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[Xen-devel] [PATCH][XEN][POWERPC] allocate shadow memory for PPC Linux d

To: Keir Fraser <keir@xxxxxxxxxxxxx>
Subject: [Xen-devel] [PATCH][XEN][POWERPC] allocate shadow memory for PPC Linux domains
From: Hollis Blanchard <hollisb@xxxxxxxxxx>
Date: Fri, 08 Dec 2006 14:25:15 -0600
Cc: xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxx>, xen-ppc-devel <xen-ppc-devel@xxxxxxxxxxxxxxxxxxx>
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Allocate shadow memory for PPC Linux domains.

Signed-off-by: Hollis Blanchard <hollisb@xxxxxxxxxx>

diff -r 9d83185b4c37 tools/python/xen/xend/image.py
--- a/tools/python/xen/xend/image.py	Fri Dec 01 19:11:02 2006 -0500
+++ b/tools/python/xen/xend/image.py	Tue Dec 05 10:44:22 2006 -0600
@@ -246,6 +246,15 @@ class PPC_LinuxImageHandler(LinuxImageHa
                               features       = self.vm.getFeatures(),
                               arch_args      = devtree.to_bin())
 
+    def getRequiredShadowMemory(self, shadow_mem_kb, maxmem_kb):
+        """@param shadow_mem_kb The configured shadow memory, in KiB.
+        @param maxmem_kb The configured maxmem, in KiB.
+        @return The corresponding required amount of shadow memory, also in
+        KiB.
+        PowerPC currently uses "shadow memory" to refer to the hash table."""
+        return max(maxmem_kb / 64, shadow_mem_kb)
+
+
 class PPC_ProseImageHandler(LinuxImageHandler):
 
     ostype = "prose"

-- 
Hollis Blanchard
IBM Linux Technology Center

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