diff options
| author | Jason A. Donenfeld <Jason@zx2c4.com> | 2022-09-21 12:07:29 +0200 |
|---|---|---|
| committer | Thomas Huth <thuth@redhat.com> | 2022-09-26 17:23:11 +0200 |
| commit | 3dbc5fdacb5af08dffa408ac7315eae53c4d5497 (patch) | |
| tree | 38b3f4c565db6558d1406b1b38d7b219031af263 /target/s390x/gen-features.c | |
| parent | 9f17bfdab422887807cbd5260ed6b0b6e54ddb33 (diff) | |
target/s390x: support PRNO_TRNG instruction
In order for hosts running inside of TCG to initialize the kernel's
random number generator, we should support the PRNO_TRNG instruction,
backed in the usual way with the qemu_guest_getrandom helper. This is
confirmed working on Linux 5.19.
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Message-Id: <20220921100729.2942008-2-Jason@zx2c4.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
[thuth: turn prno-trng off in avocado test to avoid breaking it]
Signed-off-by: Thomas Huth <thuth@redhat.com>
Diffstat (limited to 'target/s390x/gen-features.c')
| -rw-r--r-- | target/s390x/gen-features.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/target/s390x/gen-features.c b/target/s390x/gen-features.c index baadbf4517..1e3b7c0dc9 100644 --- a/target/s390x/gen-features.c +++ b/target/s390x/gen-features.c @@ -757,6 +757,7 @@ static uint16_t qemu_MAX[] = { S390_FEAT_MSA_EXT_5, S390_FEAT_KIMD_SHA_512, S390_FEAT_KLMD_SHA_512, + S390_FEAT_PRNO_TRNG, }; /****** END FEATURE DEFS ******/ |