Rafael J. Wysocki e4630fdd47 x86/power/64: Always create temporary identity mapping correctly ... The low-level resume-from-hibernation code on x86-64 uses kernel_ident_mapping_init() to create the temoprary identity mapping, but that function assumes that the offset between kernel virtual addresses and physical addresses is aligned on the PGD level. However, with a randomized identity mapping base, it may be aligned on the PUD level and if that happens, the temporary identity mapping created by set_up_temporary_mappings() will not reflect the actual kernel identity mapping and the image restoration will fail as a result (leading to a kernel panic most of the time). To fix this problem, rework kernel_ident_mapping_init() to support unaligned offsets between KVA and PA up to the PMD level and make set_up_temporary_mappings() use it as approprtiate. Reported-and-tested-by: Thomas Garnier <thgarnie@google.com> Reported-by: Borislav Petkov <bp@suse.de> Suggested-by: Yinghai Lu <yinghai@kernel.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Acked-by: Yinghai Lu <yinghai@kernel.org>		2016-08-08 22:04:30 +02:00
..
cpu.c	x86 / hibernate: Use hlt_play_dead() when resuming from hibernation	2016-07-15 22:42:48 +02:00
hibernate_32.c	x86/cpufeature: Remove cpu_has_pse	2016-03-31 13:35:10 +02:00
hibernate_64.c	x86/power/64: Always create temporary identity mapping correctly	2016-08-08 22:04:30 +02:00
hibernate_asm_32.S	x86, gdt, hibernate: Store/load GDT for hibernate path.	2013-05-02 11:27:35 -07:00
hibernate_asm_64.S	x86/power/64: Do not refer to __PAGE_OFFSET from assembly code	2016-08-03 01:35:38 +02:00
Makefile