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 mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id C1B28C433FE for ; Thu, 14 Oct 2021 15:54:26 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id ABD7C61056 for ; Thu, 14 Oct 2021 15:54:26 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232934AbhJNP4a (ORCPT ); Thu, 14 Oct 2021 11:56:30 -0400 Received: from linux.microsoft.com ([13.77.154.182]:44752 "EHLO linux.microsoft.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230109AbhJNP41 (ORCPT ); Thu, 14 Oct 2021 11:56:27 -0400 Received: by linux.microsoft.com (Postfix, from userid 1109) id AA62B20B9CE1; Thu, 14 Oct 2021 08:54:22 -0700 (PDT) DKIM-Filter: OpenDKIM Filter v2.11.0 linux.microsoft.com AA62B20B9CE1 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.microsoft.com; s=default; t=1634226862; bh=YB4I9rUAK3vcnSkYOnr2ykSIPEEhXjSjXcsDdSboAQo=; h=From:To:Cc:Subject:Date:From; b=hS8fnk9MmAXTyDVelMauVGvEOmFVK0iOhQ0n/OU73QTdoMaUoF3GKWYcOF8f/ueMl SC+kx7Zc8sTZQmRSBZHC70LT1SJJUze7w4mR7NJ12C5NWD1/WUxwGkPXZj5Ysk4RqM 7cu2YpyLYkIBctMPDMLriNI79ATRVi+XmICTV2GI= From: Sunil Muthuswamy To: kys@microsoft.com, haiyangz@microsoft.com, sthemmin@microsoft.com, wei.liu@kernel.org, maz@kernel.org, decui@microsoft.com, tglx@linutronix.de, mingo@redhat.com, bp@alien8.de, hpa@zytor.com, lorenzo.pieralisi@arm.com, robh@kernel.org, kw@linux.com, bhelgaas@google.com, arnd@arndb.de Cc: x86@kernel.org, linux-kernel@vger.kernel.org, linux-hyperv@vger.kernel.org, linux-pci@vger.kernel.org, linux-arch@vger.kernel.org, Sunil Muthuswamy Subject: [PATCH v3 0/2] PCI: hv: Hyper-V vPCI for ARM64 Date: Thu, 14 Oct 2021 08:53:12 -0700 Message-Id: <1634226794-9540-1-git-send-email-sunilmut@linux.microsoft.com> X-Mailer: git-send-email 1.8.3.1 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Sunil Muthuswamy Current Hyper-V vPCI code only compiles and works for x64. There are some hardcoded assumptions about the architectural IRQ chip and other arch defines. Add support for Hyper-V vPCI for ARM64 by first breaking the current hard coded dependency using a set of new interfaces and implementing those for X64 first. That is in the first patch. The second patch adds support for Hyper-V vPCI for ARM64 by implementing the above mentioned interfaces. That is done by introducing a Hyper-V vPCI specific MSI IRQ domain & chip for allocating SPI vectors. changes in v1 -> v2: - Moved the irqchip implementation to drivers/pci as suggested by Marc Zyngier - Addressed Multi-MSI handling issues identified by Marc Zyngier - Addressed lock/synchronization primitive as suggested by Marc Zyngier - Addressed other code feedback from Marc Zyngier changes in v2 -> v3: - Addressed comments from Bjorn Helgaas about patch formatting and verbiage - Using 'git send-email' to ensure that the patch series is correctly threaded. Feedback by Bjorn Helgaas - Fixed Hyper-V vPCI build break for module build, reported by Boqun Feng Sunil Muthuswamy (2): PCI: hv: Make the code arch neutral by adding arch specific interfaces arm64: PCI: hv: Add support for Hyper-V vPCI MAINTAINERS | 2 + arch/arm64/include/asm/hyperv-tlfs.h | 9 + arch/x86/include/asm/hyperv-tlfs.h | 33 +++ arch/x86/include/asm/mshyperv.h | 7 - drivers/pci/Kconfig | 2 +- drivers/pci/controller/Kconfig | 2 +- drivers/pci/controller/Makefile | 2 +- drivers/pci/controller/pci-hyperv-irqchip.c | 267 ++++++++++++++++++++ drivers/pci/controller/pci-hyperv-irqchip.h | 20 ++ drivers/pci/controller/pci-hyperv.c | 58 +++-- include/asm-generic/hyperv-tlfs.h | 33 --- 11 files changed, 373 insertions(+), 62 deletions(-) create mode 100644 drivers/pci/controller/pci-hyperv-irqchip.c create mode 100644 drivers/pci/controller/pci-hyperv-irqchip.h base-commit: e4e737bb5c170df6135a127739a9e6148ee3da82 -- 2.25.1