kernel/linux.git/drivers/irqchip, branch v7.0-rc7

irqchip/riscv-aplic: Restrict genpd notifier to device tree only

2026-03-31T08:11:29+00:00

On ACPI systems, the aplic's pm_domain is set to acpi_general_pm_domain, which provides its own power management callbacks (e.g., runtime_suspend via acpi_subsys_runtime_suspend). aplic_pm_add() unconditionally calls dev_pm_genpd_add_notifier() when dev->pm_domain is non‑NULL, leading to a comparison between runtime_suspend and genpd_runtime_suspend. This results in the following errors when ACPI is enabled: riscv-aplic RSCV0002:00: failed to create APLIC context riscv-aplic RSCV0002:00: error -ENODEV: failed to setup APLIC in MSI mode Fix this by checking for dev->of_node before adding or removing the genpd notifier, ensuring it is only used for device tree based systems. Fixes: 95a8ddde3660 ("irqchip/riscv-aplic: Preserve APLIC states across suspend/resume") Signed-off-by: Jessica Liu Signed-off-by: Thomas Gleixner Link: https://patch.msgid.link/20260331093029749vRpdH-0qoEqjS0Wnn9M4x@zte.com.cn

Merge tag 'irq-urgent-2026-03-29' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2026-03-29T16:53:01+00:00

Pull irq fixes from Ingo Molnar: - Fix TX completion signaling bug in the Qualcomm MPM irqchip driver - Fix probe error handling in the Renesas RZ/V2H(P) irqchip driver * tag 'irq-urgent-2026-03-29' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: irqchip/renesas-rzv2h: Fix error path in rzv2h_icu_probe_common() irqchip/qcom-mpm: Add missing mailbox TX done acknowledgment

irqchip/renesas-rzv2h: Fix error path in rzv2h_icu_probe_common()

2026-03-26T15:12:01+00:00

Replace pm_runtime_put() with pm_runtime_put_sync() when irq_domain_create_hierarchy() fails to ensure the device suspends synchronously before devres cleanup disables runtime PM via pm_runtime_disable(). Fixes: 5ec8cabc3b86 ("irqchip/renesas-rzv2h: Use devm_pm_runtime_enable()") Signed-off-by: Biju Das Signed-off-by: Thomas Gleixner Link: https://patch.msgid.link/20260323124917.41602-1-biju.das.jz@bp.renesas.com

irqchip/qcom-mpm: Add missing mailbox TX done acknowledgment

2026-03-26T15:11:53+00:00

The mbox_client for qcom-mpm sends NULL doorbell messages via mbox_send_message() but never signals TX completion. Set knows_txdone=true and call mbox_client_txdone() after a successful send, matching the pattern used by other Qualcomm mailbox clients (smp2p, smsm, qcom_aoss etc). Fixes: a6199bb514d8a6 "irqchip: Add Qualcomm MPM controller driver" Signed-off-by: Jassi Brar Signed-off-by: Thomas Gleixner Reviewed-by: Douglas Anderson Cc: stable@vger.kernel.org Link: https://patch.msgid.link/20260322171533.608436-1-jassisinghbrar@gmail.com

irqchip/riscv-rpmi-sysmsi: Fix mailbox channel leak in rpmi_sysmsi_probe()

2026-03-17T10:16:15+00:00

When riscv_acpi_get_gsi_info() fails, the mailbox channel previously requested via mbox_request_channel() is not freed. Add the missing mbox_free_channel() call to prevent the resource leak. Fixes: 4752b0cfbc37 ("irqchip/riscv-rpmi-sysmsi: Add ACPI support") Signed-off-by: Felix Gu Signed-off-by: Thomas Gleixner Cc: stable@vger.kernel.org Reviewed-by: Rahul Pathak Link: https://patch.msgid.link/20260315-sysmsi-v1-1-5f090c86c2ca@gmail.com

irqchip/riscv-aplic: Register syscore operations only once

2026-03-10T17:42:34+00:00

Since commit 95a8ddde3660 ("irqchip/riscv-aplic: Preserve APLIC states across suspend/resume"), when multiple NUMA nodes exist and AIA is not configured as "none", aplic_probe() is called multiple times. This leads to register_syscore(&aplic_syscore) being invoked repeatedly, causing the following Oops: list_add double add: new=ffffffffb91461f0, prev=ffffffffb91461f0, next=ffffffffb915c408. [] __list_add_valid_or_report+0x60/0xc0 [] register_syscore+0x3e/0x70 [] aplic_probe+0xc6/0x112 Fix this by registering syscore operations only once, using a static variable aplic_syscore_registered to track registration. [ tglx: Trim backtrace properly ] Fixes: 95a8ddde3660 ("irqchip/riscv-aplic: Preserve APLIC states across suspend/resume") Signed-off-by: Jessica Liu Signed-off-by: Thomas Gleixner Link: https://patch.msgid.link/20260310141731145xMwLsyvXl9Gw-m6A4VRYj@zte.com.cn

irqchip/riscv-aplic: Do not clear ACPI dependencies on probe failure

2026-03-10T17:42:33+00:00

aplic_probe() calls acpi_dev_clear_dependencies() unconditionally at the end, even when the preceding setup (MSI or direct mode) has failed. This is incorrect because if the device failed to probe, it should not be considered as active and should not clear dependencies for other devices waiting on it. Fix this by returning immediately when the setup fails, skipping the ACPI dependency cleanup. Also, explicitly return 0 on success instead of relying on the value of 'rc' to make the success path clear. Fixes: 5122e380c23b ("irqchip/riscv-aplic: Add ACPI support") Signed-off-by: Jessica Liu Signed-off-by: Thomas Gleixner Link: https://patch.msgid.link/20260310141600411Fu8H8-GXOOgKISU48Tjgx@zte.com.cn

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

2026-03-01T23:34:47+00:00

Pull kvm fixes from Paolo Bonzini: "Arm: - Make sure we don't leak any S1POE state from guest to guest when the feature is supported on the HW, but not enabled on the host - Propagate the ID registers from the host into non-protected VMs managed by pKVM, ensuring that the guest sees the intended feature set - Drop double kern_hyp_va() from unpin_host_sve_state(), which could bite us if we were to change kern_hyp_va() to not being idempotent - Don't leak stage-2 mappings in protected mode - Correctly align the faulting address when dealing with single page stage-2 mappings for PAGE_SIZE > 4kB - Fix detection of virtualisation-capable GICv5 IRS, due to the maintainer being obviously fat fingered... [his words, not mine] - Remove duplication of code retrieving the ASID for the purpose of S1 PT handling - Fix slightly abusive const-ification in vgic_set_kvm_info() Generic: - Remove internal Kconfigs that are now set on all architectures - Remove per-architecture code to enable KVM_CAP_SYNC_MMU, all architectures finally enable it in Linux 7.0" * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: KVM: always define KVM_CAP_SYNC_MMU KVM: remove CONFIG_KVM_GENERIC_MMU_NOTIFIER KVM: arm64: Deduplicate ASID retrieval code irqchip/gic-v5: Fix inversion of IRS_IDR0.virt flag KVM: arm64: Revert accidental drop of kvm_uninit_stage2_mmu() for non-NV VMs KVM: arm64: Fix protected mode handling of pages larger than 4kB KVM: arm64: vgic: Handle const qualifier from gic_kvm_info allocation type KVM: arm64: Remove redundant kern_hyp_va() in unpin_host_sve_state() KVM: arm64: Fix ID register initialization for non-protected pKVM guests KVM: arm64: Optimise away S1POE handling when not supported by host KVM: arm64: Hide S1POE from guests when not supported by the host

Merge tag 'irq-urgent-2026-03-01' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2026-03-01T18:58:16+00:00

Pull irqchip driver fixes from Ingo Molnar: - Fix frozen interrupt bug in the sifive-plic driver - Limit per-device MSI interrupts on uncommon gic-v3-its hardware variants - Address Sparse warning by constifying a variable in the MMP driver - Revert broken commit and also fix an error check in the ls-extirq driver * tag 'irq-urgent-2026-03-01' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: irqchip/ls-extirq: Fix devm_of_iomap() error check Revert "irqchip/ls-extirq: Use for_each_of_imap_item iterator" irqchip/mmp: Make icu_irq_chip variable static const irqchip/gic-v3-its: Limit number of per-device MSIs to the range the ITS supports irqchip/sifive-plic: Fix frozen interrupt due to affinity setting

Merge tag 'kvmarm-fixes-7.0-1' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD

2026-02-28T14:33:34+00:00

KVM/arm64 fixes for 7.0, take #1 - Make sure we don't leak any S1POE state from guest to guest when the feature is supported on the HW, but not enabled on the host - Propagate the ID registers from the host into non-protected VMs managed by pKVM, ensuring that the guest sees the intended feature set - Drop double kern_hyp_va() from unpin_host_sve_state(), which could bite us if we were to change kern_hyp_va() to not being idempotent - Don't leak stage-2 mappings in protected mode - Correctly align the faulting address when dealing with single page stage-2 mappings for PAGE_SIZE > 4kB - Fix detection of virtualisation-capable GICv5 IRS, due to the maintainer being obviously fat fingered... - Remove duplication of code retrieving the ASID for the purpose of S1 PT handling - Fix slightly abusive const-ification in vgic_set_kvm_info()