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Hi Linus,
Please pull some more powerpc fixes for 5.3:
The following changes since commit 609488bc979f99f805f34e9a32c1e3b71179d10b:
Linux 5.3-rc2 (2019-07-28 12:47:02 -0700)
are available in the git repository at:
https://git.kernel.org/pub/
On Sun, Aug 4, 2019 at 4:49 AM Michael Ellerman wrote:
>
> Please pull some more powerpc fixes for 5.3:
Hmm. This was caught by the gmail spam-filter for some reason. I don't
see anything particularly different from your normal pull requests, so
don't ask me why.
The fact that you have no email
The pull request you sent on Sun, 04 Aug 2019 21:49:44 +1000:
> https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git
> tags/powerpc-5.3-3
has been merged into torvalds/linux.git:
https://git.kernel.org/torvalds/c/4b6f23161b4e888e72671e377c32eabe9a8e62fc
Thank you!
--
Deet-doot-do
On Fri, 2019-08-02 at 07:18 +0200, Christophe Leroy wrote:
>
> Le 02/08/2019 à 07:02, Chris Packham a écrit :
> >
> > Since commit cbe46bd4f510 ("powerpc: remove CONFIG_CMDLINE #ifdef
> > mess")
> > CONFIG_CMDLINE has always had a value regardless of
> > CONNIG_CMDLINE_BOOL.
> s/CONNIG/CONFIG/
>
https://bugzilla.kernel.org/show_bug.cgi?id=204479
Erhard F. (erhar...@mailbox.org) changed:
What|Removed |Added
CC||linuxppc-dev@lists.ozla
https://bugzilla.kernel.org/show_bug.cgi?id=204375
--- Comment #14 from Erhard F. (erhar...@mailbox.org) ---
With radeon.ko module removed the G4 DP continues and finishes booting with
KASAN. So this one seems fixed. Thanks!
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Hi All,
I have a custom board that uses the Freescale/NXP T2080 SoC.
The board boots fine using v4.19.60 but when I use v5.1.21 it locks up
waiting for the other CPUs to come online (earlyprintk output below).
If I set maxcpus=0 then the system boots all the way through to
userland. The same thin
Add the PCIe compatible string for LS1028A
Signed-off-by: Xiaowei Bao
---
v2:
- no change.
Documentation/devicetree/bindings/pci/layerscape-pci.txt | 1 +
1 file changed, 1 insertion(+)
diff --git a/Documentation/devicetree/bindings/pci/layerscape-pci.txt
b/Documentation/devicetree/bindings/
Add support for the LS1028a PCIe controller.
Signed-off-by: Xiaowei Bao
---
v2:
- no change.
drivers/pci/controller/dwc/pci-layerscape.c | 9 +
1 file changed, 9 insertions(+)
diff --git a/drivers/pci/controller/dwc/pci-layerscape.c
b/drivers/pci/controller/dwc/pci-layerscape.c
index
LS1028a implements 2 PCIe 3.0 controllers.
Signed-off-by: Xiaowei Bao
---
v2:
- Fix up the legacy INTx allocate failed issue.
arch/arm64/boot/dts/freescale/fsl-ls1028a.dtsi | 52 ++
1 file changed, 52 insertions(+)
diff --git a/arch/arm64/boot/dts/freescale/fsl-ls1028a
From: John Hubbard
For pages that were retained via get_user_pages*(), release those pages
via the new put_user_page*() routines, instead of via put_page() or
release_pages().
This is part a tree-wide conversion, as described in commit fc1d8e7cca2d
("mm: introduce put_user_page*(), placeholder v
Hi Diana,
On 2019/8/2 16:41, Diana Madalina Craciun wrote:
diff --git a/arch/powerpc/kernel/fsl_booke_entry_mapping.S
b/arch/powerpc/kernel/fsl_booke_entry_mapping.S
index de0980945510..6d2967673ac7 100644
--- a/arch/powerpc/kernel/fsl_booke_entry_mapping.S
+++ b/arch/powerpc/kernel/fsl_booke_e
During a memcpy from a pmem device, if a machine check exception is
generated we end up in a panic. In case of fsdax read, this should
only result in a -EIO. Avoid MCE by implementing memcpy_mcsafe.
Before this patch series:
```
bash-4.4# mount -o dax /dev/pmem0 /mnt/pmem/
[ 7621.714094] Disablin
schedule_work() cannot be called from MCE exception context as MCE can
interrupt even in interrupt disabled context.
fixes: 733e4a4c ("powerpc/mce: hookup memory_failure for UE errors")
Signed-off-by: Santosh Sivaraj
---
arch/powerpc/kernel/mce.c | 8 +---
1 file changed, 5 insertions(+), 3
From: Reza Arbab
The function doesn't get used outside this file, so make it static.
Signed-off-by: Reza Arbab
Signed-off-by: Santosh Sivaraj
Reviewed-by: Nicholas Piggin
---
arch/powerpc/kernel/mce.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/powerpc/kernel
From: Balbir Singh
The current code would fail on huge pages addresses, since the shift would be
incorrect. Use the correct page shift value returned by __find_linux_pte() to
get the correct physical address. The code is more generic and can handle both
regular and compound pages.
Fixes: ba41e1e
Certain architecture specific operating modes (e.g., in powerpc machine
check handler that is unable to access vmalloc memory), the
search_exception_tables cannot be called because it also searches the module
exception tables if entry is not found in the kernel exception table.
Cc: Thomas Gleixner
From: Balbir Singh
The pmem infrastructure uses memcpy_mcsafe in the pmem layer so as to
convert machine check exceptions into a return value on failure in case
a machine check exception is encountered during the memcpy. The return
value is the number of bytes remaining to be copied.
This patch
If we take a UE on one of the instructions with a fixup entry, set nip
to continue execution at the fixup entry. Stop processing the event
further or print it.
Based-on-patch-by: Reza Arbab
Cc: Reza Arbab
Cc: Mahesh Salgaonkar
Signed-off-by: Santosh Sivaraj
---
arch/powerpc/include/asm/mce.h
Use memcpy_mcsafe() implementation to define copy_to_user_mcsafe()
Signed-off-by: Santosh Sivaraj
---
arch/powerpc/Kconfig | 1 +
arch/powerpc/include/asm/uaccess.h | 14 ++
2 files changed, 15 insertions(+)
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
in
These two variables are both defined in init_32.c and init_64.c. Move
them to init-common.c.
Signed-off-by: Jason Yan
Cc: Diana Craciun
Cc: Michael Ellerman
Cc: Christophe Leroy
Cc: Benjamin Herrenschmidt
Cc: Paul Mackerras
Cc: Nicholas Piggin
Cc: Kees Cook
Reviewed-by: Christophe Leroy
R
This series implements KASLR for powerpc/fsl_booke/32, as a security
feature that deters exploit attempts relying on knowledge of the location
of kernel internals.
Since CONFIG_RELOCATABLE has already supported, what we need to do is
map or copy kernel to a proper place and relocate. Freescale Boo
Add a new helper reloc_kernel_entry() to jump back to the start of the
new kernel. After we put the new kernel in a randomized place we can use
this new helper to enter the kernel and begin to relocate again.
Signed-off-by: Jason Yan
Cc: Diana Craciun
Cc: Michael Ellerman
Cc: Christophe Leroy
Add a new helper create_tlb_entry() to create a tlb entry by the virtual
and physical address. This is a preparation to support boot kernel at a
randomized address.
Signed-off-by: Jason Yan
Cc: Diana Craciun
Cc: Michael Ellerman
Cc: Christophe Leroy
Cc: Benjamin Herrenschmidt
Cc: Paul Mackerr
When kaslr is enabled, the kernel offset is different for every boot.
This brings some difficult to debug the kernel. Dump out the kernel
offset when panic so that we can easily debug the kernel.
Signed-off-by: Jason Yan
Cc: Diana Craciun
Cc: Michael Ellerman
Cc: Christophe Leroy
Cc: Benjamin
After we have the basic support of relocate the kernel in some
appropriate place, we can start to randomize the offset now.
Entropy is derived from the banner and timer, which will change every
build and boot. This not so much safe so additionally the bootloader may
pass entropy via the /chosen/ka
This patch add support to boot kernel from places other than KERNELBASE.
Since CONFIG_RELOCATABLE has already supported, what we need to do is
map or copy kernel to a proper place and relocate. Freescale Book-E
parts expect lowmem to be mapped by fixed TLB entries(TLB1). The TLB1
entries are not su
The original kernel still exists in the memory, clear it now.
Signed-off-by: Jason Yan
Cc: Diana Craciun
Cc: Michael Ellerman
Cc: Christophe Leroy
Cc: Benjamin Herrenschmidt
Cc: Paul Mackerras
Cc: Nicholas Piggin
Cc: Kees Cook
Reviewed-by: Christophe Leroy
Reviewed-by: Diana Craciun
Test
Now the kernel base is a fixed value - KERNELBASE. To support KASLR, we
need a variable to store the kernel base.
Signed-off-by: Jason Yan
Cc: Diana Craciun
Cc: Michael Ellerman
Cc: Christophe Leroy
Cc: Benjamin Herrenschmidt
Cc: Paul Mackerras
Cc: Nicholas Piggin
Cc: Kees Cook
Reviewed-by
M_IF_NEEDED is defined too many times. Move it to a common place.
Signed-off-by: Jason Yan
Cc: Diana Craciun
Cc: Michael Ellerman
Cc: Christophe Leroy
Cc: Benjamin Herrenschmidt
Cc: Paul Mackerras
Cc: Nicholas Piggin
Cc: Kees Cook
Reviewed-by: Christophe Leroy
Reviewed-by: Diana Craciun
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