Message ID | 20200529160121.899083-11-maz@kernel.org (mailing list archive) |
---|---|
State | New, archived |
Headers | show
Return-Path: <SRS0=rOkw=7L=vger.kernel.org=kvm-owner@kernel.org> Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 52C681667 for <patchwork-kvm@patchwork.kernel.org>; Fri, 29 May 2020 16:04:10 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 3BC48208B8 for <patchwork-kvm@patchwork.kernel.org>; Fri, 29 May 2020 16:04:10 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1590768250; bh=JOkpbMlcjI9/itplMT14/1X3wT/8l30AWPnys8EJhvU=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=BG1VWbyGDFFzTXHyQ3YO/SMqLNRWgNqy/fkp1eGD5S8erqJ3L4+TcuPgRIy0Vv6vn x0LBY1fTv+zR7PnrFmwkNO2TdDQGxQ11SJn+UqwTMOxjXtSSel7kbo8SwzEE6bFLY+ i3lNCZkIiKCfm2TEQcqtl6zp1qTvrF9xkBTsbqhk= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728057AbgE2QEJ (ORCPT <rfc822;patchwork-kvm@patchwork.kernel.org>); Fri, 29 May 2020 12:04:09 -0400 Received: from mail.kernel.org ([198.145.29.99]:44138 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727975AbgE2QEI (ORCPT <rfc822;kvm@vger.kernel.org>); Fri, 29 May 2020 12:04:08 -0400 Received: from disco-boy.misterjones.org (disco-boy.misterjones.org [51.254.78.96]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id D3452207F9; Fri, 29 May 2020 16:04:06 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1590768247; bh=JOkpbMlcjI9/itplMT14/1X3wT/8l30AWPnys8EJhvU=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=bLntMe4zNTVSsATTQ2yxc6M+qQtNWqP2tZkb4l0rWE2N7L4/9go/ow/CK1+8pF8GX t+6FQ6FUIh1/19izsGsTzeiXB24i93hcc0lRN7hGVbRDCxsHl1GxDSn07BED1HG55f zDHMkXMMPRd7sRxBSfZOCniywTiCjjSkosN2oQLg= Received: from 78.163-31-62.static.virginmediabusiness.co.uk ([62.31.163.78] helo=why.lan) by disco-boy.misterjones.org with esmtpsa (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from <maz@kernel.org>) id 1jehS9-00GJKc-6T; Fri, 29 May 2020 17:01:49 +0100 From: Marc Zyngier <maz@kernel.org> To: Paolo Bonzini <pbonzini@redhat.com> Cc: Alexandru Elisei <alexandru.elisei@arm.com>, Andrew Scull <ascull@google.com>, Ard Biesheuvel <ardb@kernel.org>, Christoffer Dall <christoffer.dall@arm.com>, David Brazdil <dbrazdil@google.com>, Fuad Tabba <tabba@google.com>, James Morse <james.morse@arm.com>, Jiang Yi <giangyi@amazon.com>, Keqian Zhu <zhukeqian1@huawei.com>, Mark Rutland <mark.rutland@arm.com>, Suzuki K Poulose <suzuki.poulose@arm.com>, Will Deacon <will@kernel.org>, Zenghui Yu <yuzenghui@huawei.com>, Julien Thierry <julien.thierry.kdev@gmail.com>, linux-arm-kernel@lists.infradead.org, kvm@vger.kernel.org, kvmarm@lists.cs.columbia.edu Subject: [PATCH 10/24] KVM: arm/arm64: Release kvm->mmu_lock in loop to prevent starvation Date: Fri, 29 May 2020 17:01:07 +0100 Message-Id: <20200529160121.899083-11-maz@kernel.org> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20200529160121.899083-1-maz@kernel.org> References: <20200529160121.899083-1-maz@kernel.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-SA-Exim-Connect-IP: 62.31.163.78 X-SA-Exim-Rcpt-To: pbonzini@redhat.com, alexandru.elisei@arm.com, ascull@google.com, ardb@kernel.org, christoffer.dall@arm.com, dbrazdil@google.com, tabba@google.com, james.morse@arm.com, giangyi@amazon.com, zhukeqian1@huawei.com, mark.rutland@arm.com, suzuki.poulose@arm.com, will@kernel.org, yuzenghui@huawei.com, julien.thierry.kdev@gmail.com, linux-arm-kernel@lists.infradead.org, kvm@vger.kernel.org, kvmarm@lists.cs.columbia.edu X-SA-Exim-Mail-From: maz@kernel.org X-SA-Exim-Scanned: No (on disco-boy.misterjones.org); SAEximRunCond expanded to false Sender: kvm-owner@vger.kernel.org Precedence: bulk List-ID: <kvm.vger.kernel.org> X-Mailing-List: kvm@vger.kernel.org |
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[GIT,PULL] KVM/arm64 updates for Linux 5.8
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diff --git a/arch/arm64/kvm/mmu.c b/arch/arm64/kvm/mmu.c index 29d8f24df944..917363375e8a 100644 --- a/arch/arm64/kvm/mmu.c +++ b/arch/arm64/kvm/mmu.c @@ -422,6 +422,9 @@ static void stage2_flush_memslot(struct kvm *kvm, next = stage2_pgd_addr_end(kvm, addr, end); if (!stage2_pgd_none(kvm, *pgd)) stage2_flush_puds(kvm, pgd, addr, next); + + if (next != end) + cond_resched_lock(&kvm->mmu_lock); } while (pgd++, addr = next, addr != end); }