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| author | Richard Henderson <richard.henderson@linaro.org> | 2019-03-14 16:12:04 -0700 |
|---|---|---|
| committer | Richard Henderson <richard.henderson@linaro.org> | 2019-05-22 12:38:54 -0400 |
| commit | e8196d2111d2eb060a42feadef119de3aadae4f6 (patch) | |
| tree | 22da24b03b3c382382a706dc649baf58479e2b2e /hw/misc/exynos4210_rng.c | |
| parent | 3090c980ed06e666a4b394fdb46284f220e091d1 (diff) | |
| download | qemu-e8196d2111d2eb060a42feadef119de3aadae4f6.zip qemu-e8196d2111d2eb060a42feadef119de3aadae4f6.tar.gz qemu-e8196d2111d2eb060a42feadef119de3aadae4f6.tar.bz2 | |
hw/misc/exynos4210_rng: Use qemu_guest_getrandom
The random number is intended for use by the guest. As such, we should
honor the -seed argument for reproducibility.
Reviewed-by: Laurent Vivier <lvivier@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Diffstat (limited to 'hw/misc/exynos4210_rng.c')
| -rw-r--r-- | hw/misc/exynos4210_rng.c | 11 |
1 files changed, 4 insertions, 7 deletions
diff --git a/hw/misc/exynos4210_rng.c b/hw/misc/exynos4210_rng.c index 4ecbebd..0e70ffb 100644 --- a/hw/misc/exynos4210_rng.c +++ b/hw/misc/exynos4210_rng.c @@ -18,10 +18,10 @@ */ #include "qemu/osdep.h" -#include "crypto/random.h" #include "hw/sysbus.h" #include "qapi/error.h" #include "qemu/log.h" +#include "qemu/guest-random.h" #define DEBUG_EXYNOS_RNG 0 @@ -109,7 +109,6 @@ static void exynos4210_rng_set_seed(Exynos4210RngState *s, unsigned int i, static void exynos4210_rng_run_engine(Exynos4210RngState *s) { Error *err = NULL; - int ret; /* Seed set? */ if ((s->reg_status & EXYNOS4210_RNG_STATUS_SEED_SETTING_DONE) == 0) { @@ -127,13 +126,11 @@ static void exynos4210_rng_run_engine(Exynos4210RngState *s) } /* Get randoms */ - ret = qcrypto_random_bytes((uint8_t *)s->randr_value, - sizeof(s->randr_value), &err); - if (!ret) { + if (qemu_guest_getrandom(s->randr_value, sizeof(s->randr_value), &err)) { + error_report_err(err); + } else { /* Notify that PRNG is ready */ s->reg_status |= EXYNOS4210_RNG_STATUS_PRNG_DONE; - } else { - error_report_err(err); } out: |