From patchwork Thu Nov 19 10:32:20 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vitaly Kuznetsov X-Patchwork-Id: 1402893 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org (client-ip=209.51.188.17; helo=lists.gnu.org; envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org; receiver=) Authentication-Results: ozlabs.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: ozlabs.org; dkim=fail reason="signature verification failed" (1024-bit key; unprotected) header.d=redhat.com header.i=@redhat.com header.a=rsa-sha256 header.s=mimecast20190719 header.b=X2/JJ+U0; dkim-atps=neutral Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 4CcGK8232Dz9s1l for ; Thu, 19 Nov 2020 21:35:08 +1100 (AEDT) Received: from localhost ([::1]:41512 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kfhHO-0004LT-Am for incoming@patchwork.ozlabs.org; Thu, 19 Nov 2020 05:35:06 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:50994) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kfhEy-0000xP-7c for qemu-devel@nongnu.org; Thu, 19 Nov 2020 05:32:36 -0500 Received: from us-smtp-delivery-124.mimecast.com ([216.205.24.124]:21837) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_CBC_SHA1:256) (Exim 4.90_1) (envelope-from ) id 1kfhEw-0007Z4-F1 for qemu-devel@nongnu.org; Thu, 19 Nov 2020 05:32:35 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1605781953; 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=qDY3p5tyvrzawRbC9R90nyX4k0K9UXvXdNNRJVMI38w=; b=X2/JJ+U0FiBQhVx8RHSuXneJ509YiSBOpg30LjKCsOY3pP2mEIHdupQvp3M+eihZmn0w9V BEa2QF6OKnD0eVYK8EmHARhpapdETOvd/oBG7jpmj0Zsz+bj7yRMXR1wX//flm8yCqMCAO 7xAslbS6d0noWhDDUXmVNK5dkm1mXvw= 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-511-enRaRFRGMHq_QcCNkFNlew-1; Thu, 19 Nov 2020 05:32:31 -0500 X-MC-Unique: enRaRFRGMHq_QcCNkFNlew-1 Received: from smtp.corp.redhat.com (int-mx03.intmail.prod.int.phx2.redhat.com [10.5.11.13]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id C269318957E8 for ; Thu, 19 Nov 2020 10:32:30 +0000 (UTC) Received: from vitty.brq.redhat.com (unknown [10.40.193.186]) by smtp.corp.redhat.com (Postfix) with ESMTP id 7255560854; Thu, 19 Nov 2020 10:32:29 +0000 (UTC) From: Vitaly Kuznetsov To: qemu-devel@nongnu.org Subject: [PATCH 4/5] i386: move hyperv_limits initialization to x86_cpu_realizefn() Date: Thu, 19 Nov 2020 11:32:20 +0100 Message-Id: <20201119103221.1665171-5-vkuznets@redhat.com> In-Reply-To: <20201119103221.1665171-1-vkuznets@redhat.com> References: <20201119103221.1665171-1-vkuznets@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.13 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=vkuznets@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Received-SPF: pass client-ip=216.205.24.124; envelope-from=vkuznets@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/11/19 03:44:58 X-ACL-Warn: Detected OS = Linux 2.2.x-3.x [generic] [fuzzy] X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, 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=0.001, RCVD_IN_MSPIKE_WL=0.001, 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: Paolo Bonzini , Marcelo Tosatti , Eduardo Habkost Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" As a preparation to expanding Hyper-V CPU features early, move hyperv_limits initialization to x86_cpu_realizefn(). Signed-off-by: Vitaly Kuznetsov --- target/i386/cpu.c | 5 +++++ target/i386/cpu.h | 1 + target/i386/kvm.c | 13 ++++++++++++- 3 files changed, 18 insertions(+), 1 deletion(-) diff --git a/target/i386/cpu.c b/target/i386/cpu.c index 9e182929d29d..83aca942d87c 100644 --- a/target/i386/cpu.c +++ b/target/i386/cpu.c @@ -6536,6 +6536,11 @@ static void x86_cpu_hyperv_realize(X86CPU *cpu) /* Hypervisor system identity */ cpu->hyperv_version_id[0] = 0x00001bbc; cpu->hyperv_version_id[1] = 0x00060001; + + /* Hypervisor implementation limits */ + cpu->hyperv_limits[0] = 64; + cpu->hyperv_limits[1] = 0; + cpu->hyperv_limits[2] = 0; } static void x86_cpu_realizefn(DeviceState *dev, Error **errp) diff --git a/target/i386/cpu.h b/target/i386/cpu.h index 913927356c55..c95f20f59b15 100644 --- a/target/i386/cpu.h +++ b/target/i386/cpu.h @@ -1663,6 +1663,7 @@ struct X86CPU { uint32_t hyperv_vendor_id[3]; uint32_t hyperv_interface_id[4]; uint32_t hyperv_version_id[4]; + uint32_t hyperv_limits[3]; bool check_cpuid; bool enforce_cpuid; diff --git a/target/i386/kvm.c b/target/i386/kvm.c index 58a2528c6c41..446ab2ef1793 100644 --- a/target/i386/kvm.c +++ b/target/i386/kvm.c @@ -1233,6 +1233,15 @@ static int hyperv_handle_properties(CPUState *cs, env->features[FEAT_HYPERV_EBX] = c->ebx; env->features[FEAT_HYPERV_EDX] = c->edx; } + + c = cpuid_find_entry(cpuid, HV_CPUID_IMPLEMENT_LIMITS, 0); + if (c) { + cpu->hv_max_vps = c->eax; + cpu->hyperv_limits[0] = c->ebx; + cpu->hyperv_limits[1] = c->ecx; + cpu->hyperv_limits[2] = c->edx; + } + c = cpuid_find_entry(cpuid, HV_CPUID_ENLIGHTMENT_INFO, 0); if (c) { env->features[FEAT_HV_RECOMM_EAX] = c->eax; @@ -1335,7 +1344,9 @@ static int hyperv_handle_properties(CPUState *cs, c = &cpuid_ent[cpuid_i++]; c->function = HV_CPUID_IMPLEMENT_LIMITS; c->eax = cpu->hv_max_vps; - c->ebx = 0x40; + c->ebx = cpu->hyperv_limits[0]; + c->ecx = cpu->hyperv_limits[1]; + c->edx = cpu->hyperv_limits[2]; if (hyperv_feat_enabled(cpu, HYPERV_FEAT_EVMCS)) { __u32 function;