diff options
author | Mahesh Salgaonkar <mahesh@linux.vnet.ibm.com> | 2013-10-30 10:35:11 -0400 |
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committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2013-12-05 00:04:39 -0500 |
commit | e22a22740c1ac23aaa10835f026b3549ee3e4e75 (patch) | |
tree | b9657323d8977882dab4d970316f88281466e9ed /arch/powerpc/perf/callchain.c | |
parent | 0440705049b041d84268ea57f6e90e2f16618897 (diff) |
powerpc/book3s: Flush SLB/TLBs if we get SLB/TLB machine check errors on power7.
If we get a machine check exception due to SLB or TLB errors, then flush
SLBs/TLBs and reload SLBs to recover. We do this in real mode before turning
on MMU. Otherwise we would run into nested machine checks.
If we get a machine check when we are in guest, then just flush the
SLBs and continue. This patch handles errors for power7. The next
patch will handle errors for power8
Signed-off-by: Mahesh Salgaonkar <mahesh@linux.vnet.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/perf/callchain.c')
0 files changed, 0 insertions, 0 deletions