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https://git.proxmox.com/git/fwupd
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dfaae2e837
There are now multiple plugins using drm_dp_aux_dev interface which may potentially be combined with an amdgpu. Prevent exercising this interface with any plugin using DP aux unless a new enough kernel is installed.
59 lines
1.5 KiB
C
59 lines
1.5 KiB
C
/*
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* Copyright (C) 2019 Richard Hughes <richard@hughsie.com>
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*
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* SPDX-License-Identifier: LGPL-2.1+
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*/
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#include "config.h"
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#include <fwupdplugin.h>
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struct FuPluginData {
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gboolean has_iommu;
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};
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void
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fu_plugin_init (FuPlugin *plugin)
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{
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fu_plugin_alloc_data (plugin, sizeof (FuPluginData));
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fu_plugin_set_build_hash (plugin, FU_BUILD_HASH);
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fu_plugin_add_udev_subsystem (plugin, "iommu");
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}
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gboolean
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fu_plugin_backend_device_added (FuPlugin *plugin, FuDevice *device, GError **error)
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{
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FuPluginData *priv = fu_plugin_get_data (plugin);
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/* interesting device? */
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if (!FU_IS_UDEV_DEVICE (device))
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return TRUE;
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if (g_strcmp0 (fu_udev_device_get_subsystem (FU_UDEV_DEVICE (device)), "iommu") != 0)
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return TRUE;
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priv->has_iommu = TRUE;
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return TRUE;
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}
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void
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fu_plugin_add_security_attrs (FuPlugin *plugin, FuSecurityAttrs *attrs)
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{
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FuPluginData *data = fu_plugin_get_data (plugin);
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g_autoptr(FwupdSecurityAttr) attr = NULL;
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/* create attr */
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attr = fwupd_security_attr_new (FWUPD_SECURITY_ATTR_ID_IOMMU);
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fwupd_security_attr_set_level (attr, FWUPD_SECURITY_ATTR_LEVEL_IMPORTANT);
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fwupd_security_attr_set_plugin (attr, fu_plugin_get_name (plugin));
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fu_security_attrs_append (attrs, attr);
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if (!data->has_iommu) {
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fwupd_security_attr_set_result (attr, FWUPD_SECURITY_ATTR_RESULT_NOT_FOUND);
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return;
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}
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/* success */
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fwupd_security_attr_add_flag (attr, FWUPD_SECURITY_ATTR_FLAG_SUCCESS);
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fwupd_security_attr_set_result (attr, FWUPD_SECURITY_ATTR_RESULT_ENABLED);
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}
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