linux_dsm_epyc7002/arch/powerpc
Mahesh Salgaonkar 74845bc2fa powerpc/book3s: Fix guest MC delivery mechanism to avoid soft lockups in guest.
Currently we forward MCEs to guest which have been recovered by guest.
And for unhandled errors we do not deliver the MCE to guest. It looks like
with no support of FWNMI in qemu, guest just panics whenever we deliver the
recovered MCEs to guest. Also, the existig code used to return to host for
unhandled errors which was casuing guest to hang with soft lockups inside
guest and makes it difficult to recover guest instance.

This patch now forwards all fatal MCEs to guest causing guest to crash/panic.
And, for recovered errors we just go back to normal functioning of guest
instead of returning to host. This fixes soft lockup issues in guest.
This patch also fixes an issue where guest MCE events were not logged to
host console.

Signed-off-by: Mahesh Salgaonkar <mahesh@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2014-06-11 19:15:15 +10:00
..
boot Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc 2014-06-10 18:54:22 -07:00
configs powerpc: Remove platforms/wsp and associated pieces 2014-06-11 16:35:38 +10:00
crypto powerpc: Fix compile of sha1-powerpc-asm.S on 32-bit 2013-03-05 16:56:26 +11:00
include powerpc/eeh: Dump PE location code 2014-06-11 19:12:23 +10:00
kernel powerpc/book3s: Increment the mce counter during machine_check_early call. 2014-06-11 19:15:14 +10:00
kvm powerpc/book3s: Fix guest MC delivery mechanism to avoid soft lockups in guest. 2014-06-11 19:15:15 +10:00
lib powerpc: fix typo 'CONFIG_PPC_CPU' 2014-06-11 17:04:25 +10:00
math-emu powerpc: Correct emulated mtfsf instruction 2014-04-07 10:33:11 +10:00
mm Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc 2014-06-10 18:54:22 -07:00
net net: filter: add jited flag to indicate jit compiled filters 2014-03-31 00:45:08 -04:00
oprofile cpufreq: remove unused notifier: CPUFREQ_{SUSPENDCHANGE|RESUMECHANGE} 2014-03-19 14:10:24 +01:00
perf powerpc/perf/hv-24x7: Catalog version number is be64, not be32 2014-04-28 16:31:50 +10:00
platforms powerpc/eeh: Dump PE location code 2014-06-11 19:12:23 +10:00
sysdev powerpc/powernv: Enable POWER8 doorbell IPIs 2014-06-11 17:05:12 +10:00
xmon powerpc/xmon: avoid format string leaking to printk 2014-06-11 17:04:03 +10:00
Kconfig powerpc/numa: Enable CONFIG_HAVE_MEMORYLESS_NODES 2014-05-28 13:35:34 +10:00
Kconfig.debug powerpc: Remove platforms/wsp and associated pieces 2014-06-11 16:35:38 +10:00
Makefile Merge branch 'merge' into next 2014-05-28 13:30:12 +10:00
relocs_check.pl Fix warning typo "CONFIG_RELCOATABLE" 2013-05-29 15:11:30 +02:00