SFI: use sfi mmap table to build a e820 table for boot_parameters

Signed-off-by: Feng Tang <feng.tang@intel.com>

1 files changed, 58 insertions, 0 deletions

diff --git a/sfi.h b/sfi.h
new file mode 100644
index 0000000..f190f96
--- /dev/null
+++ b/sfi.h
@@ -0,0 +1,58 @@
+#ifndef _SFI_H
+#define _SFI_H
+
+/* Memory type definitions */
+enum sfi_mem_type {
+	SFI_MEM_RESERVED,
+	SFI_LOADER_CODE,
+	SFI_LOADER_DATA,
+	SFI_BOOT_SERVICE_CODE,
+	SFI_BOOT_SERVICE_DATA,
+	SFI_RUNTIME_SERVICE_CODE,
+	SFI_RUNTIME_SERVICE_DATA,
+	SFI_MEM_CONV,
+	SFI_MEM_UNUSABLE,
+	SFI_ACPI_RECLAIM,
+	SFI_ACPI_NVS,
+	SFI_MEM_MMIO,
+	SFI_MEM_IOPORT,
+	SFI_PAL_CODE,
+	SFI_MEM_TYPEMAX,
+};
+
+struct sfi_mem_entry {
+	enum sfi_mem_type type;
+	u64 phy_start;
+	u64 vir_start;
+	u64 pages;
+	u64 attrib;
+};
+
+struct sfi_table_header {
+	char signature[4];
+	u32 length;
+	u8 revision;
+	u8 checksum;
+	char oem_id[6];
+	char oem_table_id[8];
+};
+
+struct sfi_table {
+	struct sfi_table_header header;
+	u64 pentry[1];
+};
+
+#define SFI_TBL_HEADER_LEN      24
+
+#define SFI_GET_ENTRY_NUM(ptable, entry) \
+	((ptable->header.length - SFI_TBL_HEADER_LEN) / \
+	(sizeof(struct entry)))
+
+#define E820_RAM	1
+#define E820_RESERVED	2
+#define E820_ACPI	3
+#define E820_NVS	4
+#define E820_UNUSABLE	5
+
+extern void sfi_setup_e820(struct boot_params *bp);
+#endif /* _SFI_H */