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Matt Mullins b8f70953c1 x86/entry/32: Pass cr2 to do_async_page_fault() 
Commit a0d14b8909 ("x86/mm, tracing: Fix CR2 corruption") added the
address parameter to do_async_page_fault(), but does not pass it from the
32-bit entry point.  To plumb it through, factor-out
common_exception_read_cr2 in the same fashion as common_exception, and uses
it from both page_fault and async_page_fault.

For a 32-bit KVM guest, this fixes:

  Run /sbin/init as init process
  Starting init: /sbin/init exists but couldn't execute it (error -14)

Fixes: a0d14b8909 ("x86/mm, tracing: Fix CR2 corruption")
Signed-off-by: Matt Mullins <mmullins@fb.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/20190724042058.24506-1-mmullins@fb.com
 		2019-07-24 12:17:39 +02:00
..
syscalls clone3-v5.3 2019-07-11 10:09:44 -07:00
vdso Kbuild updates for v5.3 (2nd) 2019-07-20 09:34:55 -07:00
vsyscall 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
Makefile License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
calling.h x86/paravirt: Make read_cr2() CALLEE_SAVE 2019-07-17 23:17:37 +02:00
common.c arm64 updates for 5.3: 2019-07-08 09:54:55 -07:00
entry_32.S x86/entry/32: Pass cr2 to do_async_page_fault() 2019-07-24 12:17:39 +02:00
entry_64.S Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2019-07-20 11:24:49 -07:00
entry_64_compat.S x86/entry/64/compat: Fix stack switching for XEN PV 2019-01-18 00:39:33 +01:00
syscall_32.c syscalls/x86: Unconditionally enable 'struct pt_regs' based syscalls on x86_64 2018-04-05 16:59:38 +02:00
syscall_64.c syscalls/x86: Unconditionally enable 'struct pt_regs' based syscalls on x86_64 2018-04-05 16:59:38 +02:00
thunk_32.S treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 474 2019-06-19 17:09:11 +02:00
thunk_64.S x86/entry: Fix thunk function ELF sizes 2019-07-18 21:01:04 +02:00