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| author | H. Peter Anvin <hpa@zytor.com> | 2008-01-30 13:33:02 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-01-30 13:33:02 +0100 |
| commit | 88089519f302f1296b4739be45699f06f728ec31 (patch) | |
| tree | a0ffb023be68d0b83503e77ba4a9d9b43acea88b /include/asm-x86/segment.h | |
| parent | x86 setup: make PM transition more paranoid; cleanup 32-bit entry (diff) | |
| download | linux-88089519f302f1296b4739be45699f06f728ec31.tar.xz linux-88089519f302f1296b4739be45699f06f728ec31.zip | |
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 '')
| -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 @@ #define GDT_ENTRY_BOOT_DS (GDT_ENTRY_BOOT_CS + 1) #define __BOOT_DS (GDT_ENTRY_BOOT_DS * 8) +#define GDT_ENTRY_BOOT_TSS (GDT_ENTRY_BOOT_CS + 2) +#define __BOOT_TSS (GDT_ENTRY_BOOT_TSS * 8) + #ifdef CONFIG_X86_32 /* * The layout of the per-CPU GDT under Linux: |