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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/cpu.rs
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@@ -174,6 +174,16 @@ pub enum HypervisorCpuError {
#[error("Failed to get debug registers: {0}")]
GetDebugRegs(#[source] anyhow::Error),
///
/// Setting misc register error
///
#[error("Failed to set misc registers: {0}")]
SetMiscRegs(#[source] anyhow::Error),
///
/// Getting misc register error
///
#[error("Failed to get misc registers: {0}")]
GetMiscRegs(#[source] anyhow::Error),
///
/// Write to Guest Mem
///
#[error("Failed to write to Guest Mem at: {0}")]