From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Cyrus-Session-Id: sloti22d1t05-1511654-1518326748-2-17263974633693659140 X-Sieve: CMU Sieve 3.0 X-Spam-known-sender: no X-Spam-score: 0.0 X-Spam-hits: BAYES_00 -1.9, HEADER_FROM_DIFFERENT_DOMAINS 0.001, ME_NOAUTH 0.01, RCVD_IN_DNSWL_HI -5, T_RP_MATCHES_RCVD -0.01, LANGUAGES unknown, BAYES_USED global, SA_VERSION 3.4.0 X-Spam-source: IP='209.132.180.67', Host='vger.kernel.org', Country='US', FromHeader='uk', MailFrom='org' X-Spam-charsets: plain='UTF-8' X-Resolved-to: greg@kroah.com X-Delivered-to: greg@kroah.com X-Mail-from: stable-owner@vger.kernel.org ARC-Seal: i=1; a=rsa-sha256; cv=none; d=messagingengine.com; s=arctest; t=1518326747; b=cHsdRE4JKq+fhU3C5hjvoKhTGJdGIfsnabLamRiq+VoGSBy S8UQOt/klPzoT6TVoQtZTwDNoOfPdSzWOE6rYUZpezaGzIxzoOYUTN2vnemopZ0i /nJ25dY75mw3V6mfWW1tTt/E9F0hdJrqxavsvEvN5wjjrUSBhqeFtPj0dE/KYBM8 /SJBpynHuxwt8OjauI7NmywsjtqbnR5iHEHioo6IMn9+36WHLRSqmoVKvDR1VCN5 L2gJrKUzsiz+NdKOJm9FhZ9JmriiUWgFN1QEAB7GuSRY7geip6h9OURYZkxsrP0x PGtyZSVc4qgcbTtcRspjHpw9d7ZlgcgHTWhzX0g== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=content-type:content-transfer-encoding :mime-version:from:to:cc:date:message-id:subject:in-reply-to :sender:list-id; s=arctest; t=1518326747; bh=MfAXqVHUTPX1tYagpMu 9s0XOJfCUwOtDgBrfa27jHOQ=; b=qostTm5BeqYy7F1IZl9TR+KR4AVALFJPZvz LcRhPphmozna6qpJshiiY3m3nwlrFRK4cYJ2UClXPfhr/RO6EyZSTBiVkDxhT59r YBPCzgtbV8Ouo26YTIvix8xqb0pqAWDSIXWiX+6/5d6jJgGWAIXiNlISok2EjnsP 6Q43OCKwakAptd/NXy4UrcPNTeOJdqD7xxTwhrWqr9W2adDq29+7zbYox6SG+WAm AZrJVzK29dUGxiQ5aKsBYZceYm4K1jqLa2UFTfv4l9y4dChL9iLYdvx3EOI18yMY HQM0LHzNwG4PWCR2ZFNwfqMWXqd3ulwbB8f+vnzSKFd/7tXLFYQ== ARC-Authentication-Results: i=1; mx6.messagingengine.com; arc=none (no signatures found); dkim=none (no signatures found); dmarc=none (p=none,has-list-id=yes,d=none) header.from=decadent.org.uk; iprev=pass policy.iprev=209.132.180.67 (vger.kernel.org); spf=none smtp.mailfrom=stable-owner@vger.kernel.org smtp.helo=vger.kernel.org; x-aligned-from=fail; x-ptr=pass x-ptr-helo=vger.kernel.org x-ptr-lookup=vger.kernel.org; x-return-mx=pass smtp.domain=vger.kernel.org smtp.result=pass smtp_org.domain=kernel.org smtp_org.result=pass smtp_is_org_domain=no header.domain=decadent.org.uk header.result=pass header_is_org_domain=yes Authentication-Results: mx6.messagingengine.com; arc=none (no signatures found); dkim=none (no signatures found); dmarc=none (p=none,has-list-id=yes,d=none) header.from=decadent.org.uk; iprev=pass policy.iprev=209.132.180.67 (vger.kernel.org); spf=none smtp.mailfrom=stable-owner@vger.kernel.org smtp.helo=vger.kernel.org; x-aligned-from=fail; x-ptr=pass x-ptr-helo=vger.kernel.org x-ptr-lookup=vger.kernel.org; x-return-mx=pass smtp.domain=vger.kernel.org smtp.result=pass smtp_org.domain=kernel.org smtp_org.result=pass smtp_is_org_domain=no header.domain=decadent.org.uk header.result=pass header_is_org_domain=yes Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754054AbeBKFYE (ORCPT ); Sun, 11 Feb 2018 00:24:04 -0500 Received: from shadbolt.e.decadent.org.uk ([88.96.1.126]:41326 "EHLO shadbolt.e.decadent.org.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752480AbeBKEdk (ORCPT ); Sat, 10 Feb 2018 23:33:40 -0500 Content-Type: text/plain; charset="UTF-8" Content-Disposition: inline Content-Transfer-Encoding: 8bit MIME-Version: 1.0 From: Ben Hutchings To: linux-kernel@vger.kernel.org, stable@vger.kernel.org CC: akpm@linux-foundation.org, "Ladi Prosek" , "Paolo Bonzini" Date: Sun, 11 Feb 2018 04:20:06 +0000 Message-ID: X-Mailer: LinuxStableQueue (scripts by bwh) Subject: [PATCH 3.2 08/79] KVM: nVMX: set IDTR and GDTR limits when loading L1 host state In-Reply-To: X-SA-Exim-Connect-IP: 2a02:8011:400e:2:6f00:88c8:c921:d332 X-SA-Exim-Mail-From: ben@decadent.org.uk X-SA-Exim-Scanned: No (on shadbolt.decadent.org.uk); SAEximRunCond expanded to false Sender: stable-owner@vger.kernel.org X-Mailing-List: stable@vger.kernel.org X-getmail-retrieved-from-mailbox: INBOX X-Mailing-List: linux-kernel@vger.kernel.org List-ID: 3.2.99-rc1 review patch. If anyone has any objections, please let me know. ------------------ From: Ladi Prosek commit 21f2d551183847bc7fbe8d866151d00cdad18752 upstream. Intel SDM 27.5.2 Loading Host Segment and Descriptor-Table Registers: "The GDTR and IDTR limits are each set to FFFFH." Signed-off-by: Ladi Prosek Signed-off-by: Paolo Bonzini [bwh: Backported to 3.2: adjust context] Signed-off-by: Ben Hutchings --- arch/x86/kvm/vmx.c | 2 ++ 1 file changed, 2 insertions(+) --- a/arch/x86/kvm/vmx.c +++ b/arch/x86/kvm/vmx.c @@ -7076,6 +7076,8 @@ void load_vmcs12_host_state(struct kvm_v vmcs_writel(GUEST_SYSENTER_EIP, vmcs12->host_ia32_sysenter_eip); vmcs_writel(GUEST_IDTR_BASE, vmcs12->host_idtr_base); vmcs_writel(GUEST_GDTR_BASE, vmcs12->host_gdtr_base); + vmcs_write32(GUEST_IDTR_LIMIT, 0xFFFF); + vmcs_write32(GUEST_GDTR_LIMIT, 0xFFFF); vmcs_writel(GUEST_TR_BASE, vmcs12->host_tr_base); vmcs_writel(GUEST_GS_BASE, vmcs12->host_gs_base); vmcs_writel(GUEST_FS_BASE, vmcs12->host_fs_base);