noctra/vgpu_unlock-rs
1
0
Fork 0
mirror of https://github.com/mbilker/vgpu_unlock-rs.git synced 2025-06-06 20:58:22 +02:00
Code Issues Packages Projects Releases Wiki Activity

lib: added params_size for v18 driver compatibility

Browse Source 
In vGPU 18.x (R570)
- Parameters size for `NV0000_CTRL_CMD_VGPU_CREATE_DEVICE` was 40 bytes
- Parameters size for `NV0080_CTRL_CMD_GPU_GET_VIRTUALIZATION_MODE` was 8 bytes

Signed-off-by: Coia Prant <coiaprant@gmail.com>
This commit is contained in:
Coia Prant 2025-06-03 00:21:55 +08:00 committed by Matthew Bilker
parent 0ff7938678
commit a31da7a87d
1 changed files with 11 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

16
src/lib.rs
View File

@ -394,7 +394,10 @@ pub unsafe extern "C" fn ioctl(fd: RawFd, request: c_ulong, argp: *mut c_void) -
params.pci_sub_system_id = (orig_sub_system_id & 0xffff) | (spoofed_subsysid << 16);
}
NV0080_CTRL_CMD_GPU_GET_VIRTUALIZATION_MODE
if check_size!(
// 18.0 driver sends larger struct with size 8 bytes. Only extra members added at the end,
// nothing in between or changed, so accessing the larger struct is "safe"
if io_data.params_size == 8
|| check_size!(
NV0080_CTRL_CMD_GPU_GET_VIRTUALIZATION_MODE,
Nv0080CtrlGpuGetVirtualizationModeParams
) && CONFIG.unlock =>
@ -432,10 +435,13 @@ pub unsafe extern "C" fn ioctl(fd: RawFd, request: c_ulong, argp: *mut c_void) -
*LAST_MDEV_UUID.lock() = Some(config.mdev_uuid);
}
NV0000_CTRL_CMD_VGPU_CREATE_DEVICE
if check_size!(
NV0000_CTRL_CMD_VGPU_CREATE_DEVICE,
Nv0000CtrlVgpuCreateDeviceParams
) =>
// 18.0 driver sends larger struct with size 40 bytes. Only extra members added at the end,
// nothing in between or changed, so accessing the larger struct is "safe"
if io_data.params_size == 40
|| check_size!(
NV0000_CTRL_CMD_VGPU_CREATE_DEVICE,
Nv0000CtrlVgpuCreateDeviceParams
) =>
{
// 17.0 driver provides mdev uuid as vgpu_name in this command
let params: &mut Nv0000CtrlVgpuCreateDeviceParams = &mut *io_data.params.cast();