Module Name: src
Committed By: skrll
Date: Fri Jan 19 09:09:04 UTC 2024
Modified Files:
src/sys/arch/evbarm/fdt: fdt_machdep.c
src/sys/dev/fdt: fdt_boot.c fdt_boot.h
Log Message:
Make fdt_cpu_rootconf available for other machines/platforms.
To generate a diff of this commit:
cvs rdiff -u -r1.106 -r1.107 src/sys/arch/evbarm/fdt/fdt_machdep.c
cvs rdiff -u -r1.4 -r1.5 src/sys/dev/fdt/fdt_boot.c
cvs rdiff -u -r1.3 -r1.4 src/sys/dev/fdt/fdt_boot.h
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/sys/arch/evbarm/fdt/fdt_machdep.c
diff -u src/sys/arch/evbarm/fdt/fdt_machdep.c:1.106 src/sys/arch/evbarm/fdt/fdt_machdep.c:1.107
--- src/sys/arch/evbarm/fdt/fdt_machdep.c:1.106 Fri Aug 4 09:06:33 2023
+++ src/sys/arch/evbarm/fdt/fdt_machdep.c Fri Jan 19 09:09:04 2024
@@ -1,4 +1,4 @@
-/* $NetBSD: fdt_machdep.c,v 1.106 2023/08/04 09:06:33 mrg Exp $ */
+/* $NetBSD: fdt_machdep.c,v 1.107 2024/01/19 09:09:04 skrll Exp $ */
/*-
* Copyright (c) 2015-2017 Jared McNeill <jmcne...@invisible.ca>
@@ -27,7 +27,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: fdt_machdep.c,v 1.106 2023/08/04 09:06:33 mrg Exp $");
+__KERNEL_RCSID(0, "$NetBSD: fdt_machdep.c,v 1.107 2024/01/19 09:09:04 skrll Exp $");
#include "opt_arm_debug.h"
#include "opt_bootconfig.h"
@@ -127,7 +127,6 @@ extern char KERNEL_BASE_phys[];
static void fdt_device_register(device_t, void *);
static void fdt_device_register_post_config(device_t, void *);
-static void fdt_cpu_rootconf(void);
static void fdt_reset(void);
static void fdt_powerdown(void);
@@ -467,115 +466,6 @@ delay(u_int us)
plat->fp_delay(us);
}
-
-static void
-fdt_detect_root_device(device_t dev)
-{
- int error, len;
-
- const int chosen = OF_finddevice("/chosen");
- if (chosen < 0)
- return;
-
- if (of_hasprop(chosen, "netbsd,mbr") &&
- of_hasprop(chosen, "netbsd,partition")) {
- struct mbr_sector mbr;
- uint8_t buf[DEV_BSIZE];
- uint8_t hash[16];
- const uint8_t *rhash;
- struct vnode *vp;
- MD5_CTX md5ctx;
- size_t resid;
- u_int part;
-
- /*
- * The bootloader has passed in a partition index and MD5 hash
- * of the MBR sector. Read the MBR of this device, calculate the
- * hash, and compare it with the value passed in.
- */
- rhash = fdtbus_get_prop(chosen, "netbsd,mbr", &len);
- if (rhash == NULL || len != 16)
- return;
- of_getprop_uint32(chosen, "netbsd,partition", &part);
- if (part >= MAXPARTITIONS)
- return;
-
- vp = opendisk(dev);
- if (!vp)
- return;
- error = vn_rdwr(UIO_READ, vp, buf, sizeof(buf), 0, UIO_SYSSPACE,
- IO_NODELOCKED, NOCRED, &resid, NULL);
- VOP_CLOSE(vp, FREAD, NOCRED);
- vput(vp);
-
- if (error != 0)
- return;
-
- memcpy(&mbr, buf, sizeof(mbr));
- MD5Init(&md5ctx);
- MD5Update(&md5ctx, (void *)&mbr, sizeof(mbr));
- MD5Final(hash, &md5ctx);
-
- if (memcmp(rhash, hash, 16) == 0) {
- booted_device = dev;
- booted_partition = part;
- }
-
- return;
- }
-
- if (of_hasprop(chosen, "netbsd,gpt-guid")) {
- const struct uuid *guid =
- fdtbus_get_prop(chosen, "netbsd,gpt-guid", &len);
-
- if (guid == NULL || len != 16)
- return;
-
- char guidstr[UUID_STR_LEN];
- uuid_snprintf(guidstr, sizeof(guidstr), guid);
-
- device_t dv = dkwedge_find_by_wname(guidstr);
- if (dv != NULL)
- booted_device = dv;
-
- return;
- }
-
- if (of_hasprop(chosen, "netbsd,gpt-label")) {
- const char *label = fdtbus_get_string(chosen, "netbsd,gpt-label");
- if (label == NULL || *label == '\0')
- return;
-
- device_t dv = dkwedge_find_by_wname(label);
- if (dv != NULL)
- booted_device = dv;
-
- return;
- }
-
- if (of_hasprop(chosen, "netbsd,booted-mac-address")) {
- const uint8_t *macaddr =
- fdtbus_get_prop(chosen, "netbsd,booted-mac-address", &len);
- struct ifnet *ifp;
-
- if (macaddr == NULL || len != 6)
- return;
-
- int s = pserialize_read_enter();
- IFNET_READER_FOREACH(ifp) {
- if (memcmp(macaddr, CLLADDR(ifp->if_sadl), len) == 0) {
- device_t dv = device_find_by_xname(ifp->if_xname);
- if (dv != NULL)
- booted_device = dv;
- break;
- }
- }
- pserialize_read_exit(s);
-
- return;
- }
-}
-
static void
fdt_device_register(device_t self, void *aux)
{
@@ -617,27 +507,6 @@ fdt_device_register_post_config(device_t
}
static void
-fdt_cpu_rootconf(void)
-{
- device_t dev;
- deviter_t di;
-
- if (booted_device != NULL)
- return;
-
- for (dev = deviter_first(&di, 0); dev; dev = deviter_next(&di)) {
- if (device_class(dev) != DV_DISK)
- continue;
-
- fdt_detect_root_device(dev);
-
- if (booted_device != NULL)
- break;
- }
- deviter_release(&di);
-}
-
-static void
fdt_reset(void)
{
const struct fdt_platform *plat = fdt_platform_find();
Index: src/sys/dev/fdt/fdt_boot.c
diff -u src/sys/dev/fdt/fdt_boot.c:1.4 src/sys/dev/fdt/fdt_boot.c:1.5
--- src/sys/dev/fdt/fdt_boot.c:1.4 Tue Jul 11 05:57:44 2023
+++ src/sys/dev/fdt/fdt_boot.c Fri Jan 19 09:09:04 2024
@@ -1,4 +1,4 @@
-/* $NetBSD: fdt_boot.c,v 1.4 2023/07/11 05:57:44 skrll Exp $ */
+/* $NetBSD: fdt_boot.c,v 1.5 2024/01/19 09:09:04 skrll Exp $ */
/*-
* Copyright (c) 2015-2017 Jared McNeill <jmcne...@invisible.ca>
@@ -56,7 +56,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: fdt_boot.c,v 1.4 2023/07/11 05:57:44 skrll Exp $");
+__KERNEL_RCSID(0, "$NetBSD: fdt_boot.c,v 1.5 2024/01/19 09:09:04 skrll Exp $");
#include "opt_efi.h"
#include "opt_md.h"
@@ -393,3 +393,132 @@ fdt_update_stdout_path(void *fdt, const
fdt_setprop(fdt, chosen_off, "stdout-path",
buf, stdout_path_len + 1);
}
+
+static void
+fdt_detect_root_device(device_t dev)
+{
+ int error, len;
+
+ const int chosen = OF_finddevice("/chosen");
+ if (chosen < 0)
+ return;
+
+ if (of_hasprop(chosen, "netbsd,mbr") &&
+ of_hasprop(chosen, "netbsd,partition")) {
+ struct mbr_sector mbr;
+ uint8_t buf[DEV_BSIZE];
+ uint8_t hash[16];
+ const uint8_t *rhash;
+ struct vnode *vp;
+ MD5_CTX md5ctx;
+ size_t resid;
+ u_int part;
+
+ /*
+ * The bootloader has passed in a partition index and MD5 hash
+ * of the MBR sector. Read the MBR of this device, calculate the
+ * hash, and compare it with the value passed in.
+ */
+ rhash = fdtbus_get_prop(chosen, "netbsd,mbr", &len);
+ if (rhash == NULL || len != 16)
+ return;
+ of_getprop_uint32(chosen, "netbsd,partition", &part);
+ if (part >= MAXPARTITIONS)
+ return;
+
+ vp = opendisk(dev);
+ if (!vp)
+ return;
+ error = vn_rdwr(UIO_READ, vp, buf, sizeof(buf), 0, UIO_SYSSPACE,
+ IO_NODELOCKED, NOCRED, &resid, NULL);
+ VOP_CLOSE(vp, FREAD, NOCRED);
+ vput(vp);
+
+ if (error != 0)
+ return;
+
+ memcpy(&mbr, buf, sizeof(mbr));
+ MD5Init(&md5ctx);
+ MD5Update(&md5ctx, (void *)&mbr, sizeof(mbr));
+ MD5Final(hash, &md5ctx);
+
+ if (memcmp(rhash, hash, 16) == 0) {
+ booted_device = dev;
+ booted_partition = part;
+ }
+
+ return;
+ }
+
+ if (of_hasprop(chosen, "netbsd,gpt-guid")) {
+ const struct uuid *guid =
+ fdtbus_get_prop(chosen, "netbsd,gpt-guid", &len);
+
+ if (guid == NULL || len != 16)
+ return;
+
+ char guidstr[UUID_STR_LEN];
+ uuid_snprintf(guidstr, sizeof(guidstr), guid);
+
+ device_t dv = dkwedge_find_by_wname(guidstr);
+ if (dv != NULL)
+ booted_device = dv;
+
+ return;
+ }
+
+ if (of_hasprop(chosen, "netbsd,gpt-label")) {
+ const char *label = fdtbus_get_string(chosen, "netbsd,gpt-label");
+ if (label == NULL || *label == '\0')
+ return;
+
+ device_t dv = dkwedge_find_by_wname(label);
+ if (dv != NULL)
+ booted_device = dv;
+
+ return;
+ }
+
+ if (of_hasprop(chosen, "netbsd,booted-mac-address")) {
+ const uint8_t *macaddr =
+ fdtbus_get_prop(chosen, "netbsd,booted-mac-address", &len);
+ struct ifnet *ifp;
+
+ if (macaddr == NULL || len != 6)
+ return;
+
+ int s = pserialize_read_enter();
+ IFNET_READER_FOREACH(ifp) {
+ if (memcmp(macaddr, CLLADDR(ifp->if_sadl), len) == 0) {
+ device_t dv = device_find_by_xname(ifp->if_xname);
+ if (dv != NULL)
+ booted_device = dv;
+ break;
+ }
+ }
+ pserialize_read_exit(s);
+
+ return;
+ }
+}
+
+void
+fdt_cpu_rootconf(void)
+{
+ device_t dev;
+ deviter_t di;
+
+ if (booted_device != NULL)
+ return;
+
+ for (dev = deviter_first(&di, 0); dev; dev = deviter_next(&di)) {
+ if (device_class(dev) != DV_DISK)
+ continue;
+
+ fdt_detect_root_device(dev);
+
+ if (booted_device != NULL)
+ break;
+ }
+ deviter_release(&di);
+}
Index: src/sys/dev/fdt/fdt_boot.h
diff -u src/sys/dev/fdt/fdt_boot.h:1.3 src/sys/dev/fdt/fdt_boot.h:1.4
--- src/sys/dev/fdt/fdt_boot.h:1.3 Mon Jul 10 07:01:48 2023
+++ src/sys/dev/fdt/fdt_boot.h Fri Jan 19 09:09:04 2024
@@ -1,4 +1,4 @@
-/* $NetBSD: fdt_boot.h,v 1.3 2023/07/10 07:01:48 rin Exp $ */
+/* $NetBSD: fdt_boot.h,v 1.4 2024/01/19 09:09:04 skrll Exp $ */
/*-
* Copyright (c) 2018 The NetBSD Foundation, Inc.
@@ -49,6 +49,7 @@ void fdt_reserve_rndseed(void);
void fdt_probe_efirng(void);
void fdt_setup_efirng(void);
void fdt_reserve_efirng(void);
+void fdt_cpu_rootconf(void);
void fdt_update_stdout_path(void *, const char *);
