[PATCH v1 29/30] discover: Add platform-arm64
Geoff Levand
geoff at infradead.org
Wed Jul 25 08:15:46 AEST 2018
From: Ge Song <ge.song at hxt-semitech.com>
Signed-off-by: Ge Song <ge.song at hxt-semitech.com>
[Split from a larger patch and cleaned up]
Signed-off-by: Geoff Levand <geoff at infradead.org>
---
configure.ac | 12 +-
discover/Makefile.am | 4 +
discover/platform-arm64.c | 278 ++++++++++++++++++++++++++++++++++++++++++++++
3 files changed, 293 insertions(+), 1 deletion(-)
create mode 100644 discover/platform-arm64.c
diff --git a/configure.ac b/configure.ac
index c92ef1d..952c4af 100644
--- a/configure.ac
+++ b/configure.ac
@@ -313,7 +313,7 @@ AC_ARG_ENABLE(
)
AS_IF(
[test "x$enable_platform_all" = "xyes"],
- [enable_platform_powerpc="yes"; enable_platform_ps3="yes"]
+ [enable_platform_arm64="yes"; enable_platform_powerpc="yes"; enable_platform_ps3="yes"]
)
AC_ARG_ENABLE(
@@ -328,10 +328,20 @@ AC_ARG_ENABLE(
AS_IF(
[test "x$enable_platform_auto" = "xyes"],
[AS_CASE([$host],
+ [aarch64-*-*], [enable_platform_arm64="yes"],
[powerpc*-*-*], [enable_platform_powerpc="yes"],
)]
)
+AC_ARG_ENABLE(
+ [platform-arm64],
+ [AS_HELP_STRING(
+ [--enable-platform-arm64],
+ [build support for arm64 platforms [default=no]]
+ )]
+)
+AM_CONDITIONAL([PLATFORM_ARM64], [test "x$enable_platform_arm64" = "xyes"])
+
AC_ARG_ENABLE(
[platform-powerpc],
[AS_HELP_STRING(
diff --git a/discover/Makefile.am b/discover/Makefile.am
index 2b7c794..f5b799d 100644
--- a/discover/Makefile.am
+++ b/discover/Makefile.am
@@ -82,6 +82,10 @@ discover_platform_ro_SOURCES = \
discover/dt.h \
discover/hostboot.h
+if PLATFORM_ARM64
+discover_platform_ro_SOURCES += discover/platform-arm64.c
+endif
+
if PLATFORM_POWERPC
discover_platform_ro_SOURCES += discover/platform-powerpc.c
endif
diff --git a/discover/platform-arm64.c b/discover/platform-arm64.c
new file mode 100644
index 0000000..9cd6641
--- /dev/null
+++ b/discover/platform-arm64.c
@@ -0,0 +1,278 @@
+/*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ * Copyright (C) 2018 Huaxintong Semiconductor Technology Co.,Ltd. All rights
+ * reserved.
+ * Author: Ge Song <ge.song at hxt-semitech.com>
+ */
+
+#include <ctype.h>
+#include <errno.h>
+#include <limits.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/statfs.h>
+
+#include "efi/efivar.h"
+#include "file/file.h"
+#include "log/log.h"
+#include <process/process.h>
+#include <system/system.h>
+#include "talloc/talloc.h"
+#include "types/types.h"
+
+
+#include "ipmi.h"
+#include "platform.h"
+
+static const char *efi_vars_guid = "fb78ab4b-bd43-41a0-99a2-4e74bef9169b";
+
+struct platform_arm64 {
+ struct param_list params;
+ struct ipmi *ipmi;
+};
+
+static inline struct platform_arm64 *to_platform_arm64(struct platform *p)
+{
+ return (struct platform_arm64 *)(p->platform_data);
+}
+
+static void parse_nvram(struct param_list *pl)
+{
+ const char** known;
+
+ param_list_for_each_known_param(pl, known) {
+ struct efi_data *efi_data;
+
+ if (efi_get_variable(NULL, efi_vars_guid, *known, &efi_data))
+ continue;
+
+ param_list_set(pl, *known, efi_data->data,
+ true);
+
+ talloc_free(efi_data);
+ }
+}
+
+static void write_nvram(const struct param_list *pl)
+{
+ struct efi_data efi_data;
+ struct param *param;
+
+ efi_data.attributes =
+ EFI_VARIABLE_NON_VOLATILE |
+ EFI_VARIABLE_RUNTIME_ACCESS |
+ EFI_VARIABLE_BOOTSERVICE_ACCESS;
+
+ param_list_for_each(pl, param) {
+ if (!param->modified)
+ continue;
+
+ efi_data.data = param->value;
+ efi_data.data_size = strlen(param->value) + 1;
+ efi_set_variable(efi_vars_guid, param->name, &efi_data);
+ }
+}
+
+static void get_active_consoles(struct config *config)
+{
+ config->n_consoles = 0;
+ config->consoles = talloc_array(config, char *, 3);
+ if (!config->consoles)
+ return;
+
+ config->consoles[0] = talloc_asprintf(config,
+ "/dev/hvc0 [IPMI / Serial]");
+ config->consoles[1] = talloc_asprintf(config,
+ "/dev/ttyAMA0 [Serial]");
+ config->consoles[2] = talloc_asprintf(config,
+ "/dev/tty1 [VGA]");
+ config->n_consoles = 3;
+}
+
+static int load_config(struct platform *p, struct config *config)
+{
+ struct param_list *pl = &to_platform_arm64(p)->params;
+
+ parse_nvram(pl);
+ config_populate_all(config, pl);
+ get_active_consoles(config);
+
+ return 0;
+}
+
+static char *stdout_cleaner(struct process_stdout *out)
+{
+ char *p;
+ const char *const end = out->buf + out->len;
+
+ for (p = out->buf; *p && p < end; p++) {
+ if (*p == '\n' || *p == '\r') {
+ *p = 0;
+ } else if (!isprint(*p)) {
+ *p = '.';
+ } else if (*p == '\t') {
+ *p = ' ';
+ }
+ }
+ return out->buf;
+}
+
+static int get_sysinfo(struct platform *p, struct system_info *sysinfo)
+{
+ struct platform_arm64 *platform = to_platform_arm64(p);
+ struct process_stdout *out1, *out2;
+
+ /* Use dmidecode to get sysinfo type and identifier. */
+
+ process_get_stdout(NULL, &out1, pb_system_apps.dmidecode,
+ "--string=system-manufacturer",
+ NULL);
+ process_get_stdout(NULL, &out2, pb_system_apps.dmidecode,
+ "--string=system-product-name",
+ NULL);
+
+ if (out1 || out2)
+ sysinfo->type = talloc_asprintf(sysinfo, "%s %s",
+ out1 ? stdout_cleaner(out1) : "Unknown",
+ out2 ? stdout_cleaner(out2) : "Unknown");
+ talloc_free(out1);
+ talloc_free(out2);
+
+ process_get_stdout(NULL, &out1, pb_system_apps.dmidecode,
+ "--string=system-uuid",
+ NULL);
+
+ if (out1)
+ sysinfo->identifier = talloc_asprintf(sysinfo, "%s",
+ stdout_cleaner(out1));
+ talloc_free(out1);
+
+ sysinfo->bmc_mac = talloc_zero_size(sysinfo, HWADDR_SIZE);
+
+ if (platform->ipmi) {
+ ipmi_get_bmc_mac(platform->ipmi, sysinfo->bmc_mac);
+ ipmi_get_bmc_versions(platform->ipmi, sysinfo);
+ }
+
+ pb_debug_fn("type: '%s'\n", sysinfo->type);
+ pb_debug_fn("identifier: '%s'\n", sysinfo->identifier);
+ pb_debug_fn("bmc_mac: '%s'\n", sysinfo->bmc_mac);
+
+ return 0;
+}
+
+static void params_update_all(struct param_list *pl,
+ const struct config *config, const struct config *defaults)
+{
+ char *tmp = NULL;
+ const char *val;
+
+ if (config->autoboot_enabled == defaults->autoboot_enabled)
+ val = "";
+ else
+ val = config->autoboot_enabled ? "true" : "false";
+
+ param_list_set_non_empty(pl, "auto-boot?", val, true);
+
+ if (config->autoboot_timeout_sec == defaults->autoboot_timeout_sec)
+ val = "";
+ else
+ val = tmp = talloc_asprintf(pl, "%d",
+ config->autoboot_timeout_sec);
+
+ param_list_set_non_empty(pl, "petitboot,timeout", val, true);
+ if (tmp)
+ talloc_free(tmp);
+
+ val = config->lang ?: "";
+ param_list_set_non_empty(pl, "petitboot,language", val, true);
+
+ if (config->allow_writes == defaults->allow_writes)
+ val = "";
+ else
+ val = config->allow_writes ? "true" : "false";
+ param_list_set_non_empty(pl, "petitboot,write?", val, true);
+
+ if (!config->manual_console) {
+ val = config->boot_console ?: "";
+ param_list_set_non_empty(pl, "petitboot,console", val, true);
+ }
+
+ val = config->http_proxy ?: "";
+ param_list_set_non_empty(pl, "petitboot,http_proxy", val, true);
+ val = config->https_proxy ?: "";
+ param_list_set_non_empty(pl, "petitboot,https_proxy", val, true);
+
+ params_update_network_values(pl, "petitboot,network", config);
+ params_update_bootdev_values(pl, "petitboot,bootdevs", config);
+}
+
+static int save_config(struct platform *p, struct config *config)
+{
+ struct param_list *pl = &to_platform_arm64(p)->params;
+ struct config *defaults;
+
+ defaults = talloc_zero(NULL, struct config);
+ config_set_defaults(defaults);
+
+ params_update_all(pl, config, defaults);
+ talloc_free(defaults);
+
+ write_nvram(pl);
+
+ return 0;
+}
+
+static bool probe(struct platform *p, void *ctx)
+{
+ static const char *efivars = "/sys/firmware/efi/efivars";
+ struct platform_arm64 *platform;
+ struct statfs buf;
+
+ if (access(efivars, R_OK | W_OK)) {
+ pb_debug_fn("Can't access %s\n", efivars);
+ return false;
+ }
+
+ memset(&buf, '\0', sizeof(buf));
+ if (statfs(efivars, &buf)) {
+ pb_debug_fn("statfs failed: %s: %s\n", efivars,
+ strerror(errno));
+ return false;
+ }
+
+ if (buf.f_type != EFIVARFS_MAGIC) {
+ pb_debug_fn("Bad magic = 0x%lx\n", (unsigned long)buf.f_type);
+ return false;
+ }
+
+ platform = talloc_zero(ctx, struct platform_arm64);
+ param_list_init(&platform->params, common_known_params());
+
+ p->platform_data = platform;
+
+ return true;
+}
+
+static struct platform platform_arm64 = {
+ .name = "arm64",
+ .dhcp_arch_id = 0x000d,
+ .probe = probe,
+ .load_config = load_config,
+ .save_config = save_config,
+ .get_sysinfo = get_sysinfo,
+};
+
+register_platform(platform_arm64);
--
2.14.1
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