From nobody Fri Nov 14 08:02:53 2025 Delivered-To: importer@patchew.org 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; Authentication-Results: mx.zohomail.com; dkim=fail; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail(p=none dis=none) header.from=redhat.com ARC-Seal: i=1; a=rsa-sha256; t=1585866297; cv=none; d=zohomail.com; s=zohoarc; b=lHBVAOQQnZKFKOOd0kaPP718omFsUuTKJdwhXPJdJin1QG2tgwAEwFmzZlkJKOkhUrRl9Y2hGM3iQlU2mUI9ruxeQ+a7HU3GeQqY0I9gdV4Lcxh3F7WFKaxLvAsZ3Azn7egMAOROfNTAVAdw9nrPyN8+bOQ+eIebApQOxJZ80ZY= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1585866297; h=Content-Type:Content-Transfer-Encoding:Cc:Date:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:To; bh=F9xqnO3YKJSTA/95yMX9uswZdwcSnnmlp7FyfTrYddI=; b=ZqFE87rPXD0qZRzvLdx+JSz2AgGL2GwF0BEWJAYUIUGV3Np+ZBZtsOa3IZh/d1dTleuY+AQmcz9i5ciEe5HAej3nXscTXx0Dh1QN/HBl/N3Ymcj0rPfJ0kGV25yLmYU2d8DzrOJM4g7YE4JZk74+9QPY/SQ4W/Ubsk3gqV4a3KQ= ARC-Authentication-Results: i=1; mx.zohomail.com; dkim=fail; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail header.from= (p=none dis=none) header.from= Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1585866297908695.724893141067; Thu, 2 Apr 2020 15:24:57 -0700 (PDT) Received: from localhost ([::1]:47912 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jK8Ge-0008MP-9x for importer@patchew.org; Thu, 02 Apr 2020 18:24:56 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:34520) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jK8DA-0001do-De for qemu-devel@nongnu.org; Thu, 02 Apr 2020 18:21:22 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1jK8D9-0007V8-Cp for qemu-devel@nongnu.org; Thu, 02 Apr 2020 18:21:20 -0400 Received: from us-smtp-delivery-1.mimecast.com ([205.139.110.120]:56834 helo=us-smtp-1.mimecast.com) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1jK8D9-0007Tw-8s for qemu-devel@nongnu.org; Thu, 02 Apr 2020 18:21:19 -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-258-qxc93IduMgmtF9UE-UymaA-1; Thu, 02 Apr 2020 18:21:16 -0400 Received: from smtp.corp.redhat.com (int-mx07.intmail.prod.int.phx2.redhat.com [10.5.11.22]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 904638017F3; Thu, 2 Apr 2020 22:21:15 +0000 (UTC) Received: from localhost (ovpn-116-71.gru2.redhat.com [10.97.116.71]) by smtp.corp.redhat.com (Postfix) with ESMTP id B43931001B0B; Thu, 2 Apr 2020 22:21:14 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1585866078; 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: in-reply-to:in-reply-to:references:references; bh=F9xqnO3YKJSTA/95yMX9uswZdwcSnnmlp7FyfTrYddI=; b=K0PK4SRfL7YR/5SieJz/nCnoJyuj8KO62PjNoeEWRaoi5K3csAouAoPiK1zZ/IvLebToWR D7gQr8q4MdBR8/IgSK49TXm0x39g7diJ4IIzqVSi/uR+vbigUK7pyBV51dJXCgj5MDJoJ0 L9CivX/EmFGqzFSpBRKzPwQ6SWn7eok= X-MC-Unique: qxc93IduMgmtF9UE-UymaA-1 From: Eduardo Habkost To: Peter Maydell , qemu-devel@nongnu.org Subject: [PULL 4/9] i386: Introduce use_epyc_apic_id_encoding in X86CPUDefinition Date: Thu, 2 Apr 2020 19:20:46 -0300 Message-Id: <20200402222051.523093-5-ehabkost@redhat.com> In-Reply-To: <20200402222051.523093-1-ehabkost@redhat.com> References: <20200402222051.523093-1-ehabkost@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.84 on 10.5.11.22 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Transfer-Encoding: quoted-printable X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 205.139.110.120 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: Paolo Bonzini , Babu Moger , Richard Henderson 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" From: Babu Moger Add a boolean variable use_epyc_apic_id_encoding in X86CPUDefinition. This will be set if this cpu model needs to use new EPYC based apic id encoding. Override the handlers with EPYC based handlers if use_epyc_apic_id_encoding is set. This will be done in x86_cpus_init. Signed-off-by: Babu Moger Message-Id: <158396723514.58170.14825482171652019765.stgit@naples-babu.amd.= com> Signed-off-by: Eduardo Habkost --- target/i386/cpu.c | 16 ++++++++++++++++ target/i386/cpu.h | 1 + 2 files changed, 17 insertions(+) diff --git a/target/i386/cpu.c b/target/i386/cpu.c index c3eba567ea..50cd257a7e 100644 --- a/target/i386/cpu.c +++ b/target/i386/cpu.c @@ -1614,6 +1614,10 @@ typedef struct X86CPUDefinition { FeatureWordArray features; const char *model_id; CPUCaches *cache_info; + + /* Use AMD EPYC encoding for apic id */ + bool use_epyc_apic_id_encoding; + /* * Definitions for alternative versions of CPU model. * List is terminated by item with version =3D=3D 0. @@ -1655,6 +1659,18 @@ static const X86CPUVersionDefinition *x86_cpu_def_ge= t_versions(X86CPUDefinition return def->versions ?: default_version_list; } =20 +bool cpu_x86_use_epyc_apic_id_encoding(const char *cpu_type) +{ + X86CPUClass *xcc =3D X86_CPU_CLASS(object_class_by_name(cpu_type)); + + assert(xcc); + if (xcc->model && xcc->model->cpudef) { + return xcc->model->cpudef->use_epyc_apic_id_encoding; + } else { + return false; + } +} + static CPUCaches epyc_cache_info =3D { .l1d_cache =3D &(CPUCacheInfo) { .type =3D DATA_CACHE, diff --git a/target/i386/cpu.h b/target/i386/cpu.h index 9af1b0c12e..8227479c94 100644 --- a/target/i386/cpu.h +++ b/target/i386/cpu.h @@ -1897,6 +1897,7 @@ void cpu_clear_apic_feature(CPUX86State *env); void host_cpuid(uint32_t function, uint32_t count, uint32_t *eax, uint32_t *ebx, uint32_t *ecx, uint32_t *edx= ); void host_vendor_fms(char *vendor, int *family, int *model, int *stepping); +bool cpu_x86_use_epyc_apic_id_encoding(const char *cpu_type); =20 /* helper.c */ bool x86_cpu_tlb_fill(CPUState *cs, vaddr address, int size, --=20 2.24.1