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Diffstat (limited to 'arch/mips/kvm/kvm_mips_commpage.c')
-rw-r--r--arch/mips/kvm/kvm_mips_commpage.c37
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 000000000000..3873b1ecc40f
--- /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;
+}