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Subject[PATCH 0/3] PTI for x86-32 Fixes
Date
Hi,

here is a small patch-set to fix two small issues in the
PTI implementation for 32 bit x86. The issues are:

1) Fix the 32 bit PCID check. I used the wrong
operator there and this caused false-positive
warnings.

2) The other two patches make sure the init-hole is
not mapped into the user page-table. It is the
32 bit counterpart to commit

c40a56a7818c ('x86/mm/init: Remove freed kernel image areas from alias mapping')

for the 64 bit PTI implementation.

I tested that no-PAE, PAE and 64 bit kernel all boot and
have correct user page-tables with identical global mappings
between user and kernel.

Regards,

Joerg

Joerg Roedel (3):
x86/mm/pti: Fix 32 bit PCID check
x86/mm/pti: Don't clear permissions in pti_clone_pmd()
x86/mm/pti: Clone kernel-image on PTE level for 32 bit

arch/x86/mm/pti.c | 143 ++++++++++++++++++++++++++++++++++++++----------------
1 file changed, 100 insertions(+), 43 deletions(-)

--
2.7.4

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