| // 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); |
| } |
