BOOTARG_UCODE for AMD

ok deraadt@

4 files changed, 25 insertions, 10 deletions

diff --git a/sys/arch/i386/stand/boot/conf.c b/sys/arch/i386/stand/boot/conf.c
index f76ffad2c53..b6cb3946275 100644
--- a/sys/arch/i386/stand/boot/conf.c
+++ b/sys/arch/i386/stand/boot/conf.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: conf.c,v 1.77 2023/04/25 14:48:16 kn Exp $	*/
+/*	$OpenBSD: conf.c,v 1.78 2023/07/22 10:11:20 jsg Exp $	*/
 
 /*
  * Copyright (c) 1996 Michael Shalayeff
@@ -42,7 +42,7 @@
 #include <dev/cons.h>
 #include "debug.h"
 
-const char version[] = "3.45";
+const char version[] = "3.65";
 int	debug = 1;
 
 
diff --git a/sys/arch/i386/stand/cdboot/conf.c b/sys/arch/i386/stand/cdboot/conf.c
index e18d8ba325f..5995647650f 100644
--- a/sys/arch/i386/stand/cdboot/conf.c
+++ b/sys/arch/i386/stand/cdboot/conf.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: conf.c,v 1.44 2023/04/25 14:48:17 kn Exp $	*/
+/*	$OpenBSD: conf.c,v 1.45 2023/07/22 10:11:20 jsg Exp $	*/
 
 /*
  * Copyright (c) 2004 Tom Cosgrove
@@ -43,7 +43,7 @@
 #include <dev/cons.h>
 #include "debug.h"
 
-const char version[] = "3.45";
+const char version[] = "3.65";
 int	debug = 1;
 
 void (*sa_cleanup)(void) = NULL;
diff --git a/sys/arch/i386/stand/libsa/exec_i386.c b/sys/arch/i386/stand/libsa/exec_i386.c
index d9e4da9db28..9bf8463edf4 100644
--- a/sys/arch/i386/stand/libsa/exec_i386.c
+++ b/sys/arch/i386/stand/libsa/exec_i386.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: exec_i386.c,v 1.52 2022/07/07 00:56:47 daniel Exp $	*/
+/*	$OpenBSD: exec_i386.c,v 1.53 2023/07/22 10:11:20 jsg Exp $	*/
 
 /*
  * Copyright (c) 1997-1998 Michael Shalayeff
@@ -190,7 +190,8 @@ ucode_load(void)
 
 	CPUID(0, dummy, vendor[0], vendor[2], vendor[1]);
 	vendor[3] = 0; /* NULL-terminate */
-	if (strcmp((char *)vendor, "GenuineIntel") != 0)
+	if (strcmp((char *)vendor, "GenuineIntel") != 0 &&
+	    strcmp((char *)vendor, "AuthenticAMD") != 0)
 		return;
 
 	CPUID(1, signature, dummy, dummy, dummy);
@@ -202,8 +203,22 @@ ucode_load(void)
 	}
 	stepping = (signature >> 0) & 0x0f;
 
-	snprintf(path, sizeof(path), "%s:/etc/firmware/intel/%02x-%02x-%02x",
-	    cmd.bootdev, family, model, stepping);
+	if (strcmp((char *)vendor, "GenuineIntel") == 0) {
+		snprintf(path, sizeof(path),
+		    "%s:/etc/firmware/intel/%02x-%02x-%02x",
+		    cmd.bootdev, family, model, stepping);
+	} else if (strcmp((char *)vendor, "AuthenticAMD") == 0) {
+		if (family < 0x10)
+			return;
+		else if (family <= 0x14)
+			snprintf(path, sizeof(path),
+			    "%s:/etc/firmware/amd/microcode_amd.bin",
+			    cmd.bootdev);
+		else
+			snprintf(path, sizeof(path),
+			    "%s:/etc/firmware/amd/microcode_amd_fam%02xh.bin",
+			    cmd.bootdev, family);
+	}
 
 	fd = open(path, O_RDONLY);
 	if (fd == -1)
diff --git a/sys/arch/i386/stand/pxeboot/conf.c b/sys/arch/i386/stand/pxeboot/conf.c
index f022641757b..4958b7e3441 100644
--- a/sys/arch/i386/stand/pxeboot/conf.c
+++ b/sys/arch/i386/stand/pxeboot/conf.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: conf.c,v 1.49 2023/04/25 14:48:17 kn Exp $	*/
+/*	$OpenBSD: conf.c,v 1.50 2023/07/22 10:11:20 jsg Exp $	*/
 
 /*
  * Copyright (c) 2004 Tom Cosgrove
@@ -45,7 +45,7 @@
 #include "pxeboot.h"
 #include "pxe_net.h"
 
-const char version[] = "3.45";
+const char version[] = "3.65";
 int	debug = 1;
 
 void (*sa_cleanup)(void) = pxe_shutdown;