If a PCI device is removed during eeh_pe_report_edev(), edev->pdev
will change and can cause a crash, hold the PCI rescan/remove lock
while taking a copy of edev->pdev->bus.
Signed-off-by: Ganesh Goudar
---
v2: Hold rescan lock till we get the bus address.
v3: Now that we are taking co
y. On powernv the improvement
is not so significant.
Ganesh Goudar (1):
powerpc/eeh: Enable PHBs to recovery in parallel
arch/powerpc/include/asm/eeh_event.h | 7
arch/powerpc/include/asm/pci-bridge.h | 4 ++
arch/powerpc/kernel/eeh_driver.c | 27 +++-
arch/powerpc/k
.
Signed-off-by: Ganesh Goudar
---
v2: Include missing hunk, which modifies __eeh_send_failure_event.
---
arch/powerpc/include/asm/eeh_event.h | 7
arch/powerpc/include/asm/pci-bridge.h | 4 ++
arch/powerpc/kernel/eeh_driver.c | 27 +++-
arch/powerpc/kernel/eeh_event.c | 59
If a PCI device is removed during eeh_pe_report_edev(), edev->pdev
will change and can cause a crash, hold the PCI rescan/remove lock
while taking a copy of edev->pdev.
Signed-off-by: Ganesh Goudar
---
v2: Hold rescan lock till we get the bus address.
---
arch/powerpc/kernel/eeh_pe
If a PCI device is removed during eeh_pe_report_edev(), edev->pdev
will change and can cause a crash, hold the PCI rescan/remove lock
while taking a copy of edev->pdev.
Signed-off-by: Ganesh Goudar
---
arch/powerpc/kernel/eeh_pe.c | 2 ++
1 file changed, 2 insertions(+)
diff --git
nt if the state is not moved to permanent failure state.
Signed-off-by: Ganesh Goudar
---
V2:
* Elobrate the commit message.
* Fix formatting issues in commit message and comments.
---
arch/powerpc/kernel/eeh.c| 11 ++-
arch/powerpc/kernel/eeh_driver.c | 13 +++--
2 files ch
like failover.
Permanently disable the device if the presence check
fails.
Signed-off-by: Ganesh Goudar
---
arch/powerpc/kernel/eeh.c| 4 +++-
arch/powerpc/kernel/eeh_driver.c | 8 +++-
2 files changed, 10 insertions(+), 2 deletions(-)
diff --git a/arch/powerpc/kernel/eeh.c b/arch/po
.
Signed-off-by: Ganesh Goudar
---
arch/powerpc/include/asm/eeh_event.h | 7 +
arch/powerpc/include/asm/pci-bridge.h | 4 +++
arch/powerpc/kernel/eeh_driver.c | 27 +--
arch/powerpc/kernel/eeh_event.c | 38 ++-
arch/powerpc/kernel/eeh_pe.c
y. On powernv the improvement
is not so significant.
Ganesh Goudar (1):
powerpc/eeh: Enable PHBs to recovery in parallel
arch/powerpc/include/asm/eeh_event.h | 7 +
arch/powerpc/include/asm/pci-bridge.h | 4 +++
arch/powerpc/kernel/eeh_driver.c | 27 +--
arch/powerpc/k
n the constraint, above, the driver handlers are called by
traversing the tree of affected PEs from the top, stopping to call
handlers (in parallel) when a PE with devices is discovered. When the
calls for that PE are complete, traversal continues at each child PE.
Signed-off-by: Ganesh Goudar
---
Based on the original work from Sam Bobroff.
Give a unique ID to each recovery event, to ease log parsing
and prepare for parallel recovery.
Also add some new messages with a very simple format that may
be useful to log-parsers.
Signed-off-by: Ganesh Goudar
---
arch/powerpc/include/asm
blocking may be required. Care must be taken when ordering these locks
against the PCI rescan/remove lock and the device locks to avoid
deadlocking.
Signed-off-by: Ganesh Goudar
---
arch/powerpc/include/asm/eeh.h | 12 +-
arch/powerpc/kernel/eeh.c| 112
, Please comment.
Thanks.
V2:
* Since we now have event list per phb, Have per phb event list lock.
* Appropriate names given to the locks.
* Remove stale comments (few more to be removed).
* Initialize event_id to 0 instead of 1.
* And some cosmetic changes.
Ganesh Goudar (3):
powerpc/eeh
Based on the original work from Sam Bobroff.
Give a unique ID to each recovery event, to ease log parsing
and prepare for parallel recovery.
Also add some new messages with a very simple format that may
be useful to log-parsers.
Signed-off-by: Ganesh Goudar
---
arch/powerpc/include/asm
n the constraint, above, the driver handlers are called by
traversing the tree of affected PEs from the top, stopping to call
handlers (in parallel) when a PE with devices is discovered. When the
calls for that PE are complete, traversal continues at each child PE.
Signed-off-by: Ganesh Goudar
---
blocking may be required. Care must be taken when ordering these locks
against the PCI rescan/remove lock and the device locks to avoid
deadlocking.
Signed-off-by: Ganesh Goudar
---
arch/powerpc/include/asm/eeh.h | 6 +-
arch/powerpc/kernel/eeh.c| 112
, Please comment.
Thanks.
Ganesh Goudar (3):
powerpc/eeh: Synchronization for safety
powerpc/eeh: Provide a unique ID for each EEH recovery
powerpc/eeh: Asynchronous recovery
arch/powerpc/include/asm/eeh.h | 7 +-
arch/powerpc/include/asm/eeh_event.h | 10
ent failure)'
To fix the issue, set channel state to permanent failure after
notifying the drivers.
Fixes: 38ddc011478e ("powerpc/eeh: Make permanently failed devices
non-actionable")
Suggested-by: Mahesh Salgaonkar
Signed-off-by: Ganesh Goudar
---
arch/powerpc/kernel/eeh_driver.
NIP: [1e48]
MCE: CPU24: Initiator CPU
MCE: CPU24: Unknown
RTAS: event: 5, Type: Platform Error (224), Severity: 3
Signed-off-by: Ganesh Goudar
Reviewed-by: Mahesh Salgaonkar
---
V3: Rephrasing the commit message.
---
arch/powerpc/kernel/mce.c | 10 +++---
1 file changed, 7
/Store (foreign/control
memory) [Not recovered]
MCE: CPU24: PID: 1589811 Comm: inject-ra-err NIP: [1e48]
MCE: CPU24: Initiator CPU
MCE: CPU24: Unknown
RTAS: event: 5, Type: Platform Error (224), Severity: 3
Signed-off-by: Ganesh Goudar
Reviewed-by: Mahesh Salgaonkar
---
V2
machine_check_log_err() is not getting called for all
unrecoverable errors, And we are missing to log the error.
Raise irq work in save_mce_event() for unrecoverable errors,
So that we log the error from MCE event handling block in
timer handler.
Signed-off-by: Ganesh Goudar
---
arch/powerpc
KASAN
instrumentation.
Signed-off-by: Ganesh Goudar
---
v2: Force inline few more functions.
v3: Adding noinstr to few functions instead of __always_inline.
---
arch/powerpc/include/asm/hw_irq.h| 8
arch/powerpc/include/asm/interrupt.h | 2 +-
arch/powerpc/include/asm/rtas.h | 4
KASAN
instrumentation.
Signed-off-by: Ganesh Goudar
---
v2: Force inline few more functions.
---
arch/powerpc/include/asm/hw_irq.h| 8
arch/powerpc/include/asm/interrupt.h | 2 +-
arch/powerpc/include/asm/rtas.h | 4 ++--
arch/powerpc/kernel/rtas.c | 4 ++--
4 files
KASAN
instrumentation.
Signed-off-by: Ganesh Goudar
---
arch/powerpc/include/asm/interrupt.h | 2 +-
arch/powerpc/include/asm/rtas.h | 4 ++--
arch/powerpc/kernel/rtas.c | 4 ++--
3 files changed, 5 insertions(+), 5 deletions(-)
diff --git a/arch/powerpc/include/asm/interrupt.h
b
n the constraint, above, the driver handlers are called by
traversing the tree of affected PEs from the top, stopping to call
handlers (in parallel) when a PE with devices is discovered. When the
calls for that PE are complete, traversal continues at each child PE.
Signed-off-by: Ganesh Goudar
---
blocking may be required. Care must be taken when ordering these locks
against the PCI rescan/remove lock and the device locks to avoid
deadlocking.
Signed-off-by: Ganesh Goudar
---
arch/powerpc/include/asm/eeh.h | 6 +-
arch/powerpc/kernel/eeh.c| 112
in time taken in EEH recovery, Yet to be tested on powernv.
These patches were originally posted as separate RFCs, I think
posting them as single series would be more helpful, I know the
patches are too big, I will try to logically divide in next
iterations.
Thanks
Ganesh Goudar (3):
powerpc
Based on the original work from Sam Bobroff.
Give a unique ID to each recovery event, to ease log parsing
and prepare for parallel recovery.
Also add some new messages with a very simple format that may
be useful to log-parsers.
Signed-off-by: Ganesh Goudar
---
arch/powerpc/include/asm
in realmode.
To avoid this, program the decrementer and call the event
processing functions from timer handler.
Signed-off-by: Ganesh Goudar
---
V2:
* Use arch_irq_work_raise to raise decrementer interrupt.
* Avoid having atomic variable.
V3:
* Fix build error.
Reported by kernel test bot
in realmode.
To avoid this, program the decrementer and call the event
processing functions from timer handler.
Signed-off-by: Ganesh Goudar
---
V2:
* Use arch_irq_work_raise to raise decrementer interrupt.
* Avoid having atomic variable.
V3:
* Fix build error.
Reported by kernel test bot
pace.
Signed-off-by: Ganesh Goudar
---
arch/powerpc/kernel/mce.c | 8
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/arch/powerpc/kernel/mce.c b/arch/powerpc/kernel/mce.c
index fd829f7f25a4..55ccc651d1b0 100644
--- a/arch/powerpc/kernel/mce.c
+++ b/arch/powerpc/kernel/mce.
Add support to parse and log control memory access
error for pseries. These changes are made according to
PAPR v2.11 10.3.2.2.12.
Signed-off-by: Ganesh Goudar
---
arch/powerpc/platforms/pseries/ras.c | 36
1 file changed, 32 insertions(+), 4 deletions(-)
diff --git
receives SIGBUS.
Signed-off-by: Ganesh Goudar
---
tools/testing/selftests/powerpc/Makefile | 3 +-
tools/testing/selftests/powerpc/mce/Makefile | 7 ++
.../selftests/powerpc/mce/inject-ra-err.c | 65 +++
tools/testing/selftests/powerpc/mce/vas-api.h | 1 +
4 files changed
in realmode.
To avoid this, program the decrementer and call the event
processing functions from timer handler.
Signed-off-by: Ganesh Goudar
---
V2:
* Use arch_irq_work_raise to raise decrementer interrupt.
* Avoid having atomic variable.
V3:
* Fix build error.
Reported by kernel test bot
to enabled.
Signed-off-by: Ganesh Goudar
---
arch/powerpc/platforms/pseries/ras.c | 122 +++
1 file changed, 49 insertions(+), 73 deletions(-)
diff --git a/arch/powerpc/platforms/pseries/ras.c
b/arch/powerpc/platforms/pseries/ras.c
index 8613f9cc5798..62e1519b8355 100644
to enabled.
Signed-off-by: Ganesh Goudar
---
arch/powerpc/platforms/pseries/ras.c | 122 +++
1 file changed, 49 insertions(+), 73 deletions(-)
diff --git a/arch/powerpc/platforms/pseries/ras.c
b/arch/powerpc/platforms/pseries/ras.c
index 8613f9cc5798..62e1519b8355 100644
in realmode.
To avoid this, program the decrementer and call the event
processing functions from timer handler.
Signed-off-by: Ganesh Goudar
---
V2:
* Use arch_irq_work_raise to raise decrementer interrupt.
* Avoid having atomic variable.
---
arch/powerpc/include/asm/machdep.h | 2
to enabled.
Signed-off-by: Ganesh Goudar
---
arch/powerpc/platforms/pseries/ras.c | 122 +++
1 file changed, 49 insertions(+), 73 deletions(-)
diff --git a/arch/powerpc/platforms/pseries/ras.c
b/arch/powerpc/platforms/pseries/ras.c
index 8613f9cc5798..62e1519b8355 100644
in realmode.
To avoid this, program the decrementer and call the event
processing functions from timer handler.
Signed-off-by: Ganesh Goudar
---
arch/powerpc/include/asm/machdep.h | 2 +
arch/powerpc/include/asm/mce.h | 2 +
arch/powerpc/include/asm/paca.h | 1
+0xbc/0xd0
[c0001ebffcf0] [c000838c] machine_check_early_common+0x16c/0x1f4
Fixes: 74c3354bc1d89 ("powerpc/pseries/mce: restore msr before returning from
handler")
Signed-off-by: Ganesh Goudar
---
v2: Change in commit message.
---
arch/powerpc/kernel/mce.c | 16 ++--
1 file ch
pace.
Signed-off-by: Ganesh Goudar
---
v3: No changes.
v2: No changes.
---
arch/powerpc/kernel/mce.c | 8
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/arch/powerpc/kernel/mce.c b/arch/powerpc/kernel/mce.c
index 9d1e39d42e3e..5baf69503349 100644
--- a/arch/powerpc/ker
receives SIGBUS.
Signed-off-by: Ganesh Goudar
---
v3: Avoid using shell script to inject error.
v2: Fix build error.
---
tools/testing/selftests/powerpc/Makefile | 3 +-
tools/testing/selftests/powerpc/mce/Makefile | 7 ++
.../selftests/powerpc/mce/inject-ra-err.c | 65
Add support to parse and log control memory access
error for pseries. These changes are made according to
PAPR v2.11 10.3.2.2.12.
Signed-off-by: Ganesh Goudar
---
v3: Modify the commit log to mention the document according
to which changes are made.
Define and use a macro to check if the
] machine_check_queue_event+0xbc/0xd0
[c0001ebffcf0] [c000838c] machine_check_early_common+0x16c/0x1f4
Fixes: 74c3354bc1d89 ("powerpc/pseries/mce: restore msr before returning from
handler")
Signed-off-by: Ganesh Goudar
---
arch/powerpc/kernel/mce.c | 16 ++--
1 file c
countered in L2, as event structure will be
empty in L1.
"Machine Check Exception, Unknown event version 0".
Signed-off-by: Ganesh Goudar
---
arch/powerpc/include/asm/mce.h | 2 +-
arch/powerpc/kernel/mce.c | 7 +--
2 files changed, 6 insertions(+), 3 deletions(-)
diff --git a/ar
pace.
Signed-off-by: Ganesh Goudar
---
v2: No changes in this patch.
---
arch/powerpc/kernel/mce.c | 8
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/arch/powerpc/kernel/mce.c b/arch/powerpc/kernel/mce.c
index 47a683cd00d2..f3ef480bb739 100644
--- a/arch/powerpc/ker
receives SIGBUS.
Signed-off-by: Ganesh Goudar
---
v2: Fix build error.
---
tools/testing/selftests/powerpc/Makefile | 3 +-
tools/testing/selftests/powerpc/mce/Makefile | 6 +++
.../selftests/powerpc/mce/inject-ra-err.c | 42 +++
.../selftests/powerpc/mce/inject-ra-err.sh
Add support to parse and log control memory access
error for pseries.
Signed-off-by: Ganesh Goudar
---
v2: No changes in this patch.
---
arch/powerpc/platforms/pseries/ras.c | 21 +
1 file changed, 21 insertions(+)
diff --git a/arch/powerpc/platforms/pseries/ras.c
b/arch
Add support to parse and log control memory access
error for pseries.
Signed-off-by: Ganesh Goudar
---
arch/powerpc/platforms/pseries/ras.c | 21 +
1 file changed, 21 insertions(+)
diff --git a/arch/powerpc/platforms/pseries/ras.c
b/arch/powerpc/platforms/pseries/ras.c
receives SIGBUS.
Signed-off-by: Ganesh Goudar
---
tools/testing/selftests/powerpc/Makefile | 3 +-
tools/testing/selftests/powerpc/mce/Makefile | 6 +++
.../selftests/powerpc/mce/inject-ra-err.c | 42 +++
.../selftests/powerpc/mce/inject-ra-err.sh| 19 +
4 files
pace.
Signed-off-by: Ganesh Goudar
---
arch/powerpc/kernel/mce.c | 8
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/arch/powerpc/kernel/mce.c b/arch/powerpc/kernel/mce.c
index 47a683cd00d2..f3ef480bb739 100644
--- a/arch/powerpc/kernel/mce.c
+++ b/arch/powerpc/kernel/mce.
The error type is ICACHE and DCACHE, for case MCE_ERROR_TYPE_ICACHE.
Signed-off-by: Ganesh Goudar
---
arch/powerpc/platforms/pseries/ras.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/powerpc/platforms/pseries/ras.c
b/arch/powerpc/platforms/pseries/ras.c
index
] memcpy+0x88/0x90
[ 512.972456] MCE: CPU1: Initiator CPU
[ 512.972534] MCE: CPU1: Unknown
Signed-off-by: Ganesh Goudar
---
arch/powerpc/kernel/mce.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/arch/powerpc/kernel/mce.c b/arch/powerpc/kernel/mce.c
index 11f0cae086ed
on different architectures, So have
these variables in paca instead of having them as per-cpu variables
to avoid complications.
Signed-off-by: Ganesh Goudar
---
v2: Dynamically allocate memory for machine check event info.
v3: Remove check for hash mmu lpar, use memblock_alloc_try_nid
to
Maximum recursive depth of MCE is 4, Considering the maximum depth
allowed reduce the size of event to 10 from 100. This saves us ~19kB
of memory and has no fatal consequences.
Signed-off-by: Ganesh Goudar
---
v4: This patch is a fragment of the orignal patch which is
split into two.
v5
on different architectures, So have
these variables in paca instead of having them as per-cpu variables
to avoid complications.
Signed-off-by: Ganesh Goudar
---
v2: Dynamically allocate memory for machine check event info
v3: Remove check for hash mmu lpar, use memblock_alloc_try_nid
to
Maximum recursive depth of MCE is 4, Considering the maximum depth
allowed reduce the size of event to 10 from 100. This saves us ~19kB
of memory and has no fatal consequences.
Signed-off-by: Ganesh Goudar
---
v4: This patch is a fragment of the orignal patch which is
split into two
on different architectures, So have
these variables in paca instead of having them as per-cpu variables
to avoid complications.
Maximum recursive depth of MCE is 4, Considering the maximum depth
allowed reduce the size of event to 10 from 100.
Signed-off-by: Ganesh Goudar
---
v2: Dynamically
on different architectures, So have
these variables in paca instead of having them as per-cpu variables
to avoid complications.
Maximum recursive depth of MCE is 4, Considering the maximum depth
allowed reduce the size of event to 10 from 100.
Signed-off-by: Ganesh Goudar
---
v2: Dynamically
on different architectures, So have
these variables in paca instead of having them as per-cpu variables
to avoid complications.
Maximum recursive depth of MCE is 4, Considering the maximum depth
allowed reduce the size of event to 10 from 100.
Signed-off-by: Ganesh Goudar
---
arch/powerpc/include
To check machine check handling, add support to inject slb
multihit errors.
Cc: Kees Cook
Cc: Michal Suchánek
Co-developed-by: Mahesh Salgaonkar
Signed-off-by: Mahesh Salgaonkar
Signed-off-by: Ganesh Goudar
---
v5:
- Insert entries at SLB_NUM_BOLTED and SLB_NUM_BOLTED +1, remove index
To check machine check handling, add support to inject slb
multihit errors.
Cc: Kees Cook
Reviewed-by: Michal Suchánek
Co-developed-by: Mahesh Salgaonkar
Signed-off-by: Mahesh Salgaonkar
Signed-off-by: Ganesh Goudar
---
drivers/misc/lkdtm/Makefile | 1 +
drivers/misc/lkdtm
on pseries machine running in hash
mmu mode.
Fixes: 116ac378bb3f ("powerpc/64s: machine check interrupt update NMI
accounting")
Signed-off-by: Ganesh Goudar
---
arch/powerpc/kernel/mce.c | 7 +++
1 file changed, 3 insertions(+), 4 deletions(-)
diff --git a/arch/powerpc/kernel/mc
nesting is supported.
* Fix build errors and remove unused variables.
* Integrate error injection code into LKDTM.
* Add support to inject multihit in paca.
Ganesh Goudar (2):
powerpc/mce: remove nmi_enter/exit from real mode handler
lkdtm/powerpc: Add SLB multihit test
arch/powerpc/kernel
To check machine check handling, add support to inject slb
multihit errors.
Reviewed-by: Michal Suchánek
Co-developed-by: Mahesh Salgaonkar
Signed-off-by: Mahesh Salgaonkar
Signed-off-by: Ganesh Goudar
---
drivers/misc/lkdtm/Makefile | 1 +
drivers/misc/lkdtm/core.c
on pseries machine running in hash
mmu mode.
Fixes: 116ac378bb3f ("powerpc/64s: machine check interrupt update NMI
accounting")
Signed-off-by: Ganesh Goudar
---
arch/powerpc/kernel/mce.c | 10 ++
1 file changed, 6 insertions(+), 4 deletions(-)
diff --git a/arch/powerpc/kern
support to inject multihit in paca.
Ganesh Goudar (2):
powerpc/mce: remove nmi_enter/exit from real mode handler
lkdtm/powerpc: Add SLB multihit test
arch/powerpc/kernel/mce.c | 10 +-
drivers/misc/lkdtm/Makefile | 1 +
drivers/misc/lkdtm/core.c | 3
.
* Fix build errors and remove unused variables.
* Integrate error injection code into LKDTM.
* Add support to inject multihit in paca.
Ganesh Goudar (3):
powerpc/mce: remove nmi_enter/exit from real mode handler
lkdtm/powerpc: Add SLB multihit test
selftests/lkdtm: Enable selftest for SLB
on pseries machine running in hash
mmu mode.
Fixes: 116ac378bb3f ("powerpc/64s: machine check interrupt update NMI
accounting")
Signed-off-by: Ganesh Goudar
---
arch/powerpc/kernel/mce.c | 10 ++
1 file changed, 6 insertions(+), 4 deletions(-)
diff --git a/arch/powerpc/kern
Add support to inject slb multihit errors, to test machine
check handling.
Based on work by Mahesh Salgaonkar and Michal Suchánek.
Cc: Mahesh Salgaonkar
Cc: Michal Suchánek
Signed-off-by: Ganesh Goudar
---
drivers/misc/lkdtm/Makefile | 4 ++
drivers/misc/lkdtm/core.c| 3 +
drivers
Add PPC_SLB_MULTIHIT to lkdtm selftest framework.
Signed-off-by: Ganesh Goudar
---
tools/testing/selftests/lkdtm/tests.txt | 1 +
1 file changed, 1 insertion(+)
diff --git a/tools/testing/selftests/lkdtm/tests.txt
b/tools/testing/selftests/lkdtm/tests.txt
index 9d266e79c6a2..7eb3cf91c89e
To test machine check handling, add debugfs interface to inject
slb multihit errors.
To inject slb multihit:
#echo 1 > /sys/kernel/debug/powerpc/mce_error_inject/inject_slb_multihit
Signed-off-by: Ganesh Goudar
Signed-off-by: Mahesh Salgaonkar
---
arch/powerpc/Kconfig.debug |
possible.
Ganesh Goudar (3):
powerpc/mce: remove nmi_enter/exit from real mode handler
powerpc/mce: Add debugfs interface to inject MCE
selftest/powerpc: Add slb multihit selftest
arch/powerpc/Kconfig.debug| 9 ++
arch/powerpc/kernel/mce.c | 7
Add selftest to check if the system recovers from slb multihit
errors.
Signed-off-by: Ganesh Goudar
---
tools/testing/selftests/powerpc/Makefile | 3 ++-
tools/testing/selftests/powerpc/mces/Makefile| 6 ++
tools/testing/selftests/powerpc/mces/slb_multihit.sh | 9
on pseries machine running in hash
mmu mode.
Fixes: 116ac378bb3f ("powerpc/64s: machine check interrupt update NMI
accounting")
Signed-off-by: Ganesh Goudar
---
arch/powerpc/kernel/mce.c | 7 ++-
1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/arch/powerpc/kernel/mc
vert to use common
event code")
Signed-off-by: Ganesh Goudar
---
V2: Leave bare metal code and save_mce_event as is.
V3: Have separate functions for realmode and virtual mode handling.
V4: Fix build warning, rephrase commit message.
---
arch/powerpc/platforms/pse
] 79291f24 790af00e 78e70020 7d095214 <7c69502a> 2fa3 419e011c
70690040
[ 485.128152] ---[ end trace d34b27e29ae0e340 ]---
Signed-off-by: Ganesh Goudar
---
V2: Leave bare metal code and save_mce_event as is.
V3: Have separate functions for realmode and virtual mode handling.
---
arch/p
fatal as it may try to access
memory outside RMO region.
To fix this use addr_to_pfn after switching to virtual mode.
Signed-off-by: Ganesh Goudar
---
V2: Leave bare metal code and save_mce_event as is.
---
arch/powerpc/platforms/pseries/ras.c | 20 +++-
1 file changed, 11
fatal as it may try to access
memory outside RMO region.
To fix this move the use of addr_to_pfn to save_mce_event(), which
runs in virtual mode.
Signed-off-by: Ganesh Goudar
---
arch/powerpc/kernel/mce.c| 7 +
arch/powerpc/kernel/mce_power.c | 39
thereby
avoid poisoning the memory in host.
Reviewed-by: Mahesh Salgaonkar
Signed-off-by: Ganesh Goudar
---
arch/powerpc/kernel/mce_power.c | 10 +-
1 file changed, 9 insertions(+), 1 deletion(-)
diff --git a/arch/powerpc/kernel/mce_power.c b/arch/powerpc/kernel/mce_power.c
index
mce_handle_ierror() and mce_handle_derror() has some duplicate
code to recover from the recoverable MCE errors and to get the
MCE error sub-type while generating MCE error info, Add helper
functions to remove it.
Signed-off-by: Ganesh Goudar
---
arch/powerpc/kernel/mce_power.c | 136
From: Santosh S
Introduce notification chain which lets know about uncorrected memory
errors(UE). This would help prospective users in pmem or nvdimm subsystem
to track bad blocks for better handling of persistent memory allocations.
Signed-off-by: Santosh S
Signed-off-by: Ganesh Goudar
t for memcpy_mcsafe")
Reviewed-by: Mahesh Salgaonkar
Reviewed-by: Santosh S
Signed-off-by: Ganesh Goudar
---
V2: Fixes a trivial checkpatch error in commit msg.
V3: Use proper subject prefix.
V4: Rephrase the commit message.
Define a common function to update nip with fixup address.
eviewed-by: Santosh S
Signed-off-by: Ganesh Goudar
---
V2: Fixes a trivial checkpatch error in commit msg.
V3: Use proper subject prefix.
---
arch/powerpc/platforms/pseries/ras.c | 8
1 file changed, 8 insertions(+)
diff --git a/arch/powerpc/platforms/pseries/ras.c
b/arch/powerpc/platfor
eviewed-by: Santosh S
Signed-off-by: Ganesh Goudar
---
V2: Fixes a trivial checkpatch error in commit msg
---
arch/powerpc/platforms/pseries/ras.c | 8
1 file changed, 8 insertions(+)
diff --git a/arch/powerpc/platforms/pseries/ras.c
b/arch/powerpc/platforms/pseries/ras.c
index 5d
48 2f8b0063 380b0001
---[ end trace 46fd63f36bbdd940 ]---
Fixes: 9ca766f9891d ("powerpc/64s/pseries: machine check convert to use common
event code")
Reviewed-by: Mahesh Salgaonkar
Reviewed-by: Nicholas Piggin
Signed-off-by: Ganesh Goudar
---
v2: Avoid asm code to switch to virtual mo
If we hit UE at an instruction with a fixup entry, flag to
ignore the event and set nip to continue execution at the
fixup entry.
For powernv this changes are already made by commit
895e3dceeb97 ("powerpc/mce: Handle UE event for memcpy_mcsafe")
Signed-off-by: Ganesh Goudar
---
ar
48 2f8b0063 380b0001
---[ end trace 46fd63f36bbdd940 ]---
Fixes: 9ca766f9891d ("powerpc/64s/pseries: machine check convert to use common
event code")
Signed-off-by: Ganesh Goudar
---
arch/powerpc/kernel/exceptions-64s.S | 12
arch/powerpc/platforms/pseries/pseries.h
wed-by: Mahesh Salgaonkar
Reviewed-by: Nicholas Piggin
Signed-off-by: Ganesh Goudar
---
V2: Rephrasing the commit message
---
arch/powerpc/kernel/traps.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch/powerpc/kernel/traps.c b/arch/powerpc/kernel/traps.c
index 11caa0291254..82f43535e686
vram, call kmsg_dump()
before carrying out fadump or kdump.
Fixes: 4388c9b3a6ee ("powerpc: Do not send system reset request through the
oops path")
Reviewed-by: Mahesh Salgaonkar
Signed-off-by: Ganesh Goudar
---
arch/powerpc/kernel/traps.c | 1 +
1 file changed, 1 insertion(+)
diff
Add support to hwpoison the pages upon hitting machine check
exception.
This patch queues the address where UE is hit to percpu array
and schedules work to plumb it into memory poison infrastructure.
Reviewed-by: Mahesh Salgaonkar
Signed-off-by: Ganesh Goudar
---
arch/powerpc/include/asm
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