[PATCH PTI v2 5/6] x86/pti: Map the vsyscall page if needed

Make VSYSCALLs work fully in PTI mode. Signed-off-by: Andy Lutomirski --- arch/x86/entry/vsyscall/vsyscall_64.c | 6 ++-- arch/x86/include/asm/pgtable.h| 6 +++- arch/x86/include/asm/pgtable_64.h | 9 +++-- arch/x86/include/asm/vsyscall.h | 1 +

[PATCH PTI v2 5/6] x86/pti: Map the vsyscall page if needed

Make VSYSCALLs work fully in PTI mode. Signed-off-by: Andy Lutomirski --- arch/x86/entry/vsyscall/vsyscall_64.c | 6 ++-- arch/x86/include/asm/pgtable.h| 6 +++- arch/x86/include/asm/pgtable_64.h | 9 +++-- arch/x86/include/asm/vsyscall.h | 1 + arch/x86/mm/pti.c