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linux/arch/x86/realmode/rm
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H. Peter Anvin 9751d76275 x86-64, reboot: Be more paranoid in 64-bit reboot=bios 
Be a bit more paranoid in the transition back to 16-bit mode.  In
particular, in case the kernel is residing above the 4 GiB mark,
switch to the trampoline GDT, and make the jump after turning off
paging a far jump.  In theory, none of this should matter, but it is
exactly the kind of things that broken SMM or virtualization software
could trip up on.

Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Link: http://lkml.kernel.org/r/tip-jopx7y6g6dbcx4tpal8q0jlr@git.kernel.org
2012-06-21 10:25:03 -07:00
..
.gitignore x86, realmode: realmode.bin infrastructure 2012-05-08 11:41:48 -07:00
bioscall.S x86, realmode: flattened rm hierachy 2012-05-08 11:48:45 -07:00
copy.S x86, realmode: flattened rm hierachy 2012-05-08 11:48:45 -07:00
header.S x86-64, reboot: Allow reboot=bios and reboot-cpu override on x86-64 2012-06-17 10:51:01 -07:00
Makefile x86-64, reboot: Allow reboot=bios and reboot-cpu override on x86-64 2012-06-17 10:51:01 -07:00
realmode.h x86, realmode: Move end signature into header.S 2012-05-21 00:02:45 -07:00
realmode.lds.S x86, realmode: don't copy real_mode_header 2012-05-08 11:48:45 -07:00
reboot.S x86-64, reboot: Be more paranoid in 64-bit reboot=bios 2012-06-21 10:25:03 -07:00
regs.c x86, realmode: flattened rm hierachy 2012-05-08 11:48:45 -07:00
stack.S x86, realmode: fix 64-bit wakeup sequence 2012-05-08 11:48:11 -07:00
trampoline_32.S x86, realmode: Move not-common bits out of trampoline_common.S 2012-05-16 13:44:10 -07:00
trampoline_64.S x86, realmode: Change EFER to a single u64 field 2012-05-16 14:02:05 -07:00
trampoline_common.S x86, realmode: Move not-common bits out of trampoline_common.S 2012-05-16 13:44:10 -07:00
video-bios.c x86, realmode: flattened rm hierachy 2012-05-08 11:48:45 -07:00
video-mode.c x86, realmode: flattened rm hierachy 2012-05-08 11:48:45 -07:00
video-vesa.c x86, realmode: flattened rm hierachy 2012-05-08 11:48:45 -07:00
video-vga.c x86, realmode: flattened rm hierachy 2012-05-08 11:48:45 -07:00
wakemain.c x86, realmode: flattened rm hierachy 2012-05-08 11:48:45 -07:00
wakeup_asm.S x86, realmode: Move end signature into header.S 2012-05-21 00:02:45 -07:00
wakeup.h x86, realmode: Move end signature into header.S 2012-05-21 00:02:45 -07:00