x86: Add UV EFI table entry v4

Look for a UV entry in the EFI tables.

Signed-off-by: Russ Anderson <rja@sgi.com>
Signed-off-by: Paul Jackson <pj@sgi.com>
Acked-by: Huang Ying <ying.huang@intel.com>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

2 files changed, 8 insertions, 0 deletions

diff --git a/arch/x86/kernel/efi.c b/arch/x86/kernel/efi.c
index 945a31cdd81f..1119d247fe11 100644
--- a/arch/x86/kernel/efi.c
+++ b/arch/x86/kernel/efi.c
@@ -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);
diff --git a/include/linux/efi.h b/include/linux/efi.h
index 807373d467f7..bb66feb164bd 100644
--- a/include/linux/efi.h
+++ b/include/linux/efi.h
@@ -208,6 +208,9 @@ typedef efi_status_t efi_set_virtual_address_map_t (unsigned long memory_map_siz
 #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;