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Diffstat (limited to 'arch/x86/kernel/cpu/common.c')
-rw-r--r--arch/x86/kernel/cpu/common.c35
1 files changed, 21 insertions, 14 deletions
diff --git a/arch/x86/kernel/cpu/common.c b/arch/x86/kernel/cpu/common.c
index 235cd615b89d..4f9e31912a25 100644
--- a/arch/x86/kernel/cpu/common.c
+++ b/arch/x86/kernel/cpu/common.c
@@ -22,31 +22,38 @@
22#include "cpu.h" 22#include "cpu.h"
23 23
24DEFINE_PER_CPU(struct gdt_page, gdt_page) = { .gdt = { 24DEFINE_PER_CPU(struct gdt_page, gdt_page) = { .gdt = {
25 [GDT_ENTRY_KERNEL_CS] = { 0x0000ffff, 0x00cf9a00 }, 25 [GDT_ENTRY_KERNEL_CS] = { { { 0x0000ffff, 0x00cf9a00 } } },
26 [GDT_ENTRY_KERNEL_DS] = { 0x0000ffff, 0x00cf9200 }, 26 [GDT_ENTRY_KERNEL_DS] = { { { 0x0000ffff, 0x00cf9200 } } },
27 [GDT_ENTRY_DEFAULT_USER_CS] = { 0x0000ffff, 0x00cffa00 }, 27 [GDT_ENTRY_DEFAULT_USER_CS] = { { { 0x0000ffff, 0x00cffa00 } } },
28 [GDT_ENTRY_DEFAULT_USER_DS] = { 0x0000ffff, 0x00cff200 }, 28 [GDT_ENTRY_DEFAULT_USER_DS] = { { { 0x0000ffff, 0x00cff200 } } },
29 /* 29 /*
30 * Segments used for calling PnP BIOS have byte granularity. 30 * Segments used for calling PnP BIOS have byte granularity.
31 * They code segments and data segments have fixed 64k limits, 31 * They code segments and data segments have fixed 64k limits,
32 * the transfer segment sizes are set at run time. 32 * the transfer segment sizes are set at run time.
33 */ 33 */
34 [GDT_ENTRY_PNPBIOS_CS32] = { 0x0000ffff, 0x00409a00 },/* 32-bit code */ 34 /* 32-bit code */
35 [GDT_ENTRY_PNPBIOS_CS16] = { 0x0000ffff, 0x00009a00 },/* 16-bit code */ 35 [GDT_ENTRY_PNPBIOS_CS32] = { { { 0x0000ffff, 0x00409a00 } } },
36 [GDT_ENTRY_PNPBIOS_DS] = { 0x0000ffff, 0x00009200 }, /* 16-bit data */ 36 /* 16-bit code */
37 [GDT_ENTRY_PNPBIOS_TS1] = { 0x00000000, 0x00009200 },/* 16-bit data */ 37 [GDT_ENTRY_PNPBIOS_CS16] = { { { 0x0000ffff, 0x00009a00 } } },
38 [GDT_ENTRY_PNPBIOS_TS2] = { 0x00000000, 0x00009200 },/* 16-bit data */ 38 /* 16-bit data */
39 [GDT_ENTRY_PNPBIOS_DS] = { { { 0x0000ffff, 0x00009200 } } },
40 /* 16-bit data */
41 [GDT_ENTRY_PNPBIOS_TS1] = { { { 0x00000000, 0x00009200 } } },
42 /* 16-bit data */
43 [GDT_ENTRY_PNPBIOS_TS2] = { { { 0x00000000, 0x00009200 } } },
39 /* 44 /*
40 * The APM segments have byte granularity and their bases 45 * The APM segments have byte granularity and their bases
41 * are set at run time. All have 64k limits. 46 * are set at run time. All have 64k limits.
42 */ 47 */
43 [GDT_ENTRY_APMBIOS_BASE] = { 0x0000ffff, 0x00409a00 },/* 32-bit code */ 48 /* 32-bit code */
49 [GDT_ENTRY_APMBIOS_BASE] = { { { 0x0000ffff, 0x00409a00 } } },
44 /* 16-bit code */ 50 /* 16-bit code */
45 [GDT_ENTRY_APMBIOS_BASE+1] = { 0x0000ffff, 0x00009a00 }, 51 [GDT_ENTRY_APMBIOS_BASE+1] = { { { 0x0000ffff, 0x00009a00 } } },
46 [GDT_ENTRY_APMBIOS_BASE+2] = { 0x0000ffff, 0x00409200 }, /* data */ 52 /* data */
53 [GDT_ENTRY_APMBIOS_BASE+2] = { { { 0x0000ffff, 0x00409200 } } },
47 54
48 [GDT_ENTRY_ESPFIX_SS] = { 0x00000000, 0x00c09200 }, 55 [GDT_ENTRY_ESPFIX_SS] = { { { 0x00000000, 0x00c09200 } } },
49 [GDT_ENTRY_PERCPU] = { 0x00000000, 0x00000000 }, 56 [GDT_ENTRY_PERCPU] = { { { 0x00000000, 0x00000000 } } },
50} }; 57} };
51EXPORT_PER_CPU_SYMBOL_GPL(gdt_page); 58EXPORT_PER_CPU_SYMBOL_GPL(gdt_page);
52 59