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 X-Spam-Level: X-Spam-Status: No, score=-9.7 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id CA3D7C3A5A1 for ; Wed, 28 Aug 2019 13:39:18 +0000 (UTC) Received: from mm01.cs.columbia.edu (mm01.cs.columbia.edu [128.59.11.253]) by mail.kernel.org (Postfix) with ESMTP id B6508233FF for ; Wed, 28 Aug 2019 13:39:17 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org B6508233FF Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=arm.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=kvmarm-bounces@lists.cs.columbia.edu Received: from localhost (localhost [127.0.0.1]) by mm01.cs.columbia.edu (Postfix) with ESMTP id 6D6C84A588; Wed, 28 Aug 2019 09:39:17 -0400 (EDT) X-Virus-Scanned: at lists.cs.columbia.edu Received: from mm01.cs.columbia.edu ([127.0.0.1]) by localhost (mm01.cs.columbia.edu [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id THNBu2KgzcmJ; Wed, 28 Aug 2019 09:39:16 -0400 (EDT) Received: from mm01.cs.columbia.edu (localhost [127.0.0.1]) by mm01.cs.columbia.edu (Postfix) with ESMTP id D86334A598; Wed, 28 Aug 2019 09:39:14 -0400 (EDT) Received: from localhost (localhost [127.0.0.1]) by mm01.cs.columbia.edu (Postfix) with ESMTP id E74FA4A5B7 for ; Wed, 28 Aug 2019 09:39:13 -0400 (EDT) X-Virus-Scanned: at lists.cs.columbia.edu Received: from mm01.cs.columbia.edu ([127.0.0.1]) by localhost (mm01.cs.columbia.edu [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id FoiJGi8EaIJW for ; Wed, 28 Aug 2019 09:39:12 -0400 (EDT) Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by mm01.cs.columbia.edu (Postfix) with ESMTP id B1B074A5E5 for ; Wed, 28 Aug 2019 09:39:10 -0400 (EDT) Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 7CE7215AB; Wed, 28 Aug 2019 06:39:10 -0700 (PDT) Received: from e121566-lin.cambridge.arm.com (e121566-lin.cambridge.arm.com [10.1.196.217]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id 55D9C3F73D; Wed, 28 Aug 2019 06:39:09 -0700 (PDT) From: Alexandru Elisei To: kvm@vger.kernel.org, kvmarm@lists.cs.columbia.edu Subject: [kvm-unit-tests RFC PATCH 15/16] arm64: selftest: Expand EL2 test to disable and re-enable VHE Date: Wed, 28 Aug 2019 14:38:30 +0100 Message-Id: <1566999511-24916-16-git-send-email-alexandru.elisei@arm.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1566999511-24916-1-git-send-email-alexandru.elisei@arm.com> References: <1566999511-24916-1-git-send-email-alexandru.elisei@arm.com> Cc: maz@kernel.org, andre.przywara@arm.com, pbonzini@redhat.com X-BeenThere: kvmarm@lists.cs.columbia.edu X-Mailman-Version: 2.1.14 Precedence: list List-Id: Where KVM/ARM decisions are made List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: kvmarm-bounces@lists.cs.columbia.edu Sender: kvmarm-bounces@lists.cs.columbia.edu Signed-off-by: Alexandru Elisei --- KVM doesn't deal with a guest running with VHE enabled, then disabling it [1]. I also proposed a fix [1] for it. [1] https://www.spinics.net/lists/arm-kernel/msg749823.html arm/selftest.c | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/arm/selftest.c b/arm/selftest.c index 211bc8a5642b..4a6c943497ee 100644 --- a/arm/selftest.c +++ b/arm/selftest.c @@ -395,6 +395,18 @@ static void check_el2_cpu(void *data __unused) report("CPU(%3d) Running at EL2", current_level() == CurrentEL_EL2, cpu); report("CPU(%3d) VHE supported and enabled", vhe_supported() && vhe_enabled(), cpu); + + report_info("CPU(%3d) Disabling VHE", cpu); + disable_vhe(); + + report("CPU(%3d) Running at EL2", current_level() == CurrentEL_EL2, cpu); + report("CPU(%3d) VHE disabled", !vhe_enabled(), cpu); + + report_info("CPU(%3d) Re-enabling VHE", cpu); + enable_vhe(); + + report("CPU(%3d) Running at EL2", current_level() == CurrentEL_EL2, cpu); + report("CPU(%3d) VHE enabled", vhe_enabled(), cpu); } static bool psci_check(void); -- 2.7.4 _______________________________________________ kvmarm mailing list kvmarm@lists.cs.columbia.edu https://lists.cs.columbia.edu/mailman/listinfo/kvmarm