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[Xen-devel] [PATCH 1/2] Add support to hotplug entry in SRAT table

To: Keir Fraser <keir.fraser@xxxxxxxxxxxxx>, "xen-devel@xxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxx>
Subject: [Xen-devel] [PATCH 1/2] Add support to hotplug entry in SRAT table
From: "Jiang, Yunhong" <yunhong.jiang@xxxxxxxxx>
Date: Tue, 8 Dec 2009 18:03:12 +0800
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Thread-index: Acp37abzTehYXbheS56Y5sGQ8inB5w==
Thread-topic: [PATCH 1/2] Add support to hotplug entry in SRAT table
This patch revert changeset 20053:ebb07c5934c8, so that in next patch, we will 
add support for hotplug memory entry in SRAT table.

Signed-off-by: Jiang, Yunhong <yunhong.jiang@xxxxxxxxx>

Revert changeset 20053 to add memory hot-add support

diff -r d0b030008814 xen/arch/x86/srat.c
--- a/xen/arch/x86/srat.c       Fri Nov 27 08:09:26 2009 +0000
+++ b/xen/arch/x86/srat.c       Mon Nov 30 20:51:33 2009 +0800
@@ -185,21 +185,10 @@ acpi_numa_memory_affinity_init(struct ac
-       if (ma->flags & ACPI_SRAT_MEM_HOT_PLUGGABLE) {
-               if (page_is_ram_type(paddr_to_pfn(start), 
-                       printk(KERN_INFO "SRAT: hot-pluggable zone found 
%"PRIx64" - %"PRIx64" \n",
+       /* It is fine to add this area to the nodes data it will be used later*/
+       if (ma->flags & ACPI_SRAT_MEM_HOT_PLUGGABLE)
+               printk(KERN_INFO "SRAT: hot plug zone found %"PRIx64" - 
%"PRIx64" \n",
                                start, end);
-               else {
-                       /* TODO: This range contains no existing memory yet,
-                        * and shouldn't be included in nodes' [start, end]. It
-                        * will be covered with physical memory hotplug support
-                        * in future.
-                        */
-                       printk(KERN_INFO "SRAT: future hotplug zone found 
%"PRIx64" - %"PRIx64" \n",
-                               start, end);
-                       return;
-               }
-       }
        i = conflicting_nodes(start, end);
        if (i == node) {

Attachment: revert_20053.patch
Description: revert_20053.patch

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