RE: [V2,10/68] powerpc/mm: Update _PAGE_KERNEL_RO

Hi, Geoff Levand writes: > Hi Aneesh, > >> --- a/arch/powerpc/platforms/ps3/spu.c >> +++ b/arch/powerpc/platforms/ps3/spu.c >> @@ -205,7 +205,7 @@ static void spu_unmap(struct spu *spu) >> static int __init setup_areas(struct spu *spu) >> { >> struct table {char*

Linux 4.9: Reported regressions as of Sunday, 2016-11-20

Hi! Here is my fourth regression report for Linux 4.9. It lists 10 regressions I'm aware of. 6 of them are new; 11 got fixed (wow!) since the last report -- that was two weeks ago, because I didn't find any spare time to compile a report last Sunday :-/ As always: Are you aware of any other

[PATCH] powerpc: Set missing wakeup bit in LPCR on POWER9

There is a new bit, LPCR_PECEu0, which controls wakeup from STOP states on Hypervisor Virtualization Interrupts (which happen to also be all external interrupts in host or bare metal mode). It needs to be set or we will miss wakeups. Signed-off-by: Benjamin Herrenschmidt

Re: [PATCH 2/4] powerpc/64: Provide functions for accessing POWER9 partition table

Hi Paul, [auto build test WARNING on powerpc/next] [cannot apply to v4.9-rc6 next-20161117] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system] url:

[PATCH 0/4] powerpc/64: Preparation for KVM support on POWER9

This patch series, based on the current powerpc next branch, adds various things we need in arch/powerpc in order to support KVM on POWER9. Michael, could you put these in a topic branch that I can pull? Paul. --- arch/powerpc/include/asm/mmu.h | 5

[PATCH 3/4] powerpc/powernv: Define real-mode versions of OPAL XICS accessors

This defines real-mode versions of opal_int_get_xirr(), opal_int_eoi() and opal_int_set_mfrr(), for use by KVM real-mode code. It also exports opal_int_set_mfrr() so that the modular part of KVM can use it to send IPIs. Signed-off-by: Paul Mackerras ---

[PATCH 1/4] powerpc/64: Add some more SPRs and SPR bits for POWER9

These definitions will be needed by KVM. Signed-off-by: Paul Mackerras --- arch/powerpc/include/asm/reg.h | 5 + 1 file changed, 5 insertions(+) diff --git a/arch/powerpc/include/asm/reg.h b/arch/powerpc/include/asm/reg.h index c491cfe..d2f868a 100644 ---

[PATCH 2/4] powerpc/64: Provide functions for accessing POWER9 partition table

POWER9 requires the host to set up a partition table, which is a table in memory indexed by logical partition ID (LPID) which contains the pointers to page tables and process tables for the host and each guest. This factors out the initialization of the partition table into a single function.

[PATCH 4/4] powerpc/64: Define new ISA v3.00 logical PVR value and PCR register value

From: Suraj Jitindar Singh ISA 3.00 adds the logical PVR value 0x0f05, so add a definition for this. Define PCR_ARCH_207 to reflect ISA 2.07 compatibility mode in the processor compatibility register (PCR). [pau...@ozlabs.org - moved dummy PCR_ARCH_300 value into

Re: [PATCH 2/2] KVM: PPC: sparse: prototypes for functions called from assembler

On Mon, Oct 10, 2016 at 11:31:20AM +1100, Daniel Axtens wrote: > A bunch of KVM functions are only called from assembler. > Give them prototypes in asm-prototypes.h > This reduces sparse warnings. > > Signed-off-by: Daniel Axtens Thanks, applied to kvm-ppc-next. Paul.

Re: [PATCH -next] KVM: PPC: Book3S HV: Use list_move_tail instead of list_del/list_add_tail

On Mon, Oct 17, 2016 at 03:15:50PM +, Wei Yongjun wrote: > From: Wei Yongjun > > Using list_move_tail() instead of list_del() + list_add_tail(). > > Signed-off-by: Wei Yongjun Thanks, applied to kvm-ppc-next. Paul.

Re: [PATCH 1/2] KVM: PPC: Fix sparse static warning.

On Mon, Oct 10, 2016 at 11:31:19AM +1100, Daniel Axtens wrote: > Squash a couple of sparse warnings by making things static. > > Build tested. > > Signed-off-by: Daniel Axtens Thanks, applied to kvm-ppc-next. Paul.

[PATCH v2 0/6] IMA Instrumentation Support

Power 9 has In-Memory-Accumulation (IMA) infrastructure which contains various Performance Monitoring Units (PMUs) at Nest level (these are on-chip but off-core). These Nest PMU counters are handled by a Nest IMA microcode. This microcode runs in the OCC (On-Chip Controller) complex and its

[PATCH v2 1/6] powerpc/powernv: Data structure and macros definitions

Create new header file "ima-pmu.h" to add the data structures and macros needed for IMA pmu support. Cc: Madhavan Srinivasan Cc: Michael Ellerman Cc: Benjamin Herrenschmidt Cc: Paul Mackerras Cc: Anton

[PATCH v2 2/6] powerpc/powernv: Autoload IMA device driver module

This patch does three things : - Enables "opal.c" to create a platform device for the IMA interface according to the appropriate compatibility string. - Find the reserved-memory region details from the system device tree and get the base address of HOMER region address for each chip. - We

[PATCH v2 4/6] powerpc/perf: Add event attribute and group to IMA pmus

Device tree IMA driver code parses the IMA units and their events. It passes the information to IMA pmu code which is placed in powerpc/perf as "ima-pmu.c". This patch creates only event attributes and attribute groups for the IMA pmus. Cc: Madhavan Srinivasan Cc:

[PATCH v2 3/6] powerpc/powernv: Detect supported IMA units and its events

Parse device tree to detect IMA units. Traverse through each IMA unit node to find supported events and corresponding unit/scale files (if any). Right now, only nest IMA units are supported. The nest IMA unit event node from device tree will contain the offset in the reserved memory region to get

[PATCH v2 5/6] powerpc/perf: Generic ima pmu event functions

Since, the IMA counters' data are periodically fed to a memory location, the functions to read/update, start/stop, add/del can be generic and can be used by all IMA PMU units. This patch adds a set of generic ima pmu related event functions to be used by each ima pmu unit. Add code to setup

[PATCH v2 6/6] powerpc/perf: IMA pmu cpumask and cpu hotplug support

Adds cpumask attribute to be used by each IMA pmu. Only one cpu (any online CPU) from each chip for nest PMUs is designated to read counters. On CPU hotplug, dying CPU is checked to see whether it is one of the designated cpus, if yes, next online cpu from the same chip (for nest units) is

Re: [PATCH] powerpc/xmon: Add support for dump in reverse

On 18/11/16 13:02, kbuild test robot wrote: > Hi Balbir, > > [auto build test ERROR on powerpc/next] > [also build test ERROR on v4.9-rc5 next-20161117] > [if your patch is applied to the wrong git tree, please drop us a note to > help improve the system] > > url: >

Re: [PATCH 02/13] powerpc/64: Provide functions for accessing POWER9 partition table

On Sat, Nov 19, 2016 at 12:05:21PM +0530, Aneesh Kumar K.V wrote: > Paul Mackerras writes: > > > On Fri, Nov 18, 2016 at 07:57:30PM +0530, Aneesh Kumar K.V wrote: > >> Paul Mackerras writes: > >> + > >> > +/* Global flush of TLBs and partition

Re: [V2,10/68] powerpc/mm: Update _PAGE_KERNEL_RO

Hi Aneesh, On 11/20/2016 10:03 AM, Aneesh Kumar K.V wrote: > So I am trying to understand what the PPP bit value should be. I haven't > studied PS3 enough to figure this out myself. So we use the SLB class > value of 0 for the kernel and 1 for user. What is the expected PPP bit > value for the

Re: [PATCH 05/13] KVM: PPC: Book3S HV: Adapt to new HPTE format on POWER9

On Sat, Nov 19, 2016 at 11:38:40AM +1100, Balbir Singh wrote: > > > On 18/11/16 18:28, Paul Mackerras wrote: > > This adapts the KVM-HV hashed page table (HPT) code to read and write > > HPT entries in the new format defined in Power ISA v3.00 on POWER9 > > machines. The new format moves the B

Re: [PATCH] powerpc: kprobes: invoke handlers directly

On Fri, Nov 18, 2016 at 05:09:26PM +0530, Naveen N. Rao wrote: > ... rather than through notify_die(), to reduce path taken for handling > kprobes. Similar to commit 6f6343f53d13 ("kprobes/x86: Call exception > handlers directly from do_int3/do_debug"). > > While at it, rename