mirror of
https://github.com/armbian/linux-rockchip.git
synced 2026-01-06 11:08:10 -08:00
Workflow-KeepArm64Output
427 Commits
| Author | SHA1 | Message | Date | |
|---|---|---|---|---|
Tao Huang
|
495fe343ce |
Merge tag 'v6.1.99'
This is the 6.1.99 stable release * tag 'v6.1.99': (1975 commits) Linux 6.1.99 Revert "usb: xhci: prevent potential failure in handle_tx_event() for Transfer events without TRB" Linux 6.1.98 nilfs2: fix incorrect inode allocation from reserved inodes null_blk: Do not allow runt zone with zone capacity smaller then zone size spi: cadence: Ensure data lines set to low during dummy-cycle period nfc/nci: Add the inconsistency check between the input data length and count kbuild: fix short log for AS in link-vmlinux.sh nvmet: fix a possible leak when destroy a ctrl during qp establishment platform/x86: touchscreen_dmi: Add info for the EZpad 6s Pro platform/x86: touchscreen_dmi: Add info for GlobalSpace SolT IVW 11.6" tablet regmap-i2c: Subtract reg size from max_write nvme: adjust multiples of NVME_CTRL_PAGE_SIZE in offset dma-mapping: benchmark: avoid needless copy_to_user if benchmark fails nvme-multipath: find NUMA path only for online numa-node ALSA: hda/realtek: Enable headset mic of JP-IK LEAP W502 with ALC897 fs/ntfs3: Mark volume as dirty if xattr is broken i2c: pnx: Fix potential deadlock warning from del_timer_sync() call in isr clk: mediatek: mt8183: Only enable runtime PM on mt8183-mfgcfg clk: mediatek: clk-mtk: Register MFG notifier in mtk_clk_simple_probe() ... Change-Id: Ibf9c2caa3bbffb7a960e82ec6c2b0b497753778c Conflicts: arch/arm64/boot/dts/rockchip/rk3328.dtsi drivers/gpu/drm/rockchip/rockchip_drm_vop2.c drivers/phy/rockchip/phy-rockchip-snps-pcie3.c drivers/pinctrl/pinctrl-rockchip.c drivers/usb/gadget/function/u_audio.c include/linux/usb/quirks.h mm/cma.c sound/soc/rockchip/rockchip_i2s_tdm.c |
||
Yuntao Wang
|
71af0f2f22 |
cpu/hotplug: Fix dynstate assignment in __cpuhp_setup_state_cpuslocked()
commit 932d8476399f622aa0767a4a0a9e78e5341dc0e1 upstream. Commit |
||
|
Tao Huang
|
fce55f8eb2 |
Merge tag 'v6.1.75'
This is the 6.1.75 stable release * tag 'v6.1.75': (2623 commits) Linux 6.1.75 Revert "Revert "md/raid5: Wait for MD_SB_CHANGE_PENDING in raid5d"" arm64: dts: armada-3720-turris-mox: set irq type for RTC Revert "KEYS: encrypted: Add check for strsep" riscv: Fix wrong usage of lm_alias() when splitting a huge linear mapping block: Remove special-casing of compound pages i2c: s3c24xx: fix transferring more than one message in polling mode i2c: s3c24xx: fix read transfers in polling mode ipv6: mcast: fix data-race in ipv6_mc_down / mld_ifc_work selftests: mlxsw: qos_pfc: Adjust the test to support 8 lanes mlxsw: spectrum_acl_erp: Fix error flow of pool allocation failure loop: fix the the direct I/O support check when used on top of block devices ethtool: netlink: Add missing ethnl_ops_begin/complete kdb: Fix a potential buffer overflow in kdb_local() ipvs: avoid stat macros calls from preemptible context netfilter: nf_tables: reject NFT_SET_CONCAT with not field length description netfilter: nf_tables: skip dead set elements in netlink dump netfilter: nf_tables: do not allow mismatch field size and set key length netfilter: bridge: replace physindev with physinif in nf_bridge_info netfilter: propagate net to nf_bridge_get_physindev ... Conflicts: drivers/clk/rockchip/clk-rk3568.c drivers/devfreq/event/rockchip-dfi.c drivers/gpu/drm/rockchip/rockchip_drm_vop.c drivers/gpu/drm/rockchip/rockchip_drm_vop2.c drivers/i2c/busses/i2c-rk3x.c drivers/i2c/i2c-core-base.c drivers/net/ethernet/stmicro/stmmac/stmmac_main.c drivers/nvme/host/nvme.h Change-Id: I9649ece83925659bca59cced0be24f0bd165822a Signed-off-by: Sandy Huang <hjc@rock-chips.com> Signed-off-by: Tao Huang <huangtao@rock-chips.com> |
||
Sean Christopherson
|
38f17d1fbb |
cpu: Re-enable CPU mitigations by default for !X86 architectures
commit fe42754b94a42d08cf9501790afc25c4f6a5f631 upstream.
Rename x86's to CPU_MITIGATIONS, define it in generic code, and force it
on for all architectures exception x86. A recent commit to turn
mitigations off by default if SPECULATION_MITIGATIONS=n kinda sorta
missed that "cpu_mitigations" is completely generic, whereas
SPECULATION_MITIGATIONS is x86-specific.
Rename x86's SPECULATIVE_MITIGATIONS instead of keeping both and have it
select CPU_MITIGATIONS, as having two configs for the same thing is
unnecessary and confusing. This will also allow x86 to use the knob to
manage mitigations that aren't strictly related to speculative
execution.
Use another Kconfig to communicate to common code that CPU_MITIGATIONS
is already defined instead of having x86's menu depend on the common
CPU_MITIGATIONS. This allows keeping a single point of contact for all
of x86's mitigations, and it's not clear that other architectures *want*
to allow disabling mitigations at compile-time.
Fixes: f337a6a21e2f ("x86/cpu: Actually turn off mitigations by default for SPECULATION_MITIGATIONS=n")
Closes: https://lkml.kernel.org/r/20240413115324.53303a68%40canb.auug.org.au
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Reported-by: Michael Ellerman <mpe@ellerman.id.au>
Reported-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Sean Christopherson <seanjc@google.com>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Acked-by: Josh Poimboeuf <jpoimboe@kernel.org>
Acked-by: Borislav Petkov (AMD) <bp@alien8.de>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20240420000556.2645001-2-seanjc@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|
||
|
Sean Christopherson
|
9c09773917 |
x86/cpu: Actually turn off mitigations by default for SPECULATION_MITIGATIONS=n
commit f337a6a21e2fd67eadea471e93d05dd37baaa9be upstream.
Initialize cpu_mitigations to CPU_MITIGATIONS_OFF if the kernel is built
with CONFIG_SPECULATION_MITIGATIONS=n, as the help text quite clearly
states that disabling SPECULATION_MITIGATIONS is supposed to turn off all
mitigations by default.
│ If you say N, all mitigations will be disabled. You really
│ should know what you are doing to say so.
As is, the kernel still defaults to CPU_MITIGATIONS_AUTO, which results in
some mitigations being enabled in spite of SPECULATION_MITIGATIONS=n.
Fixes:
|
||
Thomas Gleixner
|
abc3e3fb71 |
cpu/SMT: Make SMT control more robust against enumeration failures
[ Upstream commit d91bdd96b55cc3ce98d883a60f133713821b80a6 ]
The SMT control mechanism got added as speculation attack vector
mitigation. The implemented logic relies on the primary thread mask to
be set up properly.
This turns out to be an issue with XEN/PV guests because their CPU hotplug
mechanics do not enumerate APICs and therefore the mask is never correctly
populated.
This went unnoticed so far because by chance XEN/PV ends up with
smp_num_siblings == 2. So smt_hotplug_control stays at its default value
CPU_SMT_ENABLED and the primary thread mask is never evaluated in the
context of CPU hotplug.
This stopped "working" with the upcoming overhaul of the topology
evaluation which legitimately provides a fake topology for XEN/PV. That
sets smp_num_siblings to 1, which causes the core CPU hot-plug core to
refuse to bring up the APs.
This happens because smt_hotplug_control is set to CPU_SMT_NOT_SUPPORTED
which causes cpu_smt_allowed() to evaluate the unpopulated primary thread
mask with the conclusion that all non-boot CPUs are not valid to be
plugged.
Make cpu_smt_allowed() more robust and take CPU_SMT_NOT_SUPPORTED and
CPU_SMT_NOT_IMPLEMENTED into account. Rename it to cpu_bootable() while at
it as that makes it more clear what the function is about.
The primary mask issue on x86 XEN/PV needs to be addressed separately as
there are users outside of the CPU hotplug code too.
Fixes:
|
||
Michael Ellerman
|
482fa21635 |
cpu/SMT: Create topology_smt_thread_allowed()
[ Upstream commit 38253464bc821d6de6bba81bb1412ebb36f6cbd1 ] Some architectures allows partial SMT states, i.e. when not all SMT threads are brought online. To support that, add an architecture helper which checks whether a given CPU is allowed to be brought online depending on how many SMT threads are currently enabled. Since this is only applicable to architecture supporting partial SMT, only these architectures should select the new configuration variable CONFIG_SMT_NUM_THREADS_DYNAMIC. For the other architectures, not supporting the partial SMT states, there is no need to define topology_cpu_smt_allowed(), the generic code assumed that all the threads are allowed or only the primary ones. Call the helper from cpu_smt_enable(), and cpu_smt_allowed() when SMT is enabled, to check if the particular thread should be onlined. Notably, also call it from cpu_smt_disable() if CPU_SMT_ENABLED, to allow offlining some threads to move from a higher to lower number of threads online. [ ldufour: Slightly reword the commit's description ] [ ldufour: Introduce CONFIG_SMT_NUM_THREADS_DYNAMIC ] Suggested-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Signed-off-by: Laurent Dufour <ldufour@linux.ibm.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Tested-by: Zhang Rui <rui.zhang@intel.com> Link: https://lore.kernel.org/r/20230705145143.40545-7-ldufour@linux.ibm.com Stable-dep-of: d91bdd96b55c ("cpu/SMT: Make SMT control more robust against enumeration failures") Signed-off-by: Sasha Levin <sashal@kernel.org> |
||
|
Tao Huang
|
b3471d8054 |
Merge tag 'v6.1.57'
This is the 6.1.57 stable release * tag 'v6.1.57': (2054 commits) Linux 6.1.57 xen/events: replace evtchn_rwlock with RCU ipv6: remove one read_lock()/read_unlock() pair in rt6_check_neigh() btrfs: file_remove_privs needs an exclusive lock in direct io write netlink: remove the flex array from struct nlmsghdr btrfs: fix fscrypt name leak after failure to join log transaction btrfs: fix an error handling path in btrfs_rename() vrf: Fix lockdep splat in output path ipv6: remove nexthop_fib6_nh_bh() parisc: Restore __ldcw_align for PA-RISC 2.0 processors ksmbd: fix uaf in smb20_oplock_break_ack ksmbd: fix race condition between session lookup and expire x86/sev: Use the GHCB protocol when available for SNP CPUID requests RDMA/mlx5: Fix NULL string error RDMA/mlx5: Fix mutex unlocking on error flow for steering anchor creation RDMA/siw: Fix connection failure handling RDMA/srp: Do not call scsi_done() from srp_abort() RDMA/uverbs: Fix typo of sizeof argument RDMA/cma: Fix truncation compilation warning in make_cma_ports RDMA/cma: Initialize ib_sa_multicast structure to 0 when join ... Change-Id: I79b925ca5822e02e0b9f497b1db93fef0e1dadd3 Conflicts: drivers/gpu/drm/rockchip/rockchip_drm_vop.c drivers/iommu/rockchip-iommu.c drivers/power/supply/rk817_charger.c drivers/scsi/sd.c include/linux/pci.h |
||
|
Thomas Gleixner
|
75b5016ce3 |
hrtimers: Push pending hrtimers away from outgoing CPU earlier
[ Upstream commit 5c0930ccaad5a74d74e8b18b648c5eb21ed2fe94 ]
2b8272ff4a70 ("cpu/hotplug: Prevent self deadlock on CPU hot-unplug")
solved the straight forward CPU hotplug deadlock vs. the scheduler
bandwidth timer. Yu discovered a more involved variant where a task which
has a bandwidth timer started on the outgoing CPU holds a lock and then
gets throttled. If the lock required by one of the CPU hotplug callbacks
the hotplug operation deadlocks because the unthrottling timer event is not
handled on the dying CPU and can only be recovered once the control CPU
reaches the hotplug state which pulls the pending hrtimers from the dead
CPU.
Solve this by pushing the hrtimers away from the dying CPU in the dying
callbacks. Nothing can queue a hrtimer on the dying CPU at that point because
all other CPUs spin in stop_machine() with interrupts disabled and once the
operation is finished the CPU is marked offline.
Reported-by: Yu Liao <liaoyu15@huawei.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: Liu Tie <liutie4@huawei.com>
Link: https://lore.kernel.org/r/87a5rphara.ffs@tglx
Signed-off-by: Sasha Levin <sashal@kernel.org>
|
||
Ran Xiaokai
|
3410b70235 |
cpu/hotplug: Don't offline the last non-isolated CPU
[ Upstream commit 38685e2a0476127db766f81b1c06019ddc4c9ffa ]
If a system has isolated CPUs via the "isolcpus=" command line parameter,
then an attempt to offline the last housekeeping CPU will result in a
WARN_ON() when rebuilding the scheduler domains and a subsequent panic due
to and unhandled empty CPU mas in partition_sched_domains_locked().
cpuset_hotplug_workfn()
rebuild_sched_domains_locked()
ndoms = generate_sched_domains(&doms, &attr);
cpumask_and(doms[0], top_cpuset.effective_cpus, housekeeping_cpumask(HK_FLAG_DOMAIN));
Thus results in an empty CPU mask which triggers the warning and then the
subsequent crash:
WARNING: CPU: 4 PID: 80 at kernel/sched/topology.c:2366 build_sched_domains+0x120c/0x1408
Call trace:
build_sched_domains+0x120c/0x1408
partition_sched_domains_locked+0x234/0x880
rebuild_sched_domains_locked+0x37c/0x798
rebuild_sched_domains+0x30/0x58
cpuset_hotplug_workfn+0x2a8/0x930
Unable to handle kernel paging request at virtual address fffe80027ab37080
partition_sched_domains_locked+0x318/0x880
rebuild_sched_domains_locked+0x37c/0x798
Aside of the resulting crash, it does not make any sense to offline the last
last housekeeping CPU.
Prevent this by masking out the non-housekeeping CPUs when selecting a
target CPU for initiating the CPU unplug operation via the work queue.
Suggested-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ran Xiaokai <ran.xiaokai@zte.com.cn>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/r/202310171709530660462@zte.com.cn
Signed-off-by: Sasha Levin <sashal@kernel.org>
|
||
|
Thomas Gleixner
|
fea9dd8653 |
cpu/hotplug: Prevent self deadlock on CPU hot-unplug
commit 2b8272ff4a70b866106ae13c36be7ecbef5d5da2 upstream.
Xiongfeng reported and debugged a self deadlock of the task which initiates
and controls a CPU hot-unplug operation vs. the CFS bandwidth timer.
CPU1 CPU2
T1 sets cfs_quota
starts hrtimer cfs_bandwidth 'period_timer'
T1 is migrated to CPU2
T1 initiates offlining of CPU1
Hotplug operation starts
...
'period_timer' expires and is re-enqueued on CPU1
...
take_cpu_down()
CPU1 shuts down and does not handle timers
anymore. They have to be migrated in the
post dead hotplug steps by the control task.
T1 runs the post dead offline operation
T1 is scheduled out
T1 waits for 'period_timer' to expire
T1 waits there forever if it is scheduled out before it can execute the hrtimer
offline callback hrtimers_dead_cpu().
Cure this by delegating the hotplug control operation to a worker thread on
an online CPU. This takes the initiating user space task, which might be
affected by the bandwidth timer, completely out of the picture.
Reported-by: Xiongfeng Wang <wangxiongfeng2@huawei.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: Yu Liao <liaoyu15@huawei.com>
Acked-by: Vincent Guittot <vincent.guittot@linaro.org>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/lkml/8e785777-03aa-99e1-d20e-e956f5685be6@huawei.com
Link: https://lore.kernel.org/r/87h6oqdq0i.ffs@tglx
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|
||
|
Tao Huang
|
daf2796321 |
Merge commit '52f971ee6e023d89d24f9e3cd145d86d707e459c'
* commit '52f971ee6e023d89d24f9e3cd145d86d707e459c': (84565 commits) arm64: dts: rockchip: rk3562: Enable viLKsvPwrActive for soc bus mtd: spi-nor: esmt: Support New devices mtd: spi-nor: fmsh: Support New devices mtd: spi-nor: gigadevice: Support New devices mtd: spinand: gsto: Add code mtd: spinand: hyf: Support new devices mmc: convert thunder boot dependency ARM: dts: rockchip: rv1106: add node for system sleep ARM: rockchip: support rv1106 suspend ARM: rockchip: add some pm-related functions video: rockchip: mpp: fix rk3528 avsd not probe issue arm64: dts: rockchip: rk3588-vehicle-maxim-serdes: Add BOE AV156FHT L83 support arm64: rockchip_defconfig: Enable CONFIG_DRM_PANEL_MAXIM_MAX96752F drm/panel: Add panel driver for Maxim MAX96752F based LCDs media: i2c: techpoint: add support 4 channel 2 lane mode drm/rockchip: dsi2: fix NULL in component_ops .unbind helper media: rockchip: vicap: fixes cma can not alloc when capture raw media: rockchip: vicap: fixed vc err for multi channel media: rockchip: hdmirx: fix timing info for interlaced resolution media: rockchip: hdmirx: fix code error for cec register failed ... Change-Id: Ia7ac365455d87a295e62bbf481d80694a9712f30 Conflicts: .gitignore Documentation/devicetree/bindings/clock/rockchip,px30-cru.txt Documentation/devicetree/bindings/connector/usb-connector.yaml Documentation/devicetree/bindings/display/rockchip/dw_hdmi-rockchip.txt Documentation/devicetree/bindings/hwmon/pwm-fan.txt Documentation/devicetree/bindings/iio/light/vl6180.txt Documentation/devicetree/bindings/iommu/rockchip,iommu.txt Documentation/devicetree/bindings/mtd/rockchip,nand-controller.yaml Documentation/devicetree/bindings/net/rockchip-dwmac.yaml Documentation/devicetree/bindings/net/snps,dwmac.yaml Documentation/devicetree/bindings/phy/phy-rockchip-inno-usb2.yaml Documentation/devicetree/bindings/power/rockchip-io-domain.txt Documentation/devicetree/bindings/regulator/fan53555.txt Documentation/devicetree/bindings/soc/rockchip/power_domain.txt Documentation/devicetree/bindings/sound/rockchip,pdm.yaml Documentation/devicetree/bindings/sound/rockchip-spdif.yaml Documentation/devicetree/bindings/spi/spi-rockchip.yaml Documentation/devicetree/bindings/thermal/rockchip-thermal.txt Documentation/devicetree/bindings/usb/usb-xhci.txt Documentation/filesystems/erofs.rst arch/arm/Kconfig arch/arm/Makefile arch/arm/boot/compressed/head.S arch/arm/boot/dts/rk3036.dtsi arch/arm/boot/dts/rk3066a-rayeager.dts arch/arm/boot/dts/rk3066a.dtsi arch/arm/boot/dts/rk322x.dtsi arch/arm/boot/dts/rk3288.dtsi arch/arm/boot/dts/rk3xxx.dtsi arch/arm64/boot/dts/rockchip/Makefile arch/arm64/boot/dts/rockchip/px30.dtsi arch/arm64/boot/dts/rockchip/rk3308.dtsi arch/arm64/boot/dts/rockchip/rk3399-opp.dtsi arch/arm64/boot/dts/rockchip/rk3399.dtsi arch/arm64/boot/dts/rockchip/rk3566.dtsi arch/arm64/boot/dts/rockchip/rk3568-pinctrl.dtsi arch/arm64/boot/dts/rockchip/rk3568.dtsi arch/arm64/boot/dts/rockchip/rockchip-pinconf.dtsi arch/arm64/kernel/process.c arch/arm64/mm/Makefile arch/arm64/mm/fault.c arch/arm64/mm/init.c drivers/Kconfig drivers/Makefile drivers/android/Kconfig drivers/ata/ahci_platform.c drivers/char/hw_random/Kconfig drivers/char/hw_random/Makefile drivers/clk/clk.c drivers/clk/rockchip/Kconfig drivers/clk/rockchip/Makefile drivers/clk/rockchip/clk-cpu.c drivers/clk/rockchip/clk-rk3036.c drivers/clk/rockchip/clk-rk3188.c drivers/clk/rockchip/clk-rk3308.c drivers/clk/rockchip/clk-rk3399.c drivers/clk/rockchip/clk-rk3568.c drivers/clk/rockchip/clk-rv1126.c drivers/clk/rockchip/clk.c drivers/clk/rockchip/clk.h drivers/cpufreq/cpufreq-dt.c drivers/crypto/Kconfig drivers/devfreq/Makefile drivers/devfreq/devfreq.c drivers/dma-buf/dma-buf.c drivers/dma-buf/heaps/Makefile drivers/dma/pl330.c drivers/firmware/Kconfig drivers/gpio/Kconfig drivers/gpio/Makefile drivers/gpio/gpio-rockchip.c drivers/gpu/Makefile drivers/gpu/drm/Kconfig drivers/gpu/drm/Makefile drivers/gpu/drm/bridge/Kconfig drivers/gpu/drm/bridge/Makefile drivers/gpu/drm/bridge/analogix/analogix_dp_core.c drivers/gpu/drm/bridge/analogix/analogix_dp_core.h drivers/gpu/drm/bridge/analogix/analogix_dp_reg.c drivers/gpu/drm/bridge/display-connector.c drivers/gpu/drm/bridge/sii902x.c drivers/gpu/drm/bridge/synopsys/Makefile drivers/gpu/drm/bridge/synopsys/dw-hdmi.c drivers/gpu/drm/bridge/synopsys/dw-mipi-dsi.c drivers/gpu/drm/drm_atomic_helper.c drivers/gpu/drm/drm_crtc_internal.h drivers/gpu/drm/drm_edid.c drivers/gpu/drm/panel/panel-simple.c drivers/gpu/drm/rockchip/Kconfig drivers/gpu/drm/rockchip/Makefile drivers/gpu/drm/rockchip/analogix_dp-rockchip.c drivers/gpu/drm/rockchip/dw-mipi-dsi-rockchip.c drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c drivers/gpu/drm/rockchip/inno_hdmi.c drivers/gpu/drm/rockchip/rockchip_drm_drv.c drivers/gpu/drm/rockchip/rockchip_drm_drv.h drivers/gpu/drm/rockchip/rockchip_drm_fbdev.c drivers/gpu/drm/rockchip/rockchip_drm_gem.c drivers/gpu/drm/rockchip/rockchip_drm_vop.c drivers/gpu/drm/rockchip/rockchip_drm_vop.h drivers/gpu/drm/rockchip/rockchip_drm_vop2.c drivers/gpu/drm/rockchip/rockchip_lvds.c drivers/gpu/drm/rockchip/rockchip_rgb.c drivers/gpu/drm/rockchip/rockchip_vop2_reg.c drivers/gpu/drm/rockchip/rockchip_vop_reg.c drivers/gpu/drm/rockchip/rockchip_vop_reg.h drivers/hwmon/pwm-fan.c drivers/hwspinlock/Kconfig drivers/hwspinlock/Makefile drivers/i2c/busses/i2c-rk3x.c drivers/i2c/i2c-core-base.c drivers/iio/adc/Kconfig drivers/iio/adc/rockchip_saradc.c drivers/iio/industrialio-event.c drivers/input/touchscreen/Makefile drivers/iommu/iommu.c drivers/iommu/rockchip-iommu.c drivers/irqchip/irq-gic-v3-its.c drivers/leds/Makefile drivers/mailbox/Kconfig drivers/media/common/videobuf2/Makefile drivers/media/i2c/Kconfig drivers/media/i2c/Makefile drivers/media/i2c/dw9714.c drivers/media/i2c/hi556.c drivers/media/i2c/imx214.c drivers/media/i2c/imx258.c drivers/media/i2c/imx334.c drivers/media/i2c/imx335.c drivers/media/i2c/ov5648.c drivers/media/i2c/ov5670.c drivers/media/i2c/ov5695.c drivers/media/i2c/ov7251.c drivers/media/platform/Kconfig drivers/media/platform/Makefile drivers/media/platform/rockchip/Kconfig drivers/media/spi/Kconfig drivers/media/spi/Makefile drivers/media/usb/uvc/uvc_driver.c drivers/media/usb/uvc/uvcvideo.h drivers/media/v4l2-core/v4l2-async.c drivers/media/v4l2-core/v4l2-ioctl.c drivers/mfd/rk808.c drivers/mmc/core/block.c drivers/mmc/core/host.c drivers/mmc/core/mmc.c drivers/mmc/core/mmc_ops.c drivers/mmc/host/Makefile drivers/mmc/host/dw_mmc-rockchip.c drivers/mmc/host/dw_mmc.c drivers/mmc/host/dw_mmc.h drivers/mmc/host/sdhci-of-dwcmshc.c drivers/mtd/nand/Makefile drivers/mtd/nand/raw/Kconfig drivers/mtd/nand/raw/Makefile drivers/mtd/nand/raw/rockchip-nand-controller.c drivers/mtd/nand/spi/Makefile drivers/mtd/nand/spi/core.c drivers/mtd/nand/spi/gigadevice.c drivers/mtd/nand/spi/macronix.c drivers/mtd/nand/spi/xtx.c drivers/mtd/spi-nor/Kconfig drivers/mtd/spi-nor/Makefile drivers/mtd/spi-nor/core.c drivers/mtd/spi-nor/core.h drivers/mtd/spi-nor/eon.c drivers/mtd/spi-nor/esmt.c drivers/mtd/spi-nor/gigadevice.c drivers/mtd/spi-nor/macronix.c drivers/mtd/spi-nor/winbond.c drivers/mtd/spi-nor/xmc.c drivers/net/ethernet/stmicro/stmmac/Makefile drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c drivers/net/ethernet/stmicro/stmmac/dwmac4_core.c drivers/net/ethernet/stmicro/stmmac/stmmac.h drivers/net/ethernet/stmicro/stmmac/stmmac_main.c drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c drivers/net/phy/Kconfig drivers/net/phy/motorcomm.c drivers/net/phy/phy_device.c drivers/nvmem/Kconfig drivers/nvmem/Makefile drivers/pci/controller/dwc/Makefile drivers/pci/controller/dwc/pcie-designware-host.c drivers/pci/controller/dwc/pcie-dw-rockchip.c drivers/pci/controller/pcie-rockchip-host.c drivers/pci/controller/pcie-rockchip.h drivers/pci/pci-sysfs.c drivers/pci/pcie/Makefile drivers/phy/rockchip/Kconfig drivers/phy/rockchip/Makefile drivers/phy/rockchip/phy-rockchip-inno-dsidphy.c drivers/phy/rockchip/phy-rockchip-inno-usb2.c drivers/phy/rockchip/phy-rockchip-naneng-combphy.c drivers/phy/rockchip/phy-rockchip-snps-pcie3.c drivers/phy/rockchip/phy-rockchip-typec.c drivers/pinctrl/Kconfig drivers/pinctrl/Makefile drivers/pinctrl/pinctrl-rk805.c drivers/pinctrl/pinctrl-rockchip.c drivers/pinctrl/pinctrl-rockchip.h drivers/power/supply/Kconfig drivers/power/supply/Makefile drivers/power/supply/bq25890_charger.c drivers/power/supply/rk817_charger.c drivers/pwm/core.c drivers/pwm/pwm-rockchip.c drivers/regulator/fan53555.c drivers/regulator/rk808-regulator.c drivers/rtc/rtc-hym8563.c drivers/soc/rockchip/Kconfig drivers/soc/rockchip/Makefile drivers/soc/rockchip/grf.c drivers/soc/rockchip/io-domain.c drivers/soc/rockchip/pm_domains.c drivers/spi/Kconfig drivers/spi/spi-rockchip-sfc.c drivers/spi/spi-rockchip.c drivers/spi/spidev.c drivers/staging/android/ion/heaps/ion_system_heap.c drivers/thermal/rockchip_thermal.c drivers/tty/serial/8250/8250_dma.c drivers/tty/serial/8250/8250_dw.c drivers/tty/serial/8250/8250_dwlib.c drivers/tty/serial/8250/8250_port.c drivers/usb/dwc2/platform.c drivers/usb/dwc3/core.c drivers/usb/dwc3/core.h drivers/usb/dwc3/ep0.c drivers/usb/dwc3/gadget.c drivers/usb/gadget/configfs.c drivers/usb/gadget/function/f_fs.c drivers/usb/gadget/function/f_uvc.c drivers/usb/gadget/function/uvc.h drivers/usb/gadget/function/uvc_configfs.c drivers/usb/gadget/function/uvc_queue.c drivers/usb/gadget/function/uvc_v4l2.c drivers/usb/gadget/function/uvc_video.c drivers/usb/gadget/udc/core.c drivers/usb/host/ehci-hcd.c drivers/usb/host/ehci-platform.c drivers/usb/storage/unusual_uas.h drivers/usb/typec/altmodes/Kconfig drivers/usb/typec/altmodes/displayport.c drivers/usb/typec/class.c drivers/usb/typec/tcpm/tcpm.c fs/Kconfig fs/cifs/inode.c fs/dax.c fs/erofs/data.c fs/erofs/inode.c fs/erofs/internal.h fs/erofs/super.c fs/f2fs/super.c fs/fuse/dev.c include/drm/bridge/dw_hdmi.h include/drm/drm_connector.h include/drm/drm_edid.h include/dt-bindings/clock/rk3568-cru.h include/dt-bindings/power/rk3568-power.h include/dt-bindings/power/rk3588-power.h include/linux/clk-provider.h include/linux/cma.h include/linux/dma-buf.h include/linux/dma-heap.h include/linux/mfd/rk808.h include/linux/mtd/spi-nor.h include/linux/mtd/spinand.h include/linux/phy/pcie.h include/linux/pwm.h include/linux/sched/sysctl.h include/linux/slub_def.h include/linux/stmmac.h include/linux/usb/typec.h include/media/v4l2-async.h include/soc/rockchip/pm_domains.h include/uapi/drm/drm_fourcc.h include/uapi/linux/iio/types.h include/uapi/linux/media-bus-format.h init/Kconfig init/main.c kernel/printk/printk.c kernel/rcu/Kconfig.debug kernel/rcu/tree_stall.h kernel/sched/core.c kernel/sched/cpufreq_schedutil.c kernel/sched/fair.c kernel/sched/pelt.c kernel/sched/rt.c kernel/sched/sched.h kernel/softirq.c kernel/sysctl.c mm/Makefile mm/cma.c mm/page_alloc.c mm/slub.c scripts/.gitignore scripts/headers_install.sh sound/soc/codecs/Kconfig sound/soc/codecs/Makefile sound/soc/codecs/es8326.c sound/soc/codecs/es8326.h sound/soc/codecs/hdmi-codec.c sound/soc/codecs/rk817_codec.c sound/soc/rockchip/Kconfig sound/soc/rockchip/Makefile sound/soc/rockchip/rockchip_i2s.c sound/soc/rockchip/rockchip_i2s_tdm.c sound/soc/rockchip/rockchip_i2s_tdm.h sound/soc/rockchip/rockchip_pdm.c sound/soc/rockchip/rockchip_spdif.c sound/soc/soc-generic-dmaengine-pcm.c tools/iio/iio_event_monitor.c |
||
|
Tao Huang
|
cc17504307 |
Merge tag 'android12-5.10-2023-02_r1' of https://android.googlesource.com/kernel/common
android12-5.10 February 2023 release 1 Artifacts: https://ci.android.com/builds/submitted/9611440/kernel_aarch64/latest * tag 'android12-5.10-2023-02_r1': (5560 commits) ANDROID: GKI: Enable ARM64_ERRATUM_2454944 ANDROID: dma-ops: Add restricted vendor hook ANDROID: arm64: Work around Cortex-A510 erratum 2454944 ANDROID: mm/vmalloc: Add override for lazy vunmap ANDROID: cpuidle-psci: Fix suspicious RCU usage ANDROID: ABI: update allowed list for galaxy FROMGIT: f2fs: add sysfs nodes to set last_age_weight FROMGIT: f2fs: fix wrong calculation of block age ANDROID: struct io_uring ABI preservation hack for 5.10.162 changes ANDROID: fix up struct task_struct ABI change in 5.10.162 ANDROID: add flags variable back to struct proto_ops UPSTREAM: io_uring: pass in EPOLL_URING_WAKE for eventfd signaling and wakeups UPSTREAM: eventfd: provide a eventfd_signal_mask() helper UPSTREAM: eventpoll: add EPOLL_URING_WAKE poll wakeup flag UPSTREAM: Revert "proc: don't allow async path resolution of /proc/self components" UPSTREAM: Revert "proc: don't allow async path resolution of /proc/thread-self components" UPSTREAM: net: remove cmsg restriction from io_uring based send/recvmsg calls UPSTREAM: task_work: unconditionally run task_work from get_signal() UPSTREAM: signal: kill JOBCTL_TASK_WORK UPSTREAM: io_uring: import 5.15-stable io_uring ... Change-Id: I2b16474d6e3a91f1d702486ec6d1565a7bc310e3 Conflicts: Documentation/ABI/testing/configfs-usb-gadget-uac2 Documentation/usb/gadget-testing.rst Makefile arch/arm/boot/dts/rk3288-evb-act8846.dts arch/arm64/mm/Makefile drivers/dma-buf/dma-buf.c drivers/gpu/drm/bridge/analogix/analogix_dp_core.c drivers/gpu/drm/bridge/synopsys/dw-hdmi.c drivers/gpu/drm/rockchip/analogix_dp-rockchip.c drivers/gpu/drm/rockchip/rockchip_drm_vop.c drivers/mmc/core/mmc.c drivers/pci/controller/dwc/pcie-designware-host.c drivers/pinctrl/pinctrl-rockchip.c drivers/regulator/core.c drivers/usb/dwc3/ep0.c drivers/usb/dwc3/gadget.c drivers/usb/gadget/function/f_hid.c drivers/usb/gadget/function/f_uac1.c drivers/usb/gadget/function/f_uac2.c drivers/usb/gadget/function/u_audio.c drivers/usb/gadget/function/u_audio.h drivers/usb/gadget/function/u_uac2.h drivers/usb/host/xhci.h drivers/usb/storage/unusual_uas.h drivers/usb/typec/altmodes/displayport.c include/linux/page_ext.h mm/cma.c mm/page_ext.c sound/core/pcm_dmaengine.c sound/soc/codecs/hdmi-codec.c include/linux/stmmac.h sound/drivers/aloop.c drivers/pci/controller/dwc/pcie-designware.h |
||
Srinivasarao Pathipati
|
6bd9415d98 |
ANDROID: cpu: correct dl_cpu_busy() calls
The patch |
||
Vincent Donnefort
|
685c4ec6c8 |
cpu/hotplug: Do not bail-out in DYING/STARTING sections
[ Upstream commit 6f855b39e4602b6b42a8e5cbcfefb8a1b8b5f0be ] The DYING/STARTING callbacks are not expected to fail. However, as reported by Derek, buggy drivers such as tboot are still free to return errors within those sections, which halts the hot(un)plug and leaves the CPU in an unrecoverable state. As there is no rollback possible, only log the failures and proceed with the following steps. This restores the hotplug behaviour prior to commit |
||
Phil Auld
|
4070e9cf72 |
cpu/hotplug: Make target_store() a nop when target == state
[ Upstream commit 64ea6e44f85b9b75925ebe1ba0e6e8430cc4e06f ]
Writing the current state back in hotplug/target calls cpu_down()
which will set cpu dying even when it isn't and then nothing will
ever clear it. A stress test that reads values and writes them back
for all cpu device files in sysfs will trigger the BUG() in
select_fallback_rq once all cpus are marked as dying.
kernel/cpu.c::target_store()
...
if (st->state < target)
ret = cpu_up(dev->id, target);
else
ret = cpu_down(dev->id, target);
cpu_down() -> cpu_set_state()
bool bringup = st->state < target;
...
if (cpu_dying(cpu) != !bringup)
set_cpu_dying(cpu, !bringup);
Fix this by letting state==target fall through in the target_store()
conditional. Also make sure st->target == target in that case.
Fixes:
|
||
Todd Kjos
|
b046e2dca5 |
ANDROID: Fix kenelci build-break for !CONFIG_PERF_EVENTS
Kernelci builds were broken if !CONFIG_PERF_EVENTS since |
||
Amit Pundir
|
f9144816b5 |
ANDROID: idle_notifier: Add generic idle notifiers
AOSP Change-ID: Idf29cda15be151f494ff245933c12462643388d5
moved x86_64 idle notifiers as generic so that they can
be used in interactive governor.
Upstream change
|
||
Jason A. Donenfeld
|
830f0202d7 |
ANDROID: cpu/hotplug: avoid breaking Android ABI by fusing cpuhp steps
We can't add more values to the cpuhp_state enum, lest we break some
vendor module. So instead break out existing steps into helper functions
which call both steps. Fortunately none of these steps return anything
other than 0, so we don't need to worry about rollback.
Bug: 161946584
Fixes:
|
||
Greg Kroah-Hartman
|
f2eb31a498 |
Merge 5.10.119 into android12-5.10-lts
Changes in 5.10.119
lockdown: also lock down previous kgdb use
staging: rtl8723bs: prevent ->Ssid overflow in rtw_wx_set_scan()
KVM: x86: Properly handle APF vs disabled LAPIC situation
KVM: x86/mmu: fix NULL pointer dereference on guest INVPCID
tcp: change source port randomizarion at connect() time
secure_seq: use the 64 bits of the siphash for port offset calculation
media: vim2m: Register video device after setting up internals
media: vim2m: initialize the media device earlier
ACPI: sysfs: Make sparse happy about address space in use
ACPI: sysfs: Fix BERT error region memory mapping
random: avoid arch_get_random_seed_long() when collecting IRQ randomness
random: remove dead code left over from blocking pool
MAINTAINERS: co-maintain random.c
MAINTAINERS: add git tree for random.c
crypto: lib/blake2s - Move selftest prototype into header file
crypto: blake2s - define shash_alg structs using macros
crypto: x86/blake2s - define shash_alg structs using macros
crypto: blake2s - remove unneeded includes
crypto: blake2s - move update and final logic to internal/blake2s.h
crypto: blake2s - share the "shash" API boilerplate code
crypto: blake2s - optimize blake2s initialization
crypto: blake2s - add comment for blake2s_state fields
crypto: blake2s - adjust include guard naming
crypto: blake2s - include <linux/bug.h> instead of <asm/bug.h>
lib/crypto: blake2s: include as built-in
lib/crypto: blake2s: move hmac construction into wireguard
lib/crypto: sha1: re-roll loops to reduce code size
lib/crypto: blake2s: avoid indirect calls to compression function for Clang CFI
random: document add_hwgenerator_randomness() with other input functions
random: remove unused irq_flags argument from add_interrupt_randomness()
random: use BLAKE2s instead of SHA1 in extraction
random: do not sign extend bytes for rotation when mixing
random: do not re-init if crng_reseed completes before primary init
random: mix bootloader randomness into pool
random: harmonize "crng init done" messages
random: use IS_ENABLED(CONFIG_NUMA) instead of ifdefs
random: early initialization of ChaCha constants
random: avoid superfluous call to RDRAND in CRNG extraction
random: don't reset crng_init_cnt on urandom_read()
random: fix typo in comments
random: cleanup poolinfo abstraction
random: cleanup integer types
random: remove incomplete last_data logic
random: remove unused extract_entropy() reserved argument
random: rather than entropy_store abstraction, use global
random: remove unused OUTPUT_POOL constants
random: de-duplicate INPUT_POOL constants
random: prepend remaining pool constants with POOL_
random: cleanup fractional entropy shift constants
random: access input_pool_data directly rather than through pointer
random: selectively clang-format where it makes sense
random: simplify arithmetic function flow in account()
random: continually use hwgenerator randomness
random: access primary_pool directly rather than through pointer
random: only call crng_finalize_init() for primary_crng
random: use computational hash for entropy extraction
random: simplify entropy debiting
random: use linear min-entropy accumulation crediting
random: always wake up entropy writers after extraction
random: make credit_entropy_bits() always safe
random: remove use_input_pool parameter from crng_reseed()
random: remove batched entropy locking
random: fix locking in crng_fast_load()
random: use RDSEED instead of RDRAND in entropy extraction
random: get rid of secondary crngs
random: inline leaves of rand_initialize()
random: ensure early RDSEED goes through mixer on init
random: do not xor RDRAND when writing into /dev/random
random: absorb fast pool into input pool after fast load
random: use simpler fast key erasure flow on per-cpu keys
random: use hash function for crng_slow_load()
random: make more consistent use of integer types
random: remove outdated INT_MAX >> 6 check in urandom_read()
random: zero buffer after reading entropy from userspace
random: fix locking for crng_init in crng_reseed()
random: tie batched entropy generation to base_crng generation
random: remove ifdef'd out interrupt bench
random: remove unused tracepoints
random: add proper SPDX header
random: deobfuscate irq u32/u64 contributions
random: introduce drain_entropy() helper to declutter crng_reseed()
random: remove useless header comment
random: remove whitespace and reorder includes
random: group initialization wait functions
random: group crng functions
random: group entropy extraction functions
random: group entropy collection functions
random: group userspace read/write functions
random: group sysctl functions
random: rewrite header introductory comment
random: defer fast pool mixing to worker
random: do not take pool spinlock at boot
random: unify early init crng load accounting
random: check for crng_init == 0 in add_device_randomness()
random: pull add_hwgenerator_randomness() declaration into random.h
random: clear fast pool, crng, and batches in cpuhp bring up
random: round-robin registers as ulong, not u32
random: only wake up writers after zap if threshold was passed
random: cleanup UUID handling
random: unify cycles_t and jiffies usage and types
random: do crng pre-init loading in worker rather than irq
random: give sysctl_random_min_urandom_seed a more sensible value
random: don't let 644 read-only sysctls be written to
random: replace custom notifier chain with standard one
random: use SipHash as interrupt entropy accumulator
random: make consistent usage of crng_ready()
random: reseed more often immediately after booting
random: check for signal and try earlier when generating entropy
random: skip fast_init if hwrng provides large chunk of entropy
random: treat bootloader trust toggle the same way as cpu trust toggle
random: re-add removed comment about get_random_{u32,u64} reseeding
random: mix build-time latent entropy into pool at init
random: do not split fast init input in add_hwgenerator_randomness()
random: do not allow user to keep crng key around on stack
random: check for signal_pending() outside of need_resched() check
random: check for signals every PAGE_SIZE chunk of /dev/[u]random
random: allow partial reads if later user copies fail
random: make random_get_entropy() return an unsigned long
random: document crng_fast_key_erasure() destination possibility
random: fix sysctl documentation nits
init: call time_init() before rand_initialize()
ia64: define get_cycles macro for arch-override
s390: define get_cycles macro for arch-override
parisc: define get_cycles macro for arch-override
alpha: define get_cycles macro for arch-override
powerpc: define get_cycles macro for arch-override
timekeeping: Add raw clock fallback for random_get_entropy()
m68k: use fallback for random_get_entropy() instead of zero
riscv: use fallback for random_get_entropy() instead of zero
mips: use fallback for random_get_entropy() instead of just c0 random
arm: use fallback for random_get_entropy() instead of zero
nios2: use fallback for random_get_entropy() instead of zero
x86/tsc: Use fallback for random_get_entropy() instead of zero
um: use fallback for random_get_entropy() instead of zero
sparc: use fallback for random_get_entropy() instead of zero
xtensa: use fallback for random_get_entropy() instead of zero
random: insist on random_get_entropy() existing in order to simplify
random: do not use batches when !crng_ready()
random: use first 128 bits of input as fast init
random: do not pretend to handle premature next security model
random: order timer entropy functions below interrupt functions
random: do not use input pool from hard IRQs
random: help compiler out with fast_mix() by using simpler arguments
siphash: use one source of truth for siphash permutations
random: use symbolic constants for crng_init states
random: avoid initializing twice in credit race
random: move initialization out of reseeding hot path
random: remove ratelimiting for in-kernel unseeded randomness
random: use proper jiffies comparison macro
random: handle latent entropy and command line from random_init()
random: credit architectural init the exact amount
random: use static branch for crng_ready()
random: remove extern from functions in header
random: use proper return types on get_random_{int,long}_wait()
random: make consistent use of buf and len
random: move initialization functions out of hot pages
random: move randomize_page() into mm where it belongs
random: unify batched entropy implementations
random: convert to using fops->read_iter()
random: convert to using fops->write_iter()
random: wire up fops->splice_{read,write}_iter()
random: check for signals after page of pool writes
ALSA: ctxfi: Add SB046x PCI ID
Linux 5.10.119
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I65f898474b7704881a3dd528012e7e91b09b3767
|
||
|
Jason A. Donenfeld
|
5064550d42 |
random: clear fast pool, crng, and batches in cpuhp bring up
commit
|
||
Linus Torvalds
|
3a755ebcc2 |
Merge tag 'x86_tdx_for_v5.19_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull Intel TDX support from Borislav Petkov: "Intel Trust Domain Extensions (TDX) support. This is the Intel version of a confidential computing solution called Trust Domain Extensions (TDX). This series adds support to run the kernel as part of a TDX guest. It provides similar guest protections to AMD's SEV-SNP like guest memory and register state encryption, memory integrity protection and a lot more. Design-wise, it differs from AMD's solution considerably: it uses a software module which runs in a special CPU mode called (Secure Arbitration Mode) SEAM. As the name suggests, this module serves as sort of an arbiter which the confidential guest calls for services it needs during its lifetime. Just like AMD's SNP set, this series reworks and streamlines certain parts of x86 arch code so that this feature can be properly accomodated" * tag 'x86_tdx_for_v5.19_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (34 commits) x86/tdx: Fix RETs in TDX asm x86/tdx: Annotate a noreturn function x86/mm: Fix spacing within memory encryption features message x86/kaslr: Fix build warning in KASLR code in boot stub Documentation/x86: Document TDX kernel architecture ACPICA: Avoid cache flush inside virtual machines x86/tdx/ioapic: Add shared bit for IOAPIC base address x86/mm: Make DMA memory shared for TD guest x86/mm/cpa: Add support for TDX shared memory x86/tdx: Make pages shared in ioremap() x86/topology: Disable CPU online/offline control for TDX guests x86/boot: Avoid #VE during boot for TDX platforms x86/boot: Set CR0.NE early and keep it set during the boot x86/acpi/x86/boot: Add multiprocessor wake-up support x86/boot: Add a trampoline for booting APs via firmware handoff x86/tdx: Wire up KVM hypercalls x86/tdx: Port I/O: Add early boot support x86/tdx: Port I/O: Add runtime hypercalls x86/boot: Port I/O: Add decompression-time support for TDX x86/boot: Port I/O: Allow to hook up alternative helpers ... |
||
Steven Price
|
d308077e5e |
cpu/hotplug: Initialise all cpuhp_cpu_state structs earlier
Rather than waiting until a CPU is first brought online, do the initialisation of the cpuhp_cpu_state structure for each CPU during the __init phase. This saves a (small) amount of non-__init memory and avoids potential confusion about when the cpuhp_cpu_state struct is valid. Suggested-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Steven Price <steven.price@arm.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lore.kernel.org/r/20220411152233.474129-3-steven.price@arm.com |
||
|
Steven Price
|
b7ba6d8dc3 |
cpu/hotplug: Remove the 'cpu' member of cpuhp_cpu_state
Currently the setting of the 'cpu' member of struct cpuhp_cpu_state in
cpuhp_create() is too late as it is used earlier in _cpu_up().
If kzalloc_node() in __smpboot_create_thread() fails then the rollback will
be done with st->cpu==0 causing CPU0 to be erroneously set to be dying,
causing the scheduler to get mightily confused and throw its toys out of
the pram.
However the cpu number is actually available directly, so simply remove
the 'cpu' member and avoid the problem in the first place.
Fixes:
|
||
Kuppuswamy Sathyanarayanan
|
bae1a962ac |
x86/topology: Disable CPU online/offline control for TDX guests
Unlike regular VMs, TDX guests use the firmware hand-off wakeup method to wake up the APs during the boot process. This wakeup model uses a mailbox to communicate with firmware to bring up the APs. As per the design, this mailbox can only be used once for the given AP, which means after the APs are booted, the same mailbox cannot be used to offline/online the given AP. More details about this requirement can be found in Intel TDX Virtual Firmware Design Guide, sec titled "AP initialization in OS" and in sec titled "Hotplug Device". Since the architecture does not support any method of offlining the CPUs, disable CPU hotplug support in the kernel. Since this hotplug disable feature can be re-used by other VM guests, add a new CC attribute CC_ATTR_HOTPLUG_DISABLED and use it to disable the hotplug support. Attempt to offline CPU will fail with -EOPNOTSUPP. Signed-off-by: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com> Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com> Reviewed-by: Andi Kleen <ak@linux.intel.com> Reviewed-by: Tony Luck <tony.luck@intel.com> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lkml.kernel.org/r/20220405232939.73860-25-kirill.shutemov@linux.intel.com |