kjarna initial impl

1 files changed, 38 insertions, 0 deletions

diff --git a/kjarna/kjarna_efi.h b/kjarna/kjarna_efi.h
new file mode 100644
index 0000000..e24cc7f
--- /dev/null
+++ b/kjarna/kjarna_efi.h
@@ -0,0 +1,38 @@
+#pragma once
+
+#include <posix/sys/types.h>
+
+#include <efi/types.h>
+#include <efi/tables.h>
+
+#include <kjarna/interface.h>
+
+struct efi_context
+{
+	EFI_HANDLE const handle;
+	EFI_SYSTEM_TABLE * const system_table;
+};
+
+extern struct efi_context const *efi_context;
+extern EFI_STATUS efi_errno;
+
+#define gST efi_context->system_table
+#define gBS efi_context->system_table->BootServices
+
+void *efi_get_protocol(EFI_HANDLE handle, EFI_GUID *guid);
+
+int SYSV_ABI efi_open(const char *path, int flags, int mode);
+int SYSV_ABI efi_close(int fd);
+off_t SYSV_ABI efi_lseek(int fd, off_t offset, int whence);
+ssize_t SYSV_ABI efi_read(int fd, void *buffer, size_t length);
+ssize_t SYSV_ABI efi_write(int fd, const void *buffer, size_t length);
+
+void * SYSV_ABI efi_mmap(void *addr, size_t length, int prot, int flags, int fd, off_t offset);
+int SYSV_ABI efi_munmap(void *addr, size_t length);
+
+void *efi_alloc_pool(size_t size);
+void *efi_calloc_pool(size_t count, size_t size);
+void efi_free_pool(void *block);
+
+int runtime_start(void);
+