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authorTimos Ampelikiotis <t.ampelikiotis@virtualopensystems.com>2023-10-10 11:40:56 +0000
committerTimos Ampelikiotis <t.ampelikiotis@virtualopensystems.com>2023-10-10 11:40:56 +0000
commite02cda008591317b1625707ff8e115a4841aa889 (patch)
treeaee302e3cf8b59ec2d32ec481be3d1afddfc8968 /contrib/elf2dmp/addrspace.h
parentcc668e6b7e0ffd8c9d130513d12053cf5eda1d3b (diff)
Introduce Virtio-loopback epsilon release:
Epsilon release introduces a new compatibility layer which make virtio-loopback design to work with QEMU and rust-vmm vhost-user backend without require any changes. Signed-off-by: Timos Ampelikiotis <t.ampelikiotis@virtualopensystems.com> Change-Id: I52e57563e08a7d0bdc002f8e928ee61ba0c53dd9
Diffstat (limited to 'contrib/elf2dmp/addrspace.h')
-rw-r--r--contrib/elf2dmp/addrspace.h44
1 files changed, 44 insertions, 0 deletions
diff --git a/contrib/elf2dmp/addrspace.h b/contrib/elf2dmp/addrspace.h
new file mode 100644
index 000000000..00b44c121
--- /dev/null
+++ b/contrib/elf2dmp/addrspace.h
@@ -0,0 +1,44 @@
+/*
+ * Copyright (c) 2018 Virtuozzo International GmbH
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2 or later.
+ *
+ */
+
+#ifndef ADDRSPACE_H
+#define ADDRSPACE_H
+
+#include "qemu_elf.h"
+
+#define ELF2DMP_PAGE_BITS 12
+#define ELF2DMP_PAGE_SIZE (1ULL << ELF2DMP_PAGE_BITS)
+#define ELF2DMP_PFN_MASK (~(ELF2DMP_PAGE_SIZE - 1))
+
+#define INVALID_PA UINT64_MAX
+
+struct pa_block {
+ uint8_t *addr;
+ uint64_t paddr;
+ uint64_t size;
+};
+
+struct pa_space {
+ size_t block_nr;
+ struct pa_block *block;
+};
+
+struct va_space {
+ uint64_t dtb;
+ struct pa_space *ps;
+};
+
+int pa_space_create(struct pa_space *ps, QEMU_Elf *qemu_elf);
+void pa_space_destroy(struct pa_space *ps);
+
+void va_space_create(struct va_space *vs, struct pa_space *ps, uint64_t dtb);
+void va_space_set_dtb(struct va_space *vs, uint64_t dtb);
+void *va_space_resolve(struct va_space *vs, uint64_t va);
+int va_space_rw(struct va_space *vs, uint64_t addr,
+ void *buf, size_t size, int is_write);
+
+#endif /* ADDRSPACE_H */