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hypervisor: Retrieve list of supported MSRs

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Add a new function to the hypervisor trait so that the caller can
retrieve the list of MSRs supported by this hypervisor.

Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
This commit is contained in:
Sebastien Boeuf
2020-06-29 18:00:49 +02:00
committed by Rob Bradford
parent e2b5c78dc5
commit 49b4fba283
3 changed files with 22 additions and 3 deletions
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11
hypervisor/src/kvm/mod.rs
View File

@@ -36,7 +36,7 @@ pub use x86_64::{
};
#[cfg(target_arch = "x86_64")]
use kvm_bindings::{kvm_enable_cap, KVM_CAP_SPLIT_IRQCHIP};
use kvm_bindings::{kvm_enable_cap, MsrList, KVM_CAP_SPLIT_IRQCHIP};
#[cfg(target_arch = "x86_64")]
use crate::arch::x86::NUM_IOAPIC_PINS;
@@ -333,6 +333,15 @@ impl hypervisor::Hypervisor for KvmHypervisor {
.get_supported_cpuid(kvm_bindings::KVM_MAX_CPUID_ENTRIES)
.map_err(|e| hypervisor::HypervisorError::GetCpuId(e.into()))
}
#[cfg(target_arch = "x86_64")]
///
/// Retrieve the list of MSRs supported by KVM.
///
fn get_msr_list(&self) -> hypervisor::Result<MsrList> {
self.kvm
.get_msr_index_list()
.map_err(|e| hypervisor::HypervisorError::GetMsrList(e.into()))
}
}
/// Vcpu struct for KVM
pub struct KvmVcpu {

2
hypervisor/src/kvm/x86_64/mod.rs
View File

@@ -24,7 +24,7 @@ pub use {
kvm_bindings::kvm_segment as SegmentRegister, kvm_bindings::kvm_sregs as SpecialRegisters,
kvm_bindings::kvm_vcpu_events as VcpuEvents,
kvm_bindings::kvm_xcrs as ExtendedControlRegisters, kvm_bindings::kvm_xsave as Xsave,
kvm_bindings::CpuId, kvm_bindings::Msrs as MsrEntries,
kvm_bindings::CpuId, kvm_bindings::MsrList, kvm_bindings::Msrs as MsrEntries,
};
pub const KVM_TSS_ADDRESS: GuestAddress = GuestAddress(0xfffb_d000);