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 D6D23C282CE for ; Mon, 8 Apr 2019 08:14:06 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id B2A5920870 for ; Mon, 8 Apr 2019 08:14:06 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726592AbfDHIOF (ORCPT ); Mon, 8 Apr 2019 04:14:05 -0400 Received: from mga01.intel.com ([192.55.52.88]:12779 "EHLO mga01.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725877AbfDHIOF (ORCPT ); Mon, 8 Apr 2019 04:14:05 -0400 X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga003.fm.intel.com ([10.253.24.29]) by fmsmga101.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 08 Apr 2019 01:14:04 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.60,324,1549958400"; d="scan'208";a="147424247" Received: from genxtest-ykzhao.sh.intel.com ([10.239.143.71]) by FMSMGA003.fm.intel.com with ESMTP; 08 Apr 2019 01:14:03 -0700 From: Zhao Yakui To: linux-kernel@vger.kernel.org Cc: x86@kernel.org, tglx@linutronix.de, Zhao Yakui Subject: [RFC PATCH v3 0/4] x86: Add the support of ACRN guest under arch/x86 Date: Mon, 8 Apr 2019 16:12:07 +0800 Message-Id: <1554711131-21514-1-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. v1->v2: Change the CONFIG_ACRN to CONFIG_ACRN_GUEST, which makes it easy to understand. Remove the export of x86_hyper_acrn. Remove the unused API definition of acrn_setup_intr_handler and acrn_remove_intr_handler. Adjust the order of header file Add the declaration of acrn_hv_vector_handler and tracing definition of acrn_hv_callback_vector. Refine the comments for the function of acrn_hypercall0/1/2 v2-v3: Add one new config symbol to unify the conditional definition of hv_irq_callback_count Use the "vmcall" mnemonic to replace the hard-code byte definition Remove the unnecessary dependency of CONFIG_PARAVIRT for ACRN_GUEST Zhao Yakui (4): x86: Add new config symbol to unify conditional definition of hv_irq_callback_count x86: Add the support of ACRN guest x86: Use HYPERVISOR_CALLBACK_VECTOR for acrn_guest upcall vector x86: Add hypercall for acrn_guest arch/x86/Kconfig | 12 +++++ arch/x86/entry/entry_64.S | 5 +++ arch/x86/include/asm/acrn_hypercall.h | 82 +++++++++++++++++++++++++++++++++++ arch/x86/include/asm/acrnhyper.h | 19 ++++++++ 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 | 57 ++++++++++++++++++++++++ arch/x86/kernel/cpu/hypervisor.c | 4 ++ arch/x86/kernel/irq.c | 2 +- arch/x86/xen/Kconfig | 1 + drivers/hv/Kconfig | 1 + 12 files changed, 185 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