AMD processor microcode support added to -current

Thanks to a series of commits by Jonathan Gray (jsg@), -current now has support for microcode (updates) for AMD (amd64 and i386) processors:

CVSROOT:	/cvs
Module name:	src
Changes by:	jsg@cvs.openbsd.org	2023/07/21 21:46:09

Modified files:
	usr.sbin/fw_update: patterns.c 

Log message:
match AMD x86 CPUs in fw_update(8)
ok deraadt@

CVSROOT:	/cvs
Module name:	src
Changes by:	jsg@cvs.openbsd.org	2023/07/22 04:11:20

Modified files:
	sys/arch/amd64/stand/boot: conf.c 
	sys/arch/amd64/stand/cdboot: conf.c 
	sys/arch/amd64/stand/efiboot: conf.c exec_i386.c 
	sys/arch/amd64/stand/libsa: exec_i386.c 
	sys/arch/amd64/stand/pxeboot: conf.c 
	sys/arch/i386/stand/boot: conf.c 
	sys/arch/i386/stand/cdboot: conf.c 
	sys/arch/i386/stand/libsa: exec_i386.c 
	sys/arch/i386/stand/pxeboot: conf.c 

Log message:
BOOTARG_UCODE for AMD
ok deraadt@

CVSROOT:	/cvs
Module name:	src
Changes by:	jsg@cvs.openbsd.org	2023/07/22 19:46:37

Modified files:
	sys/arch/amd64/amd64: ucode.c 

Log message:
update AMD CPU microcode if a newer patch is available
ok deraadt@

CVSROOT:	/cvs
Module name:	src
Changes by:	jsg@cvs.openbsd.org	2023/07/22 20:59:53

Modified files:
	sys/arch/i386/i386: ucode.c 

Log message:
update AMD CPU microcode if a newer patch is available
ok deraadt@

Stuart Henderson (sthen@) committed the firmware port:

CVSROOT:	/cvs
Module name:	ports
Changes by:	sthen@cvs.openbsd.org	2023/07/21 17:51:51

Log message:
    import ports/sysutils/firmware/amd, microcode update binaries for AMD CPUs.
    not yet used, but adding it now so we can more easily test update mechanisms.
    
    ok jsg@
    
    Status:
    
    Vendor Tag:	sthen
    Release Tags:	sthen_20230722
    
    N ports/sysutils/firmware/amd/Makefile
    N ports/sysutils/firmware/amd/distinfo
    N ports/sysutils/firmware/amd/pkg/DESCR
    N ports/sysutils/firmware/amd/pkg/PLIST
    
    No conflicts created by this import

It's great to see support for the AMD side gaining equivalence with that for Intel (for which support was added in 2018).