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| author | Tom Rini <trini@konsulko.com> | 2015-10-22 00:47:40 (GMT) |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2015-10-22 00:47:40 (GMT) |
| commit | 858dbdf8412cefb6dbc4eed63dc3de9744578455 (patch) | |
| tree | 7cca9f60b3d677b338defa3f4af74a1fff017071 /arch/x86/cpu/cpu.c | |
| parent | 89b5c81b75658b7ff66dea6c38a51dfecc9dd508 (diff) | |
| parent | e0ae64880b61fdeaf261fddd747efa80fa53d386 (diff) | |
| download | u-boot-858dbdf8412cefb6dbc4eed63dc3de9744578455.tar.xz | |
Merge git://git.denx.de/u-boot-x86
Diffstat (limited to 'arch/x86/cpu/cpu.c')
| -rw-r--r-- | arch/x86/cpu/cpu.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/arch/x86/cpu/cpu.c b/arch/x86/cpu/cpu.c index 1b76ca1..812c5e4 100644 --- a/arch/x86/cpu/cpu.c +++ b/arch/x86/cpu/cpu.c @@ -142,7 +142,12 @@ void arch_setup_gd(gd_t *new_gd) gdt_addr = new_gd->arch.gdt; - /* CS: code, read/execute, 4 GB, base 0 */ + /* + * CS: code, read/execute, 4 GB, base 0 + * + * Some OS (like VxWorks) requires GDT entry 1 to be the 32-bit CS + */ + gdt_addr[X86_GDT_ENTRY_UNUSED] = GDT_ENTRY(0xc09b, 0, 0xfffff); gdt_addr[X86_GDT_ENTRY_32BIT_CS] = GDT_ENTRY(0xc09b, 0, 0xfffff); /* DS: data, read/write, 4 GB, base 0 */ |