Patchwork [8/9] vl.c: Check the asked ram_size later.

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Submitter Alexander Graf
Date July 27, 2011, 1:30 p.m.
Message ID <1311773457-8842-9-git-send-email-agraf@suse.de>
Download mbox | patch
Permalink /patch/107064/
State New
Headers show

Comments

Alexander Graf - July 27, 2011, 1:30 p.m.
From: Anthony PERARD <anthony.perard@citrix.com>

As a Xen guest can have more than 2GB of RAM on a 32bit host, we move
the conditions after than we now if we run one Xen or not.

[agraf] separate xen branch from ram_size check

Signed-off-by: Anthony PERARD <anthony.perard@citrix.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
---
 vl.c |   16 ++++++++++------
 1 files changed, 10 insertions(+), 6 deletions(-)

Patch

diff --git a/vl.c b/vl.c
index 4b6688b..d8c7c01 100644
--- a/vl.c
+++ b/vl.c
@@ -2440,11 +2440,6 @@  int main(int argc, char **argv, char **envp)
                     exit(1);
                 }
 
-                /* On 32-bit hosts, QEMU is limited by virtual address space */
-                if (value > (2047 << 20) && HOST_LONG_BITS == 32) {
-                    fprintf(stderr, "qemu: at most 2047 MB RAM can be simulated\n");
-                    exit(1);
-                }
                 if (value != (uint64_t)(ram_addr_t)value) {
                     fprintf(stderr, "qemu: ram size too large\n");
                     exit(1);
@@ -3099,8 +3094,17 @@  int main(int argc, char **argv, char **envp)
         exit(1);
 
     /* init the memory */
-    if (ram_size == 0)
+    if (ram_size == 0) {
         ram_size = DEFAULT_RAM_SIZE * 1024 * 1024;
+    }
+
+    if (!xen_enabled()) {
+        /* On 32-bit hosts, QEMU is limited by virtual address space */
+        if (ram_size > (2047 << 20) && HOST_LONG_BITS == 32) {
+            fprintf(stderr, "qemu: at most 2047 MB RAM can be simulated\n");
+            exit(1);
+        }
+    }
 
     /* init the dynamic translator */
     cpu_exec_init_all(tb_size * 1024 * 1024);