git: 4358928e235c - main - amd64 loader: plug hard hang with serial console enabled

The branch main has been updated by glebius:

URL: https://cgit.FreeBSD.org/src/commit/?id=4358928e235c1e188ad6b4650d78bcceb225b909

commit 4358928e235c1e188ad6b4650d78bcceb225b909
Author:     Gleb Smirnoff <glebius@FreeBSD.org>
AuthorDate: 2023-03-31 18:19:25 +0000
Commit:     Gleb Smirnoff <glebius@FreeBSD.org>
CommitDate: 2023-03-31 18:19:25 +0000

    amd64 loader: plug hard hang with serial console enabled
    
    The hang basically bricks a physical box and it can be recovered
    only if you are able to boot from alternate media.  This isn't a
    perfect fix, but throw it in before loader experts decide on
    proper one.
    
    Submitted by:   whu
    Fixes:          927358dd98cb902160093e0dc0bac002d6b43858
---
 stand/efi/loader/efiserialio.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/stand/efi/loader/efiserialio.c b/stand/efi/loader/efiserialio.c
index 5fbc700f6ac2..0f37ef8b87dd 100644
--- a/stand/efi/loader/efiserialio.c
+++ b/stand/efi/loader/efiserialio.c
@@ -265,6 +265,8 @@ comc_probe(struct console *sc)
 	 */
 	env = getenv("smbios.bios.version");
 	if (env == NULL || strncmp(env, "Hyper-V", 7) != 0) {
+		/* Disable being seen as "comconsole". */
+		comconsole.c_name = "efiserialio";
 		return;
 	}
 #endif