Wei Huang b677dfae5a x86/boot/compressed/64: Set EFER.LME=1 in 32-bit trampoline before returning to long mode ... In some old AMD KVM implementation, guest's EFER.LME bit is cleared by KVM when the hypervsior detects that the guest sets CR0.PG to 0. This causes the guest OS to reboot when it tries to return from 32-bit trampoline code because the CPU is in incorrect state: CR4.PAE=1, CR0.PG=1, CS.L=1, but EFER.LME=0. As a precaution, set EFER.LME=1 as part of long mode activation procedure. This extra step won't cause any harm when Linux is booted on a bare-metal machine. Signed-off-by: Wei Huang <wei@redhat.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Cc: bp@alien8.de Cc: hpa@zytor.com Link: https://lkml.kernel.org/r/20190104054411.12489-1-wei@redhat.com		2019-01-29 21:58:59 +01:00
..
compressed	x86/boot/compressed/64: Set EFER.LME=1 in 32-bit trampoline before returning to long mode	2019-01-29 21:58:59 +01:00
tools	x86/boot: Add missing va_end() to die()	2018-11-28 20:06:07 +01:00
.gitignore
a20.c
apm.c
bioscall.S
bitops.h
boot.h	x86/boot: Simplify the detect_memory*() control flow	2018-11-06 21:05:01 +01:00
cmdline.c
code16gcc.h
copy.S
cpu.c
cpucheck.c	x86: Clean up 'sizeof x' => 'sizeof(x)'	2018-10-29 07:13:28 +01:00
cpuflags.c
cpuflags.h
ctype.h
early_serial_console.c	x86: Clean up 'sizeof x' => 'sizeof(x)'	2018-10-29 07:13:28 +01:00
edd.c	x86: Clean up 'sizeof x' => 'sizeof(x)'	2018-10-29 07:13:28 +01:00
genimage.sh
header.S	x86/boot: Mostly revert commit ae7e1238e6 ("Add ACPI RSDP address to setup_header")	2018-11-20 09:43:10 +01:00
install.sh
main.c	x86: Clean up 'sizeof x' => 'sizeof(x)'	2018-10-29 07:13:28 +01:00
Makefile
memory.c	x86/boot: Simplify the detect_memory*() control flow	2018-11-06 21:05:01 +01:00
mkcpustr.c
mtools.conf.in
pm.c
pmjump.S
printf.c
regs.c	x86: Clean up 'sizeof x' => 'sizeof(x)'	2018-10-29 07:13:28 +01:00
setup.ld
string.c
string.h
tty.c
version.c
vesa.h
video-bios.c
video-mode.c
video-vesa.c	x86: Clean up 'sizeof x' => 'sizeof(x)'	2018-10-29 07:13:28 +01:00
video-vga.c
video.c	x86: Clean up 'sizeof x' => 'sizeof(x)'	2018-10-29 07:13:28 +01:00
video.h