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hypervisor: provide a generic FpuState structure

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Signed-off-by: Wei Liu <liuwe@microsoft.com>
This commit is contained in:
Wei Liu
2022-07-15 12:35:10 +00:00
committed by Rob Bradford
parent 08135fa085
commit 6a8c0fc887
8 changed files with 105 additions and 19 deletions
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15
hypervisor/src/kvm/mod.rs
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@@ -46,7 +46,9 @@ use vmm_sys_util::eventfd::EventFd;
#[cfg(target_arch = "x86_64")]
pub mod x86_64;
#[cfg(target_arch = "x86_64")]
use crate::arch::x86::{CpuIdEntry, SpecialRegisters, StandardRegisters, NUM_IOAPIC_PINS};
use crate::arch::x86::{
CpuIdEntry, FpuState, SpecialRegisters, StandardRegisters, NUM_IOAPIC_PINS,
};
#[cfg(target_arch = "x86_64")]
use crate::ClockData;
use crate::{
@@ -61,7 +63,7 @@ use kvm_bindings::{
KVM_CAP_SPLIT_IRQCHIP, KVM_GUESTDBG_ENABLE, KVM_GUESTDBG_SINGLESTEP, KVM_GUESTDBG_USE_HW_BP,
};
#[cfg(target_arch = "x86_64")]
use x86_64::{check_required_kvm_extensions, FpuState};
use x86_64::check_required_kvm_extensions;
#[cfg(target_arch = "x86_64")]
pub use x86_64::{CpuId, ExtendedControlRegisters, LapicState, MsrEntries, VcpuKvmState, Xsave};
// aarch64 dependencies
@@ -1306,17 +1308,20 @@ impl cpu::Vcpu for KvmVcpu {
/// Returns the floating point state (FPU) from the vCPU.
///
fn get_fpu(&self) -> cpu::Result<FpuState> {
self.fd
Ok(self
.fd
.get_fpu()
.map_err(|e| cpu::HypervisorCpuError::GetFloatingPointRegs(e.into()))
.map_err(|e| cpu::HypervisorCpuError::GetFloatingPointRegs(e.into()))?
.into())
}
#[cfg(target_arch = "x86_64")]
///
/// Set the floating point state (FPU) of a vCPU using the `KVM_SET_FPU` ioct.
///
fn set_fpu(&self, fpu: &FpuState) -> cpu::Result<()> {
let fpu: kvm_bindings::kvm_fpu = (*fpu).clone().into();
self.fd
.set_fpu(fpu)
.set_fpu(&fpu)
.map_err(|e| cpu::HypervisorCpuError::SetFloatingPointRegs(e.into()))
}
#[cfg(target_arch = "x86_64")]