Re: [PATCH] of/irq: improve error message on irq discovery process failure

On Wed, 2016-11-09 at 12:05 -0200, Guilherme G. Piccoli wrote: > diff --git a/drivers/of/irq.c b/drivers/of/irq.c > index 393fea8..1ad6882 100644 > --- a/drivers/of/irq.c > +++ b/drivers/of/irq.c > @@ -275,7 +275,10 @@ int of_irq_parse_raw(const __be32 *addr, struct > of_phandle_args *out_irq) >  

Re: [PATCH] of/irq: improve error message on irq discovery process failure

On Wed, 2016-11-09 at 19:04 +, Mark Rutland wrote: > > > If we don't have an interrupt-map on a PCI controller, why don't we > instead log a message regarding that being missing, and give up > early? Why ? It's legit to not support LSIs. > That sounds like a more generically useful error

Re: [PATCH v6 4/4] of/fdt: mark hotpluggable memory

On Thu, Nov 10, 2016 at 11:56:02AM +1100, Balbir Singh wrote: Have you tested this across all combinations of skiboot/kexec/SLOF boots? I've tested it under qemu/grub, simics/skiboot, and via kexec. -- Reza Arbab

[PATCH] powerpc/64: Simplify adaptation to new ISA v3.00 HPTE format

This changes the way that we support the new ISA v3.00 HPTE format. Instead of adapting everything that uses HPTE values to handle either the old format or the new format, depending on which CPU we are on, we now convert explicitly between old and new formats if necessary in the low-level routines

Re: [PATCH] powerpc/mm: Move hpte encode routine to platform specific files

On Thu, Nov 10, 2016 at 02:54:23PM +0530, Aneesh Kumar K.V wrote: > They differ between powernv and pseries. While we are at it copy > a version for ps3 too. For now this is same as what we have for pSeries. > > Fixes: 50de596de8be6 ("powerpc/mm/hash: Add support for Power9 Hash") This seems

Re: [PATCH 2/3] Detect instruction fetch denied and report

On 09/11/16 03:09, Aneesh Kumar K.V wrote: > Balbir Singh writes: > >> ISA 3 allows for prevention of instruction fetch and execution >> of user mode pages. If such an error occurs, SRR1 bit 35 >> reports the error. We catch and report the error in do_page_fault() >> >>

Re: [PATCH 3/3] Enable storage keys for radix - user mode execution

On 09/11/16 03:15, Aneesh Kumar K.V wrote: > Balbir Singh writes: > >> ISA 3 defines new encoded access authority that allows instruction >> access prevention in privileged mode and allows normal access >> to problem state. This patch just enables IAMR (Instruction

Re: [PATCH 1/3] Setup AMOR in HV mode

On 09/11/16 02:13, Aneesh Kumar K.V wrote: > Balbir Singh writes: > >> AMOR should be setup in HV mode, we set it up once >> and let the generic kernel handle IAMR. This patch is >> used to enable storage keys in a following patch as >> defined in ISA 3 >> >>

Re: [PATCH V3 1/2] powerpc: Define new ISA v3.00 logical PVR value and PCR register value

On Thu, 2016-11-10 at 21:36 +1100, Michael Ellerman wrote: > Suraj Jitindar Singh writes: > > > > > On Tue, 2016-11-08 at 19:21 +1100, Michael Ellerman wrote: > > > > > > Suraj Jitindar Singh writes: > > > > > > > > > > > > > > > ISA 3.00

Re: [PATCH 3/4] hugetlb: Change the function prototype to take vma_area_struct as arg

Benjamin Herrenschmidt writes: > On Thu, 2016-11-10 at 14:59 +0530, Aneesh Kumar K.V wrote: >> This help us to find the hugetlb page size which we need ot use on some >> archs like ppc64 for tlbflush. This also make the interface consistent >> with other hugetlb

Re: [PATCH] powerpc/mm: Move hpte encode routine to platform specific files

On 10/11/16 20:24, Aneesh Kumar K.V wrote: > They differ between powernv and pseries. While we are at it copy > a version for ps3 too. For now this is same as what we have for pSeries. > > Fixes: 50de596de8be6 ("powerpc/mm/hash: Add support for Power9 Hash") > Signed-off-by: Aneesh Kumar K.V

Re: [PATCH] powerpc/mm: Move hpte encode routine to platform specific files

On 11/11/16 10:54, Balbir Singh wrote: > > > On 10/11/16 20:24, Aneesh Kumar K.V wrote: >> They differ between powernv and pseries. While we are at it copy >> a version for ps3 too. For now this is same as what we have for pSeries. >> >> Fixes: 50de596de8be6 ("powerpc/mm/hash: Add support for

Re: [PATCH 2/3] powerpc: add struct smp_ops_t.cause_nmi_ipi operation

On Wed, 9 Nov 2016 01:01:24 AM Nicholas Piggin wrote: > Allow platforms to provide an NMI IPI, and wire that to the NMI > system. > --- > arch/powerpc/include/asm/smp.h| 5 + > arch/powerpc/kernel/smp.c | 21 - >

Re: [PATCH v6 4/4] of/fdt: mark hotpluggable memory

On 08/11/16 10:44, Reza Arbab wrote: > When movable nodes are enabled, any node containing only hotpluggable > memory is made movable at boot time. > > On x86, hotpluggable memory is discovered by parsing the ACPI SRAT, > making corresponding calls to memblock_mark_hotplug(). > > If we

Re: [PATCH] powerpc/mm: Move hpte encode routine to platform specific files

Balbir Singh writes: > On 11/11/16 10:54, Balbir Singh wrote: >> >> >> On 10/11/16 20:24, Aneesh Kumar K.V wrote: >>> They differ between powernv and pseries. While we are at it copy >>> a version for ps3 too. For now this is same as what we have for pSeries. >>> >>>

Re: [PATCH 2/3] powerpc: add struct smp_ops_t.cause_nmi_ipi operation

On Fri, 11 Nov 2016 12:00:14 +1100 Alistair Popple wrote: > On Wed, 9 Nov 2016 01:01:24 AM Nicholas Piggin wrote: > > Allow platforms to provide an NMI IPI, and wire that to the NMI > > system. > > --- > > arch/powerpc/include/asm/smp.h| 5 + > >

Re: [Linux-ima-devel] [PATCH v6 02/10] ima: on soft reboot, restore the measurement list

On Tue, 2016-11-08 at 15:47 -0500, Mimi Zohar wrote: > On Tue, 2016-11-08 at 21:46 +0200, Dmitry Kasatkin wrote: > > On Fri, Oct 21, 2016 at 5:44 AM, Thiago Jung Bauermann > > > +/* Restore the serialized binary measurement list without extending > > > PCRs. */ > > > +int

Re: [PATCH 1/3] crash: move crashkernel parsing and vmcore related code under CONFIG_CRASH_CORE

Hi Hari, [auto build test WARNING on linus/master] [also build test WARNING on v4.9-rc4] [cannot apply to powerpc/next next-20161110] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system] url: https://github.com/0day-ci/linux/commits/Hari-Bathini

Re: [PATCH v2 0/7] soc: renesas: Identify SoC and register with the SoC bus

Hi Ulf, On Wed, Nov 9, 2016 at 10:12 PM, Arnd Bergmann wrote: > On Wednesday, November 9, 2016 6:19:06 PM CET Geert Uytterhoeven wrote: >> On Wed, Nov 9, 2016 at 5:56 PM, Arnd Bergmann wrote: >> > On Wednesday, November 9, 2016 2:34:33 PM CET Geert Uytterhoeven

Re: [PATCH 1/2] powerpc: fix graceful debugger recovery

Nicholas Piggin writes: > On Thu, 10 Nov 2016 12:35:59 +1100 > Michael Ellerman wrote: > >> Nicholas Piggin writes: >> >> > When exiting xmon with 'x' (exit and recover), oops_begin bails >> > out immediately, but die then calls

[PATCH 3/3] powerpc/fadump: update documentation about crashkernel parameter reuse

As we are reusing crashkernel parameter instead of fadump_reserve_mem parameter to specify the memory to reserve for fadump's crash kernel, update the documentation accordingly. Signed-off-by: Hari Bathini --- Documentation/powerpc/firmware-assisted-dump.txt | 23

[PATCH v3 3/3] powernv: Pass PSSCR value and mask to power9_idle_stop

From: "Gautham R. Shenoy" The power9_idle_stop method currently takes only the requested stop level as a parameter and picks up the rest of the PSSCR bits from a hand-coded macro. This is not a very flexible design, especially when the firmware has the capability to

[PATCH 3/4] hugetlb: Change the function prototype to take vma_area_struct as arg

This help us to find the hugetlb page size which we need ot use on some archs like ppc64 for tlbflush. This also make the interface consistent with other hugetlb functions Signed-off-by: Aneesh Kumar K.V --- arch/arm/include/asm/hugetlb-3level.h| 8

Re: [PATCH V3 1/2] powerpc: Define new ISA v3.00 logical PVR value and PCR register value

Suraj Jitindar Singh writes: > On Tue, 2016-11-08 at 19:21 +1100, Michael Ellerman wrote: >> Suraj Jitindar Singh writes: >> >> > >> > ISA 3.00 adds the logical PVR value 0x0f05, so add a definition >> > for >> > this. >> > >> > Define

[PATCH v3 2/3] cpuidle:powernv: Add helper function to populate powernv idle states.

From: "Gautham R. Shenoy" In the current code for powernv_add_idle_states, there is a lot of code duplication while initializing an idle state in powernv_states table. Add an inline helper function to populate the powernv_states[] table for a given idle state. Invoke

[PATCH v3 1/3] powernv:idle: Add IDLE_STATE_ENTER_SEQ_NORET macro

From: "Gautham R. Shenoy" Currently all the low-power idle states are expected to wake up at reset vector 0x100. Which is why the macro IDLE_STATE_ENTER_SEQ that puts the CPU to an idle state and never returns. On ISA_300, when the ESL and EC bits in the PSSCR are zero,

[PATCH 1/4] powerpc/mm: update ptep_set_access_flag to not do full mm tlb flush

When we are updating pte, we just need to flush the tlb mapping for that pte. Right now we do a full mm flush because we don't track page size. Update the interface to track the page size and use that to do the right tlb flush. Signed-off-by: Aneesh Kumar K.V ---

[PATCH 2/4] powerpc/mm: Rename hugetlb-radix.h to hugetlb.h

We will start moving some book3s specific hugetlb functions there. Signed-off-by: Aneesh Kumar K.V --- arch/powerpc/include/asm/book3s/64/{hugetlb-radix.h => hugetlb.h} | 6 -- arch/powerpc/include/asm/hugetlb.h| 2 +- 2 files

Re: [PATCH v2 0/7] soc: renesas: Identify SoC and register with the SoC bus

On Thu, Nov 10, 2016 at 10:22 AM, Geert Uytterhoeven wrote: > Thanks, I've created the branch/tag : > > git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-drivers.git > branch soc-device-match > signed tag soc-device-match-tag1 Tested by kbuild test

[PATCH 4/4] powerpc/mm: update pte_update to not do full mm tlb flush

When we are updating pte, we just need to flush the tlb mapping for that pte. Right now we do a full mm flush because we don't track page size. Update the interface to track the page size and use that to do the right tlb flush. Signed-off-by: Aneesh Kumar K.V ---

Re: [PATCH v2 7/7] soc: renesas: Identify SoC and register with the SoC bus

On Thursday, November 10, 2016 11:19:20 AM CET Geert Uytterhoeven wrote: > Hi Arnd, > > Thanks for your comments! > > On Wed, Nov 9, 2016 at 5:55 PM, Arnd Bergmann wrote: > > On Monday, October 31, 2016 12:30:55 PM CET Geert Uytterhoeven wrote: > >> v2: > >> - Drop SoC families

[PATCH 1/3] crash: move crashkernel parsing and vmcore related code under CONFIG_CRASH_CORE

Traditionally, kdump is used to save vmcore in case of a crash. Some architectures like powerpc can save vmcore using architecture specific support instead of kexec/kdump mechanism. Such architecture specific support also needs to reserve memory, to be used by dump capture kernel. crashkernel

Re: [v16, 0/7] Fix eSDHC host version register bug

Hi Ulf, On Wed, Nov 9, 2016 at 7:27 PM, Ulf Hansson wrote: > On 9 November 2016 at 04:14, Yangbo Lu wrote: >> This patchset is used to fix a host version register bug in the >> T4240-R1.0-R2.0 >> eSDHC controller. To match the SoC version and

[PATCH 2/3] powerpc/fadump: reuse crashkernel parameter for fadump memory reservation

fadump supports specifying memory to reserve for fadump's crash kernel with fadump_reserve_mem kernel parameter. This parameter currently supports passing a fixed memory size, like fadump_reserve_mem= only. This patch aims to add support for other syntaxes like range-based memory size :[,:,:,...]

[PATCH] powerpc/mm: Move hpte encode routine to platform specific files

They differ between powernv and pseries. While we are at it copy a version for ps3 too. For now this is same as what we have for pSeries. Fixes: 50de596de8be6 ("powerpc/mm/hash: Add support for Power9 Hash") Signed-off-by: Aneesh Kumar K.V ---

Re: [PATCH v2 7/7] soc: renesas: Identify SoC and register with the SoC bus

Hi Arnd, Thanks for your comments! On Wed, Nov 9, 2016 at 5:55 PM, Arnd Bergmann wrote: > On Monday, October 31, 2016 12:30:55 PM CET Geert Uytterhoeven wrote: >> v2: >> - Drop SoC families and family names; use fixed "Renesas" instead, > > I think I'd rather have seen the

[PATCH 0/3] kexec/fadump: remove dependency with CONFIG_KEXEC and reuse crashkernel parameter for fadump

Traditionally, kdump is used to save vmcore in case of a crash. Some architectures like powerpc can save vmcore using architecture specific support instead of kexec/kdump mechanism. Such architecture specific support also needs to reserve memory, to be used by dump capture kernel. crashkernel

[PATCHC v7 03/10] ima: permit duplicate measurement list entries

Measurements carried across kexec need to be added to the IMA measurement list, but should not prevent measurements of the newly booted kernel from being added to the measurement list. This patch adds support for allowing duplicate measurements. The "boot_aggregate" measurement entry is the

[PATCHC v7 08/10] ima: support restoring multiple template formats

The configured IMA measurement list template format can be replaced at runtime on the boot command line, including a custom template format. This patch adds support for restoring a measuremement list containing multiple builtin/custom template formats. Changelog v7: - remove unnecessary

[PATCHC v7 05/10] powerpc: ima: Send the kexec buffer to the next kernel

From: Thiago Jung Bauermann The IMA kexec buffer allows the currently running kernel to pass the measurement list via a kexec segment to the kernel that will be kexec'd. This is the architecture-specific part of setting up the IMA kexec buffer for the next kernel.

[PATCHC v7 09/10] ima: define a canonical binary_runtime_measurements list format

The IMA binary_runtime_measurements list is currently in platform native format. To allow restoring a measurement list carried across kexec with a different endianness than the targeted kernel, this patch defines little-endian as the canonical format. For big endian systems wanting to

[PATCHC v7 00/10] ima: carry the measurement list across kexec

[Posting with abbreviated Cc list.] The TPM PCRs are only reset on a hard reboot. In order to validate a TPM's quote after a soft reboot (eg. kexec -e), the IMA measurement list of the running kernel must be saved and then restored on the subsequent boot, possibly of a different architecture.

[PATCHC v7 04/10] ima: maintain memory size needed for serializing the measurement list

In preparation for serializing the binary_runtime_measurements, this patch maintains the amount of memory required. Changelog v7: - include the trailing null in the string length (reported by Dmitry Kasatkin) Changelog v5: - replace CONFIG_KEXEC_FILE with architecture CONFIG_HAVE_IMA_KEXEC

[PATCHC v7 02/10] ima: on soft reboot, restore the measurement list

The TPM PCRs are only reset on a hard reboot. In order to validate a TPM's quote after a soft reboot (eg. kexec -e), the IMA measurement list of the running kernel must be saved and restored on boot. This patch restores the measurement list. Changelog v7: - add and fix missing buffer length

[PATCHC v7 07/10] ima: store the builtin/custom template definitions in a list

The builtin and single custom templates are currently stored in an array. In preparation for being able to restore a measurement list containing multiple builtin/custom templates, this patch stores the builtin and custom templates as a linked list. This will permit defining more than one custom

[PATCHC v7 06/10] ima: on soft reboot, save the measurement list

The TPM PCRs are only reset on a hard reboot. In order to validate a TPM's quote after a soft reboot (eg. kexec -e), the IMA measurement list of the running kernel must be saved and restored on boot. This patch uses the kexec buffer passing mechanism to pass the serialized IMA

[PATCHC v7 01/10] powerpc: ima: Get the kexec buffer passed by the previous kernel

From: Thiago Jung Bauermann The IMA kexec buffer allows the currently running kernel to pass the measurement list via a kexec segment to the kernel that will be kexec'd. The second kernel can check whether the previous kernel sent the buffer and retrieve it. This is

[PATCHC v7 10/10] ima: platform-independent hash value

From: Andreas Steffen For remote attestion it is important for the ima measurement values to be platform-independent. Therefore integer fields to be hashed must be converted to canonical format. Changelog: - Define canonical format as little endian (Mimi)

[PATCH v3 0/3] powernv:stop: Use psscr_val,mask provided by firmware

From: "Gautham R. Shenoy" This is the third iteration of the patchset to use the psscr_val and psscr_mask provided by the firmware for each of the stop states. The previous version can be found here: [v2]: https://lkml.org/lkml/2016/10/27/143 [v1]:

Re: [PATCH] powerpc/mm: Correct process and partition table max size

Suraj Jitindar Singh writes: > Version 3.00 of the ISA states that the PATS (partition table size) field > of the PTCR (partition table control register) and the PRTS (process table > size) field of the partition table entry must both be less than or equal > to 24.

Re: [PATCH v2 0/7] soc: renesas: Identify SoC and register with the SoC bus

On 10 November 2016 at 10:22, Geert Uytterhoeven wrote: > Hi Ulf, > > On Wed, Nov 9, 2016 at 10:12 PM, Arnd Bergmann wrote: >> On Wednesday, November 9, 2016 6:19:06 PM CET Geert Uytterhoeven wrote: >>> On Wed, Nov 9, 2016 at 5:56 PM, Arnd Bergmann

Re: [PATCH 3/4] hugetlb: Change the function prototype to take vma_area_struct as arg

On Thu, 2016-11-10 at 14:59 +0530, Aneesh Kumar K.V wrote: > This help us to find the hugetlb page size which we need ot use on some > archs like ppc64 for tlbflush. This also make the interface consistent > with other hugetlb functions What about my requested simpler approach ? For normal