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

["Magenheimer, Dan (HP Labs Fort Collins)" <dan.magenheimer@xxxxxx>]

Thank you for your patch!  I have added dom0_align
support and committed it to the xen-ia64-unstable tree. 

> -----Original Message-----
> From: xen-ia64-devel-bounces@xxxxxxxxxxxxxxxxxxx 
> [mailto:xen-ia64-devel-bounces@xxxxxxxxxxxxxxxxxxx] On Behalf 
> Of Masaki Kanno
> Sent: Monday, November 14, 2005 4:35 AM
> To: xen-ia64-devel@xxxxxxxxxxxxxxxxxxx
> Subject: [Xen-ia64-devel] [PATCH] dom0_mem support
> 
> 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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