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 146C5C433F5 for ; Sun, 1 May 2022 06:55:37 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S242661AbiEAG6l (ORCPT ); Sun, 1 May 2022 02:58:41 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:48370 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236606AbiEAG6i (ORCPT ); Sun, 1 May 2022 02:58:38 -0400 Received: from mail-il1-x130.google.com (mail-il1-x130.google.com [IPv6:2607:f8b0:4864:20::130]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 8ABD23B9 for ; Sat, 30 Apr 2022 23:55:10 -0700 (PDT) Received: by mail-il1-x130.google.com with SMTP id s14so149829ild.6 for ; Sat, 30 Apr 2022 23:55:10 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20210112; h=date:from:to:cc:subject:message-id:references:mime-version :content-disposition:in-reply-to; bh=66d7SyRrONsXl8W4lFBX0N0VrTFcPFH9NXUMscq4ECs=; b=gpPu6skWQ2IhiBwq3C3Wc2ylJ363rdzpeVUcCH8kt9q7dHvFWOJnbcsgRbrOQFYKcv xrJApxsgnQjhM+ch1GfLHZVpgsTsxgUrisEHTgxjKRMkpBQquVQ+/xBVCpfdJ93hA3K/ SgsLTwxHUi4HHmRW9L/hPBCR2UvYVZowMynW9UKHqqyPyLrpYzubdqiO/QUGqdSViE7m z6tL918AfC6MwJ+iX0V19yA3+jIRdVzwhXFkj/UtPLcXe23XsUGoFMHkcSQTHPTEDl1q qTv/u+du++0uQwQVqkWvjlmDbakho2tAf7ecAylV/KuDI4v+JsMZK13/y6YihPVVZ5z+ tgMA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to; bh=66d7SyRrONsXl8W4lFBX0N0VrTFcPFH9NXUMscq4ECs=; b=gKv2Nwp8/jAKSJ7mbotZiuZpB9C39TKmYggIkRuq4hnaAdVZgwnZDu7yKm4udMUXcT RduyRAYY49CXzKJR0+prDBMG2P8zvoB9OS8HYg8rUoe9OzgT3FTiybcrW8LvGHRJCwkr Y0kbZu/UWuYW8DqFMEGUQtevrp5quLdFZDp0cv91z7KCQElK/ut6Z7h44kOVPYzXsPFU g1SoDLz97/agNVHDFr12YLAW6Pam09gIjrzsMRmeViRQ5s6JXKC3Xx4kLDgEO5Oc33FE 1D7Nv7WIfisvcowMzmHQIong4fNB2Uhmr13ovIYtlDGO1XlC0fWKdZ1r+83qAmvi6LyR WiXA== X-Gm-Message-State: AOAM533hBhctLRR6+QUyrsA/c3m6IK79CZLBihPVWnvCY3A1H6bmcbCJ G8ifPBWYhNiYRd8pp5e+o8tw3Q== X-Google-Smtp-Source: ABdhPJxyPVbw+8ZIaPFEomRXrig6kQMnEuxlIz0lgU1En0dO9EeQyCH8axYSrs0P1kc0Cz80nR0P1w== X-Received: by 2002:a05:6e02:160f:b0:2cd:5c76:817e with SMTP id t15-20020a056e02160f00b002cd5c76817emr2859671ilu.133.1651388109758; Sat, 30 Apr 2022 23:55:09 -0700 (PDT) Received: from google.com (194.225.68.34.bc.googleusercontent.com. [34.68.225.194]) by smtp.gmail.com with ESMTPSA id t17-20020a6bdb11000000b0065a47e16f4csm1152530ioc.30.2022.04.30.23.55.08 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 30 Apr 2022 23:55:08 -0700 (PDT) Date: Sun, 1 May 2022 06:55:05 +0000 From: Oliver Upton To: Gavin Shan Cc: kvmarm@lists.cs.columbia.edu, linux-kernel@vger.kernel.org, eauger@redhat.com, Jonathan.Cameron@huawei.com, vkuznets@redhat.com, will@kernel.org, shannon.zhaosl@gmail.com, james.morse@arm.com, mark.rutland@arm.com, maz@kernel.org, pbonzini@redhat.com, shan.gavin@gmail.com Subject: Re: [PATCH v6 15/18] KVM: arm64: Support SDEI_FEATURES hypercall Message-ID: References: <20220403153911.12332-1-gshan@redhat.com> <20220403153911.12332-16-gshan@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20220403153911.12332-16-gshan@redhat.com> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Sun, Apr 03, 2022 at 11:39:08PM +0800, Gavin Shan wrote: > This supports SDEI_FEATURES hypercall. It's used by guest to > retrieve the supported features, which are number of slots for > the interrupt binding events and relative mode for the event > handler. Currently, none of them is supported. > > Signed-off-by: Gavin Shan > --- > arch/arm64/kvm/sdei.c | 20 ++++++++++++++++++++ > 1 file changed, 20 insertions(+) > > diff --git a/arch/arm64/kvm/sdei.c b/arch/arm64/kvm/sdei.c > index e1f6ab9800ee..ab0b7b5e3191 100644 > --- a/arch/arm64/kvm/sdei.c > +++ b/arch/arm64/kvm/sdei.c > @@ -527,6 +527,23 @@ static unsigned long hypercall_reset(struct kvm_vcpu *vcpu, bool private) > return ret; > } > > +static unsigned long hypercall_features(struct kvm_vcpu *vcpu) > +{ > + unsigned long feature = smccc_get_arg(vcpu, 1); > + unsigned long ret; > + > + switch (feature) { > + case 0: /* BIND_SLOTS */ > + case 1: /* RELATIVE_MODE */ Can you create macros for these? -- Thanks, Oliver