OpenCloudOS-Kernel/arch/x86/power
Andy Lutomirski 1ef55be16e x86/asm: Get rid of __read_cr4_safe()
We use __read_cr4() vs __read_cr4_safe() inconsistently.  On
CR4-less CPUs, all CR4 bits are effectively clear, so we can make
the code simpler and more robust by making __read_cr4() always fix
up faults on 32-bit kernels.

This may fix some bugs on old 486-like CPUs, but I don't have any
easy way to test that.

Signed-off-by: Andy Lutomirski <luto@kernel.org>
Cc: Brian Gerst <brgerst@gmail.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: david@saggiorato.net
Link: http://lkml.kernel.org/r/ea647033d357d9ce2ad2bbde5a631045f5052fb6.1475178370.git.luto@kernel.org
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2016-09-30 12:40:12 +02:00
..
Makefile x86: Fix resume from suspend when CONFIG_CC_STACKPROTECTOR 2009-07-08 13:20:13 +02:00
cpu.c x86/asm: Get rid of __read_cr4_safe() 2016-09-30 12:40:12 +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: Use __pa() for physical address computation 2016-08-16 00:39:37 +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