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 Received: from lists1p.gnu.org (lists1p.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 4D589CA9EC5 for ; Mon, 12 Oct 2026 15:45:18 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists1p.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1xGICx-00072y-SU; Mon, 12 Oct 2026 11:44:59 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists1p.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1xGICt-00072K-Ex for qemu-devel@nongnu.org; Mon, 12 Oct 2026 11:44:56 -0400 Received: from linux.microsoft.com ([13.77.154.182]) by eggs.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1xGICp-0004ao-Nx for qemu-devel@nongnu.org; Mon, 12 Oct 2026 11:44:53 -0400 Received: from laptop.localdomain (unknown [81.196.141.65]) by linux.microsoft.com (Postfix) with ESMTPSA id E053020B7166; Mon, 12 Oct 2026 08:44:45 -0700 (PDT) DKIM-Filter: OpenDKIM Filter v2.11.0 linux.microsoft.com E053020B7166 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.microsoft.com; s=default; t=1791819887; bh=xVZvn5X9JVCVl0mXu+bnJCmFQ+gW0cd4rx7jbHsRzF4=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=ssk6ZVRVGHf6N1PmWsa4d6xBP/To1uWw2SRQvedHAZl1b/1BMWC7AGXEmso3kPuLh ecz9Tjh8bwbJEQCCDhF4vdZYV5ycym40rYDesdSZjytHUbouOcnspLUxx4iZHgA26F AZI1ErFDdzENeM6G79YuZHojtk3xHhtAX2t29l4E= From: =?UTF-8?q?Doru=20Bl=C3=A2nzeanu?= To: qemu-devel@nongnu.org Cc: =?UTF-8?q?Doru=20Bl=C3=A2nzeanu?= , Wei Liu , Magnus Kulke , Magnus Kulke , Zhao Liu , Paolo Bonzini , Wei Liu , =?UTF-8?q?Doru=20Bl=C3=A2nzeanu?= Subject: [PATCH 1/2] i386/cpu.c: Adjust minimum xlevel to 0x8000_001E when TOPOEXT is enabled Date: Mon, 12 Oct 2026 18:44:41 +0300 Message-ID: <20261012154442.306511-2-dblanzeanu@linux.microsoft.com> X-Mailer: git-send-email 2.53.0 In-Reply-To: <20261012154442.306511-1-dblanzeanu@linux.microsoft.com> References: <20261012154442.306511-1-dblanzeanu@linux.microsoft.com> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Received-SPF: pass client-ip=13.77.154.182; envelope-from=dblanzeanu@linux.microsoft.com; helo=linux.microsoft.com X-Spam_score_int: -19 X-Spam_score: -2.0 X-Spam_bar: -- X-Spam_report: (-2.0 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, SPF_HELO_PASS=-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: 2.1.29 Precedence: list List-Id: qemu development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org This ensures the guests can discover the AMD cache and processor topology leaves when TOPOEXT feature is enabled. Signed-off-by: Doru Blânzeanu --- target/i386/cpu.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/target/i386/cpu.c b/target/i386/cpu.c index 74eebeabd7..f1d8a35766 100644 --- a/target/i386/cpu.c +++ b/target/i386/cpu.c @@ -9879,6 +9879,11 @@ void x86_cpu_expand_features(X86CPU *cpu, Error **errp) x86_cpu_adjust_level(cpu, &env->cpuid_min_xlevel, 0x8000000A); } + /* TOPOEXT requires CPUID[0x8000001D] and CPUID[0x8000001E] */ + if (env->features[FEAT_8000_0001_ECX] & CPUID_EXT3_TOPOEXT) { + x86_cpu_adjust_level(cpu, &env->cpuid_min_xlevel, 0x8000001E); + } + /* SEV requires CPUID[0x8000001F] */ if (sev_enabled()) { x86_cpu_adjust_level(cpu, &env->cpuid_min_xlevel, 0x8000001F); -- 2.53.0