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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id F16F9C87FCB for ; Tue, 5 Aug 2025 15:52:26 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:In-Reply-To:Content-Type: MIME-Version:References:Message-ID:Subject:Cc:To:From:Date:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=BS1Nv3IYXc7ptZpLu1XliiOyDJC9I4rHv8nqrIr3qLU=; b=WmgdjWa/8EiJre5CSj4o7jzToe wE8QB+SWyYkwPHGkqjDuCiK7lXEqMVTTkZu86m7n8hEnSAPB+2i0GP5mPq/O3NPsxLIzzhdoEzt4I DtfAJgtm1qrXPILnXjFJ+4v9LvT6xq29N/egYUEhjlyCybxuA/ErmXNnaCPoc+KK5qOjKt27lFXlC Xy+hxpm1aSIqbxn539XV+T9yXE0luaXcDnus97ieSNRJANxuXXFlcJGCAo6/dJ4YQJSRv8PtDMbw+ gpU8a61spOUPAVH1As9USkQj1OXqcdddbbez5pziCvAbL7tzHjjwKvxGO1zzgQPBL7z+jy63o9TDU dzPlivLQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1ujJxc-0000000DCgu-40Zn; Tue, 05 Aug 2025 15:52:20 +0000 Received: from nyc.source.kernel.org ([2604:1380:45d1:ec00::3]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1ujIpM-0000000D2im-3E8U for linux-arm-kernel@lists.infradead.org; Tue, 05 Aug 2025 14:39:45 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by nyc.source.kernel.org (Postfix) with ESMTP id 1B0E9A5654C; Tue, 5 Aug 2025 14:39:44 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 4453BC4CEF0; Tue, 5 Aug 2025 14:39:41 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1754404783; bh=zDU15c/0SyS63Ve+P/xgIY3O2R3OtWuKg0khyFNpS0c=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=QiA8RnhbuUV+U394qNTDHAlY1LIU8/+1wR6oCHm2LO+o9jq2kFxVXE+1SpLfudqQF BUHK6SHRnPACdpYoWgQqiOWEd74Uisk5TvAoHkbO4T+xS0A4kYKX5TryyUtcFnJZPx h7XE0tcRxpVCBHz6OpClkpA8pScSfM6k4y1egE1N0KC8FiayWiojJ5XgkXa13JfuUZ J69buYgraPGMEgnscbaCLiXHgwFbQoJ1itVl7JmgJEsC8EdhQgPw/1b9vysbGGH3VO yDQoC5kxZUfVbGPTrAVYPmoVDkKD08aUV6OQumx7lPfqB3Q2bn9jhR8wU5u033ihmc rGIoXGR8DNcAw== Date: Tue, 5 Aug 2025 15:39:38 +0100 From: Will Deacon To: Fuad Tabba Cc: kvmarm@lists.linux.dev, linux-arm-kernel@lists.infradead.org, maz@kernel.org, oliver.upton@linux.dev, joey.gouly@arm.com, suzuki.poulose@arm.com, yuzenghui@huawei.com, catalin.marinas@arm.com, vdonnefort@google.com, qperret@google.com, sebastianene@google.com, keirf@google.com, smostafa@google.com Subject: Re: [PATCH v1 0/4] KVM: arm64: Fixes to handling of restricted registers for protected VMs Message-ID: References: <20250805135617.831971-1-tabba@google.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20250805135617.831971-1-tabba@google.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250805_073944_874791_FD625167 X-CRM114-Status: GOOD ( 13.17 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Hi Fuad, On Tue, Aug 05, 2025 at 02:56:13PM +0100, Fuad Tabba wrote: > This patch series is mainly about fixing issues we've encountered in > pKVM (in downstream Android code), related to the handling of protected > VM access to restricted registers and injecting undefined exceptions > into a protected guest. > > The last patch isn't pKVM specific, but a fix to the vgic-v2 code > encountered while fixing the issues in this series. The issue it fixes > was indirectly introduced into the code with hVHE. > > Based on Linux 6.16. Thanks for putting this together so quickly. I left some small comments on patches 2 and 3 but, for the sake of transparency (I already mentioned the GIC thing to Marc), please can you add: Reported-by: Will Deacon on patches 1 and 4? Cheers, Will