diff options
Diffstat (limited to 'qemu/roms/ipxe/src/include/ipxe/efi/efi_entropy.h')
-rw-r--r-- | qemu/roms/ipxe/src/include/ipxe/efi/efi_entropy.h | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/qemu/roms/ipxe/src/include/ipxe/efi/efi_entropy.h b/qemu/roms/ipxe/src/include/ipxe/efi/efi_entropy.h new file mode 100644 index 000000000..39a667355 --- /dev/null +++ b/qemu/roms/ipxe/src/include/ipxe/efi/efi_entropy.h @@ -0,0 +1,35 @@ +#ifndef _IPXE_EFI_ENTROPY_H +#define _IPXE_EFI_ENTROPY_H + +/** @file + * + * EFI entropy source + * + */ + +FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL ); + +#include <stdint.h> + +#ifdef ENTROPY_EFI +#define ENTROPY_PREFIX_efi +#else +#define ENTROPY_PREFIX_efi __efi_ +#endif + +/** + * min-entropy per sample + * + * @ret min_entropy min-entropy of each sample + */ +static inline __always_inline double +ENTROPY_INLINE ( efi, min_entropy_per_sample ) ( void ) { + + /* We use essentially the same mechanism as for the BIOS + * RTC-based entropy source, and so assume the same + * min-entropy per sample. + */ + return 1.3; +} + +#endif /* _IPXE_EFI_ENTROPY_H */ |