diff options
Diffstat (limited to 'qemu/roms/ipxe/src/include/ipxe/linux/linux_entropy.h')
| -rw-r--r-- | qemu/roms/ipxe/src/include/ipxe/linux/linux_entropy.h | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/qemu/roms/ipxe/src/include/ipxe/linux/linux_entropy.h b/qemu/roms/ipxe/src/include/ipxe/linux/linux_entropy.h index bd89bd52f..afef6fe19 100644 --- a/qemu/roms/ipxe/src/include/ipxe/linux/linux_entropy.h +++ b/qemu/roms/ipxe/src/include/ipxe/linux/linux_entropy.h @@ -3,11 +3,11 @@ /** @file * - * iPXE entropy API for linux + * /dev/random-based entropy source * */ -FILE_LICENCE(GPL2_OR_LATER); +FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL ); #ifdef ENTROPY_LINUX #define ENTROPY_PREFIX_linux @@ -23,10 +23,12 @@ FILE_LICENCE(GPL2_OR_LATER); static inline __always_inline double ENTROPY_INLINE ( linux, min_entropy_per_sample ) ( void ) { - /* We read single bytes from /dev/random and assume that each - * contains full entropy. + /* linux_get_noise() reads a single byte from /dev/random, + * which is supposed to block until a sufficient amount of + * entropy is available. We therefore assume that each sample + * contains exactly 8 bits of entropy. */ - return 8; + return 8.0; } #endif /* _IPXE_LINUX_ENTROPY_H */ |