Re: [Xen-devel] [Patch 0/3] Disable ACPI SRAT, SLIT on dom0 <take 3>

[Akio Takebe <takebe_akio@jp.fujitsu.com>]

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Hi,

This patch is for ia64.

  On some ia64 NUMA machine, we cannot boot dom0.
  This issue is caused by different infomation LSAPIC and SRAT.
  Xen-ia64 modify LSAPIC IDs of dom0, but it does not modify SRAT.
  So we decide disabling SRAT, SLIT of dom0 as first step of NUMA work.

Signed-off-by: Akio Takebe <takebe_akio@jp.fujitsu.com>

Best Regards,

Akio Takebe

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# HG changeset patch
# User root@localhost.localdomain
# Date 1185747688 -32400
# Node ID 78c2fc4d6a836e11d4e947e29583b066cf2a9ee2
# Parent  e9def100a760f032c78c635f4d792a8432db1a97
Disable ACPI SRAT,SLIT table of dom0.

  On some ia64 NUMA machine, we cannot boot dom0.
  This issue is caused by different infomation LSAPIC and SRAT.
  Xen-ia64 modify LSAPIC IDs of dom0, but it does not modify SRAT.
  So we decide disabling SRAT, SLIT of dom0 as first step of NUMA work.

Signed-off-by: Akio Takebe <takebe_akio@jp.fujitsu.com>

diff -r e9def100a760 -r 78c2fc4d6a83 xen/arch/ia64/xen/dom_fw_dom0.c
--- a/xen/arch/ia64/xen/dom_fw_dom0.c	Mon Jul 30 07:20:42 2007 +0900
+++ b/xen/arch/ia64/xen/dom_fw_dom0.c	Mon Jul 30 07:21:28 2007 +0900
@@ -103,6 +103,7 @@ acpi_update_madt_checksum(unsigned long 
 /* base is physical address of acpi table */
 static void __init touch_acpi_table(void)
 {
+	int result;
 	lsapic_nbr = 0;
 
 	if (acpi_table_parse_madt(ACPI_MADT_LSAPIC, acpi_update_lsapic, 0) < 0)
@@ -110,6 +111,18 @@ static void __init touch_acpi_table(void
 	if (acpi_table_parse_madt(ACPI_MADT_PLAT_INT_SRC,
 				  acpi_patch_plat_int_src, 0) < 0)
 		printk("Error parsing MADT - no PLAT_INT_SRC entries\n");
+
+	result = acpi_table_disable(ACPI_SRAT);
+	if ( result == 0 )
+		printk("Success Disabling SRAT\n");
+	else if ( result != -ENOENT )
+		printk("ERROR: Failed Disabling SRAT\n");
+
+	result = acpi_table_disable(ACPI_SLIT);
+	if ( result == 0 )
+		printk("Success Disabling SLIT\n");
+	else if ( result != -ENOENT )
+		printk("ERROR: Failed Disabling SLIT\n");
 
 	acpi_table_parse(ACPI_APIC, acpi_update_madt_checksum);
 

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