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 X-Spam-Level: X-Spam-Status: No, score=-3.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id E82E9C43381 for ; Thu, 7 Mar 2019 02:04:51 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id B9A3C20854 for ; Thu, 7 Mar 2019 02:04:51 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726698AbfCGCEu (ORCPT ); Wed, 6 Mar 2019 21:04:50 -0500 Received: from mga17.intel.com ([192.55.52.151]:40332 "EHLO mga17.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726524AbfCGCEt (ORCPT ); Wed, 6 Mar 2019 21:04:49 -0500 X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga007.fm.intel.com ([10.253.24.52]) by fmsmga107.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 06 Mar 2019 18:04:49 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.58,450,1544515200"; d="scan'208";a="132216922" Received: from genxtest-ykzhao.sh.intel.com ([10.239.143.71]) by fmsmga007.fm.intel.com with ESMTP; 06 Mar 2019 18:04:48 -0800 From: Zhao Yakui To: linux-kernel@vger.kernel.org, x86@kernel.org Cc: Zhao Yakui Subject: [RFC PATCH 0/3] arch/x86: Add the support of ACRN hypervisor under arch/x86 Date: Thu, 7 Mar 2019 10:04:08 +0800 Message-Id: <1551924251-19466-1-git-send-email-yakui.zhao@intel.com> X-Mailer: git-send-email 2.7.4 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org ACRN is a flexible, lightweight reference hypervisor, built with real-time and safety-criticality in mind, optimized to streamline embedded development through an open source platform. It is built for embedded IOT with small footprint and real-time features. More details can be found in https://projectacrn.org/ This is the patch set that allows the Linux to work on ACRN hypervisor and it can work with the following patch set to manage the Linux guest on acrn-hypervisor. It includes the detection of acrn_hypervisor, upcall notification vector from hypervisor, hypercall. The hypervisor detection is similar to Xen/VMWARE/Hyperv. ACRN also uses the upcall notification mechanism similar to that in Xen/Microsoft HyperV when it needs to send the notification to Linux OS. The hypercall provides the mechanism that can be used to query/configure the acrn-hypervisor by Linux guest. Following this patch set, we will send acrn driver part, which provides the interface that can be used to manage the virtualized CPU/memory/device/interrupt for other guest OS after the acrn hypervisor is detected. Zhao Yakui (3): arch/x86: add ACRN hypervisor guest arch/x86/acrn: Use HYPERVISOR_CALLBACK_VECTOR for Acrn upcall vector arch/x86/acrn: add hypercall for acrn_hypervisor arch/x86/Kconfig | 8 ++++ arch/x86/entry/entry_64.S | 5 +++ arch/x86/include/asm/acrn_hypercall.h | 85 +++++++++++++++++++++++++++++++++++ arch/x86/include/asm/acrnhyper.h | 18 ++++++++ arch/x86/include/asm/hardirq.h | 2 +- arch/x86/include/asm/hypervisor.h | 1 + arch/x86/kernel/cpu/Makefile | 1 + arch/x86/kernel/cpu/acrn.c | 75 +++++++++++++++++++++++++++++++ arch/x86/kernel/cpu/hypervisor.c | 4 ++ arch/x86/kernel/irq.c | 2 +- 10 files changed, 199 insertions(+), 2 deletions(-) create mode 100644 arch/x86/include/asm/acrn_hypercall.h create mode 100644 arch/x86/include/asm/acrnhyper.h create mode 100644 arch/x86/kernel/cpu/acrn.c -- 2.7.4