From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-it0-f70.google.com (mail-it0-f70.google.com [209.85.214.70]) by kanga.kvack.org (Postfix) with ESMTP id 21A8E83297 for ; Fri, 16 Jun 2017 14:56:04 -0400 (EDT) Received: by mail-it0-f70.google.com with SMTP id i7so40220911ita.10 for ; Fri, 16 Jun 2017 11:56:04 -0700 (PDT) Received: from NAM03-DM3-obe.outbound.protection.outlook.com (mail-dm3nam03on0040.outbound.protection.outlook.com. [104.47.41.40]) by mx.google.com with ESMTPS id g103si3000227ioi.64.2017.06.16.11.56.03 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Fri, 16 Jun 2017 11:56:03 -0700 (PDT) From: Tom Lendacky Subject: [PATCH v7 32/36] xen/x86: Remove SME feature in PV guests Date: Fri, 16 Jun 2017 13:55:54 -0500 Message-ID: <20170616185554.18967.82909.stgit@tlendack-t1.amdoffice.net> In-Reply-To: <20170616184947.18967.84890.stgit@tlendack-t1.amdoffice.net> References: <20170616184947.18967.84890.stgit@tlendack-t1.amdoffice.net> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org List-ID: To: linux-arch@vger.kernel.org, linux-efi@vger.kernel.org, kvm@vger.kernel.org, linux-doc@vger.kernel.org, x86@kernel.org, kexec@lists.infradead.org, linux-kernel@vger.kernel.org, kasan-dev@googlegroups.com, xen-devel@lists.xen.org, linux-mm@kvack.org, iommu@lists.linux-foundation.org Cc: Brijesh Singh , Toshimitsu Kani , Radim =?utf-8?b?S3LEjW3DocWZ?= , Matt Fleming , Alexander Potapenko , "H. Peter Anvin" , Larry Woodman , Jonathan Corbet , Joerg Roedel , "Michael S. Tsirkin" , Ingo Molnar , Andrey Ryabinin , Dave Young , Rik van Riel , Arnd Bergmann , Konrad Rzeszutek Wilk , Borislav Petkov , Andy Lutomirski , Boris Ostrovsky , Dmitry Vyukov , Juergen Gross , Thomas Gleixner , Paolo Bonzini Xen does not currently support SME for PV guests. Clear the SME cpu capability in order to avoid any ambiguity. Signed-off-by: Tom Lendacky --- arch/x86/xen/enlighten_pv.c | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/x86/xen/enlighten_pv.c b/arch/x86/xen/enlighten_pv.c index f33eef4..e6ecf42 100644 --- a/arch/x86/xen/enlighten_pv.c +++ b/arch/x86/xen/enlighten_pv.c @@ -294,6 +294,7 @@ static void __init xen_init_capabilities(void) setup_clear_cpu_cap(X86_FEATURE_MTRR); setup_clear_cpu_cap(X86_FEATURE_ACC); setup_clear_cpu_cap(X86_FEATURE_X2APIC); + setup_clear_cpu_cap(X86_FEATURE_SME); if (!xen_initial_domain()) setup_clear_cpu_cap(X86_FEATURE_ACPI); -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org