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[PATCH] i386: i386 separate hardware-defined TSS from Linux additions

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On Thu, 2007-03-29 at 13:16 +0200, Andi Kleen wrote:
> Please clean it up properly with two structs.

Not sure about this, now I've done it.  Running it here.

If you like it, I can do x86-64 as well.

==
lguest defines its own TSS struct because the "struct tss_struct"
contains linux-specific additions.  Andi asked me to split the struct
in processor.h.

Unfortunately it makes usage a little awkward.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Andi Kleen <ak@suse.de>
This commit is contained in:
Rusty Russell
2007-05-02 19:27:13 +02:00
committed by Andi Kleen
parent 82d1bb725e
commit a75c54f933
8 changed files with 47 additions and 36 deletions
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6
arch/i386/kernel/sysenter.c
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@@ -183,10 +183,10 @@ void enable_sep_cpu(void)
return;
}
tss->ss1 = __KERNEL_CS;
tss->esp1 = sizeof(struct tss_struct) + (unsigned long) tss;
tss->x86_tss.ss1 = __KERNEL_CS;
tss->x86_tss.esp1 = sizeof(struct tss_struct) + (unsigned long) tss;
wrmsr(MSR_IA32_SYSENTER_CS, __KERNEL_CS, 0);
wrmsr(MSR_IA32_SYSENTER_ESP, tss->esp1, 0);
wrmsr(MSR_IA32_SYSENTER_ESP, tss->x86_tss.esp1, 0);
wrmsr(MSR_IA32_SYSENTER_EIP, (unsigned long) sysenter_entry, 0);
put_cpu();
}