From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail333.us4.mandrillapp.com ([205.201.137.77]:34475 "EHLO mail333.us4.mandrillapp.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752381AbcCAIPi (ORCPT ); Tue, 1 Mar 2016 03:15:38 -0500 Received: from pmta03.dal05.mailchimp.com (127.0.0.1) by mail333.us4.mandrillapp.com id hql7qk174noq for ; Tue, 1 Mar 2016 08:15:35 +0000 (envelope-from ) From: Subject: Patch "MIPS: KVM: Fix CACHE immediate offset sign extension" has been added to the 3.10-stable tree To: , , , , Cc: , Message-Id: <1456814525242128@kroah.com> Date: Tue, 01 Mar 2016 08:15:35 +0000 MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit Sender: stable-owner@vger.kernel.org List-ID: This is a note to let you know that I've just added the patch titled MIPS: KVM: Fix CACHE immediate offset sign extension to the 3.10-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: mips-kvm-fix-cache-immediate-offset-sign-extension.patch and it can be found in the queue-3.10 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let know about it. >>From c5c2a3b998f1ff5a586f9d37e154070b8d550d17 Mon Sep 17 00:00:00 2001 From: James Hogan Date: Wed, 11 Nov 2015 14:21:19 +0000 Subject: MIPS: KVM: Fix CACHE immediate offset sign extension From: James Hogan commit c5c2a3b998f1ff5a586f9d37e154070b8d550d17 upstream. The immediate field of the CACHE instruction is signed, so ensure that it gets sign extended by casting it to an int16_t rather than just masking the low 16 bits. Fixes: e685c689f3a8 ("KVM/MIPS32: Privileged instruction/target branch emulation.") Signed-off-by: James Hogan Cc: Ralf Baechle Cc: Paolo Bonzini Cc: Gleb Natapov Cc: linux-mips@linux-mips.org Cc: kvm@vger.kernel.org Signed-off-by: Paolo Bonzini Signed-off-by: James Hogan Signed-off-by: Greg Kroah-Hartman --- arch/mips/kvm/kvm_mips_emul.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/arch/mips/kvm/kvm_mips_emul.c +++ b/arch/mips/kvm/kvm_mips_emul.c @@ -935,7 +935,7 @@ kvm_mips_emulate_cache(uint32_t inst, ui base = (inst >> 21) & 0x1f; op_inst = (inst >> 16) & 0x1f; - offset = inst & 0xffff; + offset = (int16_t)inst; cache = (inst >> 16) & 0x3; op = (inst >> 18) & 0x7; Patches currently in stable-queue which might be from james.hogan@imgtec.com are queue-3.10/mips-kvm-fix-cache-immediate-offset-sign-extension.patch queue-3.10/mips-kvm-uninit-vcpu-in-vcpu_create-error-path.patch queue-3.10/mips-kvm-fix-asid-restoration-logic.patch