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hypervisor: kvm: introduce a check_extension macro

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That reduces code repetition.

Signed-off-by: Wei Liu <liuwe@microsoft.com>
This commit is contained in:
Wei Liu 2024-05-07 00:51:22 +00:00 committed by Rob Bradford
parent 8093820965
commit c07671edb4
2 changed files with 21 additions and 19 deletions
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10
hypervisor/src/kvm/aarch64/mod.rs
View File

@ -106,9 +106,15 @@ pub fn is_system_register(regid: u64) -> bool {
}
pub fn check_required_kvm_extensions(kvm: &Kvm) -> KvmResult<()> {
if !kvm.check_extension(Cap::OneReg) {
return Err(KvmError::CapabilityMissing(Cap::OneReg));
macro_rules! check_extension {
($cap:expr) => {
if !kvm.check_extension($cap) {
return Err(KvmError::CapabilityMissing($cap));
}
};
}
check_extension!(Cap::OneReg);
Ok(())
}

30
hypervisor/src/kvm/x86_64/mod.rs
View File

@ -32,24 +32,20 @@ pub use {
/// Check KVM extension for Linux
///
pub fn check_required_kvm_extensions(kvm: &Kvm) -> KvmResult<()> {
if !kvm.check_extension(Cap::GetTscKhz) {
return Err(KvmError::CapabilityMissing(Cap::GetTscKhz));
}
if !kvm.check_extension(Cap::ImmediateExit) {
return Err(KvmError::CapabilityMissing(Cap::ImmediateExit));
}
if !kvm.check_extension(Cap::SetIdentityMapAddr) {
return Err(KvmError::CapabilityMissing(Cap::SetIdentityMapAddr));
}
if !kvm.check_extension(Cap::SetTssAddr) {
return Err(KvmError::CapabilityMissing(Cap::SetTssAddr));
}
if !kvm.check_extension(Cap::SplitIrqchip) {
return Err(KvmError::CapabilityMissing(Cap::SplitIrqchip));
}
if !kvm.check_extension(Cap::TscDeadlineTimer) {
return Err(KvmError::CapabilityMissing(Cap::TscDeadlineTimer));
macro_rules! check_extension {
($cap:expr) => {
if !kvm.check_extension($cap) {
return Err(KvmError::CapabilityMissing($cap));
}
};
}
check_extension!(Cap::GetTscKhz);
check_extension!(Cap::ImmediateExit);
check_extension!(Cap::SetIdentityMapAddr);
check_extension!(Cap::SetTssAddr);
check_extension!(Cap::SplitIrqchip);
check_extension!(Cap::TscDeadlineTimer);
Ok(())
}
#[derive(Clone, Serialize, Deserialize)]