[Xen-ia64-devel] [PATCH] dom0_mem support

[Masaki Kanno <kanno.masaki@xxxxxxxxxxxxxx>]

Hi, 

This is the first time I posted to this list, 
so please be gentle...

Attached is a small patch that supports dom0_mem parameter at boot 
option.
Usage is the likely same as that of x86.
ex. append="dom0_mem=768M ..."

Signed-off-by Masaki Kanno <kanno.masaki@xxxxxxxxxxxxxx>

Thanks,
Kan

diff -r bd234c9603ce xen/arch/ia64/xen/domain.c
--- a/xen/arch/ia64/xen/domain.c        Fri Nov 11 19:23:04 2005
+++ b/xen/arch/ia64/xen/domain.c        Mon Nov 14 04:27:03 2005
@@ -11,6 +11,7 @@
  */
 
 #include <xen/config.h>
+#include <xen/init.h>
 #include <xen/lib.h>
 #include <xen/errno.h>
 #include <xen/sched.h>
@@ -48,7 +49,7 @@
 
 #define CONFIG_DOMAIN0_CONTIGUOUS
 unsigned long dom0_start = -1L;
-unsigned long dom0_size = 512*1024*1024; //FIXME: Should be 
configurable
+unsigned long dom0_size = 512*1024*1024;
 //FIXME: alignment should be 256MB, lest Linux use a 256MB page size
 unsigned long dom0_align = 256*1024*1024;
 #ifdef DOMU_BUILD_STAGING
@@ -1154,3 +1155,17 @@
        }
        // FIXME SMP: Anything else needed here for SMP?
 }
+
+static void parse_dom0_mem(char *s)
+{
+    unsigned long long bytes;
+    bytes = parse_size_and_unit(s);
+    dom0_size = bytes;
+    
+    if (dom0_size % dom0_align)
+    {
+        dom0_size = (dom0_size / dom0_align + 1) * dom0_align;
+    }
+}
+custom_param("dom0_mem", parse_dom0_mem);
+

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