From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Cyrus-Session-Id: sloti22d1t05-1431546-1518323701-2-16723601030049918963 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=1518323700; b=TPYMU1YU8GjS7WjEETHozm7t13YarSlxdyeKULmrszmEdYT g16ZlIYydbZF88J9jVvG6BfJKRv4eVodK3E3Ifx49tlApFfI9PEtrgD1oCRh2t2G TfBeas6UK22+rQWPuundyIKlr7HUQMvY68NHDyHPHokKz+MhKqC2qWUyvms6fh9y 4eQdDxODHhlMVyn2R1EjRedoIBx++8JzdkoYuQEoOOBJ2vbONznpZR5D6fwvMXos G9Fi52nZKCGqO1SmW6NS3BYur9Utaw97tKvuoSXAppsLVpWHXgX0s9T+suLBIZbv GK9vihYxa9z/KdnE7CGGoUF6XYq06r2drBaM7wg== 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=1518323700; bh=xrPUOQt3lYYJdYYyo1l N+U3smQDejdFy2hYevO4yfNg=; b=Hacpg+tJkOaU8hJOJa1iXaO+rD+AvcHBBvW DaYJzFfLyIUxTdoKDEvHi6mgZ7G0Kbz0H8mPniRqk3Sxn42nvXxfSK+Iq1P+L5SE CqtSMvpDAgxmcw3Dl1Tmbho8LoYSYoF7IgnZ057hHinz3iwSwx3lkL74K19mDflZ meTJ6ChNpdvTdsoSEUg/VrGPehQQ49kJU51wQ28v+HF36/bVVBe4laa4Wzwgq4X4 wWIB9zIfQckTG5QtY9T1JcJONI5VtVHzr+zcoj6sEONy8Mv8SPD/JqbfTb+VD+P7 d1y2eMrsYal6gl7C3Fzaf3XxppdjkSmvg4hr6R3G+RB3kuxspbA== ARC-Authentication-Results: i=1; mx4.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: mx4.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 S1753030AbeBKEeT (ORCPT ); Sat, 10 Feb 2018 23:34:19 -0500 Received: from shadbolt.e.decadent.org.uk ([88.96.1.126]:41659 "EHLO shadbolt.e.decadent.org.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752923AbeBKEeG (ORCPT ); Sat, 10 Feb 2018 23:34:06 -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, "Paolo Bonzini" , "Ladi Prosek" Date: Sun, 11 Feb 2018 04:31:11 +0000 Message-ID: X-Mailer: LinuxStableQueue (scripts by bwh) Subject: [PATCH 3.16 019/136] 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: 3.16.54-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 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 @@ -8695,6 +8695,8 @@ static void load_vmcs12_host_state(struc 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); /* If not VM_EXIT_CLEAR_BNDCFGS, the L2 value propagates to L1. */ if (vmcs12->vm_exit_controls & VM_EXIT_CLEAR_BNDCFGS)