[Xen-changelog] [xen-unstable] Fix vcpu hotplug bug: transfer vcpu_avail hex string to qemu

[Xen patchbot-unstable <patchbot-unstable@xxxxxxxxxxxxxxxxxxx>]

# HG changeset patch
# User Keir Fraser <keir.fraser@xxxxxxxxxx>
# Date 1269070504 0
# Node ID c5e1a0b720ba8e73953841aa883f48d061a216bd
# Parent  7b63f677f245ff42c7b9218875b54ca812c4c75e
Fix vcpu hotplug bug: transfer vcpu_avail hex string to qemu

Currently qemu has a bug: When maxvcpus > 64, qemu will get wrong
vcpu bitmap (s->cpus_sts[i]) since it only get bitmap from a long
variable.

This patch, cooperate with another qemu patch, is to fix this bug.
This patch transfer a vcpu_avail string in a hex string format, so
that at qemu side it's more easier to get vcpu bitmap from hex string,
especially when many vcpus, like more than 64.

(Also update QEMU_TAG for matching qemu-side update)

Signed-off-by: Liu, Jinsong <jinsong.liu@xxxxxxxxx>
---
 Config.mk                      |    7 +++----
 tools/python/xen/xend/image.py |    2 +-
 2 files changed, 4 insertions(+), 5 deletions(-)

diff -r 7b63f677f245 -r c5e1a0b720ba Config.mk
--- a/Config.mk Thu Mar 18 11:03:07 2010 +0000
+++ b/Config.mk Sat Mar 20 07:35:04 2010 +0000
@@ -153,10 +153,9 @@ QEMU_REMOTE=http://xenbits.xensource.com
 # CONFIG_QEMU ?= ../qemu-xen.git
 CONFIG_QEMU ?= $(QEMU_REMOTE)
 
-QEMU_TAG := xen-4.0.0-rc6
-#QEMU_TAG ?= e5d14857cd67490bf956d97c8888c0be95ed3f78
-# Thu Feb 18 15:36:29 2010 +0000
-# When xen_platform_pci=0 also disable fixed Xen platform ioports
+QEMU_TAG ?= 435718fb726b80462b4028128301dcf92214cc6a
+# Thu Mar 18 16:48:03 2010 +0000
+# Fix const-correctness in dma bitmap hex parser
 
 OCAML_XENSTORED_REPO=http://xenbits.xensource.com/ext/xen-ocaml-tools.hg
 
diff -r 7b63f677f245 -r c5e1a0b720ba tools/python/xen/xend/image.py
--- a/tools/python/xen/xend/image.py    Thu Mar 18 11:03:07 2010 +0000
+++ b/tools/python/xen/xend/image.py    Sat Mar 20 07:35:04 2010 +0000
@@ -838,7 +838,7 @@ class HVMImageHandler(ImageHandler):
     def parseDeviceModelArgs(self, vmConfig):
         ret = ImageHandler.parseDeviceModelArgs(self, vmConfig)
         ret = ret + ['-vcpus', str(self.vm.getVCpuCount())]
-        ret = ret + ['-vcpu_avail', str(self.vm.getVCpuAvail())]
+        ret = ret + ['-vcpu_avail', hex(self.vm.getVCpuAvail())]
 
         if self.kernel:
             log.debug("kernel         = %s", self.kernel)

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