| // SPDX-License-Identifier: MIT | |
| /* Copyright © 2025 Intel Corporation */ | |
| #include <linux/device.h> | |
| #include <drm/drm_device.h> | |
| #ifdef CONFIG_X86 | |
| #include <asm/hypervisor.h> | |
| #endif | |
| #include "intel_display_core.h" | |
| #include "intel_display_utils.h" | |
| bool intel_display_run_as_guest(struct intel_display *display) | |
| { | |
| #if IS_ENABLED(CONFIG_X86) | |
| return !hypervisor_is_type(X86_HYPER_NATIVE); | |
| #else | |
| /* Not supported yet */ | |
| return false; | |
| #endif | |
| } | |
| bool intel_display_vtd_active(struct intel_display *display) | |
| { | |
| if (device_iommu_mapped(display->drm->dev)) | |
| return true; | |
| /* Running as a guest, we assume the host is enforcing VT'd */ | |
| return intel_display_run_as_guest(display); | |
| } |