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test: Add test case for MSR Read&Write
Signed-off-by: Wei Liu <[email protected]>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,100 @@ | ||
| // Copyright (c) 2022 Intel Corporation | ||
| // | ||
| // SPDX-License-Identifier: BSD-2-Clause-Patent | ||
|
|
||
| #![no_std] | ||
| extern crate alloc; | ||
|
|
||
| use crate::lib::{TestCase, TestResult}; | ||
| use alloc::string::String; | ||
| use core::ffi::c_void; | ||
| use tdx_tdcall::tdx; | ||
|
|
||
| use serde::{Deserialize, Serialize}; | ||
|
|
||
| /** | ||
| * Test tdvmcall read/write MSR | ||
| */ | ||
| #[derive(Debug, Serialize, Deserialize)] | ||
| pub struct Tdmsrrw { | ||
| pub name: String, | ||
| pub result: TestResult, | ||
| pub run: bool, | ||
| } | ||
|
|
||
| impl Tdmsrrw { | ||
| fn test(&mut self) -> TestResult { | ||
| const APIC_SVR_MSR: u32 = 0x80f; // APIC Spurious Vector Register MSR address | ||
|
|
||
| // Read the current value of the APIC SVR MSR | ||
| match tdx::tdvmcall_rdmsr(APIC_SVR_MSR) { | ||
| Ok(read1) => { | ||
| // Attempt to write the incremented value back to the APIC SVR MSR | ||
| if tdx::tdvmcall_wrmsr(APIC_SVR_MSR, read1 + 1).is_err() { | ||
| log::info!("Failed to write MSR 0x{:x}", APIC_SVR_MSR); | ||
| return TestResult::Fail; | ||
| } | ||
|
|
||
| // Read the value again to verify the write operation | ||
| match tdx::tdvmcall_rdmsr(APIC_SVR_MSR) { | ||
| Ok(read2) if read1 + 1 == read2 => TestResult::Pass, | ||
| Ok(read2) => { | ||
| log::info!( | ||
| "Mismatch after write: expected {:?}, actual {:?}", | ||
| read1 + 1, | ||
| read2 | ||
| ); | ||
| TestResult::Fail | ||
| } | ||
| Err(_) => { | ||
| log::info!("Failed to read MSR 0x{:x}", APIC_SVR_MSR); | ||
| TestResult::Fail | ||
| } | ||
| } | ||
| } | ||
| Err(_) => { | ||
| log::info!("Failed to read MSR 0x{:x}", APIC_SVR_MSR); | ||
| TestResult::Fail | ||
| } | ||
| } | ||
| } | ||
| } | ||
|
|
||
| /** | ||
| * Implement the TestCase trait for Tdmsrrw | ||
| */ | ||
| impl TestCase for Tdmsrrw { | ||
| /** | ||
| * set up the Test case of Tdmsrrw | ||
| */ | ||
| fn setup(&mut self) { | ||
| self.result = TestResult::Fail; | ||
| } | ||
|
|
||
| /** | ||
| * run the test case | ||
| * mmio read/write vsock device | ||
| */ | ||
| fn run(&mut self) { | ||
| self.result = self.test(); | ||
| } | ||
|
|
||
| /** | ||
| * Tear down the test case. | ||
| */ | ||
| fn teardown(&mut self) {} | ||
|
|
||
| /** | ||
| * get the name of the test case. | ||
| */ | ||
| fn get_name(&mut self) -> String { | ||
| String::from(&self.name) | ||
| } | ||
|
|
||
| /** | ||
| * get the result of the test case. | ||
| */ | ||
| fn get_result(&mut self) -> TestResult { | ||
| self.result | ||
| } | ||
| } |