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loader.kboot: smbios: Add a comment about v3 entry point being favored

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Note that the behavior here is consistent with BIOS and EFI boot.

Reviewed by:    imp, markj
MFC after:      2 weeks
Sponsored by:   The FreeBSD Foundation
Differential Revision:  https://reviews.freebsd.org/D49293

(cherry picked from commit 0f492f79084f2f88c9d5ade92f900e26cc47a7d0)
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Olivier Certner 2025-03-05 11:47:53 +01:00
parent 807d51be80
commit 0c5d22eacf
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1 changed files with 4 additions and 0 deletions
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4
stand/kboot/kboot/main.c
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@ -259,6 +259,10 @@ kboot_find_smbios(void)
ep = buffer + strlen(buffer);
walker = buffer;
while (walker <= ep) {
/*
* Linux outputs the v3 table first if present, so we will
* choose it in priority.
*/
if (strncmp("SMBIOS3=", walker, 8) == 0)
return((vm_offset_t)strtoull(walker + 8, NULL, 0));
if (strncmp("SMBIOS=", walker, 7) == 0)