The patchset fixes issues with LDT remap for PTI: - Layout collision due to KASLR with 5-level paging; - Information leak via Meltdown-like attack; Please review and consider applying. v3: - Split out cleanup in map_ldt_struct() into a separate patch v2: - Rebase to the Linus' tree + fix conflict with new documentation of kernel memory layout + fix few mistakes in layout documentation - Fix typo in commit message Kirill A. Shutemov (3): x86/mm: Move LDT remap out of KASLR region on 5-level paging x86/ldt: Unmap PTEs for the slot before freeing LDT pages x86/ldt: Remove unused variable in map_ldt_struct() Documentation/x86/x86_64/mm.txt | 34 +++++++------- arch/x86/include/asm/page_64_types.h | 12 ++--- arch/x86/include/asm/pgtable_64_types.h | 4 +- arch/x86/kernel/ldt.c | 59 ++++++++++++++++--------- arch/x86/xen/mmu_pv.c | 6 +-- 5 files changed, 67 insertions(+), 48 deletions(-) -- 2.19.1
