From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-ed1-f48.google.com (mail-ed1-f48.google.com [209.85.208.48]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 5FFB87E for ; Wed, 19 Oct 2022 15:52:15 +0000 (UTC) Received: by mail-ed1-f48.google.com with SMTP id q19so25902326edd.10 for ; Wed, 19 Oct 2022 08:52:15 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20210112; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:from:to:cc:subject:date:message-id:reply-to; bh=D+geK99fBWdp7S2zDM4C3VUidei1SsKnOz1jjdUkhRw=; b=dEWV1sDV4kXLHev/Hf0F6/5EgNkXk+jSP5MubJFT1mtMEzrd0Su4L67vw2Cu3FelbA 7JmGBptdA8n2GhuqqwsT+tOLg5EgVgcAOGWmObLcsrHzKtFDkcKCWl/FITqP53I2kx78 V8/ZR1YpLgWj+N1ehWQQxqhOAZm4k9knX4TyFTeq3qO52XO5fnUjnaWt1U4TmMijI0uW sumVPG5JW5pMYkXeZvOWn7acri4szVe4PDz+ky/QjGRxpy4p+lgLcQcsPtFoI0urf1KU OMsJt0D9Cy0S4J+l0z/P3cNydADbJIVuFRhvlzvuFVEwFkZ9stQrrOent6f6qfFNAIfF jsPg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:x-gm-message-state:from:to:cc:subject:date :message-id:reply-to; bh=D+geK99fBWdp7S2zDM4C3VUidei1SsKnOz1jjdUkhRw=; b=CiFYalXnLdsZXdoJ+JugDHh5t2lVB9SBIi7N+rCS8AhZsO7OcNNbjbd//aYVAaxI4X 6rjxGQBdkpS+LN+lBv8l82iCzhQdtXc6g65GXbQwLXG+5G19LOdED8Du1Bmgpfbj0giv Jqyw79tWcRR6yVe28maGuBpHfnzQGR3GxjSnUA76JmRO6NiRVGVkznnEwNjcueCsZkUM JHIQrdlXjy8f+ZDRUQWJWR8bhORSwe7A3d6J4pAcm2+TsWwDmvfc/dEkxax56XjWBiaZ BlpMVFfg5ol0yHYG0XvkExoOz9BAwHKLXs/yJImaY6z1o5RaIGPLc2Gjzt1SiBvYGFf0 V5Jw== X-Gm-Message-State: ACrzQf1TrUVuCkibutSaaBh9L4VM7w+r6CYwuuhTl4as2WJhpyisG8/x uiUz6oDun/kXZvB30dNLqJgKzw== X-Google-Smtp-Source: AMsMyM5mBhT44kMTTWFESMD5g2Ta35xFYhiWJ7bOcxwEInRQ0foBv9qN42gqGXbQVduas/FNl/oLJA== X-Received: by 2002:a05:6402:c7:b0:457:cd5d:d777 with SMTP id i7-20020a05640200c700b00457cd5dd777mr7922898edu.245.1666194733534; Wed, 19 Oct 2022 08:52:13 -0700 (PDT) Received: from google.com (64.227.90.34.bc.googleusercontent.com. [34.90.227.64]) by smtp.gmail.com with ESMTPSA id v2-20020a1709067d8200b007815c3e95f6sm9274435ejo.146.2022.10.19.08.52.12 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 19 Oct 2022 08:52:13 -0700 (PDT) Date: Wed, 19 Oct 2022 15:52:10 +0000 From: Quentin Perret To: Will Deacon Cc: kvmarm@lists.linux.dev, Sean Christopherson , Vincent Donnefort , Alexandru Elisei , Catalin Marinas , James Morse , Chao Peng , Suzuki K Poulose , Mark Rutland , Fuad Tabba , Oliver Upton , Marc Zyngier , kernel-team@android.com, kvm@vger.kernel.org, linux-arm-kernel@lists.infradead.org Subject: Re: [PATCH v4 20/25] KVM: arm64: Return guest memory from EL2 via dedicated teardown memcache Message-ID: References: <20221017115209.2099-1-will@kernel.org> <20221017115209.2099-21-will@kernel.org> Precedence: bulk X-Mailing-List: kvmarm@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20221017115209.2099-21-will@kernel.org> On Monday 17 Oct 2022 at 12:52:04 (+0100), Will Deacon wrote: > struct kvm_protected_vm { > pkvm_handle_t handle; > struct mutex vm_lock; > - > - struct { > - void *pgd; > - void *vm; > - void *vcpus[KVM_MAX_VCPUS]; > - } hyp_donations; > + struct kvm_hyp_memcache teardown_mc; > }; Argh, I guess that somewhat invalidates my previous comment. Oh well :-)