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| author | Simon Glass <sjg@chromium.org> | 2015-04-28 20:25:15 -0600 |
|---|---|---|
| committer | Simon Glass <sjg@chromium.org> | 2015-04-29 21:02:34 -0600 |
| commit | 52845296be8190c3f581090d6336fa033f2bd2d8 (patch) | |
| tree | fe344edf3466a1a6a2664d7ae99f968fa923c41d /arch | |
| parent | 837a136fc7cfb712858502a03c8d0ae91bea6e0d (diff) | |
| download | u-boot-imx-52845296be8190c3f581090d6336fa033f2bd2d8.zip u-boot-imx-52845296be8190c3f581090d6336fa033f2bd2d8.tar.gz u-boot-imx-52845296be8190c3f581090d6336fa033f2bd2d8.tar.bz2 | |
x86: Store the GDT pointer in global_data
When we start up additional CPUs we want them to use the same Global
Descriptor Table. Store the address of this in global_data so we can
reference it later.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/x86/cpu/cpu.c | 1 | ||||
| -rw-r--r-- | arch/x86/include/asm/global_data.h | 1 |
2 files changed, 2 insertions, 0 deletions
diff --git a/arch/x86/cpu/cpu.c b/arch/x86/cpu/cpu.c index 02e66d8..78eb3fe 100644 --- a/arch/x86/cpu/cpu.c +++ b/arch/x86/cpu/cpu.c @@ -133,6 +133,7 @@ static void load_gdt(const u64 *boot_gdt, u16 num_entries) void setup_gdt(gd_t *id, u64 *gdt_addr) { + id->arch.gdt = gdt_addr; /* CS: code, read/execute, 4 GB, base 0 */ gdt_addr[X86_GDT_ENTRY_32BIT_CS] = GDT_ENTRY(0xc09b, 0, 0xfffff); diff --git a/arch/x86/include/asm/global_data.h b/arch/x86/include/asm/global_data.h index 5ee06eb..4d9eac6 100644 --- a/arch/x86/include/asm/global_data.h +++ b/arch/x86/include/asm/global_data.h @@ -68,6 +68,7 @@ struct arch_global_data { /* MRC training data to save for the next boot */ char *mrc_output; unsigned int mrc_output_len; + void *gdt; /* Global descriptor table */ }; #endif |