1/*
 2* This file is subject to the terms and conditions of the GNU General Public
 3* License.  See the file "COPYING" in the main directory of this archive
 4* for more details.
 5*
 6* commpage, currently used for Virtual COP0 registers.
 7* Mapped into the guest kernel @ 0x0.
 8*
 9* Copyright (C) 2012  MIPS Technologies, Inc.  All rights reserved.
10* Authors: Sanjay Lal <sanjayl@kymasys.com>
11*/
12
13#include <linux/errno.h>
14#include <linux/err.h>
15#include <linux/module.h>
16#include <linux/vmalloc.h>
17#include <linux/fs.h>
18#include <linux/bootmem.h>
19#include <asm/page.h>
20#include <asm/cacheflush.h>
21#include <asm/mmu_context.h>
22
23#include <linux/kvm_host.h>
24
25#include "kvm_mips_comm.h"
26
27void kvm_mips_commpage_init(struct kvm_vcpu *vcpu)
28{
29	struct kvm_mips_commpage *page = vcpu->arch.kseg0_commpage;
30	memset(page, 0, sizeof(struct kvm_mips_commpage));
31
32	/* Specific init values for fields */
33	vcpu->arch.cop0 = &page->cop0;
34	memset(vcpu->arch.cop0, 0, sizeof(struct mips_coproc));
35
36	return;
37}