diff options
| author | Balbir Singh <bsingharora@gmail.com> | 2017-09-29 14:26:53 +1000 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2017-10-16 23:12:01 +1100 |
| commit | ba41e1e1ccb9771ce41a3b8e2121f95486e76ac9 (patch) | |
| tree | a6ca6c4b6e2cd1ce5eabf605b9ec2884fbf912de /arch/powerpc/kernel/exceptions-64s.S | |
| parent | 81b61fa7a065e639d097b09c303e3212e4264fac (diff) | |
powerpc/mce: Hookup derror (load/store) UE errors
Extract physical_address for UE errors by walking the page
tables for the mm and address at the NIP, to extract the
instruction. Then use the instruction to find the effective
address via analyse_instr().
We might have page table walking races, but we expect them to
be rare, the physical address extraction is best effort. The idea
is to then hook up this infrastructure to memory failure eventually.
Signed-off-by: Balbir Singh <bsingharora@gmail.com>
Reviewed-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc/kernel/exceptions-64s.S')
| -rw-r--r-- | arch/powerpc/kernel/exceptions-64s.S | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/powerpc/kernel/exceptions-64s.S b/arch/powerpc/kernel/exceptions-64s.S index 8c32dd4cac20..ce04b1c2ac8e 100644 --- a/arch/powerpc/kernel/exceptions-64s.S +++ b/arch/powerpc/kernel/exceptions-64s.S @@ -232,7 +232,7 @@ BEGIN_FTR_SECTION addi r10,r10,1 /* increment paca->in_mce */ sth r10,PACA_IN_MCE(r13) /* Limit nested MCE to level 4 to avoid stack overflow */ - cmpwi r10,4 + cmpwi r10,MAX_MCE_DEPTH bgt 2f /* Check if we hit limit of 4 */ std r11,GPR1(r1) /* Save r1 on the stack. */ std r11,0(r1) /* make stack chain pointer */ |