From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Daney Subject: [PATCH v5 1/6] mips/kvm: Fix ABI for use of FPU. Date: Wed, 22 May 2013 11:43:51 -0700 Message-ID: <1369248236-27237-2-git-send-email-ddaney.cavm@gmail.com> References: <1369248236-27237-1-git-send-email-ddaney.cavm@gmail.com> Cc: linux-kernel@vger.kernel.org, David Daney To: linux-mips@linux-mips.org, ralf@linux-mips.org, kvm@vger.kernel.org, Sanjay Lal , Gleb Natapov Return-path: In-Reply-To: <1369248236-27237-1-git-send-email-ddaney.cavm@gmail.com> Sender: linux-kernel-owner@vger.kernel.org List-Id: kvm.vger.kernel.org From: David Daney Define a non-empty struct kvm_fpu. Signed-off-by: David Daney --- arch/mips/include/asm/kvm.h | 29 +++++++++++++++++++++-------- 1 file changed, 21 insertions(+), 8 deletions(-) diff --git a/arch/mips/include/asm/kvm.h b/arch/mips/include/asm/kvm.h index 85789ea..0e8f565 100644 --- a/arch/mips/include/asm/kvm.h +++ b/arch/mips/include/asm/kvm.h @@ -1,11 +1,12 @@ /* -* This file is subject to the terms and conditions of the GNU General Public -* License. See the file "COPYING" in the main directory of this archive -* for more details. -* -* Copyright (C) 2012 MIPS Technologies, Inc. All rights reserved. -* Authors: Sanjay Lal -*/ + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. + * + * Copyright (C) 2012 MIPS Technologies, Inc. All rights reserved. + * Copyright (C) 2013 Cavium, Inc. + * Authors: Sanjay Lal + */ #ifndef __LINUX_KVM_MIPS_H #define __LINUX_KVM_MIPS_H @@ -31,8 +32,20 @@ struct kvm_regs { struct kvm_sregs { }; -/* for KVM_GET_FPU and KVM_SET_FPU */ +/* + * for KVM_GET_FPU and KVM_SET_FPU + * + * If Status[FR] is zero (32-bit FPU), the upper 32-bits of the FPRs + * are zero filled. + */ struct kvm_fpu { + __u64 fpr[32]; + __u32 fir; + __u32 fccr; + __u32 fexr; + __u32 fenr; + __u32 fcsr; + __u32 pad; }; struct kvm_debug_exit_arch { -- 1.7.11.7