[U-Boot] [PATCH 13/20] x86: Store the GDT pointer in global_data

[Simon Glass]

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 at chromium.org>
---

 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 13b3baa..74bfed2 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