remove check on ram_size

the initial check on the ram_size in qemu is completely unnecessary and
it is even broken on systems where dom0 is 32 bits while xen is 64 bits.
This patch solves the problem removing the check.

Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>

diff --git a/vl.c b/vl.c
index 62bed05acb42a5495733d09d2afd1d7d545f5ec3..06d966261188087d239e16e6c5003af4e9956f03 100644 (file)
--- a/vl.c
+++ b/vl.c
@@ -5104,7 +5104,7 @@ int main(int argc, char **argv, char **envp)
                     fprintf(stderr, "qemu: invalid ram size: %s\n", optarg);
                     exit(1);
                 }
-
+#ifndef CONFIG_DM
                 /* On 32-bit hosts, QEMU is limited by virtual address space */
                 if (value > (2047 << 20)
 #ifndef USE_KQEMU
@@ -5118,6 +5118,7 @@ int main(int argc, char **argv, char **envp)
                     fprintf(stderr, "qemu: ram size too large\n");
                     exit(1);
                 }
+#endif
                 ram_size = value;
                 break;
             }
@@ -5682,6 +5683,7 @@ int main(int argc, char **argv, char **envp)
         ram_size += 1 * MEM_G; /* skip 3G-4G MMIO, LEGACY_IO_SPACE etc. */
 #endif
 
+#ifndef CONFIG_DM
     if (machine->ram_require & RAMSIZE_FIXED) {
         if (ram_size > 0) {
             if (ram_size < phys_ram_size) {
@@ -5700,7 +5702,6 @@ int main(int argc, char **argv, char **envp)
         phys_ram_size += ram_size;
     }
 
-#ifndef CONFIG_DM
     phys_ram_base = qemu_vmalloc(phys_ram_size);
     if (!phys_ram_base) {
         fprintf(stderr, "Could not allocate physical memory\n");