From patchwork Tue Nov 24 19:07:42 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Paul Durrant X-Patchwork-Id: 11929637 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-18.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id E3E2DC6379D for ; Tue, 24 Nov 2020 19:30:59 +0000 (UTC) Received: from lists.xenproject.org (lists.xenproject.org [192.237.175.120]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 5BC58208DB for ; Tue, 24 Nov 2020 19:30:59 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=xen.org header.i=@xen.org header.b="g+b9RfjY" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 5BC58208DB Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=xen.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=xen-devel-bounces@lists.xenproject.org Received: from list by lists.xenproject.org with outflank-mailman.36923.69030 (Exim 4.92) (envelope-from ) id 1khe1X-0005dr-Ca; Tue, 24 Nov 2020 19:30:47 +0000 X-Outflank-Mailman: Message body and most headers restored to incoming version Received: by outflank-mailman (output) from mailman id 36923.69030; Tue, 24 Nov 2020 19:30:47 +0000 X-BeenThere: xen-devel@lists.xenproject.org List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xenproject.org Precedence: list Sender: "Xen-devel" Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1khe1X-0005dk-8n; Tue, 24 Nov 2020 19:30:47 +0000 Received: by outflank-mailman (input) for mailman id 36923; Tue, 24 Nov 2020 19:30:45 +0000 Received: from mail.xenproject.org ([104.130.215.37]) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1khe1V-0005bX-7u for xen-devel@lists.xenproject.org; Tue, 24 Nov 2020 19:30:45 +0000 Received: from xenbits.xenproject.org ([104.239.192.120]) by mail.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1khe1U-0004Oe-6T; Tue, 24 Nov 2020 19:30:44 +0000 Received: from host86-183-162-145.range86-183.btcentralplus.com ([86.183.162.145] helo=u2f063a87eabd5f.home) by xenbits.xenproject.org with esmtpsa (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1khdfS-0000r4-Q4; Tue, 24 Nov 2020 19:07:59 +0000 Received: from mail.xenproject.org ([104.130.215.37]) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1khe1V-0005bX-7u for xen-devel@lists.xenproject.org; Tue, 24 Nov 2020 19:30:45 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=xen.org; s=20200302mail; h=Content-Transfer-Encoding:Content-Type:MIME-Version: References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From; bh=aEBO33IoPtgfp4ROpOAovObbOPgE7wiSsLQNJbsivrE=; b=g+b9RfjYbai05izai8aY8mU7QG 2ypBZdv6GtWwikgt0qJgTIxANwyidRIyRzauSJFicVbTOGDmuBrbX7+FMWQp8/0xajgItlT14hMIO nfkuAFubCjyFLzPKp6GYOW9iDcjyBvLid5/H/PMYc0XY8KKyaTYQRhXlbSAhwF/6XPko=; Received: from xenbits.xenproject.org ([104.239.192.120]) by mail.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1khe1U-0004Oe-6T; Tue, 24 Nov 2020 19:30:44 +0000 Received: from host86-183-162-145.range86-183.btcentralplus.com ([86.183.162.145] helo=u2f063a87eabd5f.home) by xenbits.xenproject.org with esmtpsa (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1khdfS-0000r4-Q4; Tue, 24 Nov 2020 19:07:59 +0000 From: Paul Durrant To: xen-devel@lists.xenproject.org Cc: Paul Durrant , Wei Liu , Jan Beulich , Andrew Cooper , =?utf-8?q?Roger_Pau_Monn=C3=A9?= , George Dunlap , Ian Jackson , Julien Grall , Stefano Stabellini Subject: [PATCH v3 11/13] viridian: add a new '_HVMPV_ex_processor_masks' bit into HVM_PARAM_VIRIDIAN... Date: Tue, 24 Nov 2020 19:07:42 +0000 Message-Id: <20201124190744.11343-12-paul@xen.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20201124190744.11343-1-paul@xen.org> References: <20201124190744.11343-1-paul@xen.org> MIME-Version: 1.0 From: Paul Durrant ... and advertise ExProcessorMasks support if it is set. Support is advertised by setting bit 11 in CPUID:40000004:EAX. Signed-off-by: Paul Durrant --- Cc: Wei Liu Cc: Jan Beulich Cc: Andrew Cooper Cc: "Roger Pau Monné" Cc: George Dunlap Cc: Ian Jackson Cc: Julien Grall Cc: Stefano Stabellini --- xen/arch/x86/hvm/viridian/viridian.c | 3 +++ xen/include/public/hvm/params.h | 7 ++++++- 2 files changed, 9 insertions(+), 1 deletion(-) diff --git a/xen/arch/x86/hvm/viridian/viridian.c b/xen/arch/x86/hvm/viridian/viridian.c index 3c18908b7b35..32bf58db3a73 100644 --- a/xen/arch/x86/hvm/viridian/viridian.c +++ b/xen/arch/x86/hvm/viridian/viridian.c @@ -84,6 +84,7 @@ typedef union _HV_CRASH_CTL_REG_CONTENTS #define CPUID4A_MSR_BASED_APIC (1 << 3) #define CPUID4A_RELAX_TIMER_INT (1 << 5) #define CPUID4A_SYNTHETIC_CLUSTER_IPI (1 << 10) +#define CPUID4A_EX_PROCESSOR_MASKS (1 << 11) /* Viridian CPUID leaf 6: Implementation HW features detected and in use */ #define CPUID6A_APIC_OVERLAY (1 << 0) @@ -197,6 +198,8 @@ void cpuid_viridian_leaves(const struct vcpu *v, uint32_t leaf, res->a |= CPUID4A_MSR_BASED_APIC; if ( viridian_feature_mask(d) & HVMPV_hcall_ipi ) res->a |= CPUID4A_SYNTHETIC_CLUSTER_IPI; + if ( viridian_feature_mask(d) & HVMPV_ex_processor_masks ) + res->a |= CPUID4A_EX_PROCESSOR_MASKS; /* * This value is the recommended number of attempts to try to diff --git a/xen/include/public/hvm/params.h b/xen/include/public/hvm/params.h index 0e3fdca09646..3b0a0f45da53 100644 --- a/xen/include/public/hvm/params.h +++ b/xen/include/public/hvm/params.h @@ -164,6 +164,10 @@ #define _HVMPV_hcall_ipi 9 #define HVMPV_hcall_ipi (1 << _HVMPV_hcall_ipi) +/* Enable ExProcessorMasks */ +#define _HVMPV_ex_processor_masks 10 +#define HVMPV_ex_processor_masks (1 << _HVMPV_ex_processor_masks) + #define HVMPV_feature_mask \ (HVMPV_base_freq | \ HVMPV_no_freq | \ @@ -174,7 +178,8 @@ HVMPV_crash_ctl | \ HVMPV_synic | \ HVMPV_stimer | \ - HVMPV_hcall_ipi) + HVMPV_hcall_ipi | \ + HVMPV_ex_processor_masks) #endif