On Thu, Jun 18, 2020 at 10:48:21AM +1000, Michael Ellerman wrote:
> Nick Desaulniers writes:
> > On Wed, Jun 17, 2020 at 3:20 AM Michael Ellerman
> > wrote:
> >> Michael Ellerman writes:
> >> > Michal Simek writes:
> >>
> >>
> >> >> Or if bamboo requires uImage to be built by default you can
tree/branch: https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git
next-test
branch HEAD: 9d7d80a443b962d67db4fbd4b832081f4d7df4a8 powerpc/powernv/ioda:
Return correct error if TCE level allocation failed
elapsed time: 723m
configs tested: 5
configs skipped: 105
The following
rhel-kconfig
powerpc defconfig
powerpc allyesconfig
powerpc allmodconfig
powerpc allnoconfig
i386 randconfig-a015-20200617
i386 randconfig-a011-20200617
Hi all,
Today's linux-next merge of the pidfd tree got a conflict in:
arch/powerpc/kernel/syscalls/syscall.tbl
between commit:
35e32a6cb5f6 ("powerpc/syscalls: Split SPU-ness out of ABI")
from the powerpc-fixes tree and commit:
9b4feb630e8e ("arch: wire-up close_range()")
from the
From: Xiyu Yang
[ Upstream commit 36124fb19f1ae68a500cd76a76d40c6e81bee346 ]
fsl_asrc_dma_hw_params() invokes dma_request_channel() or
fsl_asrc_get_dma_channel(), which returns a reference of the specified
dma_chan object to "pair->dma_chan[dir]" with increased refcnt.
The reference counting
From: Nicholas Piggin
[ Upstream commit deb70f7a35a22dffa55b2c3aac71bc6fb0f486ce ]
This was discovered developing qemu fwnmi sreset support. This
off-by-one bug means the last 16 bytes of the rtas area can not
be used for a 16 byte save area.
It's not a serious bug, and QEMU implementation has
From: Geoff Levand
[ Upstream commit 126554465d93b10662742128918a5fc338cda4aa ]
The ps3_mm_region_destroy() and ps3_mm_vas_destroy() routines
are called very late in the shutdown via kexec's mmu_cleanup_all
routine. By the time mmu_cleanup_all runs it is too late to use
udbg_printf, and
From: Raghavendra Rao Ananta
[ Upstream commit e2bd1dcbe1aa34ff5570b3427c530e4332ecf0fe ]
Potentially, hvc_open() can be called in parallel when two tasks calls
open() on /dev/hvcX. In such a scenario, if the hp->ops->notifier_add()
callback in the function fails, where it sets the
From: Tyrel Datwyler
[ Upstream commit 4919b33b63c8b69d8dcf2b867431d0e3b6dc6d28 ]
The adapter info MAD is used to send the client info and receive the host
info as a response. A persistent buffer is used and as such the client info
is overwritten after the response. During the course of a
From: Pingfan Liu
[ Upstream commit be5470e0c285a68dc3afdea965032f5ddc8269d7 ]
'mem=" option is an easy way to put high pressure on memory during
some test. Hence after applying the memory limit, instead of total
mem, the actual usable memory should be considered when reserving mem
for
From: Kajol Jain
[ Upstream commit 373b373053384f12951ae9f916043d955501d482 ]
Function 'read_sys_info_pseries()' is added to get system parameter
values like number of sockets and chips per socket.
and it gets these details via rtas_call with token
"PROCESSOR_MODULE_INFO".
Incase lpar migrate
From: Emmanuel Nicolet
[ Upstream commit 720bc316690bd27dea9d71510b50f0cd698ffc32 ]
Since commit dcebd755926b ("block: use bio_for_each_bvec() to compute
multi-page bvec count"), the kernel will bug_on on the PS3 because
bio_split() is called with sectors == 0:
kernel BUG at
From: Xiyu Yang
[ Upstream commit 36124fb19f1ae68a500cd76a76d40c6e81bee346 ]
fsl_asrc_dma_hw_params() invokes dma_request_channel() or
fsl_asrc_get_dma_channel(), which returns a reference of the specified
dma_chan object to "pair->dma_chan[dir]" with increased refcnt.
The reference counting
From: Qian Cai
[ Upstream commit c2e929b18cea6cbf71364f22d742d9aad7f4677a ]
Booting a power9 server with hash MMU could trigger an undefined
behaviour because pud_offset(p4d, 0) will do,
0 >> (PAGE_SHIFT:16 + PTE_INDEX_SIZE:8 + H_PMD_INDEX_SIZE:10)
Fix it by converting pud_index() and friends
From: Geoff Levand
[ Upstream commit 126554465d93b10662742128918a5fc338cda4aa ]
The ps3_mm_region_destroy() and ps3_mm_vas_destroy() routines
are called very late in the shutdown via kexec's mmu_cleanup_all
routine. By the time mmu_cleanup_all runs it is too late to use
udbg_printf, and
From: Nicholas Piggin
[ Upstream commit deb70f7a35a22dffa55b2c3aac71bc6fb0f486ce ]
This was discovered developing qemu fwnmi sreset support. This
off-by-one bug means the last 16 bytes of the rtas area can not
be used for a 16 byte save area.
It's not a serious bug, and QEMU implementation has
From: Raghavendra Rao Ananta
[ Upstream commit e2bd1dcbe1aa34ff5570b3427c530e4332ecf0fe ]
Potentially, hvc_open() can be called in parallel when two tasks calls
open() on /dev/hvcX. In such a scenario, if the hp->ops->notifier_add()
callback in the function fails, where it sets the
From: Tyrel Datwyler
[ Upstream commit 4919b33b63c8b69d8dcf2b867431d0e3b6dc6d28 ]
The adapter info MAD is used to send the client info and receive the host
info as a response. A persistent buffer is used and as such the client info
is overwritten after the response. During the course of a
From: Pingfan Liu
[ Upstream commit be5470e0c285a68dc3afdea965032f5ddc8269d7 ]
'mem=" option is an easy way to put high pressure on memory during
some test. Hence after applying the memory limit, instead of total
mem, the actual usable memory should be considered when reserving mem
for
From: Kajol Jain
[ Upstream commit b4ac18eead28611ff470d0f47a35c4e0ac080d9c ]
Commit 2b206ee6b0df ("powerpc/perf/hv-24x7: Display change in counter
values")' added to print _change_ in the counter value rather then raw
value for 24x7 counters. Incase of transactions, the event count
is set to 0
From: Emmanuel Nicolet
[ Upstream commit 720bc316690bd27dea9d71510b50f0cd698ffc32 ]
Since commit dcebd755926b ("block: use bio_for_each_bvec() to compute
multi-page bvec count"), the kernel will bug_on on the PS3 because
bio_split() is called with sectors == 0:
kernel BUG at
From: Xiyu Yang
[ Upstream commit 36124fb19f1ae68a500cd76a76d40c6e81bee346 ]
fsl_asrc_dma_hw_params() invokes dma_request_channel() or
fsl_asrc_get_dma_channel(), which returns a reference of the specified
dma_chan object to "pair->dma_chan[dir]" with increased refcnt.
The reference counting
From: huhai
[ Upstream commit bcec081ecc940fc38730b29c743bbee661164161 ]
Signed-off-by: huhai
Signed-off-by: Michael Ellerman
Link: https://lore.kernel.org/r/20200521072648.1254699-1-...@ellerman.id.au
Signed-off-by: Sasha Levin
---
arch/powerpc/platforms/4xx/pci.c | 4 +---
1 file changed,
From: Qian Cai
[ Upstream commit c2e929b18cea6cbf71364f22d742d9aad7f4677a ]
Booting a power9 server with hash MMU could trigger an undefined
behaviour because pud_offset(p4d, 0) will do,
0 >> (PAGE_SHIFT:16 + PTE_INDEX_SIZE:8 + H_PMD_INDEX_SIZE:10)
Fix it by converting pud_index() and friends
From: Nicholas Piggin
[ Upstream commit deb70f7a35a22dffa55b2c3aac71bc6fb0f486ce ]
This was discovered developing qemu fwnmi sreset support. This
off-by-one bug means the last 16 bytes of the rtas area can not
be used for a 16 byte save area.
It's not a serious bug, and QEMU implementation has
From: Geoff Levand
[ Upstream commit 126554465d93b10662742128918a5fc338cda4aa ]
The ps3_mm_region_destroy() and ps3_mm_vas_destroy() routines
are called very late in the shutdown via kexec's mmu_cleanup_all
routine. By the time mmu_cleanup_all runs it is too late to use
udbg_printf, and
From: Raghavendra Rao Ananta
[ Upstream commit e2bd1dcbe1aa34ff5570b3427c530e4332ecf0fe ]
Potentially, hvc_open() can be called in parallel when two tasks calls
open() on /dev/hvcX. In such a scenario, if the hp->ops->notifier_add()
callback in the function fails, where it sets the
From: Tyrel Datwyler
[ Upstream commit 4919b33b63c8b69d8dcf2b867431d0e3b6dc6d28 ]
The adapter info MAD is used to send the client info and receive the host
info as a response. A persistent buffer is used and as such the client info
is overwritten after the response. During the course of a
From: Pingfan Liu
[ Upstream commit be5470e0c285a68dc3afdea965032f5ddc8269d7 ]
'mem=" option is an easy way to put high pressure on memory during
some test. Hence after applying the memory limit, instead of total
mem, the actual usable memory should be considered when reserving mem
for
From: Kajol Jain
[ Upstream commit b4ac18eead28611ff470d0f47a35c4e0ac080d9c ]
Commit 2b206ee6b0df ("powerpc/perf/hv-24x7: Display change in counter
values")' added to print _change_ in the counter value rather then raw
value for 24x7 counters. Incase of transactions, the event count
is set to 0
From: Emmanuel Nicolet
[ Upstream commit 720bc316690bd27dea9d71510b50f0cd698ffc32 ]
Since commit dcebd755926b ("block: use bio_for_each_bvec() to compute
multi-page bvec count"), the kernel will bug_on on the PS3 because
bio_split() is called with sectors == 0:
kernel BUG at
From: Xiyu Yang
[ Upstream commit 36124fb19f1ae68a500cd76a76d40c6e81bee346 ]
fsl_asrc_dma_hw_params() invokes dma_request_channel() or
fsl_asrc_get_dma_channel(), which returns a reference of the specified
dma_chan object to "pair->dma_chan[dir]" with increased refcnt.
The reference counting
From: huhai
[ Upstream commit bcec081ecc940fc38730b29c743bbee661164161 ]
Signed-off-by: huhai
Signed-off-by: Michael Ellerman
Link: https://lore.kernel.org/r/20200521072648.1254699-1-...@ellerman.id.au
Signed-off-by: Sasha Levin
---
arch/powerpc/platforms/4xx/pci.c | 4 +---
1 file changed,
From: Qian Cai
[ Upstream commit 0aca8a5575544bd21b3363058afb8f1e81505150 ]
kvmppc_pmd_alloc() and kvmppc_pte_alloc() allocate some memory but then
pud_populate() and pmd_populate() will use __pa() to reference the newly
allocated memory.
Since kmemleak is unable to track the physical memory
From: Qian Cai
[ Upstream commit c2e929b18cea6cbf71364f22d742d9aad7f4677a ]
Booting a power9 server with hash MMU could trigger an undefined
behaviour because pud_offset(p4d, 0) will do,
0 >> (PAGE_SHIFT:16 + PTE_INDEX_SIZE:8 + H_PMD_INDEX_SIZE:10)
Fix it by converting pud_index() and friends
From: Geoff Levand
[ Upstream commit 126554465d93b10662742128918a5fc338cda4aa ]
The ps3_mm_region_destroy() and ps3_mm_vas_destroy() routines
are called very late in the shutdown via kexec's mmu_cleanup_all
routine. By the time mmu_cleanup_all runs it is too late to use
udbg_printf, and
From: Nicholas Piggin
[ Upstream commit deb70f7a35a22dffa55b2c3aac71bc6fb0f486ce ]
This was discovered developing qemu fwnmi sreset support. This
off-by-one bug means the last 16 bytes of the rtas area can not
be used for a 16 byte save area.
It's not a serious bug, and QEMU implementation has
From: Michael Ellerman
[ Upstream commit 7ffa8b7dc11752827329e4e84a574ea6aaf24716 ]
Aneesh increased the size of struct pt_regs by 16 bytes and started
seeing this WARN_ON:
smp: Bringing up secondary CPUs ...
[ cut here ]
WARNING: CPU: 0 PID: 0 at
From: Raghavendra Rao Ananta
[ Upstream commit e2bd1dcbe1aa34ff5570b3427c530e4332ecf0fe ]
Potentially, hvc_open() can be called in parallel when two tasks calls
open() on /dev/hvcX. In such a scenario, if the hp->ops->notifier_add()
callback in the function fails, where it sets the
From: Tyrel Datwyler
[ Upstream commit 4919b33b63c8b69d8dcf2b867431d0e3b6dc6d28 ]
The adapter info MAD is used to send the client info and receive the host
info as a response. A persistent buffer is used and as such the client info
is overwritten after the response. During the course of a
From: Pingfan Liu
[ Upstream commit be5470e0c285a68dc3afdea965032f5ddc8269d7 ]
'mem=" option is an easy way to put high pressure on memory during
some test. Hence after applying the memory limit, instead of total
mem, the actual usable memory should be considered when reserving mem
for
From: Kajol Jain
[ Upstream commit b4ac18eead28611ff470d0f47a35c4e0ac080d9c ]
Commit 2b206ee6b0df ("powerpc/perf/hv-24x7: Display change in counter
values")' added to print _change_ in the counter value rather then raw
value for 24x7 counters. Incase of transactions, the event count
is set to 0
From: Emmanuel Nicolet
[ Upstream commit 720bc316690bd27dea9d71510b50f0cd698ffc32 ]
Since commit dcebd755926b ("block: use bio_for_each_bvec() to compute
multi-page bvec count"), the kernel will bug_on on the PS3 because
bio_split() is called with sectors == 0:
kernel BUG at
From: Xiyu Yang
[ Upstream commit 36124fb19f1ae68a500cd76a76d40c6e81bee346 ]
fsl_asrc_dma_hw_params() invokes dma_request_channel() or
fsl_asrc_get_dma_channel(), which returns a reference of the specified
dma_chan object to "pair->dma_chan[dir]" with increased refcnt.
The reference counting
From: huhai
[ Upstream commit bcec081ecc940fc38730b29c743bbee661164161 ]
Signed-off-by: huhai
Signed-off-by: Michael Ellerman
Link: https://lore.kernel.org/r/20200521072648.1254699-1-...@ellerman.id.au
Signed-off-by: Sasha Levin
---
arch/powerpc/platforms/4xx/pci.c | 4 +---
1 file changed,
From: Qian Cai
[ Upstream commit ab8b65be183180c3eef405d449163964ecc4b571 ]
It is unsafe to traverse kvm->arch.spapr_tce_tables and
stt->iommu_tables without the RCU read lock held. Also, add
cond_resched_rcu() in places with the RCU read lock held that could take
a while to finish.
From: Qian Cai
[ Upstream commit 0aca8a5575544bd21b3363058afb8f1e81505150 ]
kvmppc_pmd_alloc() and kvmppc_pte_alloc() allocate some memory but then
pud_populate() and pmd_populate() will use __pa() to reference the newly
allocated memory.
Since kmemleak is unable to track the physical memory
From: Christophe Leroy
[ Upstream commit 4b19f96a81bceaf0bcf44d79c0855c61158065ec ]
Mapping RO data as ROX is not an issue since that data
cannot be modified to introduce an exploit.
PPC64 accepts to have RO data mapped ROX, as a trade off
between kernel size and strictness of protection.
On
From: Qian Cai
[ Upstream commit c2e929b18cea6cbf71364f22d742d9aad7f4677a ]
Booting a power9 server with hash MMU could trigger an undefined
behaviour because pud_offset(p4d, 0) will do,
0 >> (PAGE_SHIFT:16 + PTE_INDEX_SIZE:8 + H_PMD_INDEX_SIZE:10)
Fix it by converting pud_index() and friends
From: Geoff Levand
[ Upstream commit 126554465d93b10662742128918a5fc338cda4aa ]
The ps3_mm_region_destroy() and ps3_mm_vas_destroy() routines
are called very late in the shutdown via kexec's mmu_cleanup_all
routine. By the time mmu_cleanup_all runs it is too late to use
udbg_printf, and
From: Nicholas Piggin
[ Upstream commit deb70f7a35a22dffa55b2c3aac71bc6fb0f486ce ]
This was discovered developing qemu fwnmi sreset support. This
off-by-one bug means the last 16 bytes of the rtas area can not
be used for a 16 byte save area.
It's not a serious bug, and QEMU implementation has
From: Nicholas Piggin
[ Upstream commit 8a5054d8cbbe03c68dcb0957c291c942132e4101 ]
The architecture allows for machine check exceptions to cause idle
wakeups which resume at the 0x200 address which has to return via
the idle wakeup code, but the early machine check handler is run
first.
The
From: Michael Ellerman
[ Upstream commit 7ffa8b7dc11752827329e4e84a574ea6aaf24716 ]
Aneesh increased the size of struct pt_regs by 16 bytes and started
seeing this WARN_ON:
smp: Bringing up secondary CPUs ...
[ cut here ]
WARNING: CPU: 0 PID: 0 at
Hi Joerg,
Sorry for the late reply.
On Tue, 9 Jun 2020 14:05:33 +0200 Joerg Roedel wrote:
>
> diff --git a/include/linux/pgalloc-track.h b/include/linux/pgalloc-track.h
> new file mode 100644
> index ..1dcc865029a2
> --- /dev/null
> +++ b/include/linux/pgalloc-track.h
> @@ -0,0
From: Raghavendra Rao Ananta
[ Upstream commit e2bd1dcbe1aa34ff5570b3427c530e4332ecf0fe ]
Potentially, hvc_open() can be called in parallel when two tasks calls
open() on /dev/hvcX. In such a scenario, if the hp->ops->notifier_add()
callback in the function fails, where it sets the
From: Tyrel Datwyler
[ Upstream commit 4919b33b63c8b69d8dcf2b867431d0e3b6dc6d28 ]
The adapter info MAD is used to send the client info and receive the host
info as a response. A persistent buffer is used and as such the client info
is overwritten after the response. During the course of a
From: Pingfan Liu
[ Upstream commit be5470e0c285a68dc3afdea965032f5ddc8269d7 ]
'mem=" option is an easy way to put high pressure on memory during
some test. Hence after applying the memory limit, instead of total
mem, the actual usable memory should be considered when reserving mem
for
From: Kajol Jain
[ Upstream commit b4ac18eead28611ff470d0f47a35c4e0ac080d9c ]
Commit 2b206ee6b0df ("powerpc/perf/hv-24x7: Display change in counter
values")' added to print _change_ in the counter value rather then raw
value for 24x7 counters. Incase of transactions, the event count
is set to 0
From: Christophe Leroy
[ Upstream commit 3af4786eb429b2df76cbd7ce3bae21467ac3e4fb ]
For platforms using shared.c (4xx, Book3e, Book3s/32), also handle the
_PAGE_COHERENT flag which corresponds to the M bit of the WIMG flags.
Signed-off-by: Christophe Leroy
[mpe: Make it more verbose, use
From: Emmanuel Nicolet
[ Upstream commit 720bc316690bd27dea9d71510b50f0cd698ffc32 ]
Since commit dcebd755926b ("block: use bio_for_each_bvec() to compute
multi-page bvec count"), the kernel will bug_on on the PS3 because
bio_split() is called with sectors == 0:
kernel BUG at
From: Christophe Leroy
[ Upstream commit edbadaf0671072298e506074128b64e003c5812c ]
When CONFIG_KASAN is selected, the stack usage is increased.
In the same way as x86 and arm64 architectures, increase
THREAD_SHIFT when CONFIG_KASAN is selected.
Fixes: 2edb16efc899 ("powerpc/32: Add KASAN
From: Shengjiu Wang
[ Upstream commit 1fecbb71fe0e46b886f84e3b6decca6643c3af6d ]
Disable exception interrupt before scheduling tasklet, otherwise if
the tasklet isn't handled immediately, there will be endless xrun
interrupt.
Fixes: 7ccafa2b3879 ("ASoC: fsl_esai: recover the channel swap after
There are many instances where vmemap allocation is often switched between
regular memory and device memory just based on whether altmap is available
or not. vmemmap_alloc_block_buf() is used in various platforms to allocate
vmemmap mappings. Lets also enable it to handle altmap based device
This series enables vmemmap backing memory allocation from device memory
ranges on arm64. But before that, it enables vmemmap_populate_basepages()
and vmemmap_alloc_block_buf() to accommodate struct vmem_altmap based
alocation requests.
This series applies on 5.8-rc1.
Pending Question:
From: Xiyu Yang
[ Upstream commit 36124fb19f1ae68a500cd76a76d40c6e81bee346 ]
fsl_asrc_dma_hw_params() invokes dma_request_channel() or
fsl_asrc_get_dma_channel(), which returns a reference of the specified
dma_chan object to "pair->dma_chan[dir]" with increased refcnt.
The reference counting
From: Nicholas Piggin
[ Upstream commit cb2b53cbffe3c388cd676b63f34e54ceb2643ae2 ]
Writing the AMR register is documented to require context
synchronizing operations before and after, for it to take effect as
expected. The KUAP restore at interrupt exit time deliberately avoids
the isync after
From: huhai
[ Upstream commit bcec081ecc940fc38730b29c743bbee661164161 ]
Signed-off-by: huhai
Signed-off-by: Michael Ellerman
Link: https://lore.kernel.org/r/20200521072648.1254699-1-...@ellerman.id.au
Signed-off-by: Sasha Levin
---
arch/powerpc/platforms/4xx/pci.c | 4 +---
1 file changed,
From: Laurent Dufour
[ Upstream commit e3326ae3d59e443a379367c6936941d6ab55d316 ]
The commit 8c47b6ff29e3 ("KVM: PPC: Book3S HV: Check caller of H_SVM_*
Hcalls") added checks of secure bit of SRR1 to filter out the Hcall
reserved to the Ultravisor.
However, the Hcall H_SVM_INIT_ABORT is made
From: Qian Cai
[ Upstream commit ab8b65be183180c3eef405d449163964ecc4b571 ]
It is unsafe to traverse kvm->arch.spapr_tce_tables and
stt->iommu_tables without the RCU read lock held. Also, add
cond_resched_rcu() in places with the RCU read lock held that could take
a while to finish.
From: Qian Cai
[ Upstream commit 0aca8a5575544bd21b3363058afb8f1e81505150 ]
kvmppc_pmd_alloc() and kvmppc_pte_alloc() allocate some memory but then
pud_populate() and pmd_populate() will use __pa() to reference the newly
allocated memory.
Since kmemleak is unable to track the physical memory
From: Christophe Leroy
[ Upstream commit d3efcd38c0b99162d889e36a30425345a18edb33 ]
CONFIG_8xx_COPYBACK was there to help disabling copyback cache mode
for debuging hardware. But nobody will design new boards with 8xx now.
All 8xx platforms select it, so make it the default and remove
the
From: Christophe Leroy
[ Upstream commit 4b19f96a81bceaf0bcf44d79c0855c61158065ec ]
Mapping RO data as ROX is not an issue since that data
cannot be modified to introduce an exploit.
PPC64 accepts to have RO data mapped ROX, as a trade off
between kernel size and strictness of protection.
On
From: Christophe Leroy
[ Upstream commit d132443a73d7a131775df46f33000f67ed92de1e ]
In case (k_start & PAGE_MASK) doesn't equal (kstart), 'va' will never be
NULL allthough 'block' is NULL
Check the return of memblock_alloc() directly instead of
the resulting address in the loop.
Fixes:
From: Qian Cai
[ Upstream commit c2e929b18cea6cbf71364f22d742d9aad7f4677a ]
Booting a power9 server with hash MMU could trigger an undefined
behaviour because pud_offset(p4d, 0) will do,
0 >> (PAGE_SHIFT:16 + PTE_INDEX_SIZE:8 + H_PMD_INDEX_SIZE:10)
Fix it by converting pud_index() and friends
From: Chen Zhou
[ Upstream commit ceffa63acce7165c442395b7d64a11ab8b5c5dca ]
Fixes coccicheck warning:
./arch/powerpc/platforms/powernv/opal.c:813:1-5:
alloc with no test, possible model on line 814
Add NULL check after kzalloc.
Signed-off-by: Chen Zhou
Signed-off-by: Michael
From: Geoff Levand
[ Upstream commit 126554465d93b10662742128918a5fc338cda4aa ]
The ps3_mm_region_destroy() and ps3_mm_vas_destroy() routines
are called very late in the shutdown via kexec's mmu_cleanup_all
routine. By the time mmu_cleanup_all runs it is too late to use
udbg_printf, and
From: Nicholas Piggin
[ Upstream commit deb70f7a35a22dffa55b2c3aac71bc6fb0f486ce ]
This was discovered developing qemu fwnmi sreset support. This
off-by-one bug means the last 16 bytes of the rtas area can not
be used for a 16 byte save area.
It's not a serious bug, and QEMU implementation has
From: Nicholas Piggin
[ Upstream commit f0fd9dd3c213c947dfb5bc2cad3ef5e30d3258ec ]
pseries fwnmi machine check code pops the soft-irq checks in rtas_call
(after the next patch to remove rtas_token from this call path).
Rather than play whack a mole with these and forever having fragile
code, it
From: Nicholas Piggin
[ Upstream commit 8a5054d8cbbe03c68dcb0957c291c942132e4101 ]
The architecture allows for machine check exceptions to cause idle
wakeups which resume at the 0x200 address which has to return via
the idle wakeup code, but the early machine check handler is run
first.
The
From: Michael Ellerman
[ Upstream commit 7ffa8b7dc11752827329e4e84a574ea6aaf24716 ]
Aneesh increased the size of struct pt_regs by 16 bytes and started
seeing this WARN_ON:
smp: Bringing up secondary CPUs ...
[ cut here ]
WARNING: CPU: 0 PID: 0 at
On Tue, 9 Jun 2020 14:05:33 +0200 Joerg Roedel wrote:
> From: Joerg Roedel
>
> The functions are only used in two source files, so there is no need
> for them to be in the global header. Move them to the new
> header and include it only where needed.
>
> ...
>
> new file mode 100644
>
From: Raghavendra Rao Ananta
[ Upstream commit e2bd1dcbe1aa34ff5570b3427c530e4332ecf0fe ]
Potentially, hvc_open() can be called in parallel when two tasks calls
open() on /dev/hvcX. In such a scenario, if the hp->ops->notifier_add()
callback in the function fails, where it sets the
From: Thomas Falcon
[ Upstream commit 6954a9e4192b86d778fb52b525fd7b62d51b1147 ]
Ensure that all scheduled work items have completed before continuing
with device removal and after further event scheduling has been
halted. This patch fixes a bug where a scheduled driver reset event
is processed
From: Tyrel Datwyler
[ Upstream commit 4919b33b63c8b69d8dcf2b867431d0e3b6dc6d28 ]
The adapter info MAD is used to send the client info and receive the host
info as a response. A persistent buffer is used and as such the client info
is overwritten after the response. During the course of a
From: Pingfan Liu
[ Upstream commit be5470e0c285a68dc3afdea965032f5ddc8269d7 ]
'mem=" option is an easy way to put high pressure on memory during
some test. Hence after applying the memory limit, instead of total
mem, the actual usable memory should be considered when reserving mem
for
From: Kajol Jain
[ Upstream commit b4ac18eead28611ff470d0f47a35c4e0ac080d9c ]
Commit 2b206ee6b0df ("powerpc/perf/hv-24x7: Display change in counter
values")' added to print _change_ in the counter value rather then raw
value for 24x7 counters. Incase of transactions, the event count
is set to 0
From: Christophe Leroy
[ Upstream commit 3af4786eb429b2df76cbd7ce3bae21467ac3e4fb ]
For platforms using shared.c (4xx, Book3e, Book3s/32), also handle the
_PAGE_COHERENT flag which corresponds to the M bit of the WIMG flags.
Signed-off-by: Christophe Leroy
[mpe: Make it more verbose, use
From: "Aneesh Kumar K.V"
[ Upstream commit 8f53f9c0f68ab2168f637494b9e24034899c1310 ]
With a 64K page size flush with start and end:
(start, end) = (721f680d, 721f680e)
results in:
(hstart, hend) = (721f6820, 721f6800)
ie. hstart is above hend, which indicates no huge
From: Emmanuel Nicolet
[ Upstream commit 720bc316690bd27dea9d71510b50f0cd698ffc32 ]
Since commit dcebd755926b ("block: use bio_for_each_bvec() to compute
multi-page bvec count"), the kernel will bug_on on the PS3 because
bio_split() is called with sectors == 0:
kernel BUG at
From: Christophe Leroy
[ Upstream commit edbadaf0671072298e506074128b64e003c5812c ]
When CONFIG_KASAN is selected, the stack usage is increased.
In the same way as x86 and arm64 architectures, increase
THREAD_SHIFT when CONFIG_KASAN is selected.
Fixes: 2edb16efc899 ("powerpc/32: Add KASAN
From: Shengjiu Wang
[ Upstream commit 1fecbb71fe0e46b886f84e3b6decca6643c3af6d ]
Disable exception interrupt before scheduling tasklet, otherwise if
the tasklet isn't handled immediately, there will be endless xrun
interrupt.
Fixes: 7ccafa2b3879 ("ASoC: fsl_esai: recover the channel swap after
Christophe Leroy writes:
> Le 17/06/2020 à 16:38, Peter Zijlstra a écrit :
>> On Thu, Jun 18, 2020 at 12:21:22AM +1000, Michael Ellerman wrote:
>>> Peter Zijlstra writes:
On Mon, Jun 15, 2020 at 12:57:59PM +, Christophe Leroy wrote:
>>
> +#if defined(CONFIG_PPC_8xx) &&
Peter Zijlstra writes:
> On Thu, Jun 18, 2020 at 12:21:22AM +1000, Michael Ellerman wrote:
>> Peter Zijlstra writes:
>> > On Mon, Jun 15, 2020 at 12:57:59PM +, Christophe Leroy wrote:
>
>> >> +#if defined(CONFIG_PPC_8xx) && defined(CONFIG_PPC_16K_PAGES)
>> >> +#define __HAVE_ARCH_PTEP_GET
>>
Nick Desaulniers writes:
> On Wed, Jun 17, 2020 at 3:20 AM Michael Ellerman wrote:
>> Michael Ellerman writes:
>> > Michal Simek writes:
>>
>>
>> >> Or if bamboo requires uImage to be built by default you can do it via
>> >> Kconfig.
>> >>
>> >> diff --git a/arch/powerpc/platforms/44x/Kconfig
On Tue, 16 Jun 2020, Martin K. Petersen wrote:
>
> However, keeping code around is not free.
Right. And removing code isn't free either, if it forces people to find
workarounds.
> Core interfaces change frequently. Nobody enjoys having to tweak host
> templates for 50 devices they have
On 6/16/20 9:53 PM, Joe Perches wrote:
> On Mon, 2020-06-15 at 21:57 -0400, Waiman Long wrote:
>> v4:
>> - Break out the memzero_explicit() change as suggested by Dan Carpenter
>> so that it can be backported to stable.
>> - Drop the "crypto: Remove unnecessary memzero_explicit()"
On Thu, 2020-06-18 at 00:31 +0300, Denis Efremov wrote:
>
> On 6/16/20 9:53 PM, Joe Perches wrote:
> > On Mon, 2020-06-15 at 21:57 -0400, Waiman Long wrote:
> > > v4:
> > > - Break out the memzero_explicit() change as suggested by Dan Carpenter
> > > so that it can be backported to stable.
On Sun, Jun 07, 2020 at 04:33:23PM -0700, Prakhar Srivastava wrote:
> Add Documentation regarding the ima-kexec-buffer node in
> the chosen node documentation
Run 'git log --oneline Documentation/devicetree/bindings/chosen.txt' and
write $subject using the dominate format used.
For the commit
Hello,
When a passthrough IO adapter is removed from a pseries machine using
hash MMU and the XIVE interrupt mode, the POWER hypervisor expects the
guest OS to clear all page table entries related to the adapter. If
some are still present, the RTAS call which isolates the PCI slot
returns error
Some PCI adapters, like GPUs, use the "interrupt-map" property to
describe interrupt mappings other than the legacy INTx interrupts.
There can be more than 4 mappings.
To clear all interrupts when a PHB is removed, we need to increase the
'irq_map' array in which mappings are recorded. Compute
1 - 100 of 131 matches
Mail list logo
