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Add error handling

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This commit is contained in:
Hsy-Intel 2023-11-30 14:30:32 +08:00 committed by Tate, Hongliang Tian
parent 55ea3dc86f
commit 2d0f5253e9
1 changed files with 39 additions and 4 deletions
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43
services/libs/jinux-std/src/device/tdxguest/mod.rs
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@ -4,7 +4,7 @@ use crate::fs::inode_handle::FileIo;
use crate::fs::utils::IoctlCmd;
use crate::process::signal::Poller;
use crate::util::{read_val_from_user, write_val_to_user};
use tdx_guest::tdcall::get_report;
use tdx_guest::tdcall::{get_report, TdCallError};
const TDX_REPORTDATA_LEN: usize = 64;
const TDX_REPORT_LEN: usize = 1024;
@ -24,9 +24,10 @@ impl Device for TdxGuest {
}
fn id(&self) -> DeviceId {
DeviceId::new(10, 0)
DeviceId::new(0xa, 0x7b)
}
}
impl FileIo for TdxGuest {
fn read(&self, buf: &mut [u8]) -> Result<usize> {
return_errno_with_message!(Errno::EPERM, "Read operation not supported")
@ -39,8 +40,42 @@ impl FileIo for TdxGuest {
fn ioctl(&self, cmd: IoctlCmd, arg: usize) -> Result<i32> {
match cmd {
IoctlCmd::TDXGETREPORT => {
let tdx_report: TdxReportRequest = read_val_from_user(arg)?;
get_report(&tdx_report.tdreport, &tdx_report.reportdata).unwrap();
let mut tdx_report: TdxReportRequest = read_val_from_user(arg)?;
match get_report(&mut tdx_report.tdreport, &tdx_report.reportdata) {
Ok(_) => {}
Err(err) => match err {
TdCallError::TdxNoValidVeInfo => {
return_errno_with_message!(
Errno::EINVAL,
"TdCallError::TdxNoValidVeInfo"
)
}
TdCallError::TdxOperandInvalid => {
return_errno_with_message!(
Errno::EINVAL,
"TdCallError::TdxOperandInvalid"
)
}
TdCallError::TdxPageAlreadyAccepted => {
return_errno_with_message!(
Errno::EINVAL,
"TdCallError::TdxPageAlreadyAccepted"
)
}
TdCallError::TdxPageSizeMismatch => {
return_errno_with_message!(
Errno::EINVAL,
"TdCallError::TdxPageSizeMismatch"
)
}
TdCallError::TdxOperandBusy => {
return_errno_with_message!(Errno::EBUSY, "TdCallError::TdxOperandBusy")
}
TdCallError::Other => {
return_errno_with_message!(Errno::EAGAIN, "TdCallError::Other")
}
},
};
write_val_to_user(arg, &tdx_report)?;
Ok(0)
}