Files
android_kernel_xiaomi_sm8450/arch/powerpc/include/asm
Paul Mackerras 0d808df06a KVM: PPC: Book3S HV: Save/restore XER in checkpointed register state
When switching from/to a guest that has a transaction in progress,
we need to save/restore the checkpointed register state.  Although
XER is part of the CPU state that gets checkpointed, the code that
does this saving and restoring doesn't save/restore XER.

This fixes it by saving and restoring the XER.  To allow userspace
to read/write the checkpointed XER value, we also add a new ONE_REG
specifier.

The visible effect of this bug is that the guest may see its XER
value being corrupted when it uses transactions.

Fixes: e4e3812150 ("KVM: PPC: Book3S HV: Add transactional memory support")
Fixes: 0a8eccefcb ("KVM: PPC: Book3S HV: Add missing code for transaction reclaim on guest exit")
Cc: stable@vger.kernel.org # v3.15+
Signed-off-by: Paul Mackerras <paulus@ozlabs.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Paul Mackerras <paulus@ozlabs.org>
2016-11-21 15:17:55 +11:00
..
2016-01-12 20:46:53 +02:00
2015-07-13 10:10:54 +10:00
2013-04-18 13:03:53 +10:00
2015-05-28 15:31:53 +02:00
2016-06-21 15:30:56 +10:00
2014-04-09 12:53:28 +10:00
2012-03-28 18:30:02 +01:00
2011-11-08 14:51:46 +11:00
2014-06-25 18:49:40 -05:00
2015-01-12 05:04:13 -08:00
2015-02-03 18:47:18 +01:00
2016-03-04 23:50:27 -06:00
2014-11-03 12:12:32 +11:00
2016-09-09 16:18:07 +10:00
2016-03-01 19:27:20 +11:00
2015-02-23 14:52:04 +11:00
2016-08-07 23:50:09 -04:00
2013-12-09 11:40:25 +11:00
2016-09-20 20:57:12 +10:00
2016-07-19 20:17:07 +10:00
2016-09-20 20:57:12 +10:00
2016-05-11 21:53:49 +10:00
2016-06-14 13:58:26 +10:00
2016-09-23 07:54:22 +10:00
2016-06-21 15:30:56 +10:00
2016-06-14 13:58:26 +10:00
2016-06-14 13:58:26 +10:00
2013-11-06 14:13:49 +11:00
2012-09-17 16:31:51 +10:00
2016-07-21 18:51:42 +10:00
2016-06-14 13:58:26 +10:00
2014-02-17 11:19:37 +11:00
2015-05-05 13:35:39 -06:00