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Tue, 28 Jul 2020 02:44:30 -0400 Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-427-qUX3-sIiPsyvi7ULez0TtA-1; Tue, 28 Jul 2020 02:43:18 -0400 Received: from smtp.corp.redhat.com (int-mx06.intmail.prod.int.phx2.redhat.com [10.5.11.16]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 5E5121902EA0 for ; Tue, 28 Jul 2020 06:43:17 +0000 (UTC) Received: from wolverine.usersys.redhat.com (unknown [10.35.206.139]) by smtp.corp.redhat.com (Postfix) with ESMTP id CA45A69326; Tue, 28 Jul 2020 06:43:15 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1595918668; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding; bh=NZRL5TZyK96tHtFN4rVoroLqaASp+5exyGUAPbwD9B4=; b=i4NtsvI1tGfGtt8fp/bgf7yM398y8Wp/8kaKAK3KBMgmN9P2hpVIIEnIuCZQAXKLESdoxS EMFSdoCuPPsI6cMQOgRD6nekDkzHaoU/xIbsCexpSEHepl1u1fkafd/7/AYXvQmbsBKnFg 3wdN3j6whZkiNyHEfStUJiKDAKPQBRE= X-MC-Unique: qUX3-sIiPsyvi7ULez0TtA-1 From: Gal Hammer To: qemu-devel@nongnu.org Subject: [PATCH] target/i386: Add PDCM feature bit when when CPU's pmu property is enabled Date: Tue, 28 Jul 2020 09:42:50 +0300 Message-Id: <20200728064250.168368-1-ghammer@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.16 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=207.211.31.120; envelope-from=ghammer@redhat.com; helo=us-smtp-1.mimecast.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/07/27 23:55:28 X-ACL-Warn: Detected OS = Linux 2.2.x-3.x [generic] [fuzzy] X-Spam_score_int: -30 X-Spam_score: -3.1 X-Spam_bar: --- X-Spam_report: (-3.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-1, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H3=-0.01, RCVD_IN_MSPIKE_WL=-0.01, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Gal Hammer , Eduardo Habkost Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) Content-Type: text/plain; charset="utf-8" The PDCM feature bit is not enabled when adding the pmu property to a CPU without this capability (e.g. -cpu qemu64,pmu). Signed-off-by: Gal Hammer --- target/i386/cpu.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/target/i386/cpu.c b/target/i386/cpu.c index 588f32e136..6e1c8b6019 100644 --- a/target/i386/cpu.c +++ b/target/i386/cpu.c @@ -5535,6 +5535,8 @@ void cpu_x86_cpuid(CPUX86State *env, uint32_t index, = uint32_t count, } if (!cpu->enable_pmu) { *ecx &=3D ~CPUID_EXT_PDCM; + } else { + *ecx |=3D CPUID_EXT_PDCM; } break; case 2: --=20 2.26.2