| Message ID | 20190319133022.10693-1-marc.zyngier@arm.com (mailing list archive) |
|---|---|
| Headers | show
Return-Path: <kvm-owner@kernel.org>
Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org
[172.30.200.125])
by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id EEC5E922
for <patchwork-kvm@patchwork.kernel.org>;
Tue, 19 Mar 2019 13:30:48 +0000 (UTC)
Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1])
by mail.wl.linuxfoundation.org (Postfix) with ESMTP id D5C3E2917D
for <patchwork-kvm@patchwork.kernel.org>;
Tue, 19 Mar 2019 13:30:48 +0000 (UTC)
Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486)
id C9FAD2968A; Tue, 19 Mar 2019 13:30:48 +0000 (UTC)
X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on
pdx-wl-mail.web.codeaurora.org
X-Spam-Level:
X-Spam-Status: No, score=-7.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI,
RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1
Received: from vger.kernel.org (vger.kernel.org [209.132.180.67])
by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 7774F2917D
for <patchwork-kvm@patchwork.kernel.org>;
Tue, 19 Mar 2019 13:30:48 +0000 (UTC)
Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand
id S1727018AbfCSNar (ORCPT
<rfc822;patchwork-kvm@patchwork.kernel.org>);
Tue, 19 Mar 2019 09:30:47 -0400
Received: from usa-sjc-mx-foss1.foss.arm.com ([217.140.101.70]:51644 "EHLO
foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP
id S1726717AbfCSNar (ORCPT <rfc822;kvm@vger.kernel.org>);
Tue, 19 Mar 2019 09:30:47 -0400
Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.72.51.249])
by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 82DEE1596;
Tue, 19 Mar 2019 06:30:46 -0700 (PDT)
Received: from why.lan (usa-sjc-mx-foss1.foss.arm.com [217.140.101.70])
by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id
74D1C3F59C;
Tue, 19 Mar 2019 06:30:44 -0700 (PDT)
From: Marc Zyngier <marc.zyngier@arm.com>
To: linux-arm-kernel@lists.infradead.org, kvmarm@lists.cs.columbia.edu,
kvm@vger.kernel.org
Cc: Christoffer Dall <Christoffer.Dall@arm.com>,
Andre Przywara <Andre.Przywara@arm.com>,
Eric Auger <eric.auger@redhat.com>,
Suzuki K Poulose <suzuki.poulose@arm.com>,
Julien Thierry <julien.thierry@arm.com>,
James Morse <james.morse@arm.com>
Subject: [PATCH 0/2] KVM: arm/arm64: vgic-its: Guest memory access fixes
Date: Tue, 19 Mar 2019 13:30:20 +0000
Message-Id: <20190319133022.10693-1-marc.zyngier@arm.com>
X-Mailer: git-send-email 2.20.1
MIME-Version: 1.0
Content-Transfer-Encoding: 8bit
Sender: kvm-owner@vger.kernel.org
Precedence: bulk
List-ID: <kvm.vger.kernel.org>
X-Mailing-List: kvm@vger.kernel.org
X-Virus-Scanned: ClamAV using ClamSMTP
|
| Series |
KVM: arm/arm64: vgic-its: Guest memory access fixes
|
expand
|
While messing with something completely different, I managed to trigger a number of RCU warnings, due to the lack of srcu locking in the ITS code. Andre partially addressed those last year[1], but there was some more left. [1] http://lists.infradead.org/pipermail/linux-arm-kernel/2018-May/577056.html Marc Zyngier (2): KVM: arm/arm64: vgic-its: Take the srcu lock when writing to guest memory KVM: arm/arm64: vgic-its: Take the srcu lock when parsing the memslots arch/arm/include/asm/kvm_mmu.h | 11 +++++++++++ arch/arm64/include/asm/kvm_mmu.h | 11 +++++++++++ virt/kvm/arm/vgic/vgic-its.c | 21 ++++++++++++++------- 3 files changed, 36 insertions(+), 7 deletions(-)