Define basic structures to be used by both host side and guest side.
Signed-off-by: Sasha Levin <levinsasha928@xxxxxxxxx>
---
arch/x86/kvm/tmem/tmem.h | 62 ++++++++++++++++++++++++++++++++++++++++++++++
1 files changed, 62 insertions(+), 0 deletions(-)
create mode 100644 arch/x86/kvm/tmem/tmem.h
diff --git a/arch/x86/kvm/tmem/tmem.h b/arch/x86/kvm/tmem/tmem.h
new file mode 100644
index 0000000..a6f0032
--- /dev/null
+++ b/arch/x86/kvm/tmem/tmem.h
@@ -0,0 +1,62 @@
+#ifndef _KVM_TMEM_H_
+#define _KVM_TMEM_H_
+
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/kvm_types.h>
+
+#define TMEM_CONTROL 0
+#define TMEM_NEW_POOL 1
+#define TMEM_DESTROY_POOL 2
+#define TMEM_NEW_PAGE 3
+#define TMEM_PUT_PAGE 4
+#define TMEM_GET_PAGE 5
+#define TMEM_FLUSH_PAGE 6
+#define TMEM_FLUSH_OBJECT 7
+#define TMEM_READ 8
+#define TMEM_WRITE 9
+#define TMEM_XCHG 10
+
+#define TMEM_POOL_PERSIST 1
+#define TMEM_POOL_SHARED 2
+#define TMEM_POOL_PAGESIZE_SHIFT 4
+#define TMEM_VERSION_SHIFT 24
+
+#define TMEM_SPEC_VERSION 1
+
+struct tmem_pool_uuid {
+ __u64 uuid_lo;
+ __u64 uuid_hi;
+};
+
+struct tmem_oid {
+ __u64 oid[3];
+};
+
+struct tmem_kvm_op {
+ __u32 cmd;
+ __s32 pool_id;
+ __u16 cli_id;
+ union {
+ struct { /* for cmd == TMEM_NEW_POOL */
+ __u64 uuid[2];
+ __u32 flags;
+ } new;
+ struct {
+ struct tmem_oid oid;
+ __u32 index;
+ __u32 tmem_offset;
+ __u32 pfn_offset;
+ __u32 len;
+ gfn_t gfn; /* guest machine page frame */
+ } gen;
+ } u;
+};
+
+#define TMEM_POOL_PRIVATE_UUID { 0, 0 }
+
+/* flags for tmem_ops.new_pool */
+#define TMEM_POOL_PERSIST 1
+#define TMEM_POOL_SHARED 2
+
+#endif /* _KVM_TMEM_H_ */
--
1.7.8.6
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