fd);
 
-    printf("Loaded guest image. Launching to V3Vee\n");
+    printf("Loaded guest image. Creation begins.\n");
     
     strncpy(guest_img.name, name, 127);