From 7916e2245d71aff10b48aab0ebdc754550c89539 Mon Sep 17 00:00:00 2001
From: bellard <bellard@c046a42c-6fe2-441c-8c8c-71466251a162>
Date: Tue, 1 Jul 2003 16:27:45 +0000
Subject: [PATCH] allow up to 256 MB of ram

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@307 c046a42c-6fe2-441c-8c8c-71466251a162
---
 i386-vl.ld |  2 +-
 vl.c       | 11 +++++++++--
 2 files changed, 10 insertions(+), 3 deletions(-)

diff --git a/i386-vl.ld b/i386-vl.ld
index e666ed83f8..428fe83e12 100644
--- a/i386-vl.ld
+++ b/i386-vl.ld
@@ -8,7 +8,7 @@ ENTRY(_start)
 SECTIONS
 {
   /* Read-only sections, merged into text segment: */
-  . = 0xa0000000 + SIZEOF_HEADERS;
+  . = 0xa8000000 + SIZEOF_HEADERS;
   .interp     : { *(.interp) 	}
   .hash          : { *(.hash)		}
   .dynsym        : { *(.dynsym)		}
diff --git a/vl.c b/vl.c
index 885958b16e..1596f61a94 100644
--- a/vl.c
+++ b/vl.c
@@ -56,7 +56,9 @@
 //#define DEBUG_UNUSED_IOPORT
 //#define DEBUG_IRQ_LATENCY
 
-#define PHYS_RAM_BASE 0xa8000000
+#define PHYS_RAM_BASE     0xac000000
+#define PHYS_RAM_MAX_SIZE (256 * 1024 * 1024)
+
 #define KERNEL_LOAD_ADDR   0x00100000
 #define INITRD_LOAD_ADDR   0x00400000
 #define KERNEL_PARAMS_ADDR 0x00090000
@@ -2640,6 +2642,11 @@ int main(int argc, char **argv)
             phys_ram_size = atoi(optarg) * 1024 * 1024;
             if (phys_ram_size <= 0)
                 help();
+            if (phys_ram_size > PHYS_RAM_MAX_SIZE) {
+                fprintf(stderr, "vl: at most %d MB RAM can be simulated\n",
+                        PHYS_RAM_MAX_SIZE / (1024 * 1024));
+                exit(1);
+            }
             break;
         case 'd':
             loglevel = 1;
@@ -2734,7 +2741,7 @@ int main(int argc, char **argv)
     params->mount_root_rdonly = 0;
     params->cl_magic = 0xA33F;
     params->cl_offset = params->commandline - (uint8_t *)params;
-    params->ext_mem_k = (phys_ram_size / 1024) - 1024;
+    params->alt_mem_k = (phys_ram_size / 1024) - 1024;
     for(i = optind + 1; i < argc; i++) {
         if (i != optind + 1)
             pstrcat(params->commandline, sizeof(params->commandline), " ");