From nobody Thu Dec 18 09:23:16 2025 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7E570E7E631 for ; Tue, 26 Sep 2023 12:20:51 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234667AbjIZMUz (ORCPT ); Tue, 26 Sep 2023 08:20:55 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57748 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234608AbjIZMUl (ORCPT ); Tue, 26 Sep 2023 08:20:41 -0400 Received: from mail.xenproject.org (mail.xenproject.org [104.130.215.37]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 7B423126; Tue, 26 Sep 2023 05:20:33 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=xen.org; s=20200302mail; h=Content-Transfer-Encoding:MIME-Version:References: In-Reply-To:Message-Id:Date:Subject:Cc:To:From; bh=GVRP7ZhX9y66fV8la0Z0phq4YOuv61LMjBgGZkw2zl4=; b=rj2urSvrvK6H++zO04aJR9h+9T EkFDrmH3fH6pu6WNr9oi0CobGOYQzl/7mmqEXBu83s1Cj+i728wbadosNbhxm8jKHMsRmK7R83k9v xoi03HNc3qOMIf3rxRJmbX+d92Tu7TV6zGanD5irxQLUyPE51H5zSe1CKp5tvY+1jz3c=; Received: from xenbits.xenproject.org ([104.239.192.120]) by mail.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1ql73I-0000Hm-HE; Tue, 26 Sep 2023 12:20:32 +0000 Received: from ec2-63-33-11-17.eu-west-1.compute.amazonaws.com ([63.33.11.17] helo=REM-PW02S00X.ant.amazon.com) by xenbits.xenproject.org with esmtpsa (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1ql73I-0001mF-9r; Tue, 26 Sep 2023 12:20:32 +0000 From: Paul Durrant To: kvm@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Paul Durrant , David Woodhouse , Sean Christopherson , Paolo Bonzini , David Woodhouse Subject: [PATCH v6 09/11] KVM: selftests / xen: re-map vcpu_info using HVA rather than GPA Date: Tue, 26 Sep 2023 12:20:11 +0000 Message-Id: <20230926122013.867391-10-paul@xen.org> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230926122013.867391-1-paul@xen.org> References: <20230926122013.867391-1-paul@xen.org> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" From: Paul Durrant If the relevant capability (KVM_XEN_HVM_CONFIG_SHARED_INFO_HVA) is present then re-map vcpu_info using the HVA part way through the tests to make sure then there is no functional change. Signed-off-by: Paul Durrant Reviewed-by: David Woodhouse --- Cc: Sean Christopherson Cc: Paolo Bonzini Cc: David Woodhouse v5: - New in this version. --- .../selftests/kvm/x86_64/xen_shinfo_test.c | 15 +++++++++++++++ 1 file changed, 15 insertions(+) diff --git a/tools/testing/selftests/kvm/x86_64/xen_shinfo_test.c b/tools/t= esting/selftests/kvm/x86_64/xen_shinfo_test.c index e6672ae1d9de..a5d3aea8fd95 100644 --- a/tools/testing/selftests/kvm/x86_64/xen_shinfo_test.c +++ b/tools/testing/selftests/kvm/x86_64/xen_shinfo_test.c @@ -66,6 +66,7 @@ enum { TEST_POLL_TIMEOUT, TEST_POLL_MASKED, TEST_POLL_WAKE, + SET_VCPU_INFO, TEST_TIMER_PAST, TEST_LOCKING_SEND_RACE, TEST_LOCKING_POLL_RACE, @@ -325,6 +326,10 @@ static void guest_code(void) =20 GUEST_SYNC(TEST_POLL_WAKE); =20 + /* Set the vcpu_info to point at exactly the place it already is to + * make sure the attribute is functional. */ + GUEST_SYNC(SET_VCPU_INFO); + /* A timer wake an *unmasked* port which should wake us with an * actual interrupt, while we're polling on a different port. */ ports[0]++; @@ -892,6 +897,16 @@ int main(int argc, char *argv[]) alarm(1); break; =20 + case SET_VCPU_INFO: + if (has_shinfo_hva) { + struct kvm_xen_vcpu_attr vih =3D { + .type =3D KVM_XEN_VCPU_ATTR_TYPE_VCPU_INFO_HVA, + .u.hva =3D (unsigned long)vinfo + }; + vcpu_ioctl(vcpu, KVM_XEN_VCPU_SET_ATTR, &vih); + } + break; + case TEST_TIMER_PAST: TEST_ASSERT(!evtchn_irq_expected, "Expected event channel IRQ but it didn't happen"); --=20 2.39.2