diff options
Diffstat (limited to 'hypervisor/src/x86_64.rs')
| -rw-r--r-- | hypervisor/src/x86_64.rs | 20 |
1 files changed, 16 insertions, 4 deletions
diff --git a/hypervisor/src/x86_64.rs b/hypervisor/src/x86_64.rs index e05335c..87f0777 100644 --- a/hypervisor/src/x86_64.rs +++ b/hypervisor/src/x86_64.rs @@ -2,13 +2,10 @@ // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. -use kvm_sys::kvm_cpuid_entry2; use sys_util::Result; use crate::{Hypervisor, Vcpu, Vm}; -pub type CpuIdEntry = kvm_cpuid_entry2; - /// A trait for managing cpuids for an x86_64 hypervisor and for checking its capabilities. pub trait HypervisorX86_64: Hypervisor { /// Get the system supported CPUID values. @@ -32,8 +29,23 @@ pub trait VcpuX86_64: Vcpu { fn get_regs(&self) -> Result<Regs>; } +/// A CpuId Entry contains supported feature information for the given processor. +/// This can be modified by the hypervisor to pass additional information to the guest kernel +/// about the hypervisor or vm. Information is returned in the eax, ebx, ecx and edx registers +/// by the cpu for a given function and index/subfunction (passed into the cpu via the eax and ecx +/// register respectively). +pub struct CpuIdEntry { + pub function: u32, + pub index: u32, + pub eax: u32, + pub ebx: u32, + pub ecx: u32, + pub edx: u32, +} + +/// A container for the list of cpu id entries for the hypervisor and underlying cpu. pub struct CpuId { - _cpu_id_entries: Vec<CpuIdEntry>, + pub cpu_id_entries: Vec<CpuIdEntry>, } /// The state of a vcpu's general-purpose registers. |