[PATCH] diable HVM auto-balloon on ia64

[PATCH] diable HVM auto-balloon on ia64

[Alex Williamson]

  The HVM auto-ballooning is causing problems for paravirtualized guests
on HVM enabled ia64 systems.  This allows them to boot again.  Maybe we
can take advantage of this when we have better ballooning support on
xen/ia64.

Signed-off-by: Alex Williamson <alex.williamson@hp.com>
---

diff -r 4dcb93547710 tools/python/xen/xend/image.py
--- a/tools/python/xen/xend/image.py	Sun May 21 09:55:15 2006 +0100
+++ b/tools/python/xen/xend/image.py	Sun May 21 14:25:19 2006 -0600
@@ -146,7 +146,7 @@ class ImageHandler:
         """@return The memory required, in KiB, by the domain to store the
         given amount, also in KiB.  This is normally just mem, but if HVM is
         supported, keep a little extra free."""
-        if 'hvm' in xc.xeninfo()['xen_caps']:
+        if 'hvm' in xc.xeninfo()['xen_caps'] and os.uname()[4] != 'ia64':
             mem_kb += 4*1024;
         return mem_kb

Re: [Xen-ia64-devel] [PATCH] diable HVM auto-balloon on ia64

[Alex Williamson]

On Sun, 2006-05-21 at 15:07 -0600, Alex Williamson wrote:
> diff -r 4dcb93547710 tools/python/xen/xend/image.py
> --- a/tools/python/xen/xend/image.py	Sun May 21 09:55:15 2006 +0100
> +++ b/tools/python/xen/xend/image.py	Sun May 21 14:25:19 2006 -0600
> @@ -146,7 +146,7 @@ class ImageHandler:
>          """@return The memory required, in KiB, by the domain to store the
>          given amount, also in KiB.  This is normally just mem, but if HVM is
>          supported, keep a little extra free."""
> -        if 'hvm' in xc.xeninfo()['xen_caps']:
> +        if 'hvm' in xc.xeninfo()['xen_caps'] and os.uname()[4] != 'ia64':
>              mem_kb += 4*1024;
>          return mem_kb

   Looks like this is just a partial solution, VTi guests are still
broken with only this change.  Instead, we probably need to look at cset
10040.  I suspect we don't yet have the ballooning support and need to
do the allocation up front.  Thanks,

	Alex

-- 
Alex Williamson                             HP Linux & Open Source Lab