noctra/vgpu_unlock-rs
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lib: fix NV2080_CTRL_CMD_BUS_GET_PCI_INFO structure size

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- The change to `check_size` broke this ioctl
This commit is contained in:
Matt Bilker
2022-12-05 04:19:18 +00:00
parent 1841077f87
commit 556469352c
1 changed files with 4 additions and 4 deletions
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8
src/lib.rs
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@@ -83,7 +83,7 @@ const OP_READ_START_CALL: u32 = 0xc01;
/// `result` is a pointer to `uint32_t`.
const NV0080_CTRL_CMD_GPU_GET_VIRTUALIZATION_MODE: u32 = 0x800289;
/// `result` is a pointer to `uint16_t[4]`, the second element (index 1) is the device ID, the
/// `result` is a pointer to `uint32_t[4]`, the second element (index 1) is the device ID, the
/// forth element (index 3) is the subsystem ID.
///
/// Pulled from https://github.com/NVIDIA/open-gpu-kernel-modules/blob/d8f3bcff924776518f1e63286537c3cf365289ac/src/common/sdk/nvidia/inc/ctrl/ctrl2080/ctrl2080bus.h
@@ -592,11 +592,11 @@ pub unsafe extern "C" fn ioctl(fd: RawFd, request: c_ulong, argp: *mut c_void) -
match io_data.cmd {
NV2080_CTRL_CMD_BUS_GET_PCI_INFO
if check_size!(NV2080_CTRL_CMD_BUS_GET_PCI_INFO, size: 8) && CONFIG.unlock =>
if check_size!(NV2080_CTRL_CMD_BUS_GET_PCI_INFO, size: 16) && CONFIG.unlock =>
{
// Lookup address of the device and subsystem IDs.
let devid_ptr: *mut u16 = io_data.params.add(2).cast();
let subsysid_ptr: *mut u16 = io_data.params.add(6).cast();
let devid_ptr: *mut u32 = io_data.params.add(0).cast();
let subsysid_ptr: *mut u32 = io_data.params.add(4).cast();
let actual_devid = *devid_ptr;
let actual_subsysid = *subsysid_ptr;