From b58fe4eb29fbd3236df0f7fdfad4393d2536dbb5 Mon Sep 17 00:00:00 2001
From: Colin Percival <cperciva@FreeBSD.org>
Date: Wed, 18 Sep 2024 04:01:55 -0700
Subject: [PATCH] loader: Instrument EFI GetRNG with TSLOG

On some systems, the EFI GetRNG is slow.  Make it show up in flamecharts.

MFC after:	1 week
Sponsored by:	Amazon
Differential Revision:	https://reviews.freebsd.org/D46631
---
 stand/efi/loader/main.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/stand/efi/loader/main.c b/stand/efi/loader/main.c
index 790d5c0ce1a..17676cd9deb 100644
--- a/stand/efi/loader/main.c
+++ b/stand/efi/loader/main.c
@@ -1268,7 +1268,9 @@ command_seed_entropy(int argc, char *argv[])
 		return (CMD_ERROR);
 	}
 
+	TSENTER2("rng->GetRNG");
 	status = rng->GetRNG(rng, NULL, size, (UINT8 *)buf);
+	TSEXIT();
 	if (status != EFI_SUCCESS) {
 		free(buf);
 		command_errmsg = "GetRNG failed";