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=-16.4 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=unavailable 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 11F15C433ED for ; Fri, 7 May 2021 06:41:37 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id D0ED060E09 for ; Fri, 7 May 2021 06:41:36 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234845AbhEGGmf (ORCPT ); Fri, 7 May 2021 02:42:35 -0400 Received: from us-smtp-delivery-124.mimecast.com ([170.10.133.124]:23120 "EHLO us-smtp-delivery-124.mimecast.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233866AbhEGGmT (ORCPT ); Fri, 7 May 2021 02:42:19 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1620369679; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=88N+p1H52aFWa1qAO1bnhEhJK9rOvXpt4szntFewDdM=; b=h2WvniFsElCVPzzWN0dFGWw2p494GgmbQjfY28s6YNh2ow99qLc4hF/n3Ifem6kGCFmvz4 +4dOU66+s8Ntz2/vAoI8U7LCMQr9q5jvUug7BuUMW9mYrJ1YMM5vkT5q3tzvHPdXg+7jpQ CFyQ9BvatRav97ADvd7IDojQSjjCAnM= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-286-eda0cuRFPvewr91rTXBsmQ-1; Fri, 07 May 2021 02:41:17 -0400 X-MC-Unique: eda0cuRFPvewr91rTXBsmQ-1 Received: from smtp.corp.redhat.com (int-mx06.intmail.prod.int.phx2.redhat.com [10.5.11.16]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 4D6F5107ACC7; Fri, 7 May 2021 06:41:16 +0000 (UTC) Received: from gshan.redhat.com (vpn2-54-42.bne.redhat.com [10.64.54.42]) by smtp.corp.redhat.com (Postfix) with ESMTP id B48625C276; Fri, 7 May 2021 06:41:13 +0000 (UTC) From: Gavin Shan To: kvmarm@lists.cs.columbia.edu Cc: linux-kernel@vger.kernel.org, maz@kernel.org, will@kernel.org, pbonzini@redhat.com, james.morse@arm.com, mark.rutland@arm.com, Jonathan.Cameron@huawei.com, shan.gavin@gmail.com Subject: [PATCH v3 06/15] KVM: arm64: Add paravirtualization header files Date: Fri, 7 May 2021 16:40:44 +0800 Message-Id: <20210507084053.44407-7-gshan@redhat.com> In-Reply-To: <20210507084053.44407-1-gshan@redhat.com> References: <20210507084053.44407-1-gshan@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Scanned-By: MIMEDefang 2.79 on 10.5.11.16 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org We need put more stuff in the paravirtualization header files when the asynchronous page fault is supported. The generic header files can't meet the goal. This duplicate the generic header files to be our platform specific header files. It's the preparatory work to support the asynchronous page fault in the subsequent patches: include/uapi/asm-generic/kvm_para.h include/asm-generic/kvm_para.h arch/arm64/include/uapi/asm/kvm_para.h arch/arm64/include/asm/kvm_para.h Signed-off-by: Gavin Shan --- arch/arm64/include/asm/kvm_para.h | 27 ++++++++++++++++++++++++++ arch/arm64/include/uapi/asm/Kbuild | 2 -- arch/arm64/include/uapi/asm/kvm_para.h | 5 +++++ 3 files changed, 32 insertions(+), 2 deletions(-) create mode 100644 arch/arm64/include/asm/kvm_para.h create mode 100644 arch/arm64/include/uapi/asm/kvm_para.h diff --git a/arch/arm64/include/asm/kvm_para.h b/arch/arm64/include/asm/kvm_para.h new file mode 100644 index 000000000000..0ea481dd1c7a --- /dev/null +++ b/arch/arm64/include/asm/kvm_para.h @@ -0,0 +1,27 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef _ASM_ARM_KVM_PARA_H +#define _ASM_ARM_KVM_PARA_H + +#include + +static inline bool kvm_check_and_clear_guest_paused(void) +{ + return false; +} + +static inline unsigned int kvm_arch_para_features(void) +{ + return 0; +} + +static inline unsigned int kvm_arch_para_hints(void) +{ + return 0; +} + +static inline bool kvm_para_available(void) +{ + return false; +} + +#endif /* _ASM_ARM_KVM_PARA_H */ diff --git a/arch/arm64/include/uapi/asm/Kbuild b/arch/arm64/include/uapi/asm/Kbuild index 602d137932dc..f66554cd5c45 100644 --- a/arch/arm64/include/uapi/asm/Kbuild +++ b/arch/arm64/include/uapi/asm/Kbuild @@ -1,3 +1 @@ # SPDX-License-Identifier: GPL-2.0 - -generic-y += kvm_para.h diff --git a/arch/arm64/include/uapi/asm/kvm_para.h b/arch/arm64/include/uapi/asm/kvm_para.h new file mode 100644 index 000000000000..cd212282b90c --- /dev/null +++ b/arch/arm64/include/uapi/asm/kvm_para.h @@ -0,0 +1,5 @@ +/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ +#ifndef _UAPI_ASM_ARM_KVM_PARA_H +#define _UAPI_ASM_ARM_KVM_PARA_H + +#endif /* _UAPI_ASM_ARM_KVM_PARA_H */ -- 2.23.0