Changes in Kconfig

70cb95c736807da2c4952423c9f9afe470341996 - Merge tag 'soc-drivers-7.2' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc

Wed, 17 Jun 2026 20:21:40 +0200

Merge tag 'soc-drivers-7.2' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/socPull SoC driver updates from Arnd Bergmann: "There are a few added drivers, but mostly the normal maintenance to drivers for firmware, memory controller and other soc specific hardware: - The NXP QuickEngine gets modern MSI support, which allows some cleanups to the GICv3 irqchip chip driver - A new SoC specific driver for the Renesas R-Car MFIS unit is added, encapsulating support for the on-chip mailbox and hwspinlock implementations that are not easily separated into individual drivers - The Qualcomm SoC drivers add support for additional SoC implementations, and flexibility around power management for the serial-engine driver as well as probing the LLCC driver using custom hardware descriptions inside of the device itself. - Added support for the Samsung thermal management unit - A cleanup to the Tegra 'PMC' driver interfaces to remove legacy APIs and allow multiple PMC instances everywhere. - Updates to the TI SCI and KNAS drivers to improve suspend/resume support. - Minor driver changes for mediatek, xilinx, allwinner, aspeed, tegra, broadcom, amd, microchip and starfive specific drivers - Memory controller updates for Tegra and Renesas for additional SoC types and other improvements. - Firmware driver updates for Arm FF-A, SMCCC and SCMI interfaces, to update driver probing, object lifetimes and address minor bugs"* tag 'soc-drivers-7.2' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (189 commits) Revert "firmware: zynqmp: Add dynamic CSU register discovery and sysfs interface" Revert "Documentation: ABI: add sysfs interface for ZynqMP CSU registers" memory: tegra234: drop dead NULL check in tegra234_mc_icc_aggregate() memory: tegra264: drop redundant tegra264_mc_icc_aggregate() memory: tegra186-emc: stop borrowing MC aggregate hook for EMC soc: aspeed: cleanup dead default for ASPEED_SOCINFO firmware: tegra: bpmp: Add support for multi-socket platforms firmware: tegra: bpmp: Propagate debugfs errors soc/tegra: pmc: Add Tegra238 support soc/tegra: pmc: Restrict power-off handler to Nexus 7 soc/tegra: pmc: Populate powergate debugfs only when needed soc/tegra: pmc: Move legacy code behind CONFIG_ARM guard soc/tegra: pmc: Remove unused legacy functions soc/tegra: pmc: Create PMC context dynamically firmware: samsung: acpm: remove compile-testing stubs firmware: samsung: acpm: Add devm_acpm_get_by_phandle helper firmware: samsung: acpm: Add TMU protocol support firmware: samsung: acpm: Make acpm_ops const and access via pointer firmware: samsung: acpm: Drop redundant _ops suffix in acpm_ops members firmware: samsung: acpm: Annotate rx_data->cmd with __counted_by_ptr ... List of files: /linux/drivers/irqchip/Kconfig

49ff66206e5fcceb8c8743b8d08f2f3ee28e1281 - Merge tag 'soc_fsl-7.1-2' of https://git.kernel.org/pub/scm/linux/kernel/git/chleroy/linux into soc/drivers

Mon, 18 May 2026 16:59:15 +0200

Merge tag 'soc_fsl-7.1-2' of https://git.kernel.org/pub/scm/linux/kernel/git/chleroy/linux into soc/driversFSL SOC Changes for 7.1Freescale QUICC Engine:- Add missing cleanup on device removal and switch to irq_domain_create_linear()in interrupt controller for IO Ports- Panic on ioremap() failure in qe_reset()Freescale Management Complex:- Move fsl-mc over to device MSI infrastructure- Wait for the MC firmware to complete its bootFreescale Hypervisor:- Fix header kernel-doc warnings* tag 'soc_fsl-7.1-2' of https://git.kernel.org/pub/scm/linux/kernel/git/chleroy/linux: bus: fsl-mc: wait for the MC firmware to complete its boot soc: fsl: qe: panic on ioremap() failure in qe_reset() soc: fsl: qe_ports_ic: switch to irq_domain_create_linear() soc: fsl: qe_ports_ic: Add missing cleanup on device removal virt: fsl_hypervisor: fix header kernel-doc warnings platform-msi: Remove stale comment fsl-mc: Remove legacy MSI implementation fsl-mc: Switch over to per-device platform MSI irqchip/gic-v3-its: Add fsl_mc device plumbing to the msi-parent handling fsl-mc: Add minimal infrastructure to use platform MSI fsl-mc: Remove MSI domain propagation to sub-devicesSigned-off-by: Arnd Bergmann List of files: /linux/drivers/irqchip/Kconfig

76841b0ea8be9309f6f9d2f7cf0dbac3af9ec361 - irqchip/qcom: Unify user-visible "Qualcomm" name

Mon, 27 Apr 2026 09:01:22 +0200

irqchip/qcom: Unify user-visible "Qualcomm" nameVarious names for Qualcomm as a company are used in user-visible configoptions: QCOM, Qualcomm and Qualcomm Technologies.Switch to unified "Qualcomm" so it will be easier for users to identify theoptions when for example running menuconfig.Signed-off-by: Krzysztof Kozlowski Signed-off-by: Thomas Gleixner Link: https://patch.msgid.link/20260427070121.18422-2-krzysztof.kozlowski@oss.qualcomm.com List of files: /linux/drivers/irqchip/Kconfig

ac2005bba8d938c03c3856a96f20afaa42002635 - irqchip/starfive: Rename jh8100 to jhb100

Thu, 16 Apr 2026 08:47:48 +0200

irqchip/starfive: Rename jh8100 to jhb100The StarFive JH8100 SoC was discontinued before production. The newlytaped-out JHB100 SoC uses the same interrupt controller IP. Rename thedriver file, Kconfig symbol, and internal references from "jh8100" to"jhb100" to accurately reflect the supported hardware.Signed-off-by: Changhuang Liang Signed-off-by: Thomas Gleixner Link: https://patch.msgid.link/20260416064751.632138-3-changhuang.liang@starfivetech.com List of files: /linux/drivers/irqchip/Kconfig

46e39ee92d14bf2248d6404119b816047144de4e - irqchip/ast2700-intc: Add KUnit tests for route resolution

Tue, 07 Apr 2026 05:08:06 +0200

irqchip/ast2700-intc: Add KUnit tests for route resolutionAdd a KUnit suite for aspeed_intc0_resolve_route().Cover invalid arguments, invalid domain/range data, connected anddisconnected mappings, and malformed upstream range cases.Signed-off-by: Ryan Chen Signed-off-by: Thomas Gleixner Link: https://patch.msgid.link/20260407-irqchip-v5-3-c0b0a300a057@aspeedtech.com List of files: /linux/drivers/irqchip/Kconfig

07825e41519abb8ac13d6d1c553af47f57775f6b - irqchip/ast2700-intc: Add AST2700-A2 support

Tue, 07 Apr 2026 05:08:05 +0200

irqchip/ast2700-intc: Add AST2700-A2 supportThe AST2700 interrupt fabric is shared by multiple integrated processors(PSP/SSP/TSP/BootMCU), each with its own interrupt controller and its owndevicetree view of the system. As a result, interrupt routing cannot betreated as fixed: the valid route for a peripheral interrupt depends onwhich processor is consuming it.The INTC0 driver models this by creating a hierarchical irqdomain underthe upstream interrupt controller selected by the interrupt-parentproperty in the devicetree. Information derived from this relationshipis incorporated into the route resolution logic for the controller.The INTC1 driver implements the banked INTM-fed controller and forwardsinterrupts toward INTC0, without embedding assumptions about the finaldestination processor.Signed-off-by: Ryan Chen Signed-off-by: Thomas Gleixner Link: https://patch.msgid.link/20260407-irqchip-v5-2-c0b0a300a057@aspeedtech.com List of files: /linux/drivers/irqchip/Kconfig

5d994fd7e2f2e11f134fce0abd900bd02b655f70 - irqchip/loongson-pch-lpc: Enable building on MIPS Loongson64

Sat, 21 Mar 2026 10:20:32 +0100

irqchip/loongson-pch-lpc: Enable building on MIPS Loongson64As the driver now supports OF-based platforms, it's now possible to use iton MIPS Loongson64 machines.Drop the requirement of LOONGARCH for this driver, to allow build onboth MIPS-based and LoongArch-based Loongson systems.Signed-off-by: Icenowy Zheng Signed-off-by: Thomas Gleixner Reviewed-by: Jiaxun Yang Reviewed-by: Huacai Chen Link: https://patch.msgid.link/20260321092032.3502701-7-zhengxingda@iscas.ac.cn List of files: /linux/drivers/irqchip/Kconfig

5e72917802dd65ad1ff57f2158a9d221b4fddf0b - irqchip/imx-irqsteer: Add NXP S32N79 support

Wed, 11 Mar 2026 09:11:52 +0100

irqchip/imx-irqsteer: Add NXP S32N79 supportAdd support for the interrupt steering controller found in NXP S32N79series automotive SoCs.The S32N79 IRQ_STEER variant differs from the i.MX version by notimplementing the CHANCTRL register. To handle this hardware difference,introduce a device type data structure with quirks field. TheIRQSTEER_QUIRK_NO_CHANCTRL quirk skips CHANCTRL register access for S32N79variants.The interrupt routing functionality and register layout are otherwiseidentical between the two variants.Co-developed-by: Larisa Grigore Signed-off-by: Larisa Grigore Signed-off-by: Ciprian Marian Costea Signed-off-by: Thomas Gleixner Link: https://patch.msgid.link/20260311081154.381881-4-ciprianmarian.costea@oss.nxp.com List of files: /linux/drivers/irqchip/Kconfig

14b1cbcc6cec0b02298f4adf717646cd943b7ef6 - fsl-mc: Remove legacy MSI implementation

Tue, 24 Feb 2026 11:09:35 +0100

fsl-mc: Remove legacy MSI implementationGet rid of most of the fsl_mc MSI infrastructure, which is now replacedby common code.Reviewed-by: Ioana Ciornei Tested-by: Ioana Ciornei # LX2160ARDB, LS2088ARDBTested-by: Sascha Bischoff Signed-off-by: Marc Zyngier Acked-by: Thomas Gleixner Link: https://lore.kernel.org/r/20260224100936.3752303-6-maz@kernel.orgSigned-off-by: Christophe Leroy (CS GROUP) List of files: /linux/drivers/irqchip/Kconfig

4b52df1b4e1d9cf4cb5a8e1b5287d1e3d1a6aa0c - irqchip/irq-pic32-evic: Allow driver to be compiled with COMPILE_TEST

Mon, 23 Feb 2026 00:43:48 +0100

irqchip/irq-pic32-evic: Allow driver to be compiled with COMPILE_TESTThis driver currently only supports builds against a PIC32 target. To avoidfuture breakage in the future update Kconfig so that it can be built withCOMPILE_TEST enabled.[ tglx: Drop the now pointless select in the pic32 Kconfig ]Signed-off-by: Brian Masney Signed-off-by: Thomas Gleixner Link: https://patch.msgid.link/20260222-irqchip-pic32-v1-5-37f50d1f14af@redhat.com List of files: /linux/drivers/irqchip/Kconfig

a34d398c83a4a4bc00513c00f6eecc34267f834f - irqchip: Allow LoongArch irqchip drivers on both 32BIT/64BIT

Tue, 13 Jan 2026 09:59:40 +0100

irqchip: Allow LoongArch irqchip drivers on both 32BIT/64BITAll LoongArch irqchip drivers are adjusted, allow them to be built on both32BIT and 64BIT platforms.Co-developed-by: Jiaxun Yang Signed-off-by: Jiaxun Yang Signed-off-by: Huacai Chen Signed-off-by: Thomas Gleixner Link: https://patch.msgid.link/20260113085940.3344837-8-chenhuacai@loongson.cn List of files: /linux/drivers/irqchip/Kconfig

13e7b3305b647cf58c47c979fe8a04e08caa6098 - irqchip: Add RZ/{T2H,N2H} Interrupt Controller (ICU) driver

Mon, 01 Dec 2025 12:29:31 +0100

irqchip: Add RZ/{T2H,N2H} Interrupt Controller (ICU) driverThe Renesas RZ/T2H (R9A09G077) and Renesas RZ/N2H (R9A09G087) SoCs have anInterrupt Controller (ICU) that supports interrupts from external pins IRQ0to IRQ15, and SEI, and software-triggered interrupts INTCPU0 to INTCPU15.INTCPU0 to INTCPU13, IRQ0 to IRQ13 are non-safety interrupts, whileINTCPU14, INTCPU15, IRQ14, IRQ15 and SEI are safety interrupts, and areexposed via a separate register space.Signed-off-by: Cosmin Tanislav Signed-off-by: Thomas Gleixner Link: https://patch.msgid.link/20251201112933.488801-3-cosmin-gabriel.tanislav.xa@renesas.com List of files: /linux/drivers/irqchip/Kconfig

15b87bec89cb227b55b3689bf5de31b85cf88559 - Merge tag 'irq-drivers-2025-11-30' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Tue, 02 Dec 2025 18:32:53 +0100

Merge tag 'irq-drivers-2025-11-30' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipPull irq driver updates from Thomas Gleixner: "Boring updates for interrupt drivers: - Support for a couple of new ARM64 and RISCV SoC variants and their magic interrupt controllers which either can reuse existing code or require quirks due to a botched hardware implementation - More section mismatch fixes - The usual cleanups and fixes all over the place"* tag 'irq-drivers-2025-11-30' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (32 commits) irqchip/meson-gpio: Add support for Amlogic S6 S7 and S7D SoCs dt-bindings: interrupt-controller: Add support for Amlogic S6 S7 and S7D SoCs dt-bindings: interrupt-controller: aspeed,ast2700: Correct #interrupt-cells and interrupts count irqchip/aclint-sswi: Add Nuclei UX900 support dt-bindings: interrupt-controller: Add Anlogic DR1V90 ACLINT SSWI dt-bindings: interrupt-controller: Add Anlogic DR1V90 ACLINT MSWI dt-bindings: interrupt-controller: Add Anlogic DR1V90 PLIC irqchip/irq-bcm7038-l1: Remove unused reg_mask_status() irqchip/sifive-plic: Fix call to __plic_toggle() in M-Mode code path irqchip/sifive-plic: Add support for UltraRISC DP1000 PLIC irqchip/sifive-plic: Cache the interrupt enable state dt-bindings: interrupt-controller: Add UltraRISC DP1000 PLIC dt-bindings: vendor-prefixes: Add UltraRISC irqchip/qcom-irq-combiner: Rename driver structure irqchip/riscv-imsic: Inline imsic_vector_from_local_id() irqchip/riscv-imsic: Embed the vector array in lpriv irqchip/riscv-imsic: Remove redundant irq_data lookups irqchip/ts4800: Drop unused module alias irqchip/mvebu-pic: Drop unused module alias irqchip/meson-gpio: Drop unused module alias ... List of files: /linux/drivers/irqchip/Kconfig

c620438ef2ac80b09269a9ae3c0b4fe5add19bfe - irqchip: Kill irq-partition-percpu

Mon, 20 Oct 2025 14:29:40 +0200

irqchip: Kill irq-partition-percpuThis code is now completely unused, and nobody will ever miss it.Signed-off-by: Marc Zyngier Signed-off-by: Thomas Gleixner Tested-by: Will Deacon Link: https://patch.msgid.link/20251020122944.3074811-24-maz@kernel.org List of files: /linux/drivers/irqchip/Kconfig

64b9738eaa937232f2567fd55bbb4fc1a00242ea - irqchip/gic-v3: Drop support for custom PPI partitions

Mon, 20 Oct 2025 14:29:38 +0200

irqchip/gic-v3: Drop support for custom PPI partitionsThe only thing getting in the way of correctly handling PPIs the way theywere intended is the GICv3 hack that deals with PPI partitions.Remove that code, allowing the common code to kick in.Signed-off-by: Marc Zyngier Signed-off-by: Thomas Gleixner Tested-by: Will Deacon Link: https://patch.msgid.link/20251020122944.3074811-22-maz@kernel.org List of files: /linux/drivers/irqchip/Kconfig

1230fbb225abf3f04c64697c6b0f8dfb473b3790 - irqchip: Enable compile testing of Broadcom drivers

Mon, 13 Oct 2025 11:50:27 +0200

irqchip: Enable compile testing of Broadcom driversThere seems to be nothing preventing the Broadcom drivers from beingcompile tested so enable that for wider build coverage.Signed-off-by: Johan Hovold Signed-off-by: Thomas Gleixner Reviewed-by: Florian Fainelli List of files: /linux/drivers/irqchip/Kconfig

4752b0cfbc37a4e62e583bd8723b1fc2fe8df319 - irqchip/riscv-rpmi-sysmsi: Add ACPI support

Mon, 18 Aug 2025 06:09:18 +0200

irqchip/riscv-rpmi-sysmsi: Add ACPI supportAdd ACPI support for the RISC-V RPMI system MSI based irqchip driver.Reviewed-by: Thomas Gleixner Signed-off-by: Sunil V L Signed-off-by: Anup Patel Acked-by: Jassi Brar Link: https://lore.kernel.org/r/20250818040920.272664-23-apatel@ventanamicro.comSigned-off-by: Paul Walmsley List of files: /linux/drivers/irqchip/Kconfig

aa43953e862c031ff66e44353c88beb7a449e80d - irqchip: Add driver for the RPMI system MSI service group

Mon, 18 Aug 2025 06:09:09 +0200

irqchip: Add driver for the RPMI system MSI service groupThe RPMI specification defines a system MSI service group whichallows application processors to receive MSIs upon system eventssuch as graceful shutdown/reboot request, CPU hotplug event, memoryhotplug event, etc.Add an irqchip driver for the RISC-V RPMI system MSI service groupto directly receive system MSIs in Linux kernel.Reviewed-by: Thomas Gleixner Signed-off-by: Anup Patel Link: https://lore.kernel.org/r/20250818040920.272664-14-apatel@ventanamicro.comSigned-off-by: Paul Walmsley List of files: /linux/drivers/irqchip/Kconfig

3b6a18f0da8720d612d8a682ea5c55870da068e0 - irqchip: Build IMX_MU_MSI only on ARM

Tue, 05 Aug 2025 18:09:49 +0200

irqchip: Build IMX_MU_MSI only on ARMCompile-testing IMX_MU_MSI on x86 without PCI_MSI support results in abuild failure:drivers/gpio/gpio-sprd.c:8:include/linux/gpio/driver.h:41:33: error: field 'msiinfo' has incomplete typedrivers/iommu/iommufd/viommu.c:4:include/linux/msi.h:528:33: error: field 'alloc_info' has incomplete typeTighten the dependency further to only allow compile testing on Arm.This could be refined further to allow certain x86 configs.This was submitted before to address a different build failure, which wasfixed differently, but the problem has now returned in a different form.Fixes: 70afdab904d2d1e6 ("irqchip: Add IMX MU MSI controller driver")Signed-off-by: Arnd Bergmann Signed-off-by: Thomas Gleixner Link: https://lore.kernel.org/all/20250805160952.4006075-1-arnd@kernel.orgLink: https://lore.kernel.org/all/20221215164109.761427-1-arnd@kernel.org/ List of files: /linux/drivers/irqchip/Kconfig

63eb28bb1402891b1ad2be02a530f29a9dd7f1cd - Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm

Thu, 31 Jul 2025 02:14:01 +0200

Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvmPull kvm updates from Paolo Bonzini: "ARM: - Host driver for GICv5, the next generation interrupt controller for arm64, including support for interrupt routing, MSIs, interrupt translation and wired interrupts - Use FEAT_GCIE_LEGACY on GICv5 systems to virtualize GICv3 VMs on GICv5 hardware, leveraging the legacy VGIC interface - Userspace control of the 'nASSGIcap' GICv3 feature, allowing userspace to disable support for SGIs w/o an active state on hardware that previously advertised it unconditionally - Map supporting endpoints with cacheable memory attributes on systems with FEAT_S2FWB and DIC where KVM no longer needs to perform cache maintenance on the address range - Nested support for FEAT_RAS and FEAT_DoubleFault2, allowing the guest hypervisor to inject external aborts into an L2 VM and take traps of masked external aborts to the hypervisor - Convert more system register sanitization to the config-driven implementation - Fixes to the visibility of EL2 registers, namely making VGICv3 system registers accessible through the VGIC device instead of the ONE_REG vCPU ioctls - Various cleanups and minor fixes LoongArch: - Add stat information for in-kernel irqchip - Add tracepoints for CPUCFG and CSR emulation exits - Enhance in-kernel irqchip emulation - Various cleanups RISC-V: - Enable ring-based dirty memory tracking - Improve perf kvm stat to report interrupt events - Delegate illegal instruction trap to VS-mode - MMU improvements related to upcoming nested virtualization s390x - Fixes x86: - Add CONFIG_KVM_IOAPIC for x86 to allow disabling support for I/O APIC, PIC, and PIT emulation at compile time - Share device posted IRQ code between SVM and VMX and harden it against bugs and runtime errors - Use vcpu_idx, not vcpu_id, for GA log tag/metadata, to make lookups O(1) instead of O(n) - For MMIO stale data mitigation, track whether or not a vCPU has access to (host) MMIO based on whether the page tables have MMIO pfns mapped; using VFIO is prone to false negatives - Rework the MSR interception code so that the SVM and VMX APIs are more or less identical - Recalculate all MSR intercepts from scratch on MSR filter changes, instead of maintaining shadow bitmaps - Advertise support for LKGS (Load Kernel GS base), a new instruction that's loosely related to FRED, but is supported and enumerated independently - Fix a user-triggerable WARN that syzkaller found by setting the vCPU in INIT_RECEIVED state (aka wait-for-SIPI), and then putting the vCPU into VMX Root Mode (post-VMXON). Trying to detect every possible path leading to architecturally forbidden states is hard and even risks breaking userspace (if it goes from valid to valid state but passes through invalid states), so just wait until KVM_RUN to detect that the vCPU state isn't allowed - Add KVM_X86_DISABLE_EXITS_APERFMPERF to allow disabling interception of APERF/MPERF reads, so that a "properly" configured VM can access APERF/MPERF. This has many caveats (APERF/MPERF cannot be zeroed on vCPU creation or saved/restored on suspend and resume, or preserved over thread migration let alone VM migration) but can be useful whenever you're interested in letting Linux guests see the effective physical CPU frequency in /proc/cpuinfo - Reject KVM_SET_TSC_KHZ for vm file descriptors if vCPUs have been created, as there's no known use case for changing the default frequency for other VM types and it goes counter to the very reason why the ioctl was added to the vm file descriptor. And also, there would be no way to make it work for confidential VMs with a "secure" TSC, so kill two birds with one stone - Dynamically allocation the shadow MMU's hashed page list, and defer allocating the hashed list until it's actually needed (the TDP MMU doesn't use the list) - Extract many of KVM's helpers for accessing architectural local APIC state to common x86 so that they can be shared by guest-side code for Secure AVIC - Various cleanups and fixes x86 (Intel): - Preserve the host's DEBUGCTL.FREEZE_IN_SMM when running the guest. Failure to honor FREEZE_IN_SMM can leak host state into guests - Explicitly check vmcs12.GUEST_DEBUGCTL on nested VM-Enter to prevent L1 from running L2 with features that KVM doesn't support, e.g. BTF x86 (AMD): - WARN and reject loading kvm-amd.ko instead of panicking the kernel if the nested SVM MSRPM offsets tracker can't handle an MSR (which is pretty much a static condition and therefore should never happen, but still) - Fix a variety of flaws and bugs in the AVIC device posted IRQ code - Inhibit AVIC if a vCPU's ID is too big (relative to what hardware supports) instead of rejecting vCPU creation - Extend enable_ipiv module param support to SVM, by simply leaving IsRunning clear in the vCPU's physical ID table entry - Disable IPI virtualization, via enable_ipiv, if the CPU is affected by erratum #1235, to allow (safely) enabling AVIC on such CPUs - Request GA Log interrupts if and only if the target vCPU is blocking, i.e. only if KVM needs a notification in order to wake the vCPU - Intercept SPEC_CTRL on AMD if the MSR shouldn't exist according to the vCPU's CPUID model - Accept any SNP policy that is accepted by the firmware with respect to SMT and single-socket restrictions. An incompatible policy doesn't put the kernel at risk in any way, so there's no reason for KVM to care - Drop a superfluous WBINVD (on all CPUs!) when destroying a VM and use WBNOINVD instead of WBINVD when possible for SEV cache maintenance - When reclaiming memory from an SEV guest, only do cache flushes on CPUs that have ever run a vCPU for the guest, i.e. don't flush the caches for CPUs that can't possibly have cache lines with dirty, encrypted data Generic: - Rework irqbypass to track/match producers and consumers via an xarray instead of a linked list. Using a linked list leads to O(n^2) insertion times, which is hugely problematic for use cases that create large numbers of VMs. Such use cases typically don't actually use irqbypass, but eliminating the pointless registration is a future problem to solve as it likely requires new uAPI - Track irqbypass's "token" as "struct eventfd_ctx *" instead of a "void *", to avoid making a simple concept unnecessarily difficult to understand - Decouple device posted IRQs from VFIO device assignment, as binding a VM to a VFIO group is not a requirement for enabling device posted IRQs - Clean up and document/comment the irqfd assignment code - Disallow binding multiple irqfds to an eventfd with a priority waiter, i.e. ensure an eventfd is bound to at most one irqfd through the entire host, and add a selftest to verify eventfd:irqfd bindings are globally unique - Add a tracepoint for KVM_SET_MEMORY_ATTRIBUTES to help debug issues related to private <=> shared memory conversions - Drop guest_memfd's .getattr() implementation as the VFS layer will call generic_fillattr() if inode_operations.getattr is NULL - Fix issues with dirty ring harvesting where KVM doesn't bound the processing of entries in any way, which allows userspace to keep KVM in a tight loop indefinitely - Kill off kvm_arch_{start,end}_assignment() and x86's associated tracking, now that KVM no longer uses assigned_device_count as a heuristic for either irqbypass usage or MDS mitigation Selftests: - Fix a comment typo - Verify KVM is loaded when getting any KVM module param so that attempting to run a selftest without kvm.ko loaded results in a SKIP message about KVM not being loaded/enabled (versus some random parameter not existing) - Skip tests that hit EACCES when attempting to access a file, and print a "Root required?" help message. In most cases, the test just needs to be run with elevated permissions"* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (340 commits) Documentation: KVM: Use unordered list for pre-init VGIC registers RISC-V: KVM: Avoid re-acquiring memslot in kvm_riscv_gstage_map() RISC-V: KVM: Use find_vma_intersection() to search for intersecting VMAs RISC-V: perf/kvm: Add reporting of interrupt events RISC-V: KVM: Enable ring-based dirty memory tracking RISC-V: KVM: Fix inclusion of Smnpm in the guest ISA bitmap RISC-V: KVM: Delegate illegal instruction fault to VS mode RISC-V: KVM: Pass VMID as parameter to kvm_riscv_hfence_xyz() APIs RISC-V: KVM: Factor-out g-stage page table management RISC-V: KVM: Add vmid field to struct kvm_riscv_hfence RISC-V: KVM: Introduce struct kvm_gstage_mapping RISC-V: KVM: Factor-out MMU related declarations into separate headers RISC-V: KVM: Use ncsr_xyz() in kvm_riscv_vcpu_trap_redirect() RISC-V: KVM: Implement kvm_arch_flush_remote_tlbs_range() RISC-V: KVM: Don't flush TLB when PTE is unchanged RISC-V: KVM: Replace KVM_REQ_HFENCE_GVMA_VMID_ALL with KVM_REQ_TLB_FLUSH RISC-V: KVM: Rename and move kvm_riscv_local_tlb_sanitize() RISC-V: KVM: Drop the return value of kvm_riscv_vcpu_aia_init() RISC-V: KVM: Check kvm_riscv_vcpu_alloc_vector_context() return value KVM: arm64: selftests: Add FEAT_RAS EL2 registers to get-reg-list ... List of files: /linux/drivers/irqchip/Kconfig