Struct x86_64::msr::MsrPassthroughHandler

struct MsrPassthroughHandler {
    index: u32,
    from: MsrValueFrom,
    msr_file: Rc<RefCell<BTreeMap<usize, Rc<MsrDevFile>>>>,
}

MsrPassthroughHandler - passthrough handler that will handle RDMSR/WRMSR by reading/writing MSR file directly. For RDMSR, this handler will give Guest the current MSR value on Host. For WRMSR, this handler will directly pass the change desired by the Guest to the host, and expect the change to take effect on the MSR of the host.

Fields

index: u32

MSR index.

from: MsrValueFrom

MSR source CPU, CPU 0 or running CPU.

msr_file: Rc<RefCell<BTreeMap<usize, Rc<MsrDevFile>>>>

Reference of MSR file descriptors.

Implementations

impl MsrPassthroughHandler

fn new(
    index: u32,
    msr_config: &MsrConfig,
    msr_file: Rc<RefCell<BTreeMap<usize, Rc<MsrDevFile>>>>
) -> Result<Self>

fn get_msr_dev(&self) -> Result<Rc<MsrDevFile>>

A helper interface to get MSR file descriptor.

Trait Implementations

impl MsrHandling for MsrPassthroughHandler

fn read(&self) -> Result<u64>

fn write(&mut self, data: u64) -> Result<()>