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hypervisor: Add Misc register to Save/Restore state for MSHV

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Hypercall register needs to be saved and restored for
TLB flush and IPI synthetic features enablement.
Enabling these two synthetic features improves
guest performance.

Signed-off-by: Muminul Islam <muislam@microsoft.com>
This commit is contained in:
Muminul Islam
2021-09-30 12:41:32 -07:00
committed by Bo Chen
parent 2226207874
commit c3d6aceed1
4 changed files with 31 additions and 6 deletions
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10
hypervisor/src/mshv/x86_64/mod.rs
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@@ -18,10 +18,11 @@ pub use {
mshv_bindings::mshv_user_mem_region as MemoryRegion, mshv_bindings::msr_entry as MsrEntry,
mshv_bindings::CpuId, mshv_bindings::DebugRegisters,
mshv_bindings::FloatingPointUnit as FpuState, mshv_bindings::LapicState,
mshv_bindings::MsrList, mshv_bindings::Msrs as MsrEntries, mshv_bindings::Msrs,
mshv_bindings::SegmentRegister, mshv_bindings::SpecialRegisters,
mshv_bindings::StandardRegisters, mshv_bindings::SuspendRegisters, mshv_bindings::VcpuEvents,
mshv_bindings::XSave as Xsave, mshv_bindings::Xcrs as ExtendedControlRegisters,
mshv_bindings::MiscRegs as MiscRegisters, mshv_bindings::MsrList,
mshv_bindings::Msrs as MsrEntries, mshv_bindings::Msrs, mshv_bindings::SegmentRegister,
mshv_bindings::SpecialRegisters, mshv_bindings::StandardRegisters,
mshv_bindings::SuspendRegisters, mshv_bindings::VcpuEvents, mshv_bindings::XSave as Xsave,
mshv_bindings::Xcrs as ExtendedControlRegisters,
};
#[derive(Clone, Serialize, Deserialize)]
@@ -35,6 +36,7 @@ pub struct VcpuMshvState {
pub lapic: LapicState,
pub dbg: DebugRegisters,
pub xsave: Xsave,
pub misc: MiscRegisters,
}
impl fmt::Display for VcpuMshvState {