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Revert "Always set WP in CR0."

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This reverts SVN r18960 / git commit
8e496a7abc.

The patch series had been fully reviewed on edk2-devel, but it got
committed as a single squashed patch. Revert it for now.

Link: http://thread.gmane.org/gmane.comp.bios.edk2.devel/4951
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Laszlo Ersek <lersek@redhat.com>

git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@18977 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
Laszlo Ersek
2015-11-27 12:00:26 +00:00
committed by lersek
parent 83886d746e
commit fc8c919525
9 changed files with 24 additions and 28 deletions
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2
UefiCpuPkg/PiSmmCpuDxeSmm/X64/SmiEntry.S
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@@ -144,7 +144,7 @@ Base:
orb $1,%ah
wrmsr
movq %cr0, %rbx
orl $0x080010000, %ebx # enable paging + WP
btsl $31, %ebx
movq %rbx, %cr0
retf
LongMode: # long mode (64-bit code) starts here