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* Deleted `bcm2712-rpi-5-b-ovl-rp1.dts` as it is no longer needed.
* Updated `Makefile` to reflect the removal of the overlay.
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Linux 6.17
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Pull ARM fix from Russell King:
"Just one fix to the module freeing function that was declared __weak
when it should not have been. Thanks to Petr Pavlu for spotting this"
* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rmk/linux:
ARM: 9458/1: module: Ensure the override of module_arch_freeing_init()
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The function module_arch_freeing_init() defined in arch/arm/kernel/module.c
is supposed to override a weak function of the same name defined in
kernel/module/main.c. However, the ARM override is also marked as weak,
which means that selecting the correct function unnecessarily depends on
the order in which object files with both functions are passed to the
linker. Although it happens to be correct at the moment, the proper pattern
is to make the ARM override a strong definition.
Fixes: cdcb07e45a91 ("ARM: 8975/1: module: fix handling of unwind init sections")
Signed-off-by: Petr Pavlu <[email protected]>
Signed-off-by: Russell King (Oracle) <[email protected]>
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git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux
Pull RISC-V fixes from Paul Walmsley:
- A race-free implementation of pudp_huge_get_and_clear() (based on the
x86 code)
- A MAINTAINERS update to my E-mail address
* tag 'riscv-for-linus-v6.17-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux:
MAINTAINERS: Update Paul Walmsley's E-mail address
riscv: Use an atomic xchg in pudp_huge_get_and_clear()
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Make sure we return the right pud value and not a value that could
have been overwritten in between by a different core.
Fixes: c3cc2a4a3a23 ("riscv: Add support for PUD THP")
Cc: [email protected]
Signed-off-by: Alexandre Ghiti <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
[[email protected]: use xchg rather than atomic_long_xchg; avoid atomic op for !CONFIG_SMP like x86]
Signed-off-by: Paul Walmsley <[email protected]>
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fixes from Ingo Molnar:
"Fix a CPU topology code regression that caused the mishandling of
certain boot command line options, and re-enable CONFIG_PTDUMP on i386
that was mistakenly turned off in the Kconfig"
* tag 'x86-urgent-2025-09-26' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/topology: Implement topology_is_core_online() to address SMT regression
x86/Kconfig: Reenable PTDUMP on i386
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Christian reported that commit a430c11f4015 ("intel_idle: Rescan "dead" SMT
siblings during initialization") broke the use case in which both 'nosmt'
and 'maxcpus' are on the kernel command line because it onlines primary
threads, which were offline due to the maxcpus limit.
The initially proposed fix to skip primary threads in the loop is
inconsistent. While it prevents the primary thread to be onlined, it then
onlines the corresponding hyperthread(s), which does not really make sense.
The CPU iterator in cpuhp_smt_enable() contains a check which excludes all
threads of a core, when the primary thread is offline. The default
implementation is a NOOP and therefore not effective on x86.
Implement topology_is_core_online() on x86 to address this issue. This
makes the behaviour consistent between x86 and PowerPC.
Fixes: a430c11f4015 ("intel_idle: Rescan "dead" SMT siblings during initialization")
Fixes: f694481b1d31 ("ACPI: processor: Rescan "dead" SMT siblings during initialization")
Closes: https://lore.kernel.org/linux-pm/[email protected]/
Reported-by: Christian Loehle <[email protected]>
Signed-off-by: Thomas Gleixner <[email protected]>
Signed-off-by: Borislav Petkov (AMD) <[email protected]>
Reviewed-by: Rafael J. Wysocki (Intel) <[email protected]>
Tested-by: Christian Loehle <[email protected]>
Cc: [email protected]
Link: https://lore.kernel.org/[email protected]
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The commit
f9aad622006bd64c ("mm: rename GENERIC_PTDUMP and PTDUMP_CORE")
has broken PTDUMP and the Kconfig options that use it on ARCH=i386, including
CONFIG_DEBUG_WX.
CONFIG_GENERIC_PTDUMP was renamed into CONFIG_ARCH_HAS_PTDUMP, but it was
mistakenly moved from "config X86" to "config X86_64". That made PTDUMP
unavailable for i386.
Move CONFIG_ARCH_HAS_PTDUMP back to "config X86" to fix it.
[ bp: Massage commit message. ]
Fixes: f9aad622006bd64c ("mm: rename GENERIC_PTDUMP and PTDUMP_CORE")
Signed-off-by: Alexander Popov <[email protected]>
Signed-off-by: Borislav Petkov (AMD) <[email protected]>
Cc: [email protected]
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git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull SoC fixes from Arnd Bergmann:
"There are a few minor code fixes for tegra firmware, i.MX firmware
and the eyeq reset controller, and a MAINTAINERS update as Alyssa
Rosenzweig moves on to non-kernel projects.
The other changes are all for devicetree files:
- Multiple Marvell Armada SoCs need changes to fix PCIe, audio and
SATA
- A socfpga board fails to probe the ethernet phy
- The two temperature sensors on i.MX8MP are swapped
- Allwinner devicetree files cause build-time warnings
- Two Rockchip based boards need corrections for headphone detection
and SPI flash"
* tag 'soc-fixes-6.17-3' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc:
MAINTAINERS: remove Alyssa Rosenzweig
firmware: tegra: Do not warn on missing memory-region property
arm64: dts: marvell: cn9132-clearfog: fix multi-lane pci x2 and x4 ports
arm64: dts: marvell: cn9132-clearfog: disable eMMC high-speed modes
arm64: dts: marvell: cn913x-solidrun: fix sata ports status
ARM: dts: kirkwood: Fix sound DAI cells for OpenRD clients
arm64: dts: imx8mp: Correct thermal sensor index
ARM: imx: Kconfig: Adjust select after renamed config option
firmware: imx: Add stub functions for SCMI CPU API
firmware: imx: Add stub functions for SCMI LMM API
firmware: imx: Add stub functions for SCMI MISC API
riscv: dts: allwinner: rename devterm i2c-gpio node to comply with binding
arm64: dts: rockchip: Fix the headphone detection on the orangepi 5
arm64: dts: rockchip: Add vcc supply for SPI Flash on NanoPC-T6
ARM: dts: socfpga: sodia: Fix mdio bus probe and PHY address
reset: eyeq: fix OF node leak
ARM64: dts: mcbin: fix SATA ports on Macchiatobin
ARM: dts: armada-370-db: Fix stereo audio input routing on Armada 370
ARM: dts: allwinner: Minor whitespace cleanup
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git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip into arm/fixes
Another missing supply and a wrong headphone gpio level.
* tag 'v6.17-rockchip-dtsfixes2' of git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip:
arm64: dts: rockchip: Fix the headphone detection on the orangepi 5
arm64: dts: rockchip: Add vcc supply for SPI Flash on NanoPC-T6
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The logic of the headphone detect pin seems to be inverted, with this
change headphones actually output sound when plugged in.
Does not need workaround of using pin-switches to enable output.
Verified by checking /sys/kernel/debug/gpio.
Fixes: ae46756faff8 ("arm64: dts: rockchip: analog audio on Orange Pi 5")
Signed-off-by: Jimmy Hon <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Heiko Stuebner <[email protected]>
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FriendlyELEC NanoPC-T6 LTS schematics shows VCC_1V8_S3 being used to
power SPI NOR chip.
This fixes the following kernel message:
spi-nor spi5.0: supply vcc not found, using dummy regulator
Signed-off-by: Marcin Juszkiewicz <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Heiko Stuebner <[email protected]>
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https://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux into arm/fixes
Allwinner fixes for 6.17
Two device tree style cleanups from the device tree maintainers.
* tag 'sunxi-fixes-for-6.17' of https://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux:
riscv: dts: allwinner: rename devterm i2c-gpio node to comply with binding
ARM: dts: allwinner: Minor whitespace cleanup
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnd Bergmann <[email protected]>
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The i2c controller binding does not permit permit the node name to
contain "gpio", resulting in two warnings:
i2c-gpio-0 (i2c-gpio): $nodename:0: 'i2c-gpio-0' does not match '^i2c(@.+|-[a-z0-9]+)?$'
i2c-gpio-0 (i2c-gpio): Unevaluated properties are not allowed ('#address-cells', '#size-cells', 'adc@54' were unexpected)
Drop it to satisfy dtbs_check.
Signed-off-by: Conor Dooley <[email protected]>
Link: https://patch.msgid.link/20250909-frown-wrinkle-f16df243a970@spud
Signed-off-by: Chen-Yu Tsai <[email protected]>
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The DTS code coding style expects exactly one space around '=' or '{'
characters.
Signed-off-by: Krzysztof Kozlowski <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Chen-Yu Tsai <[email protected]>
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https://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into arm/fixes
i.MX fixes for 6.17, round 2:
- Fix mach-imx Kconfig to select the correct PIT timer option
(Lukas Bulwahn)
- Correct thermal sensor index for i.MX8MP device tree (Peng Fan)
- Fix i.MX SCMI build error by adding stub API functions (Peng Fan)
* tag 'imx-fixes-6.17-2' of https://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux:
arm64: dts: imx8mp: Correct thermal sensor index
ARM: imx: Kconfig: Adjust select after renamed config option
firmware: imx: Add stub functions for SCMI CPU API
firmware: imx: Add stub functions for SCMI LMM API
firmware: imx: Add stub functions for SCMI MISC API
Link: https://lore.kernel.org/r/aMQs2zr4fYl2DYVr@dragon
Signed-off-by: Arnd Bergmann <[email protected]>
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The TMU has two temperature measurement sites located on the chip. The
probe 0 is located inside of the ANAMIX, while the probe 1 is located near
the ARM core. This has been confirmed by checking with HW design team and
checking RTL code.
So correct the {cpu,soc}-thermal sensor index.
Fixes: 30cdd62dce6b ("arm64: dts: imx8mp: Add thermal zones support")
Signed-off-by: Peng Fan <[email protected]>
Reviewed-by: Frank Li <[email protected]>
Signed-off-by: Shawn Guo <[email protected]>
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Commit 3f490a74a8a1 ("clocksource/drivers/vf-pit: Rename the VF PIT to NXP
PIT") renames the config VF_PIT_TIMER to NXP_PIT_TIMER, but it misses
adjusting a reference to VF_PIT_TIMER in arch/arm/mach-imx/Kconfig.
Adjust the config reference to the new name.
Fixes: 3f490a74a8a1 ("clocksource/drivers/vf-pit: Rename the VF PIT to NXP PIT")
Signed-off-by: Lukas Bulwahn <[email protected]>
Signed-off-by: Shawn Guo <[email protected]>
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git://git.kernel.org/pub/scm/linux/kernel/git/dinguyen/linux into arm/fixes
SoCFPGA DTS fix for v6.17
- Fix midio bus probe and PHY address for cylone5 sodia board
* tag 'socfpga_dts_fix_for_v6.17' of git://git.kernel.org/pub/scm/linux/kernel/git/dinguyen/linux:
ARM: dts: socfpga: sodia: Fix mdio bus probe and PHY address
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnd Bergmann <[email protected]>
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On SoCFPGA/Sodia board, mdio bus cannot be probed, so the PHY cannot be
found and the network device does not work.
```
stmmaceth ff702000.ethernet eth0: __stmmac_open: Cannot attach to PHY (error: -19)
```
To probe the mdio bus, add "snps,dwmac-mdio" as compatible string of the
mdio bus. Also the PHY address connected to this board is 4. Therefore,
change to 4.
Cc: [email protected] # 6.3+
Signed-off-by: Nobuhiro Iwamatsu <[email protected]>
Signed-off-by: Dinh Nguyen <[email protected]>
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git://git.kernel.org/pub/scm/linux/kernel/git/gclement/mvebu into arm/fixes
mvebu fixes for 6.17 (part 1)
Fix SATA ports on various boards: Macchiatobin, CN913x-solidrun.
Fix audio on Armada 370 DB and OpenRD.
Disable eMMC high-speed modes on the CN9132 CEX-7 module.
Disable runtime reconfiguration for PCIe lanes on the CN9132 CEX-7 module.
* tag 'mvebu-fixes-6.17-1' of git://git.kernel.org/pub/scm/linux/kernel/git/gclement/mvebu:
arm64: dts: marvell: cn9132-clearfog: fix multi-lane pci x2 and x4 ports
arm64: dts: marvell: cn9132-clearfog: disable eMMC high-speed modes
arm64: dts: marvell: cn913x-solidrun: fix sata ports status
ARM: dts: kirkwood: Fix sound DAI cells for OpenRD clients
ARM64: dts: mcbin: fix SATA ports on Macchiatobin
ARM: dts: armada-370-db: Fix stereo audio input routing on Armada 370
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnd Bergmann <[email protected]>
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The mvebu-comphy driver does not currently know how to pass correct
lane-count to ATF while configuring the serdes lanes.
This causes the system to hard reset during reconfiguration, if a pci
card is present and has established a link during bootloader.
Remove the comphy handles from the respective pci nodes to avoid runtime
reconfiguration, relying solely on bootloader configuration - while
avoiding the hard reset.
When bootloader has configured the lanes correctly, the pci ports are
functional under Linux.
This issue may be addressed in the comphy driver at a future point.
Fixes: e9ff907f4076 ("arm64: dts: add description for solidrun cn9132 cex7 module and clearfog board")
Cc: [email protected]
Signed-off-by: Josua Mayer <[email protected]>
Signed-off-by: Gregory CLEMENT <[email protected]>
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Similar to MacchiatoBIN the high-speed modes are unstable on the CN9132
CEX-7 module, leading to failed transactions under normal use.
Disable all high-speed modes including UHS.
Additionally add no-sdio and non-removable properties as appropriate for
eMMC.
Fixes: e9ff907f4076 ("arm64: dts: add description for solidrun cn9132 cex7 module and clearfog board")
Cc: [email protected]
Signed-off-by: Josua Mayer <[email protected]>
Signed-off-by: Gregory CLEMENT <[email protected]>
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Commit "arm64: dts: marvell: only enable complete sata nodes" changed
armada-cp11x.dtsi disabling all sata ports status by default.
The author missed some dts which relied on the dtsi enabling all ports,
and just disabled unused ones instead.
Update dts for SolidRun cn913x based boards to enable the available
ports, rather than disabling the unvavailable one.
Further according to dt bindings the serdes phys are to be specified in
the port node, not the controller node.
Move those phys properties accordingly in clearfog base/pro/solidwan.
Fixes: 30023876aef4 ("arm64: dts: marvell: only enable complete sata nodes")
Cc: [email protected]
Signed-off-by: Josua Mayer <[email protected]>
Signed-off-by: Gregory CLEMENT <[email protected]>
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A previous commit changed the '#sound-dai-cells' property for the
kirkwood audio controller from 1 to 0 in the kirkwood.dtsi file,
but did not update the corresponding 'sound-dai' property in the
kirkwood-openrd-client.dts file.
This created a mismatch, causing a dtbs_check validation error where
the dts provides one cell (<&audio0 0>) while the .dtsi expects zero.
Remove the extraneous cell from the 'sound-dai' property to fix the
schema validation warning and align with the updated binding.
Fixes: e662e70fa419 ("arm: dts: kirkwood: fix error in #sound-dai-cells size")
Signed-off-by: Jihed Chaibi <[email protected]>
Reviewed-by: Krzysztof Kozlowski <[email protected]>
Signed-off-by: Gregory CLEMENT <[email protected]>
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Booting 6.16 on the Macchiatobin, I discover that I can no longer
access my disks, and thus the userspace boot fails. The cause appears
to be that one of the SATA controllers doesn't have any ports:
[ 1.190312] ahci f4540000.sata: supply ahci not found, using dummy regulator
[ 1.196255] ahci f4540000.sata: supply phy not found, using dummy regulator
[ 1.202026] ahci f4540000.sata: No port enabled
This is as a result of the blamed commit below which added a default
disabled status to the .dtsi, but didn't properly update the mcbin
dtsi file. Fix this regression.
Fixes: 30023876aef4 ("arm64: dts: marvell: only enable complete sata nodes")
Signed-off-by: Russell King (Oracle) <[email protected]>
Signed-off-by: Gregory CLEMENT <[email protected]>
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The simple-audio-card configuration for the Armada 370 development
board incorrectly routed the left channel signal ("AIN1L") to both
sides of the stereo "In Jack".
This commit corrects the typo for the right channel, changing the
second "AIN1L" entry to "AIN1R" to enable proper stereo input
recording.
Signed-off-by: Jihed Chaibi <[email protected]>
Signed-off-by: Gregory CLEMENT <[email protected]>
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fix from Ingo Molnar:
"Fix a SEV-SNP regression when CONFIG_KVM_AMD_SEV is disabled"
* tag 'x86-urgent-2025-09-20' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/sev: Guard sev_evict_cache() with CONFIG_AMD_MEM_ENCRYPT
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The sev_evict_cache() is guest-related code and should be guarded by
CONFIG_AMD_MEM_ENCRYPT, not CONFIG_KVM_AMD_SEV.
CONFIG_AMD_MEM_ENCRYPT=y is required for a guest to run properly as an SEV-SNP
guest, but a guest kernel built with CONFIG_KVM_AMD_SEV=n would get the stub
function of sev_evict_cache() instead of the version that performs the actual
eviction. Move the function declarations under the appropriate #ifdef.
Fixes: 7b306dfa326f ("x86/sev: Evict cache lines during SNP memory validation")
Signed-off-by: Tom Lendacky <[email protected]>
Signed-off-by: Borislav Petkov (AMD) <[email protected]>
Cc: [email protected] # 6.16.x
Link: https://lore.kernel.org/r/70e38f2c4a549063de54052c9f64929705313526.1757708959.git.thomas.lendacky@amd.com
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git://git.kernel.org/pub/scm/linux/kernel/git/iommu/linux
Pull iommu fixes from Joerg Roedel:
- Fixes for memory leak and memory corruption bugs on S390 and AMD-Vi
- Race condition fix in AMD-Vi page table code and S390 device attach
code
- Intel VT-d: Fix alignment checks in __domain_mapping()
- AMD-Vi: Fix potentially incorrect DTE settings when device has
aliases
* tag 'iommu-fixes-v6.17-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/iommu/linux:
iommu/amd/pgtbl: Fix possible race while increase page table level
iommu/amd: Fix alias device DTE setting
iommu/s390: Make attach succeed when the device was surprise removed
iommu/vt-d: Fix __domain_mapping()'s usage of switch_to_super_page()
iommu/s390: Fix memory corruption when using identity domain
iommu/amd: Fix ivrs_base memleak in early_amd_iommu_init()
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When a PCI device is removed with surprise hotplug, there may still be
attempts to attach the device to the default domain as part of tear down
via (__iommu_release_dma_ownership()), or because the removal happens
during probe (__iommu_probe_device()). In both cases zpci_register_ioat()
fails with a cc value indicating that the device handle is invalid. This
is because the device is no longer part of the instance as far as the
hypervisor is concerned.
Currently this leads to an error return and s390_iommu_attach_device()
fails. This triggers the WARN_ON() in __iommu_group_set_domain_nofail()
because attaching to the default domain must never fail.
With the device fenced by the hypervisor no DMAs to or from memory are
possible and the IOMMU translations have no effect. Proceed as if the
registration was successful and let the hotplug event handling clean up
the device.
This is similar to how devices in the error state are handled since
commit 59bbf596791b ("iommu/s390: Make attach succeed even if the device
is in error state") except that for removal the domain will not be
registered later. This approach was also previously discussed at the
link.
Handle both cases, error state and removal, in a helper which checks if
the error needs to be propagated or ignored. Avoid magic number
condition codes by using the pre-existing, but never used, defines for
PCI load/store condition codes and rename them to reflect that they
apply to all PCI instructions.
Cc: [email protected] # v6.2
Link: https://lore.kernel.org/linux-iommu/[email protected]/
Suggested-by: Jason Gunthorpe <[email protected]>
Signed-off-by: Niklas Schnelle <[email protected]>
Reviewed-by: Matthew Rosato <[email protected]>
Reviewed-by: Benjamin Block <[email protected]>
Link: https://lore.kernel.org/r/20250904-iommu_succeed_attach_removed-v1-1-e7f333d2f80f@linux.ibm.com
Signed-off-by: Joerg Roedel <[email protected]>
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git://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson
Pull LoongArch fixes from Huacai Chen:
"Fix some build warnings for RUST-enabled objtool check, align ACPI
structures for ARCH_STRICT_ALIGN, fix an unreliable stack for live
patching, add some NULL pointer checkings, and fix some bugs around
KVM"
* tag 'loongarch-fixes-6.17-2' of git://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson:
LoongArch: KVM: Avoid copy_*_user() with lock hold in kvm_pch_pic_regs_access()
LoongArch: KVM: Avoid copy_*_user() with lock hold in kvm_eiointc_sw_status_access()
LoongArch: KVM: Avoid copy_*_user() with lock hold in kvm_eiointc_regs_access()
LoongArch: KVM: Avoid copy_*_user() with lock hold in kvm_eiointc_ctrl_access()
LoongArch: KVM: Fix VM migration failure with PTW enabled
LoongArch: KVM: Remove unused returns and semicolons
LoongArch: vDSO: Check kcalloc() result in init_vdso()
LoongArch: Fix unreliable stack for live patching
LoongArch: Replace sprintf() with sysfs_emit()
LoongArch: Check the return value when creating kobj
LoongArch: Align ACPI structures if ARCH_STRICT_ALIGN enabled
LoongArch: Update help info of ARCH_STRICT_ALIGN
LoongArch: Handle jump tables options for RUST
LoongArch: Make LTO case independent in Makefile
objtool/LoongArch: Mark special atomic instruction as INSN_BUG type
objtool/LoongArch: Mark types based on break immediate code
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Function copy_from_user() and copy_to_user() may sleep because of page
fault, and they cannot be called in spin_lock hold context. Here move
function calling of copy_from_user() and copy_to_user() out of spinlock
context in function kvm_pch_pic_regs_access().
Otherwise there will be possible warning such as:
BUG: sleeping function called from invalid context at include/linux/uaccess.h:192
in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 6292, name: qemu-system-loo
preempt_count: 1, expected: 0
RCU nest depth: 0, expected: 0
INFO: lockdep is turned off.
irq event stamp: 0
hardirqs last enabled at (0): [<0000000000000000>] 0x0
hardirqs last disabled at (0): [<9000000004c4a554>] copy_process+0x90c/0x1d40
softirqs last enabled at (0): [<9000000004c4a554>] copy_process+0x90c/0x1d40
softirqs last disabled at (0): [<0000000000000000>] 0x0
CPU: 41 UID: 0 PID: 6292 Comm: qemu-system-loo Tainted: G W 6.17.0-rc3+ #31 PREEMPT(full)
Tainted: [W]=WARN
Stack : 0000000000000076 0000000000000000 9000000004c28264 9000100092ff4000
9000100092ff7b80 9000100092ff7b88 0000000000000000 9000100092ff7cc8
9000100092ff7cc0 9000100092ff7cc0 9000100092ff7a00 0000000000000001
0000000000000001 9000100092ff7b88 947d2f9216a5e8b9 900010008773d880
00000000ffff8b9f fffffffffffffffe 0000000000000ba1 fffffffffffffffe
000000000000003e 900000000825a15b 000010007ad38000 9000100092ff7ec0
0000000000000000 0000000000000000 9000000006f3ac60 9000000007252000
0000000000000000 00007ff746ff2230 0000000000000053 9000200088a021b0
0000555556c9d190 0000000000000000 9000000004c2827c 000055556cfb5f40
00000000000000b0 0000000000000007 0000000000000007 0000000000071c1d
Call Trace:
[<9000000004c2827c>] show_stack+0x5c/0x180
[<9000000004c20fac>] dump_stack_lvl+0x94/0xe4
[<9000000004c99c7c>] __might_resched+0x26c/0x290
[<9000000004f68968>] __might_fault+0x20/0x88
[<ffff800002311de0>] kvm_pch_pic_regs_access.isra.0+0x88/0x380 [kvm]
[<ffff8000022f8514>] kvm_device_ioctl+0x194/0x290 [kvm]
[<900000000506b0d8>] sys_ioctl+0x388/0x1010
[<90000000063ed210>] do_syscall+0xb0/0x2d8
[<9000000004c25ef8>] handle_syscall+0xb8/0x158
Cc: [email protected]
Fixes: d206d95148732 ("LoongArch: KVM: Add PCHPIC user mode read and write functions")
Signed-off-by: Bibo Mao <[email protected]>
Signed-off-by: Huacai Chen <[email protected]>
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kvm_eiointc_sw_status_access()
Function copy_from_user() and copy_to_user() may sleep because of page
fault, and they cannot be called in spin_lock hold context. Here move
funtcion calling of copy_from_user() and copy_to_user() out of function
kvm_eiointc_sw_status_access().
Otherwise there will be possible warning such as:
BUG: sleeping function called from invalid context at include/linux/uaccess.h:192
in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 6292, name: qemu-system-loo
preempt_count: 1, expected: 0
RCU nest depth: 0, expected: 0
INFO: lockdep is turned off.
irq event stamp: 0
hardirqs last enabled at (0): [<0000000000000000>] 0x0
hardirqs last disabled at (0): [<9000000004c4a554>] copy_process+0x90c/0x1d40
softirqs last enabled at (0): [<9000000004c4a554>] copy_process+0x90c/0x1d40
softirqs last disabled at (0): [<0000000000000000>] 0x0
CPU: 41 UID: 0 PID: 6292 Comm: qemu-system-loo Tainted: G W 6.17.0-rc3+ #31 PREEMPT(full)
Tainted: [W]=WARN
Stack : 0000000000000076 0000000000000000 9000000004c28264 9000100092ff4000
9000100092ff7b80 9000100092ff7b88 0000000000000000 9000100092ff7cc8
9000100092ff7cc0 9000100092ff7cc0 9000100092ff7a00 0000000000000001
0000000000000001 9000100092ff7b88 947d2f9216a5e8b9 900010008773d880
00000000ffff8b9f fffffffffffffffe 0000000000000ba1 fffffffffffffffe
000000000000003e 900000000825a15b 000010007ad38000 9000100092ff7ec0
0000000000000000 0000000000000000 9000000006f3ac60 9000000007252000
0000000000000000 00007ff746ff2230 0000000000000053 9000200088a021b0
0000555556c9d190 0000000000000000 9000000004c2827c 000055556cfb5f40
00000000000000b0 0000000000000007 0000000000000007 0000000000071c1d
Call Trace:
[<9000000004c2827c>] show_stack+0x5c/0x180
[<9000000004c20fac>] dump_stack_lvl+0x94/0xe4
[<9000000004c99c7c>] __might_resched+0x26c/0x290
[<9000000004f68968>] __might_fault+0x20/0x88
[<ffff800002311de0>] kvm_eiointc_sw_status_access.isra.0+0x88/0x380 [kvm]
[<ffff8000022f8514>] kvm_device_ioctl+0x194/0x290 [kvm]
[<900000000506b0d8>] sys_ioctl+0x388/0x1010
[<90000000063ed210>] do_syscall+0xb0/0x2d8
[<9000000004c25ef8>] handle_syscall+0xb8/0x158
Cc: [email protected]
Fixes: 1ad7efa552fd5 ("LoongArch: KVM: Add EIOINTC user mode read and write functions")
Signed-off-by: Bibo Mao <[email protected]>
Signed-off-by: Huacai Chen <[email protected]>
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Function copy_from_user() and copy_to_user() may sleep because of page
fault, and they cannot be called in spin_lock hold context. Here move
function calling of copy_from_user() and copy_to_user() before spinlock
context in function kvm_eiointc_ctrl_access().
Otherwise there will be possible warning such as:
BUG: sleeping function called from invalid context at include/linux/uaccess.h:192
in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 6292, name: qemu-system-loo
preempt_count: 1, expected: 0
RCU nest depth: 0, expected: 0
INFO: lockdep is turned off.
irq event stamp: 0
hardirqs last enabled at (0): [<0000000000000000>] 0x0
hardirqs last disabled at (0): [<9000000004c4a554>] copy_process+0x90c/0x1d40
softirqs last enabled at (0): [<9000000004c4a554>] copy_process+0x90c/0x1d40
softirqs last disabled at (0): [<0000000000000000>] 0x0
CPU: 41 UID: 0 PID: 6292 Comm: qemu-system-loo Tainted: G W 6.17.0-rc3+ #31 PREEMPT(full)
Tainted: [W]=WARN
Stack : 0000000000000076 0000000000000000 9000000004c28264 9000100092ff4000
9000100092ff7b80 9000100092ff7b88 0000000000000000 9000100092ff7cc8
9000100092ff7cc0 9000100092ff7cc0 9000100092ff7a00 0000000000000001
0000000000000001 9000100092ff7b88 947d2f9216a5e8b9 900010008773d880
00000000ffff8b9f fffffffffffffffe 0000000000000ba1 fffffffffffffffe
000000000000003e 900000000825a15b 000010007ad38000 9000100092ff7ec0
0000000000000000 0000000000000000 9000000006f3ac60 9000000007252000
0000000000000000 00007ff746ff2230 0000000000000053 9000200088a021b0
0000555556c9d190 0000000000000000 9000000004c2827c 000055556cfb5f40
00000000000000b0 0000000000000007 0000000000000007 0000000000071c1d
Call Trace:
[<9000000004c2827c>] show_stack+0x5c/0x180
[<9000000004c20fac>] dump_stack_lvl+0x94/0xe4
[<9000000004c99c7c>] __might_resched+0x26c/0x290
[<9000000004f68968>] __might_fault+0x20/0x88
[<ffff800002311de0>] kvm_eiointc_regs_access.isra.0+0x88/0x380 [kvm]
[<ffff8000022f8514>] kvm_device_ioctl+0x194/0x290 [kvm]
[<900000000506b0d8>] sys_ioctl+0x388/0x1010
[<90000000063ed210>] do_syscall+0xb0/0x2d8
[<9000000004c25ef8>] handle_syscall+0xb8/0x158
Cc: [email protected]
Fixes: 1ad7efa552fd5 ("LoongArch: KVM: Add EIOINTC user mode read and write functions")
Signed-off-by: Bibo Mao <[email protected]>
Signed-off-by: Huacai Chen <[email protected]>
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Function copy_from_user() and copy_to_user() may sleep because of page
fault, and they cannot be called in spin_lock hold context. Here move
function calling of copy_from_user() and copy_to_user() before spinlock
context in function kvm_eiointc_ctrl_access().
Otherwise there will be possible warning such as:
BUG: sleeping function called from invalid context at include/linux/uaccess.h:192
in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 6292, name: qemu-system-loo
preempt_count: 1, expected: 0
RCU nest depth: 0, expected: 0
INFO: lockdep is turned off.
irq event stamp: 0
hardirqs last enabled at (0): [<0000000000000000>] 0x0
hardirqs last disabled at (0): [<9000000004c4a554>] copy_process+0x90c/0x1d40
softirqs last enabled at (0): [<9000000004c4a554>] copy_process+0x90c/0x1d40
softirqs last disabled at (0): [<0000000000000000>] 0x0
CPU: 41 UID: 0 PID: 6292 Comm: qemu-system-loo Tainted: G W 6.17.0-rc3+ #31 PREEMPT(full)
Tainted: [W]=WARN
Stack : 0000000000000076 0000000000000000 9000000004c28264 9000100092ff4000
9000100092ff7b80 9000100092ff7b88 0000000000000000 9000100092ff7cc8
9000100092ff7cc0 9000100092ff7cc0 9000100092ff7a00 0000000000000001
0000000000000001 9000100092ff7b88 947d2f9216a5e8b9 900010008773d880
00000000ffff8b9f fffffffffffffffe 0000000000000ba1 fffffffffffffffe
000000000000003e 900000000825a15b 000010007ad38000 9000100092ff7ec0
0000000000000000 0000000000000000 9000000006f3ac60 9000000007252000
0000000000000000 00007ff746ff2230 0000000000000053 9000200088a021b0
0000555556c9d190 0000000000000000 9000000004c2827c 000055556cfb5f40
00000000000000b0 0000000000000007 0000000000000007 0000000000071c1d
Call Trace:
[<9000000004c2827c>] show_stack+0x5c/0x180
[<9000000004c20fac>] dump_stack_lvl+0x94/0xe4
[<9000000004c99c7c>] __might_resched+0x26c/0x290
[<9000000004f68968>] __might_fault+0x20/0x88
[<ffff800002311de0>] kvm_eiointc_ctrl_access.isra.0+0x88/0x380 [kvm]
[<ffff8000022f8514>] kvm_device_ioctl+0x194/0x290 [kvm]
[<900000000506b0d8>] sys_ioctl+0x388/0x1010
[<90000000063ed210>] do_syscall+0xb0/0x2d8
[<9000000004c25ef8>] handle_syscall+0xb8/0x158
Cc: [email protected]
Fixes: 1ad7efa552fd5 ("LoongArch: KVM: Add EIOINTC user mode read and write functions")
Signed-off-by: Bibo Mao <[email protected]>
Signed-off-by: Huacai Chen <[email protected]>
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With PTW disabled system, bit _PAGE_DIRTY is a HW bit for page writing.
However with PTW enabled system, bit _PAGE_WRITE is also a "HW bit" for
page writing, because hardware synchronizes _PAGE_WRITE to _PAGE_DIRTY
automatically. Previously, _PAGE_WRITE is treated as a SW bit to record
the page writeable attribute for the fast page fault handling in the
secondary MMU, however with PTW enabled machine, this bit is used by HW
already (so setting it will silence the TLB modify exception).
Here define KVM_PAGE_WRITEABLE with the SW bit _PAGE_MODIFIED, so that
it can work on both PTW disabled and enabled machines. And for HW write
bits, both _PAGE_DIRTY and _PAGE_WRITE are set or clear together.
Cc: [email protected]
Signed-off-by: Bibo Mao <[email protected]>
Signed-off-by: Huacai Chen <[email protected]>
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The default branch has already handled all undefined cases, so the final
return statement is redundant. Redundant semicolons are removed, too.
Cc: [email protected]
Reviewed-by: Bibo Mao <[email protected]>
Signed-off-by: Tao Cui <[email protected]>
Signed-off-by: Huacai Chen <[email protected]>
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Add a NULL-pointer check after the kcalloc() call in init_vdso(). If
allocation fails, return -ENOMEM to prevent a possible dereference of
vdso_info.code_mapping.pages when it is NULL.
Cc: [email protected]
Fixes: 2ed119aef60d ("LoongArch: Set correct size for vDSO code mapping")
Signed-off-by: Guangshuo Li <[email protected]>
Signed-off-by: Huacai Chen <[email protected]>
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When testing the kernel live patching with "modprobe livepatch-sample",
there is a timeout over 15 seconds from "starting patching transition"
to "patching complete". The dmesg command shows "unreliable stack" for
user tasks in debug mode, here is one of the messages:
livepatch: klp_try_switch_task: bash:1193 has an unreliable stack
The "unreliable stack" is because it can not unwind from do_syscall()
to its previous frame handle_syscall(). It should use fp to find the
original stack top due to secondary stack in do_syscall(), but fp is
not used for some other functions, then fp can not be restored by the
next frame of do_syscall(), so it is necessary to save fp if task is
not current, in order to get the stack top of do_syscall().
Here are the call chains:
klp_enable_patch()
klp_try_complete_transition()
klp_try_switch_task()
klp_check_and_switch_task()
klp_check_stack()
stack_trace_save_tsk_reliable()
arch_stack_walk_reliable()
When executing "rmmod livepatch-sample", there exists a similar issue.
With this patch, it takes a short time for patching and unpatching.
Before:
# modprobe livepatch-sample
# dmesg -T | tail -3
[Sat Sep 6 11:00:20 2025] livepatch: 'livepatch_sample': starting patching transition
[Sat Sep 6 11:00:35 2025] livepatch: signaling remaining tasks
[Sat Sep 6 11:00:36 2025] livepatch: 'livepatch_sample': patching complete
# echo 0 > /sys/kernel/livepatch/livepatch_sample/enabled
# rmmod livepatch_sample
rmmod: ERROR: Module livepatch_sample is in use
# rmmod livepatch_sample
# dmesg -T | tail -3
[Sat Sep 6 11:06:05 2025] livepatch: 'livepatch_sample': starting unpatching transition
[Sat Sep 6 11:06:20 2025] livepatch: signaling remaining tasks
[Sat Sep 6 11:06:21 2025] livepatch: 'livepatch_sample': unpatching complete
After:
# modprobe livepatch-sample
# dmesg -T | tail -2
[Tue Sep 16 16:19:30 2025] livepatch: 'livepatch_sample': starting patching transition
[Tue Sep 16 16:19:31 2025] livepatch: 'livepatch_sample': patching complete
# echo 0 > /sys/kernel/livepatch/livepatch_sample/enabled
# rmmod livepatch_sample
# dmesg -T | tail -2
[Tue Sep 16 16:19:36 2025] livepatch: 'livepatch_sample': starting unpatching transition
[Tue Sep 16 16:19:37 2025] livepatch: 'livepatch_sample': unpatching complete
Cc: [email protected] # v6.9+
Fixes: 199cc14cb4f1 ("LoongArch: Add kernel livepatching support")
Reported-by: Xi Zhang <[email protected]>
Signed-off-by: Tiezhu Yang <[email protected]>
Signed-off-by: Huacai Chen <[email protected]>
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As Documentation/filesystems/sysfs.rst suggested, show() should only use
sysfs_emit() or sysfs_emit_at() when formatting the value to be returned
to user space.
No functional change intended.
Cc: [email protected]
Signed-off-by: Tao Cui <[email protected]>
Signed-off-by: Huacai Chen <[email protected]>
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Add a check for the return value of kobject_create_and_add(), to ensure
that the kobj allocation succeeds for later use.
Cc: [email protected]
Signed-off-by: Tao Cui <[email protected]>
Signed-off-by: Huacai Chen <[email protected]>
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ARCH_STRICT_ALIGN is used for hardware without UAL, now it only control
the -mstrict-align flag. However, ACPI structures are packed by default
so will cause unaligned accesses.
To avoid this, define ACPI_MISALIGNMENT_NOT_SUPPORTED in asm/acenv.h to
align ACPI structures if ARCH_STRICT_ALIGN enabled.
Cc: [email protected]
Reported-by: Binbin Zhou <[email protected]>
Suggested-by: Xi Ruoyao <[email protected]>
Suggested-by: Jiaxun Yang <[email protected]>
Signed-off-by: Huacai Chen <[email protected]>
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Loongson-3A6000 and 3C6000 CPUs also support unaligned memory access, so
the current description is out of date to some extent.
Actually, all of Loongson-3 series processors based on LoongArch support
unaligned memory access, this hardware capability is indicated by the bit
20 (UAL) of CPUCFG1 register, update the help info to reflect the reality.
Cc: [email protected]
Signed-off-by: Tiezhu Yang <[email protected]>
Signed-off-by: Huacai Chen <[email protected]>
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When compiling with LLVM and CONFIG_RUST is set, there exist objtool
warnings in rust/core.o and rust/kernel.o, like this:
rust/core.o: warning: objtool:
_RNvXs1_NtNtCs5QSdWC790r4_4core5ascii10ascii_charNtB5_9AsciiCharNtNtB9_3fmt5Debug3fmt+0x54:
sibling call from callable instruction with modified stack frame
For this special case, the related object file shows that there is no
generated relocation section '.rela.discard.tablejump_annotate' for the
table jump instruction jirl, thus objtool can not know that what is the
actual destination address.
If rustc has the option "-Cllvm-args=--loongarch-annotate-tablejump",
pass the option to enable jump tables for objtool, otherwise it should
pass "-Zno-jump-tables" to keep compatibility with older rustc.
How to test:
$ rustup component add rust-src
$ make LLVM=1 rustavailable
$ make ARCH=loongarch LLVM=1 clean defconfig
$ scripts/config -d MODVERSIONS \
-e RUST -e SAMPLES -e SAMPLES_RUST \
-e SAMPLE_RUST_CONFIGFS -e SAMPLE_RUST_MINIMAL \
-e SAMPLE_RUST_MISC_DEVICE -e SAMPLE_RUST_PRINT \
-e SAMPLE_RUST_DMA -e SAMPLE_RUST_DRIVER_PCI \
-e SAMPLE_RUST_DRIVER_PLATFORM -e SAMPLE_RUST_DRIVER_FAUX \
-e SAMPLE_RUST_DRIVER_AUXILIARY -e SAMPLE_RUST_HOSTPROGS
$ make ARCH=loongarch LLVM=1 olddefconfig all
Cc: [email protected]
Acked-by: Miguel Ojeda <[email protected]>
Reported-by: Miguel Ojeda <[email protected]>
Closes: https://lore.kernel.org/rust-for-linux/CANiq72mNeCuPkCDrG2db3w=AX+O-zYrfprisDPmRac_qh65Dmg@mail.gmail.com/
Suggested-by: WANG Rui <[email protected]>
Signed-off-by: Tiezhu Yang <[email protected]>
Signed-off-by: Huacai Chen <[email protected]>
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LTO is not only used for Clang, but maybe also used for Rust, make LTO
case out of CONFIG_CC_HAS_ANNOTATE_TABLEJUMP in Makefile.
This is preparation for later patch, no function changes.
Cc: [email protected]
Suggested-by: WANG Rui <[email protected]>
Signed-off-by: Tiezhu Yang <[email protected]>
Signed-off-by: Huacai Chen <[email protected]>
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Pull kvm fixes from Paolo Bonzini:
"These are mostly Oliver's Arm changes: lock ordering fixes for the
vGIC, and reverts for a buggy attempt to avoid RCU stalls on large
VMs.
Arm:
- Invalidate nested MMUs upon freeing the PGD to avoid WARNs when
visiting from an MMU notifier
- Fixes to the TLB match process and TLB invalidation range for
managing the VCNR pseudo-TLB
- Prevent SPE from erroneously profiling guests due to UNKNOWN reset
values in PMSCR_EL1
- Fix save/restore of host MDCR_EL2 to account for eagerly
programming at vcpu_load() on VHE systems
- Correct lock ordering when dealing with VGIC LPIs, avoiding
scenarios where an xarray's spinlock was nested with a *raw*
spinlock
- Permit stage-2 read permission aborts which are possible in the
case of NV depending on the guest hypervisor's stage-2 translation
- Call raw_spin_unlock() instead of the internal spinlock API
- Fix parameter ordering when assigning VBAR_EL1
- Reverted a couple of fixes for RCU stalls when destroying a stage-2
page table.
There appears to be some nasty refcounting / UAF issues lurking in
those patches and the band-aid we tried to apply didn't hold.
s390:
- mm fixes, including userfaultfd bug fix
x86:
- Sync the vTPR from the local APIC to the VMCB even when AVIC is
active.
This fixes a bug where host updates to the vTPR, e.g. via
KVM_SET_LAPIC or emulation of a guest access, are lost and result
in interrupt delivery issues in the guest"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
KVM: SVM: Sync TPR from LAPIC into VMCB::V_TPR even if AVIC is active
Revert "KVM: arm64: Split kvm_pgtable_stage2_destroy()"
Revert "KVM: arm64: Reschedule as needed when destroying the stage-2 page-tables"
KVM: arm64: vgic: fix incorrect spinlock API usage
KVM: arm64: Remove stage 2 read fault check
KVM: arm64: Fix parameter ordering for VBAR_EL1 assignment
KVM: arm64: nv: Fix incorrect VNCR invalidation range calculation
KVM: arm64: vgic-v3: Indicate vgic_put_irq() may take LPI xarray lock
KVM: arm64: vgic-v3: Don't require IRQs be disabled for LPI xarray lock
KVM: arm64: vgic-v3: Erase LPIs from xarray outside of raw spinlocks
KVM: arm64: Spin off release helper from vgic_put_irq()
KVM: arm64: vgic-v3: Use bare refcount for VGIC LPIs
KVM: arm64: vgic: Drop stale comment on IRQ active state
KVM: arm64: VHE: Save and restore host MDCR_EL2 value correctly
KVM: arm64: Initialize PMSCR_EL1 when in VHE
KVM: arm64: nv: fix VNCR TLB ASID match logic for non-Global entries
KVM: s390: Fix FOLL_*/FAULT_FLAG_* confusion
KVM: s390: Fix incorrect usage of mmu_notifier_register()
KVM: s390: Fix access to unavailable adapter indicator pages during postcopy
KVM: arm64: Mark freed S2 MMUs as invalid
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https://git.kernel.org/pub/scm/linux/kernel/git/kvms390/linux into HEAD
- KVM mm fixes
- Postcopy fix
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