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 <s...@chromium.org>
Reviewed-by: Bin Meng <bmeng...@gmail.com>
---
Changes in v2: None
arch/x86/cpu/cpu.c | 1 +
arch/x86/include/asm/global_data.h | 1 +
2 files changed, 2 insertions(+)
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
--
2.2.0.rc0.207.ga3a616c
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