The branch main has been updated by cperciva:
URL:
https://cgit.FreeBSD.org/src/commit/?id=714a6d436819d446e01d1e4741fbe1089a23fe57
commit 714a6d436819d446e01d1e4741fbe1089a23fe57
Author: Colin Percival <cperc...@freebsd.org>
AuthorDate: 2024-09-18 11:02:15 +0000
Commit: Colin Percival <cperc...@freebsd.org>
CommitDate: 2024-09-22 07:35:48 +0000
EC2: Set entropy_efi_seed_size to 64
This dramatically improves boot speeds on Graviton 2 instances.
MFC after: 1 week
Sponsored by: Amazon
Differential Revision: https://reviews.freebsd.org/D46636
---
release/tools/ec2.conf | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/release/tools/ec2.conf b/release/tools/ec2.conf
index 34434f86a0b1..9e9471b55149 100644
--- a/release/tools/ec2.conf
+++ b/release/tools/ec2.conf
@@ -38,6 +38,10 @@ ec2_common() {
echo 'autoboot_delay="-1"' >> ${DESTDIR}/boot/loader.conf
echo 'beastie_disable="YES"' >> ${DESTDIR}/boot/loader.conf
+ # The EFI RNG on Graviton 2 is particularly slow if we ask for the
+ # default 2048 bytes of entropy; ask for 64 bytes instead.
+ echo 'entropy_efi_seed_size="64"' >> ${DESTDIR}/boot/loader.conf
+
# Tell gptboot not to wait 3 seconds for a keypress which will
# never arrive.
printf -- "-n\n" > ${DESTDIR}/boot.config
