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3e977ac617
linux_dsm_epyc7002/drivers/gpu/drm/i915
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Chris Wilson 3e977ac617 drm/i915: Prevent writing into a read-only object via a GGTT mmap 
If the user has created a read-only object, they should not be allowed
to circumvent the write protection by using a GGTT mmapping. Deny it.

Also most machines do not support read-only GGTT PTEs, so again we have
to reject attempted writes. Fortunately, this is known a priori, so we
can at least reject in the call to create the mmap (with a sanity check
in the fault handler).

v2: Check the vma->vm_flags during mmap() to allow readonly access.
v3: Remove VM_MAYWRITE to curtail mprotect()

Testcase: igt/gem_userptr_blits/readonly_mmap*
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Jon Bloomfield <jon.bloomfield@intel.com>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: Matthew Auld <matthew.william.auld@gmail.com>
Cc: David Herrmann <dh.herrmann@gmail.com>
Reviewed-by: Matthew Auld <matthew.william.auld@gmail.com> #v1
Reviewed-by: Jon Bloomfield <jon.bloomfield@intel.com>
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180712185315.3288-4-chris@chris-wilson.co.uk
2018-07-13 16:14:04 +01:00
..
gvt Merge tag 'gvt-next-2018-07-11' of https://github.com/intel/gvt-linux into drm-intel-next-queued 2018-07-12 00:23:44 -07:00
selftests drm/i915: Prevent writing into a read-only object via a GGTT mmap 2018-07-13 16:14:04 +01:00
dvo_ch7xxx.c drm/i915/dvo: switch to kernel unsigned int types 2018-06-18 14:45:58 +03:00
dvo_ch7017.c drm/i915/dvo: switch to kernel unsigned int types 2018-06-18 14:45:58 +03:00
dvo_ivch.c drm/i915/dvo: switch to kernel unsigned int types 2018-06-18 14:45:58 +03:00
dvo_ns2501.c drm/i915/dvo: switch to kernel unsigned int types 2018-06-18 14:45:58 +03:00
dvo_sil164.c drm/i915/dvo: switch to kernel unsigned int types 2018-06-18 14:45:58 +03:00
dvo_tfp410.c drm/i915/dvo: switch to kernel unsigned int types 2018-06-18 14:45:58 +03:00
dvo.h
i915_cmd_parser.c drm/i915/cmdparser: Do not check past the cmd length. 2018-02-06 11:41:40 -08:00
i915_debugfs.c drm/i915/psr: Split sink status into a separate debugfs node 2018-07-12 19:31:32 -07:00
i915_drv.c drm/i915: Unwind HW init after GVT setup failure 2018-07-10 16:46:09 +01:00
i915_drv.h drm/i915/glk: Add Quirk for GLK NUC HDMI port issues. 2018-07-13 13:42:23 +03:00
i915_gem_batch_pool.c drm/i915: Change parameters order in i915_gem_batch_pool_init 2018-03-09 22:21:41 +00:00
i915_gem_batch_pool.h drm/i915: Change parameters order in i915_gem_batch_pool_init 2018-03-09 22:21:41 +00:00
i915_gem_clflush.c drm: move read_domains and write_domain into i915 2018-02-16 14:12:48 +00:00
i915_gem_clflush.h
i915_gem_context.c drm/i915: Record logical context support in driver caps 2018-07-06 14:05:23 +01:00
i915_gem_context.h drm/i915: Forward declare struct intel_context 2018-05-25 08:21:19 +01:00
i915_gem_dmabuf.c drm: move read_domains and write_domain into i915 2018-02-16 14:12:48 +00:00
i915_gem_evict.c drm/i915: Provide a timeout to i915_gem_wait_for_idle() 2018-07-09 13:55:41 +01:00
i915_gem_execbuffer.c drm/i915: Move i915_vma_move_to_active() to i915_vma.c 2018-07-06 18:22:41 +01:00
i915_gem_fence_reg.c drm/i915: Use INTEL_GEN everywhere 2018-02-09 22:29:02 +00:00
i915_gem_fence_reg.h
i915_gem_gtt.c drm/i915: Prevent writing into a read-only object via a GGTT mmap 2018-07-13 16:14:04 +01:00
i915_gem_gtt.h drm/i915/gtt: Read-only pages for insert_entries on bdw+ 2018-07-13 16:12:03 +01:00
i915_gem_internal.c drm: move read_domains and write_domain into i915 2018-02-16 14:12:48 +00:00
i915_gem_object.c
i915_gem_object.h drm/i915: Prevent writing into a read-only object via a GGTT mmap 2018-07-13 16:14:04 +01:00
i915_gem_render_state.c drm/i915: Start returning an error from i915_vma_move_to_active() 2018-07-06 18:22:37 +01:00
i915_gem_render_state.h drm/i915: Rename drm_i915_gem_request to i915_request 2018-02-21 20:57:22 +00:00
i915_gem_shrinker.c drm/i915: Introduce i915_address_space.mutex 2018-07-11 13:56:16 +01:00
i915_gem_stolen.c drm/i915: use the ICL stolen memory 2018-07-10 16:29:56 -07:00
i915_gem_tiling.c drm/i915: Refactor common list iteration over GGTT vma 2017-12-07 23:26:55 +00:00
i915_gem_userptr.c drm/i915/userptr: reject zero user_size 2018-05-08 12:24:39 +01:00
i915_gem.c drm/i915: Prevent writing into a read-only object via a GGTT mmap 2018-07-13 16:14:04 +01:00
i915_gem.h drm/i915/execlists: Direct submission of new requests (avoid tasklet/ksoftirqd) 2018-06-28 22:55:10 +01:00
i915_gemfs.c drm/i915: Disable THP until we have a GPU read BW W/A 2017-11-30 10:11:49 +02:00
i915_gemfs.h
i915_gpu_error.c drm/i915: Track vma activity per fence.context, not per engine 2018-07-06 18:22:43 +01:00
i915_gpu_error.h drm/i915: Track vma activity per fence.context, not per engine 2018-07-06 18:22:43 +01:00
i915_ioc32.c drm/i915: Clean up ancient doc comments for i915_ioc32.c 2018-02-15 16:22:21 +00:00
i915_irq.c drm/i915: Remove support for legacy debugfs crc interface 2018-07-06 14:33:35 +02:00
i915_memcpy.c drm/i915: Do not enable movntdqa optimization in hypervisor guest 2017-12-22 11:12:15 +00:00
i915_mm.c
i915_oa_bdw.c drm/i915: ensure oa config uuid is null terminated 2017-11-02 14:52:58 +00:00
i915_oa_bdw.h
i915_oa_bxt.c drm/i915: ensure oa config uuid is null terminated 2017-11-02 14:52:58 +00:00
i915_oa_bxt.h
i915_oa_cflgt2.c drm/i915: ensure oa config uuid is null terminated 2017-11-02 14:52:58 +00:00
i915_oa_cflgt2.h
i915_oa_cflgt3.c drm/i915/perf: Fix compiler warning for string truncation 2018-02-12 23:34:50 -08:00
i915_oa_cflgt3.h drm/i915/perf: add support for Coffeelake GT3 2017-11-13 15:59:03 +00:00
i915_oa_chv.c drm/i915: ensure oa config uuid is null terminated 2017-11-02 14:52:58 +00:00
i915_oa_chv.h
i915_oa_cnl.c drm/i915/perf: Fix compiler warning for string truncation 2018-02-12 23:34:55 -08:00
i915_oa_cnl.h drm/i915/perf: enable perf support on CNL 2017-11-13 15:59:24 +00:00
i915_oa_glk.c drm/i915: ensure oa config uuid is null terminated 2017-11-02 14:52:58 +00:00
i915_oa_glk.h
i915_oa_hsw.c drm/i915: ensure oa config uuid is null terminated 2017-11-02 14:52:58 +00:00
i915_oa_hsw.h
i915_oa_icl.c drm/i915/perf: enable perf support on ICL 2018-03-29 13:25:30 +01:00
i915_oa_icl.h drm/i915/perf: enable perf support on ICL 2018-03-29 13:25:30 +01:00
i915_oa_kblgt2.c drm/i915: ensure oa config uuid is null terminated 2017-11-02 14:52:58 +00:00
i915_oa_kblgt2.h
i915_oa_kblgt3.c drm/i915: ensure oa config uuid is null terminated 2017-11-02 14:52:58 +00:00
i915_oa_kblgt3.h
i915_oa_sklgt2.c drm/i915: ensure oa config uuid is null terminated 2017-11-02 14:52:58 +00:00
i915_oa_sklgt2.h
i915_oa_sklgt3.c drm/i915: ensure oa config uuid is null terminated 2017-11-02 14:52:58 +00:00
i915_oa_sklgt3.h
i915_oa_sklgt4.c drm/i915: ensure oa config uuid is null terminated 2017-11-02 14:52:58 +00:00
i915_oa_sklgt4.h
i915_params.c drm/i915/psr: Remove few mod parameters option. 2018-07-12 23:33:38 -07:00
i915_params.h drm/i915: Remove unused enable_cmd_parser modparam 2018-05-17 20:52:39 +01:00
i915_pci.c drm/i915/aml: Introducing Amber Lake platform 2018-06-18 10:49:57 -07:00
i915_perf.c drm/i915: Provide a timeout to i915_gem_wait_for_idle() 2018-07-09 13:55:41 +01:00
i915_pmu.c drm/i915/pmu: Do not assume fixed hrtimer period 2018-06-05 16:45:01 +01:00
i915_pmu.h drm/i915/pmu: Do not assume fixed hrtimer period 2018-06-05 16:45:01 +01:00
i915_pvinfo.h - Ice Lake's display enabling patches (Jose, Mahesh, Dhinakaran, Paulo, Manasi, Anusha, Arkadiusz) 2018-06-07 10:24:50 +08:00
i915_query.c drm/i915/query: nospec expects no more than an unsigned long 2018-05-22 16:55:57 +01:00
i915_query.h drm/i915: add query uAPI 2018-03-08 10:07:18 +00:00
i915_reg.h drm/i915/gmbus: Enable burst read 2018-07-12 17:31:28 +02:00
i915_request.c drm/i915: Provide a timeout to i915_gem_wait_for_idle() 2018-07-09 13:55:41 +01:00
i915_request.h drm/i915: Track vma activity per fence.context, not per engine 2018-07-06 18:22:43 +01:00
i915_scheduler.h drm/i915: Pack params to engine->schedule() into a struct 2018-04-18 21:09:11 +01:00
i915_selftest.h drm/i915/selftests: Reduce the volume of the timeout message 2017-11-10 11:31:58 +00:00
i915_suspend.c
i915_sw_fence.c drm/i915/fence: Separate timeout mechanism for awaiting on dma-fences 2018-01-15 10:29:18 +00:00
i915_sw_fence.h
i915_syncmap.c drm/i915: Fix kerneldoc parameter markup 2018-02-08 15:08:51 +00:00
i915_syncmap.h
i915_sysfs.c drm/i915: Kick the rps worker when changing the boost frequency 2018-03-12 11:24:49 -07:00
i915_timeline.c drm/i915: Split i915_gem_timeline into individual timelines 2018-05-02 23:57:18 +01:00
i915_timeline.h drm/i915: Replace nested subclassing with explicit subclasses 2018-07-07 08:09:43 +01:00
i915_trace_points.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
i915_trace.h drm/i915/ringbuffer: Fix context restore upon reset 2018-06-11 14:03:47 +01:00
i915_utils.h drm/i915: Retire requests along rings 2018-04-30 16:01:18 +01:00
i915_vgpu.c drm/i915/gtt: Rename i915_hw_ppgtt base member 2018-06-05 21:11:20 +01:00
i915_vgpu.h drm/i915: Add new vGPU cap info bit VGT_CAPS_HUGE_GTT 2018-06-05 16:57:01 +03:00
i915_vma.c drm/i915: Track the last-active inside the i915_vma 2018-07-06 18:23:07 +01:00
i915_vma.h drm/i915: Track the last-active inside the i915_vma 2018-07-06 18:23:07 +01:00
icl_dsi.c drm/i915/icl: Power down unused DSI lanes 2018-07-06 12:14:16 +03:00
intel_acpi.c drm/i915/dsm: remove unnecessary dsm priv structure 2018-06-14 15:59:09 +03:00
intel_atomic_plane.c drm/i915: Print prop name/id when rejecting it 2018-06-19 17:18:24 +03:00
intel_atomic.c drm/i915: Print prop name/id when rejecting it 2018-06-19 17:18:24 +03:00
intel_audio.c drm/i915/audio: constify ELD pointers 2018-06-19 17:41:44 +03:00
intel_bios.c drm/i915/psr: fix copy-paste error with setting of tp2_wakeup_time_us 2018-06-20 12:00:31 -07:00
intel_bios.h
intel_breadcrumbs.c drm/i915: Move the irq_counter inside the spinlock 2018-06-28 20:56:35 +01:00
intel_cdclk.c drm/i915: Mark expected switch fall-throughs 2018-07-05 16:40:51 +03:00
intel_color.c Merge airlied/drm-next into drm-misc-next 2018-03-21 09:40:55 -04:00
intel_crt.c drm/i915: Enforce max hdisplay/hblank_start limits on HSW/BDW FDI 2018-06-19 17:18:24 +03:00
intel_csr.c drm/i915: add support for specifying DMC firmware override by module param 2018-05-02 13:05:01 +03:00
intel_ddi.c drm/i915/glk: Add Quirk for GLK NUC HDMI port issues. 2018-07-13 13:42:23 +03:00
intel_device_info.c drm/i915: Record logical context support in driver caps 2018-07-06 14:05:23 +01:00
intel_device_info.h drm/i915: Record logical context support in driver caps 2018-07-06 14:05:23 +01:00
intel_display.c drm/i915/glk: Add Quirk for GLK NUC HDMI port issues. 2018-07-13 13:42:23 +03:00
intel_display.h drm/i915/icl: Add power well support 2018-06-27 16:01:19 +03:00
intel_dp_aux_backlight.c drm/i915/backlight: switch to kernel unsigned int types 2018-06-18 14:46:04 +03:00
intel_dp_link_training.c drm/i915/dp: Add support for HBR3 and TPS4 during link training 2018-06-14 14:58:22 -07:00
intel_dp_mst.c drm/i915: Replace drm_connector_{un/reference} with put,get functions 2018-06-28 19:09:21 +02:00
intel_dp.c drm/i915/psr: Remove useless function calls. 2018-07-12 23:33:26 -07:00
intel_dpio_phy.c drm/i915/gen9_lp: Increase DDI PHY0 power well enabling timeout 2018-04-10 13:12:22 +03:00
intel_dpll_mgr.c drm/i915: Mark expected switch fall-throughs 2018-07-05 16:40:51 +03:00
intel_dpll_mgr.h drm/i915/icl: Fix MG PLL setup when refclk is 38.4MHz 2018-06-21 19:01:40 +03:00
intel_drv.h drm/i915/glk: Add Quirk for GLK NUC HDMI port issues. 2018-07-13 13:42:23 +03:00
intel_dsi_dcs_backlight.c
intel_dsi_vbt.c drm/i915/dsi: use vlv and bxt prefixes for the global DSI functions 2018-07-06 10:54:05 +03:00
intel_dsi.h drm/i915/dsi: use vlv and bxt prefixes for the global DSI functions 2018-07-06 10:54:05 +03:00
intel_dvo.c drm/i915/dvo: switch to kernel unsigned int types 2018-06-18 14:45:58 +03:00
intel_engine_cs.c drm/i915/execlists: Switch to rb_root_cached 2018-07-11 14:38:45 +01:00
intel_fbc.c drm/i915: Remove delayed FBC activation. 2018-06-29 10:06:31 +02:00
intel_fbdev.c drm/i915: Use intel_fb_obj() everywhere 2018-05-22 09:44:02 +01:00
intel_fifo_underrun.c
intel_frontbuffer.c drm/i915/psr: Nuke PSR support for VLV and CHV 2018-05-24 16:05:19 +03:00
intel_frontbuffer.h
intel_gpu_commands.h drm/i915: Split GPU commands definitions into separate header 2018-03-15 10:00:03 +00:00
intel_guc_ads.c drm/i915: Wrap engine->context_pin() and engine->context_unpin() 2018-04-30 16:01:13 +01:00
intel_guc_ads.h drm/i915/guc : Decoupling ADS and logs from submission 2018-01-03 14:02:10 +00:00
intel_guc_ct.c drm/i915/guc: Replace %phn with %ph 2018-04-10 17:15:29 +01:00
intel_guc_ct.h drm/i915/guc: Prepare to process incoming requests from CT 2018-03-28 20:35:17 +01:00
intel_guc_fw.c drm/i915/uc: Fetch uC firmware in init_early 2018-03-23 17:03:24 +00:00
intel_guc_fw.h drm/i915/guc: Move firmware selection to init_early 2017-12-06 14:41:47 +00:00
intel_guc_fwif.h drm/i915/guc: Move defines with size of GuC logs to intel_guc_log.h 2018-06-12 15:44:45 +01:00
intel_guc_log.c drm/i915/guc: Move defines with size of GuC logs to intel_guc_log.h 2018-06-12 15:44:45 +01:00
intel_guc_log.h drm/i915/guc: Add support for define guc_log_size in megabytes. 2018-06-12 15:44:47 +01:00
intel_guc_reg.h drm/i915/guc: Check the locking status of GuC WOPCM registers 2018-03-14 15:35:37 +02:00
intel_guc_submission.c drm/i915/guc: Protect against NULL client dereference in error path 2018-07-13 08:51:37 +01:00
intel_guc_submission.h drm/i915/guc: Move GuC workqueue allocations outside of the mutex 2017-12-14 08:06:54 +00:00
intel_guc.c drm/i915/guc: Print CTL params passed to Guc 2018-06-29 23:34:17 +01:00
intel_guc.h drm/i915/guc: Use intel_guc_init_misc to hide GuC internals 2018-06-28 22:51:32 +01:00
intel_gvt.c drm/i915: Unwind HW init after GVT setup failure 2018-07-10 16:46:09 +01:00
intel_gvt.h
intel_hangcheck.c drm/i915: Declare the driver wedged if hangcheck makes no progress 2018-06-14 19:20:33 +01:00
intel_hdcp.c drm/i915: Fix memory leak in intel_hdcp auth 2018-04-06 09:57:31 +03:00
intel_hdmi.c drm/i915/icl: Add 10-bit support for hdmi 2018-06-20 13:54:19 -07:00
intel_hotplug.c drm/i915/icl: HPD pin for port F 2018-03-23 14:59:09 -07:00
intel_huc_fw.c drm/i915/uc: Fetch uC firmware in init_early 2018-03-23 17:03:24 +00:00
intel_huc_fw.h drm/i915/uc: Make GuC/HuC fw fetch and loading functions/file structure symmetric 2018-03-02 09:04:45 +00:00
intel_huc.c drm/i915/uc: Fetch GuC/HuC firmwares from guc/huc specific init 2018-06-28 22:51:33 +01:00
intel_huc.h drm/i915/uc: Fetch GuC/HuC firmwares from guc/huc specific init 2018-06-28 22:51:33 +01:00
intel_i2c.c drm/i915/gmbus: Enable burst read 2018-07-12 17:31:28 +02:00
intel_lpe_audio.c drm/i915: Avoid leaking lpe audio platdev.data 2018-02-08 17:28:53 +00:00
intel_lrc_reg.h drm/i915/icl: Add Indirect Context Offset for Gen11 2018-03-07 15:07:39 +02:00
intel_lrc.c drm/i915/execlists: Switch to rb_root_cached 2018-07-11 14:38:45 +01:00
intel_lrc.h drm/i915: Store a pointer to intel_context in i915_request 2018-05-18 09:35:22 +01:00
intel_lspcon.c drm/i915/lspcon: switch to kernel unsigned int types 2018-06-18 14:46:22 +03:00
intel_lvds.c drm/i915: Allow DBLSCAN user modes with eDP/LVDS/DSI 2018-06-13 21:08:14 +03:00
intel_mocs.c drm/i915/icl: Add configuring MOCS in new Icelake engines 2018-05-03 16:41:04 -07:00
intel_mocs.h drm/i915: Rename drm_i915_gem_request to i915_request 2018-02-21 20:57:22 +00:00
intel_modes.c drm/i915: remove redundant ELD connector type update 2018-01-19 11:58:48 +02:00
intel_opregion.c drm/i915/opregion: move acpi notifier to dev_priv 2018-06-14 13:48:10 +03:00
intel_opregion.h drm/i915/opregion: move acpi notifier to dev_priv 2018-06-14 13:48:10 +03:00
intel_overlay.c drm/i915/frontbuffer: Pull frontbuffer_flush out of gem_obj_pin_to_display 2018-03-13 13:49:39 -07:00
intel_panel.c drm/i915/backlight: switch to kernel unsigned int types 2018-06-18 14:46:04 +03:00
intel_pipe_crc.c drm/i915: Remove support for legacy debugfs crc interface 2018-07-06 14:33:35 +02:00
intel_pm.c drm/i915: Silence warning for no vlv powercontext 2018-07-12 13:26:15 +01:00
intel_psr.c drm/i915/psr: Remove few mod parameters option. 2018-07-12 23:33:38 -07:00
intel_renderstate_gen6.c
intel_renderstate_gen7.c
intel_renderstate_gen8.c
intel_renderstate_gen9.c
intel_renderstate.h
intel_ringbuffer.c drm/i915: Prevent writing into a read-only object via a GGTT mmap 2018-07-13 16:14:04 +01:00
intel_ringbuffer.h drm/i915/execlists: Switch to rb_root_cached 2018-07-11 14:38:45 +01:00
intel_runtime_pm.c drm/i915: Mark expected switch fall-throughs 2018-07-05 16:40:51 +03:00
intel_sdvo_regs.h
intel_sdvo.c drm/i915: Remove pointless if-else from sdvo code 2018-07-05 22:16:56 +03:00
intel_sideband.c drm/i915: Move rps.hw_lock to dev_priv and s/hw_lock/pcu_lock 2017-10-11 08:56:56 +01:00
intel_sprite.c drm/i915: Use crtc_state->has_psr instead of CAN_PSR for pipe update 2018-07-12 19:30:30 -07:00
intel_tv.c drm/i915/tv: fix strncpy truncation warning 2018-07-12 10:18:19 +01:00
intel_uc_fw.c drm/i915/guc: Fix null pointer dereference when GuC FW is not available 2018-03-23 17:03:24 +00:00
intel_uc_fw.h drm/i915/firmware: Correct URL for firmware 2018-05-02 13:40:17 -07:00
intel_uc.c drm/i915/uc: Fetch GuC/HuC firmwares from guc/huc specific init 2018-06-28 22:51:33 +01:00
intel_uc.h drm/i915/uc: Fetch uC firmware in init_early 2018-03-23 17:03:24 +00:00
intel_uncore.c drm/i915: Add WaKBLVECSSemaphoreWaitPoll 2018-06-08 12:16:20 +03:00
intel_uncore.h drm/i915/uncore: switch to kernel unsigned int types 2018-06-18 14:45:51 +03:00
intel_vbt_defs.h drm/i915/vbt: switch to kernel unsigned int types 2018-06-18 14:44:52 +03:00
intel_wopcm.c drm/i915: Use correct reST syntax for WOPCM and GuC kernel-doc diagrams 2018-03-28 14:42:56 +03:00
intel_wopcm.h drm/i915/guc: Check the locking status of GuC WOPCM registers 2018-03-14 15:35:37 +02:00
intel_workarounds.c drm/i915: Keep the ctx workarounds tightly packed 2018-06-15 13:27:04 +01:00
intel_workarounds.h drm/i915: Check whitelist registers across resets 2018-04-14 18:36:45 +01:00
Kconfig
Kconfig.debug drm/i915: Squelch very verbose error logging 2018-07-06 11:23:47 +01:00
Makefile drm/i915/icl: Program DSI Escape clock Divider 2018-07-06 12:13:34 +03:00
vlv_dsi_pll.c drm/i915/dsi: use vlv and bxt prefixes for the global DSI functions 2018-07-06 10:54:05 +03:00
vlv_dsi.c drm/i915/dsi: update some of the platform based checks 2018-07-06 10:54:10 +03:00