The next push to xen.git#staging will trigger a build failure in the refreshed
Leap docker image.
For some reason HAS_CC_CET_IBT will evaluate to true. I think the significant
change is the binutils upgrade from 2.37 to 2.39 in November 2022.
The comment indicates the combination of gcc7 and
The diffutils package is a hard requirement for building xen.
It was dropped from the Tumbleweed base image in the past 12 months.
Building with --enable-docs does now require the gs tool.
Add both packages to the suse dockerfiles.
Signed-off-by: Olaf Hering
---
On Sat, 29 Apr 2023, Stefano Stabellini wrote:
> Your guess was correct. I have done more bisecting today. The culprit is
> the following commit (I reverted only this commit and ran 25 tests
> successfully, usually it fails in less than 5):
>
> e522c98c3tools: Refactor console/io.c to avoid
Hi Vishal,
kernel test robot noticed the following build errors:
[auto build test ERROR on akpm-mm/mm-everything]
[also build test ERROR on linus/master next-20230428]
[cannot apply to s390/features powerpc/next powerpc/fixes geert-m68k/for-next
geert-m68k/for-linus v6.3]
[If your patch is
Hi Vishal,
kernel test robot noticed the following build errors:
[auto build test ERROR on akpm-mm/mm-everything]
[also build test ERROR on linus/master next-20230428]
[cannot apply to s390/features powerpc/next powerpc/fixes geert-m68k/for-next
geert-m68k/for-linus v6.3]
[If your patch is
flight 180497 linux-linus real [real]
flight 180499 linux-linus real-retest [real]
http://logs.test-lab.xenproject.org/osstest/logs/180497/
http://logs.test-lab.xenproject.org/osstest/logs/180499/
Regressions :-(
Tests which did not succeed and are blocking,
including tests which could not be
On Fri, 14 Apr 2023 16:44:55 PDT (-0700), t...@linutronix.de wrote:
Switch to the CPU hotplug core state tracking and synchronization
mechanim. No functional change intended.
Signed-off-by: Thomas Gleixner
Cc: Paul Walmsley
Cc: Palmer Dabbelt
Cc: linux-ri...@lists.infradead.org
---
flight 180496 xen-unstable real [real]
flight 180498 xen-unstable real-retest [real]
http://logs.test-lab.xenproject.org/osstest/logs/180496/
http://logs.test-lab.xenproject.org/osstest/logs/180498/
Failures :-/ but no regressions.
Tests which are failing intermittently (not blocking):
On Mon, 01 May 2023 12:28:24 PDT (-0700), vishal.mo...@gmail.com wrote:
As part of the conversions to replace pgtable constructor/destructors with
ptdesc equivalents, convert various page table functions to use ptdescs.
Some of the functions use the *get*page*() helper functions. Convert
these
When creating a domU, but the creation fails, there is a corner case that may
lead to a crash in the null scheduler when running a debug build of Xen.
(XEN)
(XEN) Panic on CPU 0:
(XEN) Assertion 'npc->unit == unit' failed at common/sched/null.c:379
(XEN)
From: Rahul Singh
Signed-off-by: Rahul Singh
Signed-off-by: Stewart Hildebrand
---
downstream->v1:
* rebase
* move 2 replacements of
s/dt_device_set_protected(dev_to_dt(dev))/device_set_protected(dev)/
from this commit to ("xen/arm: Move is_protected flag to struct device")
so as to not
From: Rahul Singh
Signed-off-by: Rahul Singh
Signed-off-by: Stewart Hildebrand
---
downstream->v1:
* rebase
* move 2 replacements of
s/dt_device_set_protected(dev_to_dt(dev))/device_set_protected(dev)/
from this commit to ("xen/arm: Move is_protected flag to struct device")
so as to not
From: Oleksandr Andrushchenko
Signed-off-by: Oleksandr Tyshchenko
Signed-off-by: Oleksandr Andrushchenko
Signed-off-by: Stewart Hildebrand
---
downstream->v1:
* wrap unused function in #ifdef 0
* remove the remove_device() stub since it was submitted separately to the list
[XEN][PATCH v5
From: Oleksandr Tyshchenko
The main purpose of this patch is to add a way to register PCI device
(which is behind the IOMMU) using the generic PCI-IOMMU DT bindings [1]
before assigning that device to a domain.
This behaves in almost the same way as existing iommu_add_dt_device API,
the
From: Oleksandr Tyshchenko
On Arm we need to parse DT PCI-IOMMU specifier and provide it to
the driver (for describing the relationship between PCI devices
and IOMMUs) before adding a device to it.
Also clarify the check of the return value as iommu_add_pci_device
can return >0 if a device
From: Oleksandr Tyshchenko
Move code for processing DT IOMMU specifier to a separate helper.
This helper will be re-used for adding PCI devices by the subsequent
patches as we will need exact the same actions for processing
DT PCI-IOMMU specifier.
While at it introduce NO_IOMMU to avoid magic
From: Oleksandr Tyshchenko
This flag will be re-used for PCI devices by the subsequent
patches.
Signed-off-by: Oleksandr Tyshchenko
Signed-off-by: Stewart Hildebrand
---
downstream->v1:
* rebase
* s/dev_node->is_protected/dev_node->dev.is_protected/ in smmu.c
*
This series introduces SMMU handling for PCIe passthrough on ARM. These patches
are independent from (and don't depend on) the vPCI reference counting/locking
work in progress, and should be able to be upstreamed independently. I have
cherry-picked them from various downstream branches, rebased,
Part of the conversions to replace pgtable constructor/destructors with
ptdesc equivalents. Also cleans up some spacing issues.
Signed-off-by: Vishal Moola (Oracle)
---
arch/sh/include/asm/pgalloc.h | 9 +
1 file changed, 5 insertions(+), 4 deletions(-)
diff --git
set-cpufreq-hwp allows setting the Hardware P-State (HWP) parameters.
It can be run on all or just a single cpu. There are presets of
balance, powersave & performance. Those can be further tweaked by
param:val arguments as explained in the usage description.
Parameter names are just checked to
Signed-off-by: Jason Andryuk
Acked-by: Henry Wang
---
v3:
Position under existing Added section
Add Henry's Ack
v2:
Add blank line
---
CHANGELOG.md | 1 +
1 file changed, 1 insertion(+)
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 5dbf8b06d7..2eb9e2cfd0 100644
--- a/CHANGELOG.md
+++
As part of the conversions to replace pgtable constructor/destructors with
ptdesc equivalents, convert various page table functions to use ptdescs.
Some of the functions use the *get*page*() helper functions. Convert
these to use ptdesc_alloc() and ptdesc_address() instead to help
standardize
Part of the conversions to replace pgtable pte constructor/destructors with
ptdesc equivalents.
Signed-off-by: Vishal Moola (Oracle)
---
arch/sparc/mm/srmmu.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/arch/sparc/mm/srmmu.c b/arch/sparc/mm/srmmu.c
index
As part of the conversions to replace pgtable constructor/destructors with
ptdesc equivalents, convert various page table functions to use ptdescs.
Some of the functions use the *get*page*() helper functions. Convert
these to use ptdesc_alloc() and ptdesc_address() instead to help
standardize
Part of the conversions to replace pgtable constructor/destructors with
ptdesc equivalents. Also cleans up some spacing issues.
Signed-off-by: Vishal Moola (Oracle)
---
arch/um/include/asm/pgalloc.h | 18 +-
1 file changed, 9 insertions(+), 9 deletions(-)
diff --git
Part of the conversions to replace pgtable constructor/destructors with
ptdesc equivalents.
Signed-off-by: Vishal Moola (Oracle)
---
arch/openrisc/include/asm/pgalloc.h | 8
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/arch/openrisc/include/asm/pgalloc.h
As part of the conversions to replace pgtable constructor/destructors with
ptdesc equivalents, convert various page table functions to use ptdescs.
Some of the functions use the *get*page*() helper functions. Convert
these to use ptdesc_alloc() and ptdesc_address() instead to help
standardize
As part of the conversions to replace pgtable constructor/destructors with
ptdesc equivalents, convert various page table functions to use ptdescs.
Some of the functions use the *get*page*() helper functions. Convert
these to use ptdesc_alloc() and ptdesc_address() instead to help
standardize
Part of the conversions to replace pgtable constructor/destructors with
ptdesc equivalents.
Signed-off-by: Vishal Moola (Oracle)
---
arch/nios2/include/asm/pgalloc.h | 8
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/arch/nios2/include/asm/pgalloc.h
As part of the conversions to replace pgtable constructor/destructors with
ptdesc equivalents, convert various page table functions to use ptdescs.
late_alloc() also uses the __get_free_pages() helper function. Convert
this to use ptdesc_alloc() and ptdesc_address() instead to help
standardize
Part of the conversions to replace pgtable constructor/destructors with
ptdesc equivalents.
Signed-off-by: Vishal Moola (Oracle)
---
arch/csky/include/asm/pgalloc.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/csky/include/asm/pgalloc.h
As part of the conversions to replace pgtable constructor/destructors with
ptdesc equivalents, convert various page table functions to use ptdescs.
Signed-off-by: Vishal Moola (Oracle)
---
arch/arm64/include/asm/tlb.h | 14 --
arch/arm64/mm/mmu.c | 7 ---
2 files
Allow cpuid_parse to be re-used without terminating xenpm. HWP will
re-use it to optionally parse a cpuid. Unlike other uses of
cpuid_parse, parse_hwp_opts will take a variable number of arguments and
cannot just check argc.
Signed-off-by: Jason Andryuk
---
v2:
Retained because cpuid_parse
As part of the conversions to replace pgtable constructor/destructors with
ptdesc equivalents, convert various page table functions to use ptdescs.
Signed-off-by: Vishal Moola (Oracle)
---
arch/sparc/mm/init_64.c | 17 +
1 file changed, 9 insertions(+), 8 deletions(-)
diff
In order to split struct ptdesc from struct page, convert various
functions to use ptdescs.
Some of the functions use the *get*page*() helper functions. Convert
these to use ptdesc_alloc() and ptdesc_address() instead to help
standardize page tables further.
Signed-off-by: Vishal Moola (Oracle)
Part of the conversions to replace pgtable constructor/destructors with
ptdesc equivalents.
Signed-off-by: Vishal Moola (Oracle)
---
arch/hexagon/include/asm/pgalloc.h | 8
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/arch/hexagon/include/asm/pgalloc.h
These functions are no longer necessary. Remove them and cleanup
Documentation referencing them.
Signed-off-by: Vishal Moola (Oracle)
---
Documentation/mm/split_page_table_lock.rst| 12 +--
.../zh_CN/mm/split_page_table_lock.rst| 14 ++---
include/linux/mm.h
Add xc_set_cpufreq_hwp to allow calling xen_systctl_pm_op
SET_CPUFREQ_HWP.
Signed-off-by: Jason Andryuk
---
v2:
Mark xc_set_hwp_para_t const
---
tools/include/xenctrl.h | 4
tools/libs/ctrl/xc_pm.c | 18 ++
2 files changed, 22 insertions(+)
diff --git
Add SET_CPUFREQ_HWP xen_sysctl_pm_op to set HWP parameters. The sysctl
supports setting multiple values simultaneously as indicated by the
set_params bits. This allows atomically applying new HWP configuration
via a single wrmsr.
XEN_SYSCTL_HWP_SET_PRESET_BALANCE/PERFORMANCE/POWERSAVE provide
Print HWP-specific parameters. Some are always present, but others
depend on hardware support.
Signed-off-by: Jason Andryuk
---
v2:
Style fixes
Declare i outside loop
Replace repearted hardware/configured limits with spaces
Fixup for hw_ removal
Use XEN_HWP_GOVERNOR
Use
Expose the hwp_para fields through libxc.
Signed-off-by: Jason Andryuk
---
tools/include/xenctrl.h | 2 ++
1 file changed, 2 insertions(+)
diff --git a/tools/include/xenctrl.h b/tools/include/xenctrl.h
index 05967ecc92..437001d713 100644
--- a/tools/include/xenctrl.h
+++
When using HWP, some of the returned data is not applicable. In that
case, we should just omit it to avoid confusing the user. So switch to
printing the base and turbo frequencies since those are relevant to HWP.
Similarly, stop printing the CPU frequencies since those do not apply.
Extend xen_get_cpufreq_para to return hwp parameters. These match the
hardware rather closely.
We need the features bitmask to indicated fields supported by the actual
hardware.
The use of uint8_t parameters matches the hardware size. uint32_t
entries grows the sysctl_t past the build
>From the Intel SDM: "Hardware-Controlled Performance States (HWP), which
autonomously selects performance states while utilizing OS supplied
performance guidance hints."
Enable HWP to run in autonomous mode by poking the correct MSRs.
cpufreq=xen:hwp enables and cpufreq=xen:hwp=0 disables. The
Qubes testing of HWP support had a report of a laptop, Thinkpad X1
Carbon Gen 4 with a Skylake processor, locking up during boot when HWP
is enabled. A user found a kernel bug that seems to be the same issue:
https://bugzilla.kernel.org/show_bug.cgi?id=110941.
That bug was fixed by Linux commit
Export feature_detect as intel_feature_detect so it can be re-used by
HWP.
Signed-off-by: Jason Andryuk
---
v3:
Remove void * cast when calling intel_feature_detect
v2:
export intel_feature_detect with typed pointer
Move intel_feature_detect to acpi/cpufreq/cpufreq.h since the
declaration now
acpi-cpufreq scales the aperf/mperf measurements by max_freq, but HWP
needs to scale by base frequency. Settings max_freq to base_freq
"works" but the code is not obvious, and returning values to userspace
is tricky. Add an additonal perf_freq member which is used for scaling
aperf/mperf
For hwp, the standard governors are not usable, and only the internal
one is applicable. Add the cpufreq_governor_internal boolean to
indicate when an internal governor, like hwp-internal, will be used.
This is set during presmp_initcall, so that it can suppress governor
registration during
Hi,
Resending since I messed up the To: line. Sorry about that.
This patch series adds Hardware-Controlled Performance States (HWP) for
Intel processors to Xen.
v2 was only partially reviewed, so v3 is mostly a reposting of v2. In v2 &
v3, I think I addressed all comments for v1. I kept
In order to split struct ptdesc from struct page, convert various
functions to use ptdescs.
Some of the functions use the *get*page*() helper functions. Convert
these to use ptdesc_alloc() and ptdesc_address() instead to help
standardize page tables further.
Signed-off-by: Vishal Moola (Oracle)
As part of the conversions to replace pgtable constructor/destructors with
ptdesc equivalents, convert various page table functions to use ptdescs.
Some of the functions use the *get*page*() helper functions. Convert
these to use ptdesc_alloc() and ptdesc_address() instead to help
standardize
Creates ptdesc_pte_ctor(), ptdesc_pmd_ctor(), ptdesc_pte_dtor(), and
ptdesc_pmd_dtor() and make the original pgtable constructor/destructors
wrappers.
Signed-off-by: Vishal Moola (Oracle)
---
include/linux/mm.h | 56 ++
1 file changed, 42
As part of the conversions to replace pgtable constructor/destructors with
ptdesc equivalents, convert various page table functions to use ptdescs.
Some of the functions use the *get*page*() helper functions. Convert
these to use ptdesc_alloc() and ptdesc_address() instead to help
standardize
The page table members are now split out into their own ptdesc struct.
Remove them from struct page.
Signed-off-by: Vishal Moola (Oracle)
---
include/linux/mm_types.h | 14 --
include/linux/pgtable.h | 3 ---
2 files changed, 17 deletions(-)
diff --git a/include/linux/mm_types.h
This removes some direct accesses to struct page, working towards
splitting out struct ptdesc from struct page.
Signed-off-by: Vishal Moola (Oracle)
---
include/linux/mm.h | 10 +-
mm/memory.c| 4 ++--
2 files changed, 7 insertions(+), 7 deletions(-)
diff --git
In order to split struct ptdesc from struct page, convert various
functions to use ptdescs.
Signed-off-by: Vishal Moola (Oracle)
---
arch/powerpc/mm/book3s64/mmu_context.c | 10 +++---
arch/powerpc/mm/book3s64/pgtable.c | 32 +-
arch/powerpc/mm/pgtable-frag.c | 46
This removes some direct accesses to struct page, working towards
splitting out struct ptdesc from struct page.
Signed-off-by: Vishal Moola (Oracle)
---
include/linux/mm.h | 10 +-
1 file changed, 5 insertions(+), 5 deletions(-)
diff --git a/include/linux/mm.h b/include/linux/mm.h
This removes some direct accesses to struct page, working towards
splitting out struct ptdesc from struct page.
Signed-off-by: Vishal Moola (Oracle)
---
include/linux/mm.h | 14 +++---
1 file changed, 7 insertions(+), 7 deletions(-)
diff --git a/include/linux/mm.h b/include/linux/mm.h
This removes some direct accesses to struct page, working towards
splitting out struct ptdesc from struct page.
Signed-off-by: Vishal Moola (Oracle)
---
arch/x86/xen/mmu_pv.c | 2 +-
include/linux/mm.h| 14 +++---
2 files changed, 8 insertions(+), 8 deletions(-)
diff --git
This removes some direct accesses to struct page, working towards
splitting out struct ptdesc from struct page.
Signed-off-by: Vishal Moola (Oracle)
---
include/linux/mm.h | 6 +++---
mm/memory.c| 4 ++--
2 files changed, 5 insertions(+), 5 deletions(-)
diff --git a/include/linux/mm.h
Introduce utility functions setting the foundation for ptdescs. These
will also assist in the splitting out of ptdesc from struct page.
ptdesc_alloc() is defined to allocate new ptdesc pages as compound
pages. This is to standardize ptdescs by allowing for one allocation
and one free function, in
s390 currently uses _refcount to identify fragmented page tables.
The page table struct already has a member pt_frag_refcount used by
powerpc, so have s390 use that instead of the _refcount field as well.
This improves the safety for _refcount and the page table tracking.
This also allows us to
This removes some direct accesses to struct page, working towards
splitting out struct ptdesc from struct page.
Signed-off-by: Vishal Moola (Oracle)
---
include/linux/mm.h | 10 +-
1 file changed, 5 insertions(+), 5 deletions(-)
diff --git a/include/linux/mm.h b/include/linux/mm.h
Converts pmd_pgtable_page() to pmd_ptdesc() and all its callers. This
removes some direct accesses to struct page, working towards splitting
out struct ptdesc from struct page.
Signed-off-by: Vishal Moola (Oracle)
---
include/linux/mm.h | 8
1 file changed, 4 insertions(+), 4
No folio equivalents for page type operations have been defined, so
define them for later folio conversions.
Also changes the Page##uname macros to take in const struct page* since
we only read the memory here.
Signed-off-by: Vishal Moola (Oracle)
---
include/linux/page-flags.h | 20
Currently, page table information is stored within struct page. As part
of simplifying struct page, create struct ptdesc for page table
information.
Signed-off-by: Vishal Moola (Oracle)
---
include/linux/pgtable.h | 52 +
1 file changed, 52 insertions(+)
s390 uses page->index to keep track of page tables for the guest address
space. In an attempt to consolidate the usage of page fields in s390,
replace _pt_pad_2 with _pt_s390_gaddr to replace page->index in gmap.
This will help with the splitting of struct ptdesc from struct page, as
well as
The MM subsystem is trying to shrink struct page. This patchset
introduces a memory descriptor for page table tracking - struct ptdesc.
This patchset introduces ptdesc, splits ptdesc from struct page, and
converts many callers of page table constructor/destructors to use ptdescs.
Ptdesc is a
When using HWP, some of the returned data is not applicable. In that
case, we should just omit it to avoid confusing the user. So switch to
printing the base and turbo frequencies since those are relevant to HWP.
Similarly, stop printing the CPU frequencies since those do not apply.
>From the Intel SDM: "Hardware-Controlled Performance States (HWP), which
autonomously selects performance states while utilizing OS supplied
performance guidance hints."
Enable HWP to run in autonomous mode by poking the correct MSRs.
cpufreq=xen:hwp enables and cpufreq=xen:hwp=0 disables. The
acpi-cpufreq scales the aperf/mperf measurements by max_freq, but HWP
needs to scale by base frequency. Settings max_freq to base_freq
"works" but the code is not obvious, and returning values to userspace
is tricky. Add an additonal perf_freq member which is used for scaling
aperf/mperf
Export feature_detect as intel_feature_detect so it can be re-used by
HWP.
Signed-off-by: Jason Andryuk
---
v3:
Remove void * cast when calling intel_feature_detect
v2:
export intel_feature_detect with typed pointer
Move intel_feature_detect to acpi/cpufreq/cpufreq.h since the
declaration now
Hi,
This patch series adds Hardware-Controlled Performance States (HWP) for
Intel processors to Xen.
v2 was only partially reviewed, so v3 is mostly a reposting of v2. In v2 &
v3, I think I addressed all comments for v1. I kept patch 11 "xenpm:
Factor out a non-fatal cpuid_parse variant", with
For hwp, the standard governors are not usable, and only the internal
one is applicable. Add the cpufreq_governor_internal boolean to
indicate when an internal governor, like hwp-internal, will be used.
This is set during presmp_initcall, so that it can suppress governor
registration during
On Fri, Apr 28, 2023 at 04:22:55PM +0200, Kevin Wolf wrote:
> Am 25.04.2023 um 19:27 hat Stefan Hajnoczi geschrieben:
> > This patch is part of an effort to remove the aio_disable_external()
> > API because it does not fit in a multi-queue block layer world where
> > many AioContexts may be
flight 180494 xen-unstable-smoke real [real]
http://logs.test-lab.xenproject.org/osstest/logs/180494/
Failures :-/ but no regressions.
Tests which did not succeed, but are not blocking:
test-amd64-amd64-libvirt 15 migrate-support-checkfail never pass
test-arm64-arm64-xl-xsm
flight 180493 linux-linus real [real]
flight 180495 linux-linus real-retest [real]
http://logs.test-lab.xenproject.org/osstest/logs/180493/
http://logs.test-lab.xenproject.org/osstest/logs/180495/
Regressions :-(
Tests which did not succeed and are blocking,
including tests which could not be
flight 180492 xen-unstable real [real]
http://logs.test-lab.xenproject.org/osstest/logs/180492/
Failures :-/ but no regressions.
Tests which are failing intermittently (not blocking):
test-amd64-amd64-xl-qemuu-win7-amd64 12 windows-install fail in 180484 pass in
180492
On 30/04/2023 11:42 pm, Marek Marczykowski-Górecki wrote:
> This made the pipeline to complete within 45 minutes. This isn't big
> improvement on its own, but should make adding more runners more
> beneficial. While looking at it in real time, most jobs were really
> waiting for available runners
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