I suppose the other possible fix would be to make sure that on powerpc sets sm to 0 on line 1288:
            # get the domain's shadow memory requirement
sm = int(math.ceil(self.image.getDomainShadowMemory(m) / 1024.0))
            if self.info['shadow_memory'] > sm:
                sm = self.info['shadow_memory']

I dunno where that comes from.

Also we spoke about using this to initialize the htab, so once we get the memory stuff straightened out then we need can come up with the right value here.
-JX

On Aug 21, 2006, at 4:58 PM, Jimi Xenidis wrote:


On Aug 21, 2006, at 4:00 PM, Hollis Blanchard wrote:

On Sun, 2006-08-20 at 13:28 -0400, Jimi Xenidis wrote:
Hollis, I'm sure you have a better way to do this in the TCL.
I'll be adding some shadow ops to the hypervisor, mainly to make sure everyone knows that it is disabled, but this TCL was still problematic.
-JX

On Aug 20, 2006, at 1:12 PM, Xen patchbot-xenppc-unstable wrote:

# HG changeset patch
# User Jimi Xenidis <[EMAIL PROTECTED]>
# Node ID a7abc95d4ce4177acd9cfbd58476d521352f9ff7
# Parent  6b9124f9d89d58eb81847813dc0043ba3896b919
[TOOLS] avoid shadow ops for POWERPC

Signed-off-by: Jimi Xenidis <[EMAIL PROTECTED]>
---
 tools/python/xen/xend/XendDomainInfo.py |    9 ++++++---
 1 files changed, 6 insertions(+), 3 deletions(-)

diff -r 6b9124f9d89d -r a7abc95d4ce4 tools/python/xen/xend/
XendDomainInfo.py
--- a/tools/python/xen/xend/XendDomainInfo.py   Sun Aug 20 13:02:16
2006 -0400
+++ b/tools/python/xen/xend/XendDomainInfo.py   Sun Aug 20 13:06:37
2006 -0400
@@ -1293,9 +1293,12 @@ class XendDomainInfo:
# Make sure there's enough RAM available for the domain
             balloon.free(m + sm * 1024)

-            # Set up the shadow memory
-            sm = xc.shadow_mem_control(self.domid, mb=sm)
-            self.info['shadow_memory'] = sm
+            if os.uname()[4] in ('ppc64'):
+                self.info['shadow_memory'] = 0
+            else:
+                # Set up the shadow memory
+                sm = xc.shadow_mem_control(self.domid, mb=sm)
+                self.info['shadow_memory'] = sm

             init_reservation = self.info['memory'] * 1024
             if os.uname()[4] in ('ia64', 'ppc64'):

Would a workaround on the Xen side make this unnecessary? In fact it
seems the current Xen code should already work, since xend will only
call PPC's shadow_mem_control() with mb=0.

Can we back out the patch above?

Actually, the xen code sees a non-zero value, thats when I made the python change.
-JX



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