1 files changed, 56 insertions, 0 deletions

diff --git a/arch/arm/include/asm/kvm_mmio.h b/arch/arm/include/asm/kvm_mmio.h
new file mode 100644
index 000000000000..adcc0d7d3175
--- /dev/null
+++ b/arch/arm/include/asm/kvm_mmio.h
@@ -0,0 +1,56 @@
+/*
+ * Copyright (C) 2012 - Virtual Open Systems and Columbia University
+ * Author: Christoffer Dall <c.dall@virtualopensystems.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License, version 2, as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+ */
+
+#ifndef __ARM_KVM_MMIO_H__
+#define __ARM_KVM_MMIO_H__
+
+#include <linux/kvm_host.h>
+#include <asm/kvm_asm.h>
+#include <asm/kvm_arm.h>
+
+struct kvm_decode {
+        unsigned long rt;
+        bool sign_extend;
+};
+
+/*
+ * The in-kernel MMIO emulation code wants to use a copy of run->mmio,
+ * which is an anonymous type. Use our own type instead.
+ */
+struct kvm_exit_mmio {
+        phys_addr_t     phys_addr;
+        u8              data[8];
+        u32             len;
+        bool            is_write;
+};
+
+static inline void kvm_prepare_mmio(struct kvm_run *run,
+                                    struct kvm_exit_mmio *mmio)
+{
+        run->mmio.phys_addr     = mmio->phys_addr;
+        run->mmio.len           = mmio->len;
+        run->mmio.is_write      = mmio->is_write;
+        memcpy(run->mmio.data, mmio->data, mmio->len);
+        run->exit_reason        = KVM_EXIT_MMIO;
+}
+
+int kvm_handle_mmio_return(struct kvm_vcpu *vcpu, struct kvm_run *run);
+int io_mem_abort(struct kvm_vcpu *vcpu, struct kvm_run *run,
+                 phys_addr_t fault_ipa);
+
+#endif  /* __ARM_KVM_MMIO_H__ */