fwupd/plugins/bios/fu-plugin-bios.c
Richard Hughes 0d37a9a93a bios: Only warn about CSM when using i?86 or x86_64
We're telling people on PPC64 to switch to UEFI mode...
2020-09-18 13:57:36 +01:00

101 lines
2.7 KiB
C

/*
* Copyright (C) 2020 Mario Limonciello <mario.limonciello@dell.com>
*
* SPDX-License-Identifier: LGPL-2.1+
*/
#include "config.h"
#include "fu-efivar.h"
#include "fu-plugin-vfuncs.h"
#include "fu-hash.h"
void
fu_plugin_init (FuPlugin *plugin)
{
fu_plugin_set_build_hash (plugin, FU_BUILD_HASH);
}
gboolean
fu_plugin_startup (FuPlugin *plugin, GError **error)
{
const gchar *vendor;
vendor = fu_plugin_get_dmi_value (plugin, FU_HWIDS_KEY_BIOS_VENDOR);
if (g_strcmp0 (vendor, "coreboot") == 0) {
g_set_error (error,
FWUPD_ERROR,
FWUPD_ERROR_NOT_FOUND,
"system uses coreboot");
return FALSE;
}
return TRUE;
}
static gboolean
fu_plugin_bios_create_dummy (FuPlugin *plugin, const gchar *reason, GError **error)
{
const gchar *key;
g_autoptr(FuDevice) dev = fu_device_new ();
fu_device_set_version_format (dev, FWUPD_VERSION_FORMAT_PLAIN);
key = fu_plugin_get_dmi_value (plugin, FU_HWIDS_KEY_MANUFACTURER);
if (key != NULL)
fu_device_set_vendor (dev, key);
key = fu_plugin_get_dmi_value (plugin, FU_HWIDS_KEY_BIOS_VENDOR);
if (key != NULL) {
g_autofree gchar *vendor_id = g_strdup_printf ("DMI:%s", key);
fu_device_set_vendor_id (FU_DEVICE (dev), vendor_id);
}
key = "System Firmware";
fu_device_set_name (dev, key);
key = fu_plugin_get_dmi_value (plugin, FU_HWIDS_KEY_BIOS_VERSION);
if (key != NULL)
fu_device_set_version (dev, key);
fu_device_set_update_error (dev, reason);
fu_device_add_flag (dev, FWUPD_DEVICE_FLAG_INTERNAL);
fu_device_add_icon (dev, "computer");
fu_device_set_id (dev, "BIOS-dummy");
fu_device_add_instance_id (dev, "main-system-firmware");
if (!fu_device_setup (dev, error))
return FALSE;
fu_plugin_device_add (plugin, dev);
return TRUE;
}
gboolean
fu_plugin_coldplug (FuPlugin *plugin, GError **error)
{
g_autofree gchar *sysfsfwdir = NULL;
g_autofree gchar *esrt_path = NULL;
/* are the EFI dirs set up so we can update each device */
#if defined(__x86_64__) || defined(__i386__)
g_autoptr(GError) error_local = NULL;
if (!fu_efivar_supported (&error_local)) {
const gchar *reason = "Firmware can not be updated in legacy BIOS mode, switch to UEFI mode";
g_warning ("%s", error_local->message);
return fu_plugin_bios_create_dummy (plugin, reason, error);
}
#endif
/* get the directory of ESRT entries */
sysfsfwdir = fu_common_get_path (FU_PATH_KIND_SYSFSDIR_FW);
esrt_path = g_build_filename (sysfsfwdir, "efi", "esrt", NULL);
if (!g_file_test (esrt_path, G_FILE_TEST_IS_DIR)) {
const gchar *reason = "UEFI Capsule updates not available or enabled";
return fu_plugin_bios_create_dummy (plugin, reason, error);
}
/* we appear to have UEFI capsule updates */
fu_plugin_set_enabled (plugin, FALSE);
return TRUE;
}