Commit Graph

7 Commits

Author SHA1 Message Date
Yazen Ghannam
5828c46f2c x86/mce/AMD: Save MCA_IPID in MCE struct on SMCA systems
The MCA_IPID register uniquely identifies a bank's type and instance
on Scalable MCA systems. We should save the value of this register
in struct mce along with the other relevant error information. This
ensures that we can decode errors without relying on system software to
correlate the bank to the type.

Signed-off-by: Yazen Ghannam <Yazen.Ghannam@amd.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Link: http://lkml.kernel.org/r/1472680624-34221-1-git-send-email-Yazen.Ghannam@amd.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2016-09-13 15:23:12 +02:00
Yazen Ghannam
db819d60f6 x86/mce: Add support for new MCA_SYND register
Syndrome information is no longer contained in MCA_STATUS for SMCA
systems but in a new register - MCA_SYND.

Add a synd field to struct mce to hold MCA_SYND register value. Add it
to the end of struct mce to maintain compatibility with old versions of
mcelog. Also, add it to the respective tracepoint.

Signed-off-by: Yazen Ghannam <Yazen.Ghannam@amd.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Link: http://lkml.kernel.org/r/1467633035-32080-1-git-send-email-Yazen.Ghannam@amd.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2016-09-13 15:23:06 +02:00
Borislav Petkov
c0ec382e19 x86/RAS: Remove mce.usable_addr
It is useless and we can use the function instead. Besides,
mcelog(8) hasn't managed to make use of it yet. So kill it.

Signed-off-by: Borislav Petkov <bp@suse.de>
Acked-by: Tony Luck <tony.luck@intel.com>
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Brian Gerst <brgerst@gmail.com>
Cc: Denys Vlasenko <dvlasenk@redhat.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/1448350880-5573-3-git-send-email-bp@alien8.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2015-11-24 09:12:35 +01:00
Gabriel Laskar
7e0abcd6b7 x86/mce: Include linux/ioctl.h in uapi mce header
asm/ioctls.h contains definition for termios, not just the _IO* macros.

This error was found with a tool in development used to generate
automated pretty-printing functions for ioctl decoding in strace.

Signed-off-by: Gabriel Laskar <gabriel@lse.epita.fr>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Borislav Petkov <bp@suse.de>
Link: http://lkml.kernel.org/r/1444141657-14898-2-git-send-email-gabriel@lse.epita.fr
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2015-10-11 21:24:27 +02:00
Borislav Petkov
20d51a426f x86/mce: Reuse one of the u16 padding fields in 'struct mce'
... to save the error severity of the MCE and whether the
reported address of the error is usable.

Signed-off-by: Borislav Petkov <bp@suse.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Tony Luck <tony.luck@intel.com>
Link: http://lkml.kernel.org/r/1439396985-12812-2-git-send-email-bp@alien8.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2015-08-13 10:12:50 +02:00
Borislav Petkov
f51bde6f0d x86, MCE: Retract most UAPI exports
Retract back most macro definitions which went into the
user-visible mce.h header. Even though those bits are mostly
hardware-defined/-architectural, their naming is not. If we export them
to userspace, any kernel unification/renaming/cleanup cannot be done
anymore since those are effectively cast in stone. Besides, if userspace
wants those definitions, they can write their own defines and go crazy.

Signed-off-by: Borislav Petkov <bp@suse.de>
2013-01-09 14:49:02 +01:00
David Howells
af170c5061 UAPI: (Scripted) Disintegrate arch/x86/include/asm
Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Michael Kerrisk <mtk.manpages@gmail.com>
Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Acked-by: Dave Jones <davej@redhat.com>
2012-12-14 22:37:13 +00:00