--- /dev/null
+#ifndef _IPXE_ERRNO_EFI_H
+#define _IPXE_ERRNO_EFI_H
+
+/**
+ * @file
+ *
+ * EFI platform error codes
+ *
+ * We derive our platform error codes from the possible values for
+ * EFI_STATUS defined in the UEFI specification.
+ *
+ * EFI_STATUS codes are 32/64-bit values consisting of a top bit which
+ * is set for errors and clear for warnings, and a mildly undefined
+ * code of low bits indicating the precise error/warning code. Errors
+ * and warnings have completely separate namespaces.
+ *
+ * We assume that no EFI_STATUS code will ever be defined which uses
+ * more than bits 0-6 of the low bits. We then choose to encode our
+ * platform-specific error by mapping bit 31/63 of the EFI_STATUS to
+ * bit 7 of the platform-specific error code, and preserving bits 0-6
+ * as-is.
+ */
+
+FILE_LICENCE ( GPL2_OR_LATER );
+
+#include <ipxe/efi/efi.h>
+#include <ipxe/efi/Uefi/UefiBaseType.h>
+
+/** Bit shift for EFI error/warning bit */
+#define EFI_ERR_SHIFT ( 8 * ( sizeof ( EFI_STATUS ) - 1 ) )
+
+/**
+ * Convert platform error code to platform component of iPXE error code
+ *
+ * @v platform Platform error code
+ * @ret errno Platform component of iPXE error code
+ */
+#define PLATFORM_TO_ERRNO( platform ) \
+ ( ( (platform) | \
+ ( ( ( EFI_STATUS ) (platform) ) >> EFI_ERR_SHIFT ) ) & 0xff )
+
+/**
+ * Convert iPXE error code to platform error code
+ *
+ * @v errno iPXE error code
+ * @ret platform Platform error code
+ */
+#define ERRNO_TO_PLATFORM( errno ) \
+ ( ( ( ( EFI_STATUS ) (errno) & 0x80 ) << EFI_ERR_SHIFT ) | \
+ ( (errno) & 0x7f ) )
+
+/* Platform-specific error codes */
+#define PLATFORM_ENOERR EFI_SUCCESS
+#define PLATFORM_E2BIG EFI_BUFFER_TOO_SMALL
+#define PLATFORM_EACCES EFI_ACCESS_DENIED
+#define PLATFORM_EADDRINUSE EFI_ALREADY_STARTED
+#define PLATFORM_EADDRNOTAVAIL EFI_NOT_READY
+#define PLATFORM_EAFNOSUPPORT EFI_UNSUPPORTED
+#define PLATFORM_EAGAIN EFI_NOT_READY
+#define PLATFORM_EALREADY EFI_ALREADY_STARTED
+#define PLATFORM_EBADF EFI_INVALID_PARAMETER
+#define PLATFORM_EBADMSG EFI_PROTOCOL_ERROR
+#define PLATFORM_EBUSY EFI_NO_RESPONSE
+#define PLATFORM_ECANCELED EFI_ABORTED
+#define PLATFORM_ECHILD EFI_NOT_FOUND
+#define PLATFORM_ECONNABORTED EFI_ABORTED
+#define PLATFORM_ECONNREFUSED EFI_NO_RESPONSE
+#define PLATFORM_ECONNRESET EFI_ABORTED
+#define PLATFORM_EDEADLK EFI_NOT_READY
+#define PLATFORM_EDESTADDRREQ EFI_PROTOCOL_ERROR
+#define PLATFORM_EDOM EFI_INVALID_PARAMETER
+#define PLATFORM_EDQUOT EFI_VOLUME_FULL
+#define PLATFORM_EEXIST EFI_WRITE_PROTECTED
+#define PLATFORM_EFAULT EFI_INVALID_PARAMETER
+#define PLATFORM_EFBIG EFI_END_OF_MEDIA
+#define PLATFORM_EHOSTUNREACH EFI_NO_RESPONSE
+#define PLATFORM_EIDRM EFI_INVALID_PARAMETER
+#define PLATFORM_EILSEQ EFI_INVALID_PARAMETER
+#define PLATFORM_EINPROGRESS EFI_ALREADY_STARTED
+#define PLATFORM_EINTR EFI_NOT_READY
+#define PLATFORM_EINVAL EFI_INVALID_PARAMETER
+#define PLATFORM_EIO EFI_PROTOCOL_ERROR
+#define PLATFORM_EISCONN EFI_ALREADY_STARTED
+#define PLATFORM_EISDIR EFI_PROTOCOL_ERROR
+#define PLATFORM_ELOOP EFI_VOLUME_CORRUPTED
+#define PLATFORM_EMFILE EFI_OUT_OF_RESOURCES
+#define PLATFORM_EMLINK EFI_OUT_OF_RESOURCES
+#define PLATFORM_EMSGSIZE EFI_BAD_BUFFER_SIZE
+#define PLATFORM_EMULTIHOP EFI_INVALID_PARAMETER
+#define PLATFORM_ENAMETOOLONG EFI_INVALID_PARAMETER
+#define PLATFORM_ENETDOWN EFI_NO_RESPONSE
+#define PLATFORM_ENETRESET EFI_ABORTED
+#define PLATFORM_ENETUNREACH EFI_NO_RESPONSE
+#define PLATFORM_ENFILE EFI_OUT_OF_RESOURCES
+#define PLATFORM_ENOBUFS EFI_OUT_OF_RESOURCES
+#define PLATFORM_ENODATA EFI_NO_RESPONSE
+#define PLATFORM_ENODEV EFI_DEVICE_ERROR
+#define PLATFORM_ENOENT EFI_NOT_FOUND
+#define PLATFORM_ENOEXEC EFI_LOAD_ERROR
+#define PLATFORM_ENOLCK EFI_OUT_OF_RESOURCES
+#define PLATFORM_ENOLINK EFI_OUT_OF_RESOURCES
+#define PLATFORM_ENOMEM EFI_OUT_OF_RESOURCES
+#define PLATFORM_ENOMSG EFI_PROTOCOL_ERROR
+#define PLATFORM_ENOPROTOOPT EFI_UNSUPPORTED
+#define PLATFORM_ENOSPC EFI_VOLUME_FULL
+#define PLATFORM_ENOSR EFI_OUT_OF_RESOURCES
+#define PLATFORM_ENOSTR EFI_PROTOCOL_ERROR
+#define PLATFORM_ENOSYS EFI_UNSUPPORTED
+#define PLATFORM_ENOTCONN EFI_NOT_STARTED
+#define PLATFORM_ENOTDIR EFI_VOLUME_CORRUPTED
+#define PLATFORM_ENOTEMPTY EFI_VOLUME_CORRUPTED
+#define PLATFORM_ENOTSOCK EFI_INVALID_PARAMETER
+#define PLATFORM_ENOTSUP EFI_UNSUPPORTED
+#define PLATFORM_ENOTTY EFI_UNSUPPORTED
+#define PLATFORM_ENXIO EFI_NOT_FOUND
+#define PLATFORM_EOPNOTSUPP EFI_UNSUPPORTED
+#define PLATFORM_EOVERFLOW EFI_BUFFER_TOO_SMALL
+#define PLATFORM_EPERM EFI_ACCESS_DENIED
+#define PLATFORM_EPIPE EFI_ABORTED
+#define PLATFORM_EPROTO EFI_PROTOCOL_ERROR
+#define PLATFORM_EPROTONOSUPPORT EFI_UNSUPPORTED
+#define PLATFORM_EPROTOTYPE EFI_INVALID_PARAMETER
+#define PLATFORM_ERANGE EFI_BUFFER_TOO_SMALL
+#define PLATFORM_EROFS EFI_WRITE_PROTECTED
+#define PLATFORM_ESPIPE EFI_END_OF_FILE
+#define PLATFORM_ESRCH EFI_NOT_STARTED
+#define PLATFORM_ESTALE EFI_PROTOCOL_ERROR
+#define PLATFORM_ETIME EFI_TIMEOUT
+#define PLATFORM_ETIMEDOUT EFI_TIMEOUT
+#define PLATFORM_ETXTBSY EFI_MEDIA_CHANGED
+#define PLATFORM_EWOULDBLOCK EFI_NOT_READY
+#define PLATFORM_EXDEV EFI_VOLUME_CORRUPTED
+
+#endif /* _IPXE_ERRNO_EFI_H */
Code Review / kvmfornfv.git / blobdiff