diff options
Diffstat (limited to 'arch/mips/kvm/kvm_mips_commpage.c')
| -rw-r--r-- | arch/mips/kvm/kvm_mips_commpage.c | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/arch/mips/kvm/kvm_mips_commpage.c b/arch/mips/kvm/kvm_mips_commpage.c new file mode 100644 index 00000000000..3873b1ecc40 --- /dev/null +++ b/arch/mips/kvm/kvm_mips_commpage.c @@ -0,0 +1,37 @@ +/* +* 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. +* +* commpage, currently used for Virtual COP0 registers. +* Mapped into the guest kernel @ 0x0. +* +* Copyright (C) 2012 MIPS Technologies, Inc. All rights reserved. +* Authors: Sanjay Lal <sanjayl@kymasys.com> +*/ + +#include <linux/errno.h> +#include <linux/err.h> +#include <linux/module.h> +#include <linux/vmalloc.h> +#include <linux/fs.h> +#include <linux/bootmem.h> +#include <asm/page.h> +#include <asm/cacheflush.h> +#include <asm/mmu_context.h> + +#include <linux/kvm_host.h> + +#include "kvm_mips_comm.h" + +void kvm_mips_commpage_init(struct kvm_vcpu *vcpu) +{ + struct kvm_mips_commpage *page = vcpu->arch.kseg0_commpage; + memset(page, 0, sizeof(struct kvm_mips_commpage)); + + /* Specific init values for fields */ + vcpu->arch.cop0 = &page->cop0; + memset(vcpu->arch.cop0, 0, sizeof(struct mips_coproc)); + + return; +} |