From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 1285FE7716D for ; Wed, 4 Dec 2024 11:04:23 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: Content-Type:In-Reply-To:From:References:Cc:To:Subject:MIME-Version:Date: Message-ID:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=XrOmyGbo6peEvA/t3cBYlUIganUoIJapy+zrKdaxlBc=; b=L/waJJUcL7VRA8+KwrLA6AaMSJ BlY0WsvTwi2pla5BK0UFgqWfdMNa+S0zJddbvzsFZ6UUWYeL5ijRZoP/tWBPCviN7G8NBXLmsHTfX YzCrMoLlOYcfR3WPuwWdcrhFFGuwAWGxfAAEXVHDfOBzy0vod6Kk8yUVOcchP+OCGcPpnZo/hMMbU rg4CH1KY3cU13qvBCzCdfZ0Aq9TnIz4MlVrOCJylrNwj/SxmrqF/q23reRoEg31On7ZPuglJlEQUN sv517M+nnlQ0IVAui3pEHIQbQPJEGkJ/6Qnl0uaHGEcbjn9mYmfJBlnnC2W03rq4hdn2KS0vX7TZ7 hJXLcsWg==; 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charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20241204_030304_822444_C1812266 X-CRM114-Status: GOOD ( 13.94 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On 30. 11. 24, 21:11, Eliav Farber wrote: > Consolidate the machine_kexec_mask_interrupts implementation into a common > function located in a new file: kernel/irq/kexec.c. This removes duplicate > implementations from architecture-specific files in arch/arm, arch/arm64, > arch/powerpc, and arch/riscv, reducing code duplication and improving > maintainability. > > The new implementation retains architecture-specific behavior for > CONFIG_GENERIC_IRQ_KEXEC_CLEAR_VM_FORWARD, which was previously implemented > for ARM64. When enabled (currently for ARM64), it clears the active state > of interrupts forwarded to virtual machines (VMs) before handling other > interrupt masking operations. ... > --- a/kernel/irq/Kconfig > +++ b/kernel/irq/Kconfig > @@ -154,3 +154,12 @@ config DEPRECATED_IRQ_CPU_ONOFFLINE > bool > depends on CAVIUM_OCTEON_SOC > default CAVIUM_OCTEON_SOC > + > +config GENERIC_IRQ_KEXEC_CLEAR_VM_FORWARD > + bool "Clear forwarded VM interrupts during kexec" > + default n > + help > + When enabled, this option allows the kernel to clear the active state > + of interrupts that are forwarded to virtual machines (VMs) during a > + machine kexec. For interrupts that are not forwarded, if supported, > + the kernel will attempt to trigger an End of Interrupt (EOI). This caught my attention. It looks like you want to allow people toggling it? I believe only arch code should turn it on as you do by "select", not users. thanks, -- js suse labs