linux-kernel - [PATCH 1/7] x86: Add UV EFI table entry

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Message-ID: <20081015201246.GB197213@sgi.com>
Date:	Wed, 15 Oct 2008 15:12:46 -0500
From:	Russ Anderson <rja@....com>
To:	Ingo Molnar <mingo@...e.hu>, tglx@...utronix.de,
	linux-kernel@...r.kernel.org
Cc:	Russ Anderson <rja@....com>, Huang Ying <ying.huang@...el.com>,
	Jack Steiner <steiner@....com>
Subject: [PATCH 1/7] x86: Add UV EFI table entry

[PATCH 1/7] x86: Add UV EFI table entry

Add an EFI table entry for SGI UV system.
Look for the entry in the EFI tables.

Signed-off-by: Russ Anderson <rja@....com>
Signed-off-by: Paul Jackson <pj@....com>

---
 arch/x86/kernel/efi.c |    4 ++++
 include/linux/efi.h   |    4 ++++
 2 files changed, 8 insertions(+)

Index: linux/arch/x86/kernel/efi.c
===================================================================
--- linux.orig/arch/x86/kernel/efi.c	2008-10-15 09:56:13.000000000 -0500
+++ linux/arch/x86/kernel/efi.c	2008-10-15 09:56:23.000000000 -0500
@@ -367,6 +367,10 @@ void __init efi_init(void)
 			efi.smbios = config_tables[i].table;
 			printk(" SMBIOS=0x%lx ", config_tables[i].table);
 		} else if (!efi_guidcmp(config_tables[i].guid,
+					UV_SYSTEM_TABLE_GUID)) {
+			efi.uv_systab = config_tables[i].table;
+			printk(" UVsystab=0x%lx ", config_tables[i].table);
+		} else if (!efi_guidcmp(config_tables[i].guid,
 					HCDP_TABLE_GUID)) {
 			efi.hcdp = config_tables[i].table;
 			printk(" HCDP=0x%lx ", config_tables[i].table);
Index: linux/include/linux/efi.h
===================================================================
--- linux.orig/include/linux/efi.h	2008-10-15 09:56:13.000000000 -0500
+++ linux/include/linux/efi.h	2008-10-15 09:56:23.000000000 -0500
@@ -208,6 +208,9 @@ typedef efi_status_t efi_set_virtual_add
 #define EFI_GLOBAL_VARIABLE_GUID \
     EFI_GUID(  0x8be4df61, 0x93ca, 0x11d2, 0xaa, 0x0d, 0x00, 0xe0, 0x98, 0x03, 0x2b, 0x8c )
 
+#define UV_SYSTEM_TABLE_GUID \
+    EFI_GUID(  0x3b13a7d4, 0x633e, 0x11dd, 0x93, 0xec, 0xda, 0x25, 0x56, 0xd8, 0x95, 0x93 )
+
 typedef struct {
 	efi_guid_t guid;
 	unsigned long table;
@@ -255,6 +258,7 @@ extern struct efi {
 	unsigned long boot_info;	/* boot info table */
 	unsigned long hcdp;		/* HCDP table */
 	unsigned long uga;		/* UGA table */
+	unsigned long uv_systab;	/* UV system table */
 	efi_get_time_t *get_time;
 	efi_set_time_t *set_time;
 	efi_get_wakeup_time_t *get_wakeup_time;
-- 
Russ Anderson, OS RAS/Partitioning Project Lead  
SGI - Silicon Graphics Inc          rja@....com
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