SMBIOS support for EFI.

MFC after:	1 week

sys/boot/efi/loader/Makefile

@@ -20,9 +20,12 @@ SRCS=	autoload.c \
 	copy.c \
 	devicename.c \
 	main.c \
+	smbios.c \
 	vers.c
 
 .PATH: ${.CURDIR}/arch/${MACHINE_CPUARCH}
+# For smbios.c
+.PATH: ${.CURDIR}/../../i386/libi386
 .include "${.CURDIR}/arch/${MACHINE_CPUARCH}/Makefile.inc"
 
 CFLAGS+=	-fPIC
@@ -32,7 +35,8 @@ CFLAGS+=	-I${.CURDIR}/../include
 CFLAGS+=	-I${.CURDIR}/../include/${MACHINE_CPUARCH}
 CFLAGS+=	-I${.CURDIR}/../../../contrib/dev/acpica/include
 CFLAGS+=	-I${.CURDIR}/../../..
-CFLAGS+=	-DNO_PCI
+CFLAGS+=	-I${.CURDIR}/../../i386/libi386
+CFLAGS+=	-DNO_PCI -DEFI
 
 .if ${MK_FORTH} != "no"
 BOOT_FORTH=	yes

sys/boot/efi/loader/main.c

@@ -36,6 +36,8 @@ __FBSDID("$FreeBSD$");
 #include <efilib.h>
 
 #include <bootstrap.h>
+#include <smbios.h>
+
 #include "loader_efi.h"
 
 extern char bootprog_name[];
@@ -63,6 +65,7 @@ main(int argc, CHAR16 *argv[])
 {
 	char vendor[128];
 	EFI_LOADED_IMAGE *img;
+	EFI_GUID *guid;
 	int i;
 
 	/*
@@ -128,6 +131,14 @@ main(int argc, CHAR16 *argv[])
 	archsw.arch_copyout = efi_copyout;
 	archsw.arch_readin = efi_readin;
 
+	for (i = 0; i < ST->NumberOfTableEntries; i++) {
+		guid = &ST->ConfigurationTable[i].VendorGuid;
+		if (!memcmp(guid, &smbios, sizeof(EFI_GUID))) {
+			smbios_detect(ST->ConfigurationTable[i].VendorTable);
+			break;
+		}
+	}
+
 	interact(NULL);			/* doesn't return */
 
 	return (EFI_SUCCESS);		/* keep compiler happy */

sys/boot/i386/libi386/libi386.h

@@ -113,10 +113,6 @@ uint32_t biospci_locator(int8_t bus, uint8_t device, uint8_t function);
 
 void	biosacpi_detect(void);
 
-void	smbios_detect(void);
-int	smbios_match(const char* bios_vendor, const char* maker,
-	    const char* product);
-
 int	i386_autoload(void);
 
 int	bi_getboothowto(char *kargs);

sys/boot/i386/libi386/smbios.c

@@ -31,8 +31,13 @@ __FBSDID("$FreeBSD$");
 #include <bootstrap.h>
 #include <sys/endian.h>
 
+#ifdef EFI
+/* In EFI, we don't need PTOV(). */
+#define PTOV(x)		(caddr_t)(x)
+#else
 #include "btxv86.h"
-#include "libi386.h"
+#endif
+#include "smbios.h"
 
 /*
  * Detect SMBIOS and export information about the SMBIOS into the
@@ -347,17 +352,18 @@ smbios_find_struct(int type)
 }
 
 static void
-smbios_probe(void)
+smbios_probe(const caddr_t addr)
 {
 	caddr_t		saddr, info;
-	u_int32_t	paddr;
+	uintptr_t	paddr;
 
 	if (smbios.probed)
 		return;
 	smbios.probed = 1;
 
 	/* Search signatures and validate checksums. */
-	saddr = smbios_sigsearch(PTOV(SMBIOS_START), SMBIOS_LENGTH);
+	saddr = smbios_sigsearch(addr ? addr : PTOV(SMBIOS_START),
+	    SMBIOS_LENGTH);
 	if (saddr == NULL)
 		return;
 
@@ -392,13 +398,13 @@ smbios_probe(void)
 }
 
 void
-smbios_detect(void)
+smbios_detect(const caddr_t addr)
 {
 	char		buf[16];
 	caddr_t		dmi;
 	int		i;
 
-	smbios_probe();
+	smbios_probe(addr);
 	if (smbios.addr == NULL)
 		return;
 
@@ -433,7 +439,8 @@ int
 smbios_match(const char* bios_vendor, const char* maker,
     const char* product)
 {
-	smbios_probe();
+	/* XXXRP currently, only called from non-EFI. */
+	smbios_probe(NULL);
 	return (smbios_match_str(bios_vendor, smbios.bios_vendor) &&
 	    smbios_match_str(maker, smbios.maker) &&
 	    smbios_match_str(product, smbios.product));

sys/boot/i386/libi386/smbios.h

@@ -0,0 +1,34 @@
+/*-
+ * Copyright (c) 2015 Rui Paulo <rpaulo@FreeBSD.org>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ * $FreeBSD$
+ */
+#ifndef _SMBIOS_H_
+#define	_SMBIOS_H_
+
+void	smbios_detect(const caddr_t);
+int	smbios_match(const char *, const char *, const char *);
+
+#endif /* _SMBIOS_H_ */

sys/boot/i386/loader/main.c

@@ -43,6 +43,7 @@ __FBSDID("$FreeBSD$");
 #include "bootstrap.h"
 #include "common/bootargs.h"
 #include "libi386/libi386.h"
+#include "libi386/smbios.h"
 #include "btxv86.h"
 
 #ifdef LOADER_ZFS_SUPPORT
@@ -115,7 +116,7 @@ main(void)
     }
     setheap(heap_bottom, heap_top);
 
-    /* 
+    /*
      * XXX Chicken-and-egg problem; we want to have console output early, but some
      * console attributes may depend on reading from eg. the boot device, which we
      * can't do yet.
@@ -181,7 +182,7 @@ main(void)
     biosacpi_detect();
 
     /* detect SMBIOS for future reference */
-    smbios_detect();
+    smbios_detect(NULL);
 
     /* detect PCI BIOS for future reference */
     biospci_detect();