In device_add(), dev_set_name() is called to allocate name, if it returns
error, the name need be freed. As comment of device_register() says, it
should use put_device() to give up the reference in the error path. So fix
this by calling put_device(), then the name can be freed in kobject_cleanup().
Fixes: f65c9bb3fb ("xen/pcpu: Xen physical cpus online/offline sys interface")
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Reviewed-by: Juergen Gross <jgross@suse.com>
Link: https://lore.kernel.org/r/20221110152441.401630-1-yangyingliang@huawei.com
Signed-off-by: Juergen Gross <jgross@suse.com>
strtobool() is the same as kstrtobool().
However, the latter is more used within the kernel.
In order to remove strtobool() and slightly simplify kstrtox.h, switch to
the other function name.
While at it, include the corresponding header file (<linux/kstrtox.h>)
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Link: https://lore.kernel.org/r/e91af3c8708af38b1c57e0a2d7eb9765dda0e963.1667336095.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Juergen Gross <jgross@suse.com>
xen_enable_sysenter() and xen_enable_syscall() can be simplified a lot.
While at it, switch to use cpu_feature_enabled() instead of
boot_cpu_has().
Signed-off-by: Juergen Gross <jgross@suse.com>
Commit 8714f7bcd3 ("xen/pv: add fault recovery control to pmu msr
accesses") introduced code resulting in a warning issued by the smatch
static checker, claiming to use an uninitialized variable.
This is a false positive, but work around the warning nevertheless.
Fixes: 8714f7bcd3 ("xen/pv: add fault recovery control to pmu msr accesses")
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
Currently, a grant ref is always based on the Xen page granularity
(4KB), and guest commonly uses the same page granularity.
But the guest may use a different page granularity (i.e 64KB).
So adopt the code to be able to deal with it.
Signed-off-by: Oleksandr Tyshchenko <oleksandr_tyshchenko@epam.com>
Acked-by: Stefano Stabellini <sstabellini@kernel.org>
Reviewed-by: Xenia Ragiadakou <burzalodowa@gmail.com>
Link: https://lore.kernel.org/r/20221008151013.2537826-3-olekstysh@gmail.com
Signed-off-by: Juergen Gross <jgross@suse.com>
Passed to xen_grant_dma_map_page() offset in the page
can be > PAGE_SIZE even if the guest uses the same page granularity
as Xen (4KB).
Before current patch, if such case happened we ended up providing
grants for the whole region in xen_grant_dma_map_page() which
was really unnecessary. The more, we ended up not releasing all
grants which represented that region in xen_grant_dma_unmap_page().
Current patch updates the code to be able to deal with such cases.
Signed-off-by: Oleksandr Tyshchenko <oleksandr_tyshchenko@epam.com>
Reviewed-by: Stefano Stabellini <sstabellini@kernel.org>
Reviewed-by: Xenia Ragiadakou <burzalodowa@gmail.com>
Link: https://lore.kernel.org/r/20221008151013.2537826-2-olekstysh@gmail.com
Signed-off-by: Juergen Gross <jgross@suse.com>
There is a spelling mistake in a Kconfig description. Fix it.
Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
Acked-by: Stefano Stabellini <sstabellini@kernel.org>
Link: https://lore.kernel.org/r/20221007203500.2756787-1-colin.i.king@gmail.com
Signed-off-by: Juergen Gross <jgross@suse.com>
Instead of always doing the safe variants for reading and writing MSRs
in Xen PV guests, make the behavior controllable via Kconfig option
and a boot parameter.
The default will be the current behavior, which is to always use the
safe variant.
Signed-off-by: Juergen Gross <jgross@suse.com>
Refactor and rename xen_read_msr_safe() and xen_write_msr_safe() to
support both cases of MSR accesses, safe ones and potentially GP-fault
generating ones.
This will prepare to no longer swallow GPs silently in xen_read_msr()
and xen_write_msr().
Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Jan Beulich <jbeulich@suse.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
The CPU vendor checks for pmu emulation are rather limited today, as
the assumption seems to be that only Intel and AMD are existing and/or
supported vendors.
Fix that by handling Centaur and Zhaoxin CPUs the same way as Intel,
and Hygon the same way as AMD.
While at it fix the return type of is_intel_pmu_msr().
Suggested-by: Jan Beulich <jbeulich@suse.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Jan Beulich <jbeulich@suse.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
Today pmu_msr_read() and pmu_msr_write() fall back to the safe variants
of read/write MSR in case the MSR access isn't emulated via Xen. Allow
the caller to select that faults should not be recovered from by passing
NULL for the error pointer.
Restructure the code to make it more readable.
Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Jan Beulich <jbeulich@suse.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
Use an x86-specific virtio_check_mem_acc_cb() for Xen in order to setup
the correct DMA ops.
Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Oleksandr Tyshchenko <oleksandr_tyshchenko@epam.com> # common code
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
With CONFIG_XEN_VIRTIO_FORCE_GRANT set the default backend domid to 0,
enabling to use xen_grant_dma_ops for those devices.
Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Oleksandr Tyshchenko <oleksandr_tyshchenko@epam.com>
Acked-by: Stefano Stabellini <sstabellini@kernel.org>
Signed-off-by: Juergen Gross <jgross@suse.com>
In order to prepare supporting other means than device tree for
setting up virtio devices under Xen, restructure the functions
xen_is_grant_dma_device() and xen_grant_setup_dma_ops() a little bit.
Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Oleksandr Tyshchenko <oleksandr_tyshchenko@epam.com>
Tested-by: Oleksandr Tyshchenko <oleksandr_tyshchenko@epam.com> # Arm64 only
Acked-by: Stefano Stabellini <sstabellini@kernel.org>
Signed-off-by: Juergen Gross <jgross@suse.com>
pcifront_try_connect() and pcifront_attach_devices() share a large
chunk of duplicated code for reading the config information from
Xenstore, which only differs regarding calling pcifront_rescan_root()
or pcifront_scan_root().
Put that code into a new sub-function. It is fine to always call
pcifront_rescan_root() from that common function, as it will fallback
to pcifront_scan_root() if the domain/bus combination isn't known
yet (and pcifront_scan_root() should never be called for an already
known domain/bus combination anyway). In order to avoid duplicate
messages for the fallback case move the check for domain/bus not known
to the beginning of pcifront_rescan_root().
While at it fix the error reporting in case the root-xx node had the
wrong format.
As the return value of pcifront_try_connect() and
pcifront_attach_devices() are not used anywhere make those functions
return void. As an additional bonus this removes the dubious return
of -EFAULT in case of an unexpected driver state.
Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Jason Andryuk <jandryuk@gmail.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
Prior to this commit, the gntdev driver code did not handle the
following scenario correctly with paravirtualized (PV) Xen domains:
* User process sets up a gntdev mapping composed of two grant mappings
(i.e., two pages shared by another Xen domain).
* User process munmap()s one of the pages.
* User process munmap()s the remaining page.
* User process exits.
In the scenario above, the user process would cause the kernel to log
the following messages in dmesg for the first munmap(), and the second
munmap() call would result in similar log messages:
BUG: Bad page map in process doublemap.test pte:... pmd:...
page:0000000057c97bff refcount:1 mapcount:-1 \
mapping:0000000000000000 index:0x0 pfn:...
...
page dumped because: bad pte
...
file:gntdev fault:0x0 mmap:gntdev_mmap [xen_gntdev] readpage:0x0
...
Call Trace:
<TASK>
dump_stack_lvl+0x46/0x5e
print_bad_pte.cold+0x66/0xb6
unmap_page_range+0x7e5/0xdc0
unmap_vmas+0x78/0xf0
unmap_region+0xa8/0x110
__do_munmap+0x1ea/0x4e0
__vm_munmap+0x75/0x120
__x64_sys_munmap+0x28/0x40
do_syscall_64+0x38/0x90
entry_SYSCALL_64_after_hwframe+0x61/0xcb
...
For each munmap() call, the Xen hypervisor (if built with CONFIG_DEBUG)
would print out the following and trigger a general protection fault in
the affected Xen PV domain:
(XEN) d0v... Attempt to implicitly unmap d0's grant PTE ...
(XEN) d0v... Attempt to implicitly unmap d0's grant PTE ...
As of this writing, gntdev_grant_map structure's vma field (referred to
as map->vma below) is mainly used for checking the start and end
addresses of mappings. However, with split VMAs, these may change, and
there could be more than one VMA associated with a gntdev mapping.
Hence, remove the use of map->vma and rely on map->pages_vm_start for
the original start address and on (map->count << PAGE_SHIFT) for the
original mapping size. Let the invalidate() and find_special_page()
hooks use these.
Also, given that there can be multiple VMAs associated with a gntdev
mapping, move the "mmu_interval_notifier_remove(&map->notifier)" call to
the end of gntdev_put_map, so that the MMU notifier is only removed
after the closing of the last remaining VMA.
Finally, use an atomic to prevent inadvertent gntdev mapping re-use,
instead of using the map->live_grants atomic counter and/or the map->vma
pointer (the latter of which is now removed). This prevents the
userspace from mmap()'ing (with MAP_FIXED) a gntdev mapping over the
same address range as a previously set up gntdev mapping. This scenario
can be summarized with the following call-trace, which was valid prior
to this commit:
mmap
gntdev_mmap
mmap (repeat mmap with MAP_FIXED over the same address range)
gntdev_invalidate
unmap_grant_pages (sets 'being_removed' entries to true)
gnttab_unmap_refs_async
unmap_single_vma
gntdev_mmap (maps the shared pages again)
munmap
gntdev_invalidate
unmap_grant_pages
(no-op because 'being_removed' entries are true)
unmap_single_vma (For PV domains, Xen reports that a granted page
is being unmapped and triggers a general protection fault in the
affected domain, if Xen was built with CONFIG_DEBUG)
The fix for this last scenario could be worth its own commit, but we
opted for a single commit, because removing the gntdev_grant_map
structure's vma field requires guarding the entry to gntdev_mmap(), and
the live_grants atomic counter is not sufficient on its own to prevent
the mmap() over a pre-existing mapping.
Link: https://github.com/QubesOS/qubes-issues/issues/7631
Fixes: ab31523c2f ("xen/gntdev: allow usermode to map granted pages")
Cc: stable@vger.kernel.org
Signed-off-by: M. Vefa Bicakci <m.v.b@runbox.com>
Reviewed-by: Juergen Gross <jgross@suse.com>
Link: https://lore.kernel.org/r/20221002222006.2077-3-m.v.b@runbox.com
Signed-off-by: Juergen Gross <jgross@suse.com>
Prior to this commit, if a grant mapping operation failed partially,
some of the entries in the map_ops array would be invalid, whereas all
of the entries in the kmap_ops array would be valid. This in turn would
cause the following logic in gntdev_map_grant_pages to become invalid:
for (i = 0; i < map->count; i++) {
if (map->map_ops[i].status == GNTST_okay) {
map->unmap_ops[i].handle = map->map_ops[i].handle;
if (!use_ptemod)
alloced++;
}
if (use_ptemod) {
if (map->kmap_ops[i].status == GNTST_okay) {
if (map->map_ops[i].status == GNTST_okay)
alloced++;
map->kunmap_ops[i].handle = map->kmap_ops[i].handle;
}
}
}
...
atomic_add(alloced, &map->live_grants);
Assume that use_ptemod is true (i.e., the domain mapping the granted
pages is a paravirtualized domain). In the code excerpt above, note that
the "alloced" variable is only incremented when both kmap_ops[i].status
and map_ops[i].status are set to GNTST_okay (i.e., both mapping
operations are successful). However, as also noted above, there are
cases where a grant mapping operation fails partially, breaking the
assumption of the code excerpt above.
The aforementioned causes map->live_grants to be incorrectly set. In
some cases, all of the map_ops mappings fail, but all of the kmap_ops
mappings succeed, meaning that live_grants may remain zero. This in turn
makes it impossible to unmap the successfully grant-mapped pages pointed
to by kmap_ops, because unmap_grant_pages has the following snippet of
code at its beginning:
if (atomic_read(&map->live_grants) == 0)
return; /* Nothing to do */
In other cases where only some of the map_ops mappings fail but all
kmap_ops mappings succeed, live_grants is made positive, but when the
user requests unmapping the grant-mapped pages, __unmap_grant_pages_done
will then make map->live_grants negative, because the latter function
does not check if all of the pages that were requested to be unmapped
were actually unmapped, and the same function unconditionally subtracts
"data->count" (i.e., a value that can be greater than map->live_grants)
from map->live_grants. The side effects of a negative live_grants value
have not been studied.
The net effect of all of this is that grant references are leaked in one
of the above conditions. In Qubes OS v4.1 (which uses Xen's grant
mechanism extensively for X11 GUI isolation), this issue manifests
itself with warning messages like the following to be printed out by the
Linux kernel in the VM that had granted pages (that contain X11 GUI
window data) to dom0: "g.e. 0x1234 still pending", especially after the
user rapidly resizes GUI VM windows (causing some grant-mapping
operations to partially or completely fail, due to the fact that the VM
unshares some of the pages as part of the window resizing, making the
pages impossible to grant-map from dom0).
The fix for this issue involves counting all successful map_ops and
kmap_ops mappings separately, and then adding the sum to live_grants.
During unmapping, only the number of successfully unmapped grants is
subtracted from live_grants. The code is also modified to check for
negative live_grants values after the subtraction and warn the user.
Link: https://github.com/QubesOS/qubes-issues/issues/7631
Fixes: dbe97cff7d ("xen/gntdev: Avoid blocking in unmap_grant_pages()")
Cc: stable@vger.kernel.org
Signed-off-by: M. Vefa Bicakci <m.v.b@runbox.com>
Acked-by: Demi Marie Obenour <demi@invisiblethingslab.com>
Reviewed-by: Juergen Gross <jgross@suse.com>
Link: https://lore.kernel.org/r/20221002222006.2077-2-m.v.b@runbox.com
Signed-off-by: Juergen Gross <jgross@suse.com>
As find_xen_grant_dma_data() is called from both interrupt and process
contexts, the access to xen_grant_dma_devices XArray must be protected
by xa_lock_irqsave to avoid deadlock scenario.
As XArray API doesn't provide xa_store_irqsave helper, call lockless
__xa_store directly and guard it externally.
Also move the storage of the XArray's entry to a separate helper.
Fixes: d6aca3504c ("xen/grant-dma-ops: Add option to restrict memory access under Xen")
Signed-off-by: Oleksandr Tyshchenko <oleksandr_tyshchenko@epam.com>
Reviewed-by: Stefano Stabellini <sstabellini@kernel.org>
Reviewed-by: Juergen Gross <jgross@suse.com>
Link: https://lore.kernel.org/r/20221005174823.1800761-3-olekstysh@gmail.com
Signed-off-by: Juergen Gross <jgross@suse.com>
Take page offset into the account when calculating the number of pages
to be granted.
Fixes: d6aca3504c ("xen/grant-dma-ops: Add option to restrict memory access under Xen")
Signed-off-by: Oleksandr Tyshchenko <oleksandr_tyshchenko@epam.com>
Reviewed-by: Stefano Stabellini <sstabellini@kernel.org>
Reviewed-by: Juergen Gross <jgross@suse.com>
Link: https://lore.kernel.org/r/20221005174823.1800761-2-olekstysh@gmail.com
Signed-off-by: Juergen Gross <jgross@suse.com>
There is a spelling mistake in the module description. Fix it.
Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
Reviewed-by: Juergen Gross <jgross@suse.com>
Link: https://lore.kernel.org/r/20221004160639.154421-1-colin.i.king@gmail.com
Signed-off-by: Juergen Gross <jgross@suse.com>
An HVM guest with linux stubdomain and 2 PCI devices failed to start as
libxl timed out waiting for the PCI devices to be added. It happens
intermittently but with some regularity. libxl wrote the two xenstore
entries for the devices, but then timed out waiting for backend state 4
(Connected) - the state stayed at 7 (Reconfiguring). (PCI passthrough
to an HVM with stubdomain is PV passthrough to the stubdomain and then
HVM passthrough with the QEMU inside the stubdomain.)
The stubdomain kernel never printed "pcifront pci-0: Installing PCI
frontend", so it seems to have missed state 4 which would have
called pcifront_try_connect() -> pcifront_connect_and_init_dma()
Have pcifront_detach_devices() special-case state Initialised and call
pcifront_connect_and_init_dma(). Don't use pcifront_try_connect()
because that sets the xenbus state which may throw off the backend.
After connecting, skip the remainder of detach_devices since none have
been initialized yet. When the backend switches to Reconfigured,
pcifront_attach_devices() will pick them up again.
Signed-off-by: Jason Andryuk <jandryuk@gmail.com>
Reviewed-by: Juergen Gross <jgross@suse.com>
Link: https://lore.kernel.org/r/20220829151536.8578-1-jandryuk@gmail.com
Signed-off-by: Juergen Gross <jgross@suse.com>
cause segfaults when lscpu accesses their representation in sysfs
- Fix for a race in the alternatives batch patching machinery when
kprobes are set
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Merge tag 'x86_urgent_for_v6.0' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fixes from Borislav Petkov:
- Add the respective UP last level cache mask accessors in order not to
cause segfaults when lscpu accesses their representation in sysfs
- Fix for a race in the alternatives batch patching machinery when
kprobes are set
* tag 'x86_urgent_for_v6.0' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/cacheinfo: Add a cpu_llc_shared_mask() UP variant
x86/alternative: Fix race in try_get_desc()
The pm_runtime_enable will increase power disable depth. Thus a
pairing decrement is needed on the error handling path to keep
it balanced according to context.
Fixes: 17f88151ff ("i2c: davinci: Add PM Runtime Support")
Signed-off-by: Zhang Qilong <zhangqilong3@huawei.com>
Reviewed-by: Bartosz Golaszewski <brgl@bgdev.pl>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
Document wakeup-source property. This fixes dtbs_check warnings
when building current Linux DTs:
"
arch/arm/boot/dts/stm32mp153c-dhcom-drc02.dtb: i2c@40015000: Unevaluated properties are not allowed ('wakeup-source' was unexpected)
"
Signed-off-by: Marek Vasut <marex@denx.de>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
Document interrupt-names property with "event" and "error" interrupt names.
This fixes dtbs_check warnings when building current Linux DTs:
"
arch/arm/boot/dts/stm32mp153c-dhcom-drc02.dtb: i2c@40015000: Unevaluated properties are not allowed ('interrupt-names' was unexpected)
"
Signed-off-by: Marek Vasut <marex@denx.de>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
Here are some tiny USB and Thunderbolt driver fixes and quirks, for
6.0-final.
Included in here are:
- 3 uas/usb-storage driver quirks to get the devices working
properly due to broken firmware images in them (they can not
run at high data rates, and are also throttled on other
operating systems because of this.)
- thunderbolt bugfix for plug event delays
- typec runtime warning removal
- dwc3 st driver bugfix. Note, a follow-on fix for this will
end up coming in for 6.1-rc1 as the developers are still
arguing over what the final solution will be, but this should
be sufficient for now.
All of these have been in linux-next with no reported problems.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-6.0-final' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB/Thunderbolt fixes from Greg KH:
"Here are some tiny USB and Thunderbolt driver fixes and quirks.
Included in here are:
- three uas/usb-storage driver quirks to get the devices working
properly due to broken firmware images in them (they can not run at
high data rates, and are also throttled on other operating systems
because of this)
- thunderbolt bugfix for plug event delays
- typec runtime warning removal
- dwc3 st driver bugfix. Note, a follow-on fix for this will end up
coming in for 6.1-rc1 as the developers are still arguing over what
the final solution will be, but this should be sufficient for now
All of these have been in linux-next with no reported problems"
* tag 'usb-6.0-final' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
uas: ignore UAS for Thinkplus chips
usb-storage: Add Hiksemi USB3-FW to IGNORE_UAS
uas: add no-uas quirk for Hiksemi usb_disk
usb: dwc3: st: Fix node's child name
usb: typec: ucsi: Remove incorrect warning
thunderbolt: Explicitly reset plug events delay back to USB4 spec value
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Merge tag 'media/v6.0-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media
Pull media fixes from Mauro Carvalho Chehab:
- some fixes for the v4l2 ioctl handler logic
- a fix for an out of bound access in the DVB videobuf2 handler
- three driver fixes (rkvdec, mediatek/vcodek and uvcvideo)
* tag 'media/v6.0-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media:
media: rkvdec: Disable H.264 error detection
media: mediatek: vcodec: Drop platform_get_resource(IORESOURCE_IRQ)
media: dvb_vb2: fix possible out of bound access
media: v4l2-ioctl.c: fix incorrect error path
media: v4l2-compat-ioctl32.c: zero buffer passed to v4l2_compat_get_array_args()
media: uvcvideo: Fix InterfaceProtocol for Quanta camera
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Merge tag 'mm-hotfixes-stable-2022-09-30' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Pull more hotfixes from Andrew Morton:
"One MAINTAINERS update, two MM fixes, both cc:stable"
The previous pull wasn't fated to be the last one..
* tag 'mm-hotfixes-stable-2022-09-30' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm:
damon/sysfs: fix possible memleak on damon_sysfs_add_target
mm: fix BUG splat with kvmalloc + GFP_ATOMIC
MAINTAINERS: drop entry to removed file in ARM/RISCPC ARCHITECTURE
When damon_sysfs_add_target couldn't find proper task, New allocated
damon_target structure isn't registered yet, So, it's impossible to free
new allocated one by damon_sysfs_destroy_targets.
By calling damon_add_target as soon as allocating new target, Fix this
possible memory leak.
Link: https://lkml.kernel.org/r/20220926160611.48536-1-sj@kernel.org
Fixes: a61ea561c8 ("mm/damon/sysfs: link DAMON for virtual address spaces monitoring")
Signed-off-by: Levi Yun <ppbuk5246@gmail.com>
Signed-off-by: SeongJae Park <sj@kernel.org>
Reviewed-by: SeongJae Park <sj@kernel.org>
Cc: <stable@vger.kernel.org> [5.17.x]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Commit c1fe8d054c ("ARM: riscpc: use GENERIC_IRQ_MULTI_HANDLER") removes
arch/arm/include/asm/hardware/entry-macro-iomd.S, but missed to adjust
MAINTAINERS.
Hence, ./scripts/get_maintainer.pl --self-test=patterns complains about a
broken reference.
Drop the file entry to the removed file in ARM/RISCPC ARCHITECTURE.
Link: https://lkml.kernel.org/r/20220919075255.386-1-lukas.bulwahn@gmail.com
Fixes: c1fe8d054c ("ARM: riscpc: use GENERIC_IRQ_MULTI_HANDLER")
Signed-off-by: Lukas Bulwahn <lukas.bulwahn@gmail.com>
Cc: Ard Biesheuvel <ardb@kernel.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Russell King <linux@armlinux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
- VCN 4.x and GC 11.x fixes, mostly around fw
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Merge tag 'drm-fixes-2022-10-01' of git://anongit.freedesktop.org/drm/drm
Pull drm fixes from Daniel Vetter:
"Some last minute amd fixes:
- VCN 4.x and GC 11.x fixes, mostly around fw"
* tag 'drm-fixes-2022-10-01' of git://anongit.freedesktop.org/drm/drm:
drm/amdgpu/gfx11: switch to amdgpu_gfx_rlc_init_microcode
drm/amdgpu: add helper to init rlc firmware
drm/amdgpu: add helper to init rlc fw in header v2_4
drm/amdgpu: add helper to init rlc fw in header v2_3
drm/amdgpu: add helper to init rlc fw in header v2_2
drm/amdgpu: add helper to init rlc fw in header v2_1
drm/amdgpu: add helper to init rlc fw in header v2_0
drm/amdgpu: save rlcv/rlcp ucode version in amdgpu_gfx
drm/amdgpu: Enable sram on vcn_4_0_2
drm/amdgpu: Enable VCN DPG for GC11_0_1
patches fix serious problems, for example, i.MX has an issue where
changing the NAND clk frequency hangs the system. On Allwinner H6 the
GPU is being overclocked which could lead to long term hardware damage.
And finally on some Broadcom SoCs the serial console stopped working
because the clk tree hierarchy description got broken by an inadvertant
DT node name change. That's fixed by using 'clock-output-names' to
generate a stable and unique name for clks so the framework can properly
link things up.
There's also a couple build fixes in here. One to fix CONFIG_OF=n builds
and one to avoid an array out of bounds bug that happens during clk
registration on microchip. I hope that KASAN would have found that OOB
problem, but probably KASAN wasn't attempted. Instead LLVM/clang
compilation caused an oops, while GCC didn't.
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Merge tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux
Pull clk driver fixes from Stephen Boyd:
"Here's the last batch of clk driver fixes for this release.
These patches fix serious problems, for example, i.MX has an issue
where changing the NAND clk frequency hangs the system. On Allwinner
H6 the GPU is being overclocked which could lead to long term hardware
damage.
And finally on some Broadcom SoCs the serial console stopped working
because the clk tree hierarchy description got broken by an
inadvertant DT node name change. That's fixed by using
'clock-output-names' to generate a stable and unique name for clks so
the framework can properly link things up.
There's also a couple build fixes in here. One to fix CONFIG_OF=n
builds and one to avoid an array out of bounds bug that happens during
clk registration on microchip. I hope that KASAN would have found that
OOB problem, but probably KASAN wasn't attempted. Instead LLVM/clang
compilation caused an oops, while GCC didn't"
* tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux:
clk: imx93: drop of_match_ptr
clk: iproc: Do not rely on node name for correct PLL setup
clk: sunxi-ng: h6: Fix default PLL GPU rate
clk: imx: imx6sx: remove the SET_RATE_PARENT flag for QSPI clocks
clk: microchip: mpfs: make the rtc's ahb clock critical
clk: microchip: mpfs: fix clk_cfg array bounds violation
clk: ingenic-tcu: Properly enable registers before accessing timers
- Fail the 'perf test record' entry on error, fixing a regression where just
setup stuff like allocating memory and not the actual things being tested failed.
- Fixup disabling of -Wdeprecated-declarations for the python scripting engine, the
previous attempt had a brown paper bag thinko.
- Fix branch stack sampling test to include sanity check for branch filter on PowerPC.
- Update is_ignored_symbol function to match the kernel ignored list, fixing running
the 'perf test' entry that compares resolving symbols from kallsyms to resolving from
vmlinux.
- Augment the data source type with ARM's neoverse_spe list, the previous code
was limited in its search resolving the data source.
- Fix some clang 5 variable set but unused cases.
- Get a perf cgroup more portably in BPF as the __builtin_preserve_enum_value builtin is
not available in older versions of clang. In those cases we can forgo BPF's CO-RE (Compile
Once, Run Everywhere).
- More Fixes for Intel's hybrid CPU model.
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Merge tag 'perf-tools-fixes-for-v6.0-2022-09-29' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux
Pull perf tools fixes from Arnaldo Carvalho de Melo:
- Fail the 'perf test record' entry on error, fixing a regression where
just setup stuff like allocating memory and not the actual things
being tested failed.
- Fixup disabling of -Wdeprecated-declarations for the python scripting
engine, the previous attempt had a brown paper bag thinko.
- Fix branch stack sampling test to include sanity check for branch
filter on PowerPC.
- Update is_ignored_symbol function to match the kernel ignored list,
fixing running the 'perf test' entry that compares resolving symbols
from kallsyms to resolving from vmlinux.
- Augment the data source type with ARM's neoverse_spe list, the
previous code was limited in its search resolving the data source.
- Fix some clang 5 variable set but unused cases.
- Get a perf cgroup more portably in BPF as the
__builtin_preserve_enum_value builtin is not available in older
versions of clang. In those cases we can forgo BPF's CO-RE (Compile
Once, Run Everywhere).
- More Fixes for Intel's hybrid CPU model.
* tag 'perf-tools-fixes-for-v6.0-2022-09-29' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux:
perf build: Fixup disabling of -Wdeprecated-declarations for the python scripting engine
perf tests mmap-basic: Remove unused variable to address clang 15 warning
perf parse-events: Ignore clang 15 warning about variable set but unused in bison produced code
perf tests record: Fail the test if the 'errs' counter is not zero
perf test: Fix test case 87 ("perf record tests") for hybrid systems
perf arm-spe: augment the data source type with neoverse_spe list
perf tests vmlinux-kallsyms: Update is_ignored_symbol function to match the kernel ignored list
perf tests powerpc: Fix branch stack sampling test to include sanity check for branch filter
perf parse-events: Remove "not supported" hybrid cache events
perf print-events: Fix "perf list" can not display the PMU prefix for some hybrid cache events
perf tools: Get a perf cgroup more portably in BPF
* Skip tests that require EPT when it is not available
* Do not hang when a test fails with an empty stack trace
* avoid spurious failure when running access_tracking_perf_test in a KVM guest
* work around GCC's tendency to optimize loops into mem*() functions, which
breaks because the guest code in selftests cannot call into PLTs
* fix -Warray-bounds error in fix_hypercall_test
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Merge tag 'for-linus-6.0' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull kvm fixes from Paolo Bonzini:
"A small fix to the reported set of supported CPUID bits, and selftests
fixes:
- Skip tests that require EPT when it is not available
- Do not hang when a test fails with an empty stack trace
- avoid spurious failure when running access_tracking_perf_test in a
KVM guest
- work around GCC's tendency to optimize loops into mem*() functions,
which breaks because the guest code in selftests cannot call into
PLTs
- fix -Warray-bounds error in fix_hypercall_test"
* tag 'for-linus-6.0' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
KVM: selftests: Compare insn opcodes directly in fix_hypercall_test
KVM: selftests: Implement memcmp(), memcpy(), and memset() for guest use
KVM: x86: Hide IA32_PLATFORM_DCA_CAP[31:0] from the guest
KVM: selftests: Gracefully handle empty stack traces
KVM: selftests: replace assertion with warning in access_tracking_perf_test
KVM: selftests: Skip tests that require EPT when it is not available
switch to common helper to initialize rlc firmware
for gfx11
Signed-off-by: Hawking Zhang <Hawking.Zhang@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
To initialzie rlc firmware according to rlc
firmware header version
v2: squash in backwards compat fix
Signed-off-by: Hawking Zhang <Hawking.Zhang@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
To initialize rlc firmware in header v2_4
Signed-off-by: Hawking Zhang <Hawking.Zhang@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
To initialize rlc firmware in header v2_3
Signed-off-by: Hawking Zhang <Hawking.Zhang@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
To initialize rlc firmware in header v2_2
Signed-off-by: Hawking Zhang <Hawking.Zhang@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
To initialize rlc firmware in header v2_1
Signed-off-by: Hawking Zhang <Hawking.Zhang@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
To initialize rlc firmware in header v2_0
Signed-off-by: Hawking Zhang <Hawking.Zhang@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Some last minute fixes. virtio-blk is the most important one
since it was actually seen in the field, but the rest
of them are small and clearly safe, everything here has
been in next for a while.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost
Pull virtio fixes from Michael Tsirkin:
"Some last minute fixes.
The virtio-blk one is the most important one since it was actually
seen in the field, but the rest of them are small and clearly safe,
everything here has been in next for a while"
* tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost:
vdpa/mlx5: Fix MQ to support non power of two num queues
vduse: prevent uninitialized memory accesses
virtio-blk: Fix WARN_ON_ONCE in virtio_queue_rq()
virtio_test: fixup for vq reset
virtio-crypto: fix memory-leak
vdpa/ifcvf: fix the calculation of queuepair
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Merge tag 'block-6.0-2022-09-29' of git://git.kernel.dk/linux
Pull block fixes from Jens Axboe:
"A single NVMe pull request via Christoph with a few fixes that should
go into the 6.0 release:
- Fix IOC_PR_CLEAR and IOC_PR_RELEASE ioctls for nvme devices
(Michael Kelley)
- Disable Write Zeroes on Phison E3C/E4C (Tina Hsu)"
* tag 'block-6.0-2022-09-29' of git://git.kernel.dk/linux:
nvme-pci: disable Write Zeroes on Phison E3C/E4C
nvme: Fix IOC_PR_CLEAR and IOC_PR_RELEASE ioctls for nvme devices
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Merge tag 'io_uring-6.0-2022-09-29' of git://git.kernel.dk/linux
Pull io_uring fixes from Jens Axboe:
"Two fixes that should go into 6.0:
- Tweak the single issuer logic to register the task at creation,
rather than at first submit. SINGLE_ISSUER was added for 6.0, and
after some discussion on this, we decided to make it a bit stricter
while it's still possible to do so (Dylan).
- Stefan from Samba had some doubts on the level triggered poll that
was added for this release. Rather than attempt to mess around with
it now, just do the quick one-liner to disable it for release and
we have time to discuss and change it for 6.1 instead (me)"
* tag 'io_uring-6.0-2022-09-29' of git://git.kernel.dk/linux:
io_uring/poll: disable level triggered poll
io_uring: register single issuer task at creation
