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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id C8006C433F5 for ; Fri, 27 May 2022 08:05:44 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1344493AbiE0IFm (ORCPT ); Fri, 27 May 2022 04:05:42 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:55892 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1349272AbiE0IFL (ORCPT ); Fri, 27 May 2022 04:05:11 -0400 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.129.124]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id 7C510FD359 for ; Fri, 27 May 2022 01:05:10 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1653638709; 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=0BNXaqWA1otDLXqlPZtOcrW0E3FZ4yYhwe+GYceYi8I=; b=bG71kPMmuBxipT/6fQIisVtCDxwpToSEuzKEkF7t0pEO7p4y1u4sUMc4KHXzPuIaZLHzl8 xY7G3jyTHyyo5HGO2vNai2ntfJIZmKvIkeuXAL/Nvw1zrANCzIxsH3ZhEHYvjqmKZhAGjE rsyUraHmeKzfgUqQdPP+PRsVO8pEEmM= Received: from mimecast-mx02.redhat.com (mx3-rdu2.redhat.com [66.187.233.73]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-37-NQFO-vD3OKS2WgVUIQ3FNg-1; Fri, 27 May 2022 04:05:04 -0400 X-MC-Unique: NQFO-vD3OKS2WgVUIQ3FNg-1 Received: from smtp.corp.redhat.com (int-mx04.intmail.prod.int.rdu2.redhat.com [10.11.54.4]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 211233804506; Fri, 27 May 2022 08:05:04 +0000 (UTC) Received: from gshan.redhat.com (ovpn-12-91.pek2.redhat.com [10.72.12.91]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 391E42026D64; Fri, 27 May 2022 08:04:56 +0000 (UTC) From: Gavin Shan To: kvmarm@lists.cs.columbia.edu Cc: maz@kernel.org, linux-kernel@vger.kernel.org, eauger@redhat.com, oupton@google.com, Jonathan.Cameron@huawei.com, pbonzini@redhat.com, vkuznets@redhat.com, will@kernel.org, james.morse@arm.com, mark.rutland@arm.com, shannon.zhaosl@gmail.com, shijie@amperemail.onmicrosoft.com, shan.gavin@gmail.com Subject: [PATCH v7 10/22] KVM: arm64: Support PE_{MASK, UNMASK} hypercall Date: Fri, 27 May 2022 16:02:41 +0800 Message-Id: <20220527080253.1562538-11-gshan@redhat.com> In-Reply-To: <20220527080253.1562538-1-gshan@redhat.com> References: <20220527080253.1562538-1-gshan@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Scanned-By: MIMEDefang 2.78 on 10.11.54.4 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This supports PE_{MASK, UNMASK} hypercall. When PE_UNMASK is called, KVM_REQ_SDEI request becomes pending if there are any events need to be delivered. Signed-off-by: Gavin Shan --- arch/arm64/kvm/sdei.c | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) diff --git a/arch/arm64/kvm/sdei.c b/arch/arm64/kvm/sdei.c index cea523418c75..6afa49b4f3c7 100644 --- a/arch/arm64/kvm/sdei.c +++ b/arch/arm64/kvm/sdei.c @@ -169,6 +169,21 @@ static unsigned long event_info(struct kvm_vcpu *vcpu) return ret; } +static unsigned long pe_mask(struct kvm_vcpu *vcpu, bool mask) +{ + struct kvm_sdei_vcpu *vsdei = vcpu->arch.sdei; + + if (mask) { + vcpu->arch.flags |= KVM_ARM64_SDEI_MASKED; + } else { + vcpu->arch.flags &= ~KVM_ARM64_SDEI_MASKED; + if (vsdei->pending) + kvm_make_request(KVM_REQ_SDEI, vcpu); + } + + return SDEI_SUCCESS; +} + int kvm_sdei_call(struct kvm_vcpu *vcpu) { struct kvm_sdei_vcpu *vsdei = vcpu->arch.sdei; @@ -208,6 +223,12 @@ int kvm_sdei_call(struct kvm_vcpu *vcpu) case SDEI_1_0_FN_SDEI_EVENT_GET_INFO: ret = event_info(vcpu); break; + case SDEI_1_0_FN_SDEI_PE_MASK: + ret = pe_mask(vcpu, true); + break; + case SDEI_1_0_FN_SDEI_PE_UNMASK: + ret = pe_mask(vcpu, false); + break; default: ret = SDEI_NOT_SUPPORTED; } -- 2.23.0