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Peter Zijlstra 55aedddb61 x86/paravirt: Make read_cr2() CALLEE_SAVE 
The one paravirt read_cr2() implementation (Xen) is actually quite trivial
and doesn't need to clobber anything other than the return register.

Making read_cr2() CALLEE_SAVE avoids all the PUSH/POP nonsense and allows
more convenient use from assembly.

Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Juergen Gross <jgross@suse.com>
Cc: bp@alien8.de
Cc: rostedt@goodmis.org
Cc: luto@kernel.org
Cc: torvalds@linux-foundation.org
Cc: hpa@zytor.com
Cc: dave.hansen@linux.intel.com
Cc: zhe.he@windriver.com
Cc: joel@joelfernandes.org
Cc: devel@etsukata.com
Link: https://lkml.kernel.org/r/20190711114335.887392493@infradead.org
 		2019-07-17 23:17:37 +02:00
..
alpha Kconfig updates for v5.3 2019-07-12 16:06:27 -07:00
arc Kbuild updates for v5.3 2019-07-12 16:03:16 -07:00
arm ARM: 2019-07-12 15:35:14 -07:00
arm64 This is the bulk of pin control changes for the v5.3 kernel 2019-07-13 15:02:27 -07:00
c6x Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu 2019-07-10 21:42:03 -07:00
csky Kconfig updates for v5.3 2019-07-12 16:06:27 -07:00
h8300 Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu 2019-07-10 21:42:03 -07:00
hexagon Merge branch 'siginfo-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace 2019-07-08 21:48:15 -07:00
ia64 TTY / Serial driver updates for 5.3-rc1 2019-07-11 15:38:21 -07:00
m68k Merge branch 'akpm' (patches from Andrew) 2019-07-12 11:40:28 -07:00
microblaze clone3-v5.3 2019-07-11 10:09:44 -07:00
mips asm-generic: remove ptrace.h 2019-07-12 15:41:33 -07:00
nds32 Kconfig updates for v5.3 2019-07-12 16:06:27 -07:00
nios2 nios2 update for v5.3-rc1 2019-07-12 15:38:05 -07:00
openrisc dma-mapping updates for Linux 5.3 2019-07-12 15:13:55 -07:00
parisc Kbuild updates for v5.3 2019-07-12 16:03:16 -07:00
powerpc HMM patches for 5.3 2019-07-14 19:42:11 -07:00
riscv Kconfig updates for v5.3 2019-07-12 16:06:27 -07:00
s390 Kconfig updates for v5.3 2019-07-12 16:06:27 -07:00
sh asm-generic: remove ptrace.h 2019-07-12 15:41:33 -07:00
sparc Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc 2019-07-13 16:04:19 -07:00
um This pull request contains the following changes for UML: 2019-07-14 17:17:34 -07:00
unicore32 Kconfig updates for v5.3 2019-07-12 16:06:27 -07:00
x86 x86/paravirt: Make read_cr2() CALLEE_SAVE 2019-07-17 23:17:37 +02:00
xtensa dma-mapping updates for Linux 5.3 2019-07-12 15:13:55 -07:00
.gitignore
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Kconfig dma-direct: provide generic support for uncached kernel segments 2019-06-03 16:00:08 +02:00