diff options
author | H. Peter Anvin <hpa@zytor.com> | 2008-01-30 07:33:02 -0500 |
---|---|---|
committer | Ingo Molnar <mingo@elte.hu> | 2008-01-30 07:33:02 -0500 |
commit | 88089519f302f1296b4739be45699f06f728ec31 (patch) | |
tree | a0ffb023be68d0b83503e77ba4a9d9b43acea88b /include/asm-x86 | |
parent | c4d9ba6da9f050ebb7e0d70769e3dca0fd45334f (diff) |
x86 setup: initialize LDTR and TR to make life easier to Intel VT
Intel VT doesn't like to engage when the protected-mode state isn't
fully initialized. Make life easier for it by initializing LDTR (to
null) and TR (to a dummy hunk of low memory which will never actually
be touched.)
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'include/asm-x86')
-rw-r--r-- | include/asm-x86/segment.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/include/asm-x86/segment.h b/include/asm-x86/segment.h index 1ff05a9f5513..57c8d3723836 100644 --- a/include/asm-x86/segment.h +++ b/include/asm-x86/segment.h | |||
@@ -9,6 +9,9 @@ | |||
9 | #define GDT_ENTRY_BOOT_DS (GDT_ENTRY_BOOT_CS + 1) | 9 | #define GDT_ENTRY_BOOT_DS (GDT_ENTRY_BOOT_CS + 1) |
10 | #define __BOOT_DS (GDT_ENTRY_BOOT_DS * 8) | 10 | #define __BOOT_DS (GDT_ENTRY_BOOT_DS * 8) |
11 | 11 | ||
12 | #define GDT_ENTRY_BOOT_TSS (GDT_ENTRY_BOOT_CS + 2) | ||
13 | #define __BOOT_TSS (GDT_ENTRY_BOOT_TSS * 8) | ||
14 | |||
12 | #ifdef CONFIG_X86_32 | 15 | #ifdef CONFIG_X86_32 |
13 | /* | 16 | /* |
14 | * The layout of the per-CPU GDT under Linux: | 17 | * The layout of the per-CPU GDT under Linux: |