1 files changed, 70 insertions, 0 deletions
diff --git a/target/i386/kvm/xen-compat.h b/target/i386/kvm/xen-compat.h
new file mode 100644
index 0000000..7f30180
--- /dev/null
+++ b/target/i386/kvm/xen-compat.h
@@ -0,0 +1,70 @@
+/*
+ * Xen HVM emulation support in KVM
+ *
+ * Copyright © 2022 Amazon.com, Inc. or its affiliates. All Rights Reserved.
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2 or later.
+ * See the COPYING file in the top-level directory.
+ *
+ */
+
+#ifndef QEMU_I386_KVM_XEN_COMPAT_H
+#define QEMU_I386_KVM_XEN_COMPAT_H
+
+#include "hw/xen/interface/memory.h"
+
+typedef uint32_t compat_pfn_t;
+typedef uint32_t compat_ulong_t;
+typedef uint32_t compat_ptr_t;
+
+#define __DEFINE_COMPAT_HANDLE(name, type)      \
+    typedef struct {                            \
+        compat_ptr_t c;                         \
+        type *_[0] __attribute__((packed));   \
+    } __compat_handle_ ## name;                 \
+
+#define DEFINE_COMPAT_HANDLE(name) __DEFINE_COMPAT_HANDLE(name, name)
+#define COMPAT_HANDLE(name) __compat_handle_ ## name
+
+DEFINE_COMPAT_HANDLE(compat_pfn_t);
+DEFINE_COMPAT_HANDLE(compat_ulong_t);
+DEFINE_COMPAT_HANDLE(int);
+
+struct compat_xen_add_to_physmap {
+    domid_t domid;
+    uint16_t size;
+    unsigned int space;
+    compat_ulong_t idx;
+    compat_pfn_t gpfn;
+};
+
+struct compat_xen_add_to_physmap_batch {
+    domid_t domid;
+    uint16_t space;
+    uint16_t size;
+    uint16_t extra;
+    COMPAT_HANDLE(compat_ulong_t) idxs;
+    COMPAT_HANDLE(compat_pfn_t) gpfns;
+    COMPAT_HANDLE(int) errs;
+};
+
+struct compat_physdev_map_pirq {
+    domid_t domid;
+    uint16_t pad;
+    /* IN */
+    int type;
+    /* IN (ignored for ..._MULTI_MSI) */
+    int index;
+    /* IN or OUT */
+    int pirq;
+    /* IN - high 16 bits hold segment for ..._MSI_SEG and ..._MULTI_MSI */
+    int bus;
+    /* IN */
+    int devfn;
+    /* IN (also OUT for ..._MULTI_MSI) */
+    int entry_nr;
+    /* IN */
+    uint64_t table_base;
+} __attribute__((packed));
+
+#endif /* QEMU_I386_XEN_COMPAT_H */