From patchwork Wed Nov 11 20:07:20 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Paul Durrant X-Patchwork-Id: 11898477 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 7F85D1391 for ; Wed, 11 Nov 2020 20:08:20 +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 58F532087D for ; Wed, 11 Nov 2020 20:08:20 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 58F532087D 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.25214.52909 (Exim 4.92) (envelope-from ) id 1kcwP2-0003cv-C5; Wed, 11 Nov 2020 20:07:36 +0000 X-Outflank-Mailman: Message body and most headers restored to incoming version Received: by outflank-mailman (output) from mailman id 25214.52909; Wed, 11 Nov 2020 20:07:36 +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 1kcwP1-0003c3-VR; Wed, 11 Nov 2020 20:07:35 +0000 Received: by outflank-mailman (input) for mailman id 25214; Wed, 11 Nov 2020 20:07:34 +0000 Received: from xenbits.xenproject.org ([104.239.192.120]) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1kcwOz-0003VL-Jv for xen-devel@lists.xenproject.org; Wed, 11 Nov 2020 20:07:33 +0000 Received: from host109-146-187-185.range109-146.btcentralplus.com ([109.146.187.185] helo=u2f063a87eabd5f.home) by xenbits.xenproject.org with esmtpsa (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1kcwOz-0000pY-Ai; Wed, 11 Nov 2020 20:07:33 +0000 Received: from xenbits.xenproject.org ([104.239.192.120]) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1kcwOz-0003VL-Jv for xen-devel@lists.xenproject.org; Wed, 11 Nov 2020 20:07:33 +0000 Received: from host109-146-187-185.range109-146.btcentralplus.com ([109.146.187.185] helo=u2f063a87eabd5f.home) by xenbits.xenproject.org with esmtpsa (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1kcwOz-0000pY-Ai; Wed, 11 Nov 2020 20:07:33 +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 09/10] viridian: add a new '_HVMPV_ex_processor_masks' bit into HVM_PARAM_VIRIDIAN... Date: Wed, 11 Nov 2020 20:07:20 +0000 Message-Id: <20201111200721.30551-10-paul@xen.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20201111200721.30551-1-paul@xen.org> References: <20201111200721.30551-1-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 670fec3a4870..4d570adc21c0 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