Le 06/05/2020 à 05:40, Jordan Niethe a écrit :
Introduce a probe_user_read_inst() function to use in cases where
probe_user_read() is used for getting an instruction. This will be more
useful for prefixed instructions.
Reviewed-by: Alistair Popple
Signed-off-by: Jordan Niethe
---
v6: - New
Le 06/05/2020 à 05:40, Jordan Niethe a écrit :
A future revision of the ISA will introduce prefixed instructions. A
prefixed instruction is composed of a 4-byte prefix followed by a
4-byte suffix.
All prefixes have the major opcode 1. A prefix will never be a valid
word instruction. A suffix
Emil Velikov writes:
> With earlier commits, the API no longer discards the const-ness of the
> sysrq_key_op. As such we can add the notation.
>
> Cc: Greg Kroah-Hartman
> Cc: Jiri Slaby
> Cc: linux-ker...@vger.kernel.org
> Cc: Michael Ellerman
> Cc: Benjamin Herrenschmidt
> Cc: Paul
Hi mpe, could you please take this.
arch/powerpc/include/asm/uaccess.h | 3 +++
arch/powerpc/kernel/vecemu.c | 2 +-
2 files changed, 4 insertions(+), 1 deletion(-)
diff --git a/arch/powerpc/include/asm/uaccess.h
b/arch/powerpc/include/asm/uaccess.h
---
Hi mpe,
Relating to your message on [PATCH v8 16/30] powerpc: Define and use
__get_user_instr{,inatomic}() - could you please take this.
diff --git a/arch/powerpc/include/asm/uaccess.h
b/arch/powerpc/include/asm/uaccess.h
--- a/arch/powerpc/include/asm/uaccess.h
+++
Implement rtas_call_reentrant() for reentrant rtas-calls:
"ibm,int-on", "ibm,int-off",ibm,get-xive" and "ibm,set-xive".
On LoPAPR Version 1.1 (March 24, 2016), from 7.3.10.1 to 7.3.10.4,
items 2 and 3 say:
2 - For the PowerPC External Interrupt option: The * call must be
reentrant to the number
In order to get any rtas* struct into other headers, including rtas.h
may cause a lot of errors, regarding include dependency needed for
inline functions.
Create rtas-types.h and move there all type/struct definitions
from rtas.h, then include rtas-types.h into rtas.h.
Also, as suggested by
Patch 2 implement rtas_call_reentrant() for reentrant rtas-calls:
"ibm,int-on", "ibm,int-off",ibm,get-xive" and "ibm,set-xive",
according to LoPAPR Version 1.1 (March 24, 2016).
For that, it's necessary that every call uses a different
rtas buffer (rtas_args). Paul Mackerras suggested using the
On Thu, May 14, 2020 at 12:17 AM Michael Ellerman wrote:
>
> Jordan Niethe writes:
> > Define specific __get_user_instr() and __get_user_instr_inatomic()
> > macros for reading instructions from user space.
>
> At least for fix_alignment() we could be coming from the kernel, not
> sure about the
On Wed, May 13, 2020 at 10:52 PM Michael Ellerman wrote:
>
> Jordan Niethe writes:
> > diff --git a/arch/powerpc/lib/inst.c b/arch/powerpc/lib/inst.c
> > new file mode 100644
> > index ..eaf786afad2b
> > --- /dev/null
> > +++ b/arch/powerpc/lib/inst.c
> > @@ -0,0 +1,18 @@
> > +//
to specify the
base tree in git format-patch, please see https://stackoverflow.com/a/37406982]
url:
https://github.com/0day-ci/linux/commits/Leonardo-Bras/powerpc-rtas-Move-type-struct-definitions-from-rtas-h-into-rtas-types-h/20200513-134244
base: https://git.kernel.org/pub/scm/linux/kernel
On Tue, May 12, 2020 at 1:08 AM Christoph Hellwig wrote:
>
> On Sat, May 09, 2020 at 08:07:14AM -0700, Dan Williams wrote:
> > > which are all used in the I/O submission path (generic_make_request /
> > > generic_make_request_checks). This is mostly a prep cleanup patch to
> > > also remove the
Hello Scott
On 08/05/2020, Scott Wood wrote:
> On Thu, 2020-05-07 at 22:30 +0100, Darren Stevens wrote:
>>
>> +/include/ "p5040si-pre.dtsi"
>> +
>> +/ {
>> +model = "varisys,CYRUS5040";
>> +compatible = "varisys,CYRUS";
>
> Is this board 100% compatible with the Cyrus P5020 board, down
With earlier commits, the API no longer discards the const-ness of the
sysrq_key_op. As such we can add the notation.
Cc: Greg Kroah-Hartman
Cc: Jiri Slaby
Cc: linux-ker...@vger.kernel.org
Cc: Michael Ellerman
Cc: Benjamin Herrenschmidt
Cc: Paul Mackerras
Cc: linuxppc-dev@lists.ozlabs.org
On Wed, May 13, 2020 at 11:33 AM Christoph Hellwig wrote:
>
> On Wed, May 13, 2020 at 11:29:17AM -0700, Song Liu wrote:
> > On Fri, May 8, 2020 at 9:17 AM Christoph Hellwig wrote:
> > >
> > > Signed-off-by: Christoph Hellwig
> >
> > Thanks for the cleanup. IIUC, you want this go through md
On Fri, May 8, 2020 at 9:17 AM Christoph Hellwig wrote:
>
> Signed-off-by: Christoph Hellwig
Thanks for the cleanup. IIUC, you want this go through md tree?
Otherwise,
Acked-by: Song Liu
> ---
> drivers/md/md.c | 3 +--
> 1 file changed, 1 insertion(+), 2 deletions(-)
>
> diff --git
Hi Nicholas,
Small comment below:
On 4/30/20 1:02 AM, Nicholas Piggin wrote:
> Add support for the scv instruction on POWER9 and later CPUs.
>
> For now this implements the zeroth scv vector 'scv 0', as identical
> to 'sc' system calls, with the exception that lr is not preserved, and
> it is
Apologies for the delayed update. Its been quite some time since I
posted the last version (v5), but I have been really caught up in some
other critical issues.
Changes since v5:
- v5 can be viewed here:
http://lists.infradead.org/pipermail/kexec/2019-November/024055.html
-
Right now user-space tools like 'makedumpfile' and 'crash' need to rely
on a best-guess method of determining value of 'MAX_PHYSMEM_BITS'
supported by underlying kernel.
This value is used in user-space code to calculate the bit-space
required to store a section for SPARESMEM (similar to the
-20200513
x86_64 randconfig-a003-20200513
x86_64 randconfig-a006-20200513
x86_64 randconfig-a004-20200513
x86_64 randconfig-a001-20200513
x86_64 randconfig-a002-20200513
i386 randconfig-a006-20200513
i386
allmodconfig
powerpc allnoconfig
x86_64 randconfig-a005-20200513
x86_64 randconfig-a003-20200513
x86_64 randconfig-a006-20200513
x86_64 randconfig-a004-20200513
x86_64 randconfig-a001-20200513
x86_64
allmodconfig
powerpc allnoconfig
x86_64 randconfig-a005-20200513
x86_64 randconfig-a003-20200513
x86_64 randconfig-a006-20200513
x86_64 randconfig-a004-20200513
x86_64 randconfig
On Wed, May 13, 2020 at 11:29:17AM -0700, Song Liu wrote:
> On Fri, May 8, 2020 at 9:17 AM Christoph Hellwig wrote:
> >
> > Signed-off-by: Christoph Hellwig
>
> Thanks for the cleanup. IIUC, you want this go through md tree?
Yes, please pick it up though the md tree.
On Tue, May 12, 2020 at 8:47 PM Aneesh Kumar K.V
wrote:
>
> Architectures like ppc64 provide persistent memory specific barriers
> that will ensure that all stores for which the modifications are
> written to persistent storage by preceding dcbfps and dcbstps
> instructions have updated
Jordan Niethe writes:
> Define specific __get_user_instr() and __get_user_instr_inatomic()
> macros for reading instructions from user space.
At least for fix_alignment() we could be coming from the kernel, not
sure about the other cases.
I can tweak the change log.
> diff --git
opal_xive_donate_page() will reference the newly allocated memory using
__pa(). Since kmemleak is unable to track the physical memory resulting
in false positives, silence those by using kmemleak_ignore().
unreferenced object 0xc000201b53e9 (size 65536):
comm "qemu-kvm", pid 124557, jiffies
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 resulting in false
positives, silence those by using kmemleak_ignore().
Jordan Niethe writes:
> diff --git a/arch/powerpc/lib/inst.c b/arch/powerpc/lib/inst.c
> new file mode 100644
> index ..eaf786afad2b
> --- /dev/null
> +++ b/arch/powerpc/lib/inst.c
> @@ -0,0 +1,18 @@
> +// SPDX-License-Identifier: GPL-2.0-or-later
> +/*
> + * Copyright 2020, IBM
On Tue, 7 Apr 2020 14:12:45 +1000, Nicholas Piggin wrote:
> get/put_user can be called with nontrivial arguments. fs/proc/page.c
> has a good example:
>
> if (put_user(stable_page_flags(ppage), out)) {
>
> stable_page_flags is quite a lot of code, including spin locks in the
> page
On Wed, 29 Apr 2020 16:26:00 +1000, Nicholas Piggin wrote:
> Here's a bunch of fixes I collected, and some that Aneesh needs for
> his kuap on hash series.
>
> Nicholas Piggin (6):
> powerpc/64/kuap: move kuap checks out of MSR[RI]=0 regions of exit
> code
> missing isync
>
On Fri, 1 May 2020 10:16:52 -0400, Nayna Jain wrote:
> To prevent verifying the kernel module appended signature twice
> (finit_module), once by the module_sig_check() and again by IMA, powerpc
> secure boot rules define an IMA architecture specific policy rule
> only if CONFIG_MODULE_SIG_FORCE is
On Sun, 3 May 2020 00:33:16 +1000, Michael Ellerman wrote:
> Hugh reported that his trusty G5 crashed after a few hours under load
> with an "Unrecoverable exception 380".
>
> The crash is in interrupt_return() where we check lazy_irq_pending(),
> which calls get_paca() and with
On Sat, 9 May 2020 09:42:14 + (UTC), Christophe Leroy wrote:
> There are other clocks than the standard ones, for instance
> per process clocks. Therefore, being above the last standard clock
> doesn't mean it is a bad clock. So, fallback to syscall instead
> of returning -EINVAL
On Sat, 9 May 2020 17:05:11 + (UTC), Christophe Leroy wrote:
> When CONFIG_VIRT_CPU_ACCOUNTING is selected, system call exception
> handler doesn't fit below 0xd00 and build fails.
>
> As exception 0xd00 doesn't exist and is never generated by 40x,
> comment it out in order to get more space
On Mon, 20 Apr 2020 07:47:05 + (UTC), Christophe Leroy wrote:
> gpr2 is not a parametre of kuap_check(), it doesn't exist.
>
> Use gpr instead.
Applied to powerpc/fixes.
[1/1] powerpc/32s: Fix build failure with CONFIG_PPC_KUAP_DEBUG
Hi Mike,
On 13/5/20 4:44 am, Mike Rapoport wrote:
From: Mike Rapoport
The cache_page() and nocache_page() functions are only used by the morotola
On Tue, 2020-05-05 at 07:17:08 UTC, "Aneesh Kumar K.V" wrote:
> Fetch pkey from vma instead of linux page table. Also document the fact that
> in
> some cases the pkey returned in siginfo won't be the same as the one we took
> keyfault on. Even with linux page table walk, we can end up in a
* Christopher Lameter [2020-05-12 16:31:26]:
> On Tue, 12 May 2020, Srikar Dronamraju wrote:
>
> > +#ifdef CONFIG_NUMA
> > + [N_ONLINE] = NODE_MASK_NONE,
>
> Again. Same issue as before. If you do this then you do a global change
> for all architectures. You need to put something in the
On Thu, May 07, 2020 at 08:10:37AM -0500, wenxi...@linux.vnet.ibm.com wrote:
> From: Wen Xiong
>
> Several device drivers hit EEH(Extended Error handling) when triggering
> kdump on Pseries PowerVM. This patch implemented a reset of the PHBs
> in pci general code. PHB reset stop all PCI
On Tue, May 12, 2020 at 02:39:50PM -0700, rana...@codeaurora.org wrote:
> On 2020-05-12 01:25, Greg KH wrote:
> > On Tue, May 12, 2020 at 09:22:15AM +0200, Jiri Slaby wrote:
> > > On 11. 05. 20, 9:39, Greg KH wrote:
> > > > On Mon, May 11, 2020 at 12:23:58AM -0700, rana...@codeaurora.org wrote:
>
also suggest to use '--base' option to specify the
base tree in git format-patch, please see https://stackoverflow.com/a/37406982]
url:
https://github.com/0day-ci/linux/commits/Aneesh-Kumar-K-V/powerpc-pmem-Add-new-instructions-for-persistent-storage-and-sync/20200513-133938
base:
> On May 13, 2020, at 12:04 AM, Michael Ellerman wrote:
>
> This should probably also have an include of ?
No, asm/book3s/64/pgalloc.h has already had it and since this is
book3s_64_mmu_radix.c, it will include it eventually from,
asm/pgalloc.h
asm/book3s/pgalloc.h
On Tue, May 12, 2020 at 04:00:26PM -0700, Palmer Dabbelt wrote:
> Reviewed-by: Palmer Dabbelt
> Acked-by: Palmer Dabbelt
>
> Were you trying to get these all in at once, or do you want me to take it into
> my tree?
Except for the small fixups at the beginning of the series this needs
to go in
On 5/12/20 1:10 AM, Nathan Lynch wrote:
> Hello,
>
> Kajol Jain writes:
>> 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
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