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| author |   Nicholas Piggin <npiggin@gmail.com> | 2019-08-02 20:56:33 +1000 |
|---|---|---|
| committer |   Michael Ellerman <mpe@ellerman.id.au> | 2019-08-30 10:32:35 +1000 |
| commit | 7290f3b3d3e66b54720f23079ffc60e0b7bbb0cc (patch) | |
| tree | 682cb91a6401457b5d9189a4c4e291f3ad65617a /arch/powerpc/kernel/mce_power.c | |
| parent | powerpc/64s/exception: machine check use correct cfar for late handler (diff) | |
| download | linux-dev-7290f3b3d3e66b54720f23079ffc60e0b7bbb0cc.tar.xz linux-dev-7290f3b3d3e66b54720f23079ffc60e0b7bbb0cc.zip | |
powerpc/64s/powernv: machine check dump SLB contents
Re-use the code introduced in pseries to save and dump the contents
of the SLB in the case of an SLB involved machine check exception.
This patch also avoids allocating the SLB save array on pseries radix.
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20190802105709.27696-9-npiggin@gmail.com
Diffstat (limited to 'arch/powerpc/kernel/mce_power.c')
| -rw-r--r-- | arch/powerpc/kernel/mce_power.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/powerpc/kernel/mce_power.c b/arch/powerpc/kernel/mce_power.c index b6cbe3449358..356e7b99f661 100644 --- a/arch/powerpc/kernel/mce_power.c +++ b/arch/powerpc/kernel/mce_power.c @@ -405,6 +405,8 @@ static int mce_handle_ierror(struct pt_regs *regs, /* attempt to correct the error */ switch (table[i].error_type) { case MCE_ERROR_TYPE_SLB: + if (local_paca->in_mce == 1) + slb_save_contents(local_paca->mce_faulty_slbs); handled = mce_flush(MCE_FLUSH_SLB); break; case MCE_ERROR_TYPE_ERAT: @@ -490,6 +492,8 @@ static int mce_handle_derror(struct pt_regs *regs, /* attempt to correct the error */ switch (table[i].error_type) { case MCE_ERROR_TYPE_SLB: + if (local_paca->in_mce == 1) + slb_save_contents(local_paca->mce_faulty_slbs); if (mce_flush(MCE_FLUSH_SLB)) handled = 1; break; |