On Thu 09-01-25 18:45:40, Andrey Albershteyn wrote:
> From: Andrey Albershteyn
>
> Introduce getfsxattrat and setfsxattrat syscalls to manipulate inode
> extended attributes/flags. The syscalls take parent directory FD and
> path to the child together with struct fsxattr.
>
> This is an alternat
On Fri, 06 Dec 2024 15:00:39 -0600, Gaurav Batra wrote:
> Power Hypervisor can possibily allocate MMIO window intersecting with
> Dynamic DMA Window (DDW) range, which is over 32-bit addressing.
>
> These MMIO pages needs to be marked as reserved so that IOMMU doesn't map
> DMA buffers in this ran
On Wed, 18 Dec 2024 22:43:47 +1100, Michael Ellerman wrote:
> Commit c814bf958926 ("powerpc/selftests: Use timersub() for
> gettimeofday()"), got the order of arguments to timersub() wrong,
> leading to a negative time delta being reported, eg:
>
> test: gettimeofday
> tags: git_version:v6.12-
On Wed, 18 Dec 2024 22:31:59 +1100, Michael Ellerman wrote:
> Use IS_ENABLED() for the device tree checks, so that more code is
> checked by the compiler without having to build all the different
> configurations.
>
>
Applied to powerpc/next.
[1/1] powerpc/prom_init: Use IS_ENABLED()
http
On Mon, Jan 13, 2025 at 11:21:24AM +0100, Veronika Molnarova wrote:
> On 1/10/25 10:43, Athira Rajeev wrote:
> > But if there are other probes in the system, the log will
> > contain reference to other existing probe too. Hence change
> > usage of check_all_lines_matched.pl to check_all_patterns_fo
On Fri, Jan 10, 2025 at 01:58:45PM +, Alexandru Elisei wrote:
> The help text for the --processor option displays the architecture name as
> the default processor type. But the default for arm is cortex-a15, and for
> arm64 is cortex-a57. Teach configure to display the correct default
> process
Alistair Popple wrote:
> In preparation for using insert_page() for DAX, enhance
> insert_page_into_pte_locked() to handle establishing writable
> mappings. Recall that DAX returns VM_FAULT_NOPAGE after installing a
> PTE which bypasses the typical set_pte_range() in finish_fault.
>
> Signed-off-
Alistair Popple wrote:
> Currently DAX folio/page reference counts are managed differently to
> normal pages. To allow these to be managed the same as normal pages
> introduce vmf_insert_folio_pmd. This will map the entire PMD-sized folio
> and take references as it would for a normally mapped page
Alistair Popple wrote:
> Add helpers to determine if a page or folio is a devdax or fsdax page
> or folio.
>
> Signed-off-by: Alistair Popple
> Acked-by: David Hildenbrand
>
> ---
>
> Changes for v5:
> - Renamed is_device_dax_page() to is_devdax_page() for consistency.
> ---
> include/linux/
Alistair Popple wrote:
> The rmap doesn't currently support adding a PUD mapping of a
> folio. This patch adds support for entire PUD mappings of folios,
> primarily to allow for more standard refcounting of device DAX
> folios. Currently DAX is the only user of this and it doesn't require
> suppor
On Tue, Jan 14, 2025 at 5:04 AM Sami Tolvanen wrote:
>
> Hi Masahiro,
>
> On Fri, Jan 10, 2025 at 6:26 PM Masahiro Yamada wrote:
> >
> > On Sat, Jan 4, 2025 at 2:37 AM Matthew Maurer wrote:
> > >
> > > From: Sami Tolvanen
> > >
> > > Previously, two things stopped Rust from using MODVERSIONS:
>
On 2025-01-13 12:19:36, Jan Kara wrote:
> On Thu 09-01-25 18:45:40, Andrey Albershteyn wrote:
> > From: Andrey Albershteyn
> >
> > Introduce getfsxattrat and setfsxattrat syscalls to manipulate inode
> > extended attributes/flags. The syscalls take parent directory FD and
> > path to the child to
On Mon, Jan 13, 2025, Marc Zyngier wrote:
> On Mon, 13 Jan 2025 18:58:45 +,
> Sean Christopherson wrote:
> >
> > On Mon, Jan 13, 2025, Marc Zyngier wrote:
> > > On Mon, 13 Jan 2025 15:44:28 +,
> > > Sean Christopherson wrote:
> > > >
> > > > On Sat, Jan 11, 2025, Marc Zyngier wrote:
> >
On Fri, Jan 10, 2025 at 03:07:30PM +0530, Athira Rajeev wrote:
> perf lock contention returns zero exit value even if the lock contention
> BPF setup failed.
>
> # ./perf lock con -b true
> libbpf: kernel BTF is missing at '/sys/kernel/btf/vmlinux', was
> CONFIG_DEBUG_INFO_BTF enabled?
> li
Alistair Popple wrote:
> Currently to map a DAX page the DAX driver calls vmf_insert_pfn. This
> creates a special devmap PTE entry for the pfn but does not take a
> reference on the underlying struct page for the mapping. This is
> because DAX page refcounts are treated specially, as indicated by
Alistair Popple wrote:
> PAGE_MAPPING_DAX_SHARED is the same as PAGE_MAPPING_ANON.
I think a bit a bit more detail is warranted, how about?
The page ->mapping pointer can have magic values like
PAGE_MAPPING_DAX_SHARED and PAGE_MAPPING_ANON for page owner specific
usage. In fact, PAGE_MAPPING_DAX
Alistair Popple wrote:
> Currently DAX folio/page reference counts are managed differently to
> normal pages. To allow these to be managed the same as normal pages
> introduce vmf_insert_folio_pud. This will map the entire PUD-sized folio
> and take references as it would for a normally mapped page
Alistair Popple wrote:
> At present mlock skips ptes mapping ZONE_DEVICE pages. A future change
> to remove pmd_devmap will allow pmd_trans_huge_lock() to return
> ZONE_DEVICE folios so make sure we continue to skip those.
>
> Signed-off-by: Alistair Popple
> Acked-by: David Hildenbrand
This lo
Alistair Popple wrote:
> Longterm pinning of FS DAX pages should already be disallowed by
> various pXX_devmap checks. However a future change will cause these
> checks to be invalid for FS DAX pages so make
> folio_is_longterm_pinnable() return false for FS DAX pages.
>
> Signed-off-by: Alistair
Hi Will,
On 2025/1/14 00:26, Will Deacon wrote:
On Wed, Jan 08, 2025 at 02:57:21PM +0800, Qi Zheng wrote:
Like other levels of page tables, also use mmu gather mechanism to free
p4d level page table.
Signed-off-by: Qi Zheng
Originally-by: Peter Zijlstra (Intel)
Reviewed-by: Kevin Brodsky
Cc
Alistair Popple wrote:
> The procfs mmu files such as smaps and pagemap currently ignore devdax and
> fsdax pages because these pages are considered special. A future change
> will start treating these as normal pages, meaning they can be exposed via
> smaps and pagemap.
>
> The only difference is
Alistair Popple wrote:
> Currently fs dax pages are considered free when the refcount drops to
> one and their refcounts are not increased when mapped via PTEs or
> decreased when unmapped. This requires special logic in mm paths to
> detect that these pages should not be properly refcounted, and t
The i.MX95 ENETC supports both MAC hash filter and MAC exact filter. MAC
hash filter is implenented through a 64-bits hash table to match against
the hashed addresses, PF and VFs each have two MAC hash tables, one is
for unicast and the other one is for multicast. But MAC exact filter is
shared bet
ENETC's MAC filter consists of hash MAC filter and exact MAC filter. Hash
MAC filter is a 64-entry hash table consisting of two 32-bit registers.
Exact MAC filter is implemented by configuring MAC address filter table
through command BD ring. The table is stored in ENETC's internal memory
and needs
Although only ENETC PF can access the MAC address filter table, the table
entries can specify MAC address filtering for one or more SIs based on
SI_BITMAP, which means that the table also supports MAC address filtering
for VFs.
Currently, only the ENETC v1 PF driver supports MAC address filtering.
Some NETC functionality is controlled using control messages sent to the
hardware using BD ring interface with 32B descriptor similar to transmit
BD ring used on ENETC. This BD ring interface is referred to as command
BD ring. It is used to configure functionality where the underlying
resources may
The command BD ring is used to configure functionality where the
underlying resources may be shared between different entities or being
too large to configure using direct registers (such as lookup tables).
Because the command BD and table formats of i.MX95 and LS1028A are very
different, the soft
This patch set adds the following features.
1. Compared with ENETC v1, the formats of tables and command BD of ENETC
v4 have changed significantly, and the two are not compatible. Therefore,
in order to support the NETC Table Management Protocol (NTMP) v2.0, we
introduced the netc-lib driver and ad
Thanks for the tip!
Doug Anderson 于2025年1月9日周四 01:33写道：
>
> Hi,
>
> On Sun, Dec 22, 2024 at 10:32 PM wzs wrote:
> >
> > Hello,
> > when fuzzing the Linux kernel,
> > I triggered many "watch: BUG: soft lockup" warnings.
> > I am not sure whether this is an issue with the kernel or with the
> > fu
Receive side scaling (RSS) is a network driver technology that enables
the efficient distribution of network receive processing across multiple
CPUs in multiprocessor systems. Therefore, it is better to enable RSS by
default so that the CPU load can be balanced and network performance can
be improv
Since the VLAN hash filter of ENETC v1 and v4 is the basically same, the
only difference is the offset of the VLAN hash filter registers. So, the
.set_si_vlan_hash_filter() hook is added to struct enetc_pf_ops to set
the registers of the corresponding platform. In addition, the common VLAN
hash fil
Add VLAN hash filter support for i.MX95 ENETC PF. If VLAN filtering is
disabled, then VLAN promiscuous mode will be enabled, which means that
PF qualifies for reception of all VLAN tags.
Signed-off-by: Wei Fang
---
.../net/ethernet/freescale/enetc/enetc4_hw.h | 4
.../net/ethernet/freesca
Add internal loopback support for i.MX95 ENETC PF, the default loopback
mode is MAC level loopback, the MAC Tx data is looped back onto the Rx.
The MAC interface runs at a fixed 1:8 ratio of NETC clock in MAC-level
loopback mode, with no dependency on Tx clock.
Signed-off-by: Wei Fang
---
.../ne
Add Receive side scaling (RSS) support for i.MX95 ENETC PF to improve the
network performance and balance the CPU loading. In addition, since both
ENETC v1 and ENETC v4 only support the toeplitz algorithm, so a check for
hfunc was added.
Signed-off-by: Wei Fang
---
drivers/net/ethernet/freescale
For ENETC, each SI has a corresponding VLAN hash table. That is to say,
both PF and VFs can support VLAN filter. However, currently only ENETC v1
PF driver supports VLAN filter. In order to make i.MX95 ENETC (v4) PF and
VF drivers also support VLAN filter, some related macros are moved from
enetc_p
Both ENETC v1 and v4 support Receive Side Scaling (RSS), but the offset
of the RSS key registers is different. In order to make enetc_get_rxfh()
and enetc_set_rxfh() be reused by ENETC v4, the .set_rss_key() and
.get_rss_key() interfaces are added to enect_pf_ops.
Signed-off-by: Wei Fang
---
dri
Add new file ntmp.h. to ENETC driver.
Signed-off-by: Wei Fang
---
MAINTAINERS | 1 +
1 file changed, 1 insertion(+)
diff --git a/MAINTAINERS b/MAINTAINERS
index 1579124ef426..ac28154f7eb5 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -9099,6 +9099,7 @@ F:
Documentation/devicetree/bindin
While working on implementing user access validation on powerpc
I got the following warnings on a pmac32_defconfig build:
CC fs/select.o
fs/select.o: warning: objtool: sys_pselect6+0x1bc: redundant UACCESS
disable
fs/select.o: warning: objtool: sys_pselect6_time32+0
On 1/13/2025 10:09 AM, Chao Gao wrote:
On Fri, Jan 10, 2025 at 05:24:48PM -0800, Sean Christopherson wrote:
Add a kvm_run flag, KVM_RUN_NEEDS_COMPLETION, to communicate to userspace
that KVM_RUN needs to be re-executed prior to save/restore in order to
complete the instruction/operation that
There are two MQS instances on the i.MX943 platform.
The definition of bit positions in the control register are
different. In order to support these MQS modules, define
two compatible strings to distinguish them.
Shengjiu Wang (2):
ASoC: fsl_mqs: Add i.MX943 platform support
ASoC: dt-bindings
There are two MQS instances on the i.MX943 platform.
The definition of bit positions in the control register are
different. In order to support these MQS modules, define
two compatible strings to distinguish them.
As one instance is in the always-on domain, another is in the
wakeup domain, so the
There are two MQS instances on the i.MX943 platform.
The definition of bit positions in the control register are
different. In order to support these MQS modules, define
two compatible strings to distinguish them.
On i.MX943 one instance is in Always-on mix, another is in
Wakeup-mix.
Signed-off-b
From: Kajol Jain
The testcase uses check_extended_regs_support and
perf_get_platform_reg_mask function to check if the
platform has extended reg support. This will help to
check if sampling pmu selftest is enabled or not for
a given platform.
Signed-off-by: Kajol Jain
Signed-off-by: Athira Raje
Add check for power11 pvr in the selftest utility
functions. Selftests uses pvr value to check for platform
support inorder to run the tests. pvr is also used to
send the extended mask value to capture sampling registers.
Update some of the utility functions to use hwcap2 inorder
to return platfor
On Mon, Jan 13, 2025 at 11:04 AM Shengjiu Wang wrote:
>
> There are two MQS instances on the i.MX943 platform.
> The definition of bit positions in the control register are
> different. In order to support these MQS modules, define
> two compatible strings to distinguish them.
>
> Shengjiu Wang (2
On Mon, 13 Jan 2025 09:37:24 +0100, Christophe Leroy wrote:
> While working on implementing user access validation on powerpc
> I got the following warnings on a pmac32_defconfig build:
>
> CC fs/select.o
> fs/select.o: warning: objtool: sys_pselect6+0x1bc: redundant UACCESS
>
On Wed, Jan 08, 2025 at 02:57:25PM +0800, Qi Zheng wrote:
> Move pagetable_dtor() to __tlb_remove_table(), so that ptlock and page
> table pages can be freed together (regardless of whether RCU is used).
> This prevents the use-after-free problem where the ptlock is freed
> immediately but the page
On Mon, Jan 13, 2025 at 04:48:31PM +1100, Alistair Popple wrote:
> On Sun, Jan 12, 2025 at 06:49:40PM -0800, Darrick J. Wong wrote:
> > On Mon, Jan 13, 2025 at 11:57:18AM +1100, Alistair Popple wrote:
> > > On Fri, Jan 10, 2025 at 08:50:19AM -0800, Darrick J. Wong wrote:
> > > > On Fri, Jan 10, 202
PTRACE_SET_SYSCALL_INFO is a generic ptrace API that complements
PTRACE_GET_SYSCALL_INFO by letting the ptracer modify details of
system calls the tracee is blocked in.
This API allows ptracers to obtain and modify system call details
in a straightforward and architecture-agnostic way.
Current im
Bring syscall_set_return_value() in sync with syscall_get_error(),
and let upcoming ptrace/set_syscall_info selftest pass on powerpc.
This reverts commit 1b1a3702a65c ("powerpc: Don't negate error in
syscall_set_return_value()").
Signed-off-by: Dmitry V. Levin
---
arch/powerpc/include/asm/sysca
On Mon, Jan 13, 2025, Chao Gao wrote:
> On Fri, Jan 10, 2025 at 05:24:48PM -0800, Sean Christopherson wrote:
> >Add a kvm_run flag, KVM_RUN_NEEDS_COMPLETION, to communicate to userspace
> >that KVM_RUN needs to be re-executed prior to save/restore in order to
> >complete the instruction/operation t
These functions are going to be needed on all HAVE_ARCH_TRACEHOOK
architectures to implement PTRACE_SET_SYSCALL_INFO API.
This partially reverts commit 7962c2eddbfe ("arch: remove unused
function syscall_set_arguments()") by reusing some of old
syscall_set_arguments() implementations.
Signed-off-
Similar to syscall_set_arguments() that complements
syscall_get_arguments(), introduce syscall_set_nr()
that complements syscall_get_nr().
syscall_set_nr() is going to be needed along with
syscall_set_arguments() on all HAVE_ARCH_TRACEHOOK
architectures to implement PTRACE_SET_SYSCALL_INFO API.
S
Similar to the PowerMac3,1, the PowerBook6,7 is missing the #size-cells
property on the i2s node.
Depends-on: 045b14ca5c36 ("of: WARN on deprecated #address-cells/#size-cells
handling")
Signed-off-by: Andreas Schwab
---
arch/powerpc/kernel/prom_init.c | 4 ++--
1 file changed, 2 insertions(+),
Alistair Popple wrote:
> Prior to freeing a block file systems supporting FS DAX must check
> that the associated pages are both unmapped from user-space and not
> undergoing DMA or other access from eg. get_user_pages(). This is
> achieved by unmapping the file range and scanning the FS DAX
> page
Stephen Rothwell writes:
> Hi Michael,
>
> On Sat, 11 Jan 2025 10:57:38 +1100 Michael Ellerman
> wrote:
>>
>> Maddy is taking over the day-to-day maintenance of powerpc. I will still
>> be around to help, and as a backup.
>>
>> Re-order the main POWERPC list to put Maddy first to reflect that.
Alistair Popple wrote:
> Prior to freeing a block file systems supporting FS DAX must check
> that the associated pages are both unmapped from user-space and not
> undergoing DMA or other access from eg. get_user_pages(). This is
> achieved by unmapping the file range and scanning the FS DAX
> page
Alistair Popple wrote:
> Prior to any truncation operations file systems call
> dax_break_mapping() to ensure pages in the range are not under going
> DMA. Later DAX page-cache entries will be removed by
> truncate_folio_batch_exceptionals() in the generic page-cache code.
>
> However this makes i
Alistair Popple wrote:
> File systems call dax_break_mapping() prior to reallocating file
> system blocks to ensure the page is not undergoing any DMA or other
> accesses. Generally this is needed when a file is truncated to ensure
> that if a block is reallocated nothing is writing to it. However
On Fri, Jan 10, 2025 at 04:23:48PM +0100, Thomas Weißschuh wrote:
> The generic storage implementation provides the same features as the
> custom one. However it can be shared between architectures, making
> maintenance easier.
>
> Co-developed-by: Nam Cao
> Signed-off-by: Nam Cao
> Signed-off-b
On Mon, Jan 13, 2025 at 09:37:24AM +0100, Christophe Leroy wrote:
> While working on implementing user access validation on powerpc
> I got the following warnings on a pmac32_defconfig build:
>
> CC fs/select.o
> fs/select.o: warning: objtool: sys_pselect6+0x1bc: redundant UACCE
Hi Masahiro,
On Fri, Jan 10, 2025 at 6:26 PM Masahiro Yamada wrote:
>
> On Sat, Jan 4, 2025 at 2:37 AM Matthew Maurer wrote:
> >
> > From: Sami Tolvanen
> >
> > Previously, two things stopped Rust from using MODVERSIONS:
> > 1. Rust symbols are occasionally too long to be represented in the
> >
Alistair Popple wrote:
> Prior to freeing a block file systems supporting FS DAX must check
> that the associated pages are both unmapped from user-space and not
> undergoing DMA or other access from eg. get_user_pages(). This is
> achieved by unmapping the file range and scanning the FS DAX
> page
From: Abhishek Dubey
Add documentation to 'papr_hcalls.rst' describing the
input, output and return values of the H_HTM hcall as
per the internal specification.
v3 patch:
https://lore.kernel.org/linuxppc-dev/20240828085223.42177-3-ma...@linux.ibm.com/
Signed-off-by: Abhishek Dubey
Co-develo
From: Abhishek Dubey
Define macros and wrapper functions to handle
H_HTM (Hardware Trace Macro) hypervisor call.
H_HTM is new HCALL added to export data from
Hardware Trace Macro (HTM) function.
v3 patch:
https://lore.kernel.org/linuxppc-dev/20240828085223.42177-1-ma...@linux.ibm.com/
Signed
From: Abhishek Dubey
This patch adds debugfs interface to export Hardware Trace Macro (HTM)
function data in a LPAR. New hypervisor call "H_HTM" has been
defined to setup, configure, control and dump the HTM data.
This patch supports only dumping of HTM data in a LPAR.
New debugfs folder called "
> On 13 Jan 2025, at 4:10 PM, adu...@linux.ibm.com wrote:
>
> From: Abhishek Dubey
>
> This patch adds debugfs interface to export Hardware Trace Macro (HTM)
> function data in a LPAR. New hypervisor call "H_HTM" has been
> defined to setup, configure, control and dump the HTM data.
> This pa
Thorsten Blum writes:
> Remove hard-coded strings by using the str_yes_no() helper function.
>
> Signed-off-by: Thorsten Blum
> ---
> arch/powerpc/kernel/fadump.c | 6 ++
> 1 file changed, 2 insertions(+), 4 deletions(-)
In fadump.c file we have implicit include of string_choices.h i.e.
On Sat, Jan 11, 2025, Marc Zyngier wrote:
> On Sat, 11 Jan 2025 01:24:48 +,
> Sean Christopherson wrote:
> >
> > Add a kvm_run flag, KVM_RUN_NEEDS_COMPLETION, to communicate to userspace
> > that KVM_RUN needs to be re-executed prior to save/restore in order to
> > complete the instruction/op
On Fri, Jan 10, 2025 at 01:58:48PM +, Alexandru Elisei wrote:
> Newer architecture features are supported by qemu TCG on newer CPUs. When
> writing a test for such architecture features, it is necessary to pass the
> correct -cpu argument to qemu. Make it easier on users and test authors
> alik
On Fri, Jan 10, 2025 at 01:58:46PM +, Alexandru Elisei wrote:
> The help text for the ./configure --processor option says:
>
> --processor=PROCESSOR processor to compile for (cortex-a57)
>
> but, unlike arm, the build system does not pass a -mcpu argument to the
> compiler. Fix it, and b
On Fri, Jan 10, 2025 at 01:58:44PM +, Alexandru Elisei wrote:
> $arch, on arm64, defaults to 'aarch64', and later in the script is replaced
> by 'arm64'. Intentional or not, document that the name 'aarch64' is also
> supported when configuring for the arm64 architecture. This has been the
> cas
On Mon, Jan 06, 2025 at 01:25:32PM -0800, Namhyung Kim wrote:
> On Fri, Dec 27, 2024 at 04:18:32PM +0530, Athira Rajeev wrote:
> >
> >
> > > On 23 Dec 2024, at 7:28 PM, Athira Rajeev
> > > wrote:
> > >
> > > When kernel is built without debuginfo, running perf record with
> > > --off-cpu resul
On Fri, Jan 10, 2025 at 01:58:47PM +, Alexandru Elisei wrote:
> For arm64, newer architecture features are supported only on newer CPUs.
> Instead of expecting the user to know which CPU model supports which
> feature when using the TCG accelerator for qemu, let's make it easier and
> add suppo
On Sun, Jan 12, 2025 at 02:39:03PM +0100, Krzysztof Kozlowski wrote:
> Use syscon_regmap_lookup_by_phandle_args() which is a wrapper over
> syscon_regmap_lookup_by_phandle() combined with getting the syscon
> argument. Except simpler code this annotates within one line that given
> phandle has arg
On 1/10/25 13:58, Alexandru Elisei wrote:
> (CC'ing everyone from MAINTAINERS because I'm touching configure)
>
> Vladimir sent a test for MTE [1], which didn't work on the default -cpu
> model, cortex-a57, because that CPU didn't implement MTE. There were two
> options to get it working:
>
> 1.
From: Abhishek Dubey
This patch adds debugfs interface to export Hardware Trace Macro (HTM)
function data in a LPAR. New hypervisor call "H_HTM" has been
defined to setup, configure, control and dump the HTM data.
This patch supports only dumping of HTM data in a LPAR.
New debugfs folder called "
From: Abhishek Dubey
Define macros and wrapper functions to handle
H_HTM (Hardware Trace Macro) hypervisor call.
H_HTM is new HCALL added to export data from
Hardware Trace Macro (HTM) function.
v3 patch:
https://lore.kernel.org/linuxppc-dev/20240828085223.42177-1-ma...@linux.ibm.com/
Signed
From: Abhishek Dubey
Add documentation to 'papr_hcalls.rst' describing the
input, output and return values of the H_HTM hcall as
per the internal specification.
v3 patch:
https://lore.kernel.org/linuxppc-dev/20240828085223.42177-3-ma...@linux.ibm.com/
Signed-off-by: Abhishek Dubey
Co-develo
On 1/10/25 10:43, Athira Rajeev wrote:
> perftool-testsuite_probe fails in test_adding_kernel as below:
> Regexp not found: "probe:inode_permission_11"
> -- [ FAIL ] -- perf_probe :: test_adding_kernel :: force-adding probes
> ::
> second probe adding (with force) (output rege
On 31/12/24 03:11, Thorsten Blum wrote:
Remove hard-coded strings by using the str_yes_no() helper function.
Signed-off-by: Thorsten Blum
---
arch/powerpc/kernel/fadump.c | 6 ++
1 file changed, 2 insertions(+), 4 deletions(-)
diff --git a/arch/powerpc/kernel/fadump.c b/arch/powerpc
Alistair Popple wrote:
> Device DAX pages are currently not reference counted when mapped,
> instead relying on the devmap PTE bit to ensure mapping code will not
> get/put references. This requires special handling in various page
> table walkers, particularly GUP, to manage references on the
> un
> On 13 Jan 2025, at 8:36 PM, Arnaldo Carvalho de Melo wrote:
>
> On Mon, Jan 13, 2025 at 11:21:24AM +0100, Veronika Molnarova wrote:
>> On 1/10/25 10:43, Athira Rajeev wrote:
>>> But if there are other probes in the system, the log will
>>> contain reference to other existing probe too. Hence
> On 13 Jan 2025, at 8:59 PM, Arnaldo Carvalho de Melo wrote:
>
> On Mon, Jan 06, 2025 at 01:25:32PM -0800, Namhyung Kim wrote:
>> On Fri, Dec 27, 2024 at 04:18:32PM +0530, Athira Rajeev wrote:
>>>
>>>
On 23 Dec 2024, at 7:28 PM, Athira Rajeev
wrote:
When kernel is bui
Memory protection keys (pkeys) uapi has two macros for pkeys restrictions:
- PKEY_DISABLE_ACCESS 0x1
- PKEY_DISABLE_WRITE 0x2
with implicit literal value of 0x0 that means "unrestricted". Code that
works with pkeys has to use this literal value when implying that a pkey
imposes no restrictions
Add PKEY_UNRESTRICTED macro to mman.h and use it in selftests.
For context, this change will also allow for more consistent update of the
Glibc manual which in turn will help with introducing memory protection
keys on AArch64 targets.
Applies to 5bc55a333a2f (tag: v6.13-rc7).
Note that I couldn'
Replace literal 0 with macro PKEY_UNRESTRICTED where pkey_*() functions
are used in mm selftests for memory protection keys for ppc target.
Signed-off-by: Yury Khrustalev
Suggested-by: Kevin Brodsky
Reviewed-by: Kevin Brodsky
---
Note that I couldn't build these tests so I would appreciate if
Replace literal 0 with macro PKEY_UNRESTRICTED where pkey_*() functions
are used in mm selftests for memory protection keys.
Signed-off-by: Yury Khrustalev
Suggested-by: Joey Gouly
Acked-by: Dave Hansen
---
tools/testing/selftests/mm/mseal_test.c| 6 +++---
tools/testing/selftests/
On Mon, Jan 13, 2025, Marc Zyngier wrote:
> On Mon, 13 Jan 2025 15:44:28 +,
> Sean Christopherson wrote:
> >
> > On Sat, Jan 11, 2025, Marc Zyngier wrote:
> > > On Sat, 11 Jan 2025 01:24:48 +,
> > > Sean Christopherson wrote:
> > > >
> > > > Add a kvm_run flag, KVM_RUN_NEEDS_COMPLETION,
On Wed, Jan 08, 2025 at 02:57:21PM +0800, Qi Zheng wrote:
> Like other levels of page tables, also use mmu gather mechanism to free
> p4d level page table.
>
> Signed-off-by: Qi Zheng
> Originally-by: Peter Zijlstra (Intel)
> Reviewed-by: Kevin Brodsky
> Cc: linux-arm-ker...@lists.infradead.org
From: Abhishek Dubey
Define macros and wrapper functions to handle
H_HTM (Hardware Trace Macro) hypervisor call.
H_HTM is new HCALL added to export data from
Hardware Trace Macro (HTM) function.
Signed-off-by: Abhishek Dubey
Co-developed-by: Madhavan Srinivasan
Signed-off-by: Madhavan Srinivas
Le 13/01/2025 à 18:10, Dmitry V. Levin a écrit :
Bring syscall_set_return_value() in sync with syscall_get_error(),
and let upcoming ptrace/set_syscall_info selftest pass on powerpc.
This reverts commit 1b1a3702a65c ("powerpc: Don't negate error in
syscall_set_return_value()").
There is a c
On Mon, Jan 13, 2025 at 06:34:44PM +0100, Christophe Leroy wrote:
> Le 13/01/2025 à 18:10, Dmitry V. Levin a écrit :
> > Bring syscall_set_return_value() in sync with syscall_get_error(),
> > and let upcoming ptrace/set_syscall_info selftest pass on powerpc.
> >
> > This reverts commit 1b1a3702a65
On Mon, 13 Jan 2025 15:44:28 +,
Sean Christopherson wrote:
>
> On Sat, Jan 11, 2025, Marc Zyngier wrote:
> > On Sat, 11 Jan 2025 01:24:48 +,
> > Sean Christopherson wrote:
> > >
> > > Add a kvm_run flag, KVM_RUN_NEEDS_COMPLETION, to communicate to userspace
> > > that KVM_RUN needs to b
On Mon, 13 Jan 2025 18:58:45 +,
Sean Christopherson wrote:
>
> On Mon, Jan 13, 2025, Marc Zyngier wrote:
> > On Mon, 13 Jan 2025 15:44:28 +,
> > Sean Christopherson wrote:
> > >
> > > On Sat, Jan 11, 2025, Marc Zyngier wrote:
> > > > On Sat, 11 Jan 2025 01:24:48 +,
> > > > Sean Chri
From: Abhishek Dubey
This patch adds debugfs interface to export Hardware Trace Macro (HTM)
function data in a LPAR. New hypervisor call "H_HTM" has been
defined to setup, configure, control and dump the HTM data.
This patch supports only dumping of HTM data in a LPAR.
New debugfs folder called "
From: Abhishek Dubey
Add documentation to 'papr_hcalls.rst' describing the
input, output and return values of the H_HTM hcall as
per the internal specification.
Signed-off-by: Abhishek Dubey
Co-developed-by: Madhavan Srinivasan
Signed-off-by: Madhavan Srinivasan
Reviewed-by: Athira Rajeev
--
From: Abhishek Dubey
Define macros and wrapper functions to handle
H_HTM (Hardware Trace Macro) hypervisor call.
H_HTM is new HCALL added to export data from
Hardware Trace Macro (HTM) function.
Signed-off-by: Abhishek Dubey
Co-developed-by: Madhavan Srinivasan
Signed-off-by: Madhavan Srinivas
On Mon, 13 Jan 2025 17:03:19 +0800, Shengjiu Wang wrote:
> There are two MQS instances on the i.MX943 platform.
> The definition of bit positions in the control register are
> different. In order to support these MQS modules, define
> two compatible strings to distinguish them.
>
> Shengjiu Wang (
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