Enum EsrDecoded 

pub enum EsrDecoded {
    DataAbort {
        is_write: bool,
        sas: u8,
        srt: u8,
        sf: bool,
    },
    Hvc {
        imm16: u16,
    },
    Smc {
        imm16: u16,
    },
    SystemRegister {
        read: bool,
        op0: u8,
        op1: u8,
        crn: u8,
        crm: u8,
        op2: u8,
        xt: u8,
    },
    Wfi,
    Wfe,
    Brk {
        imm16: u16,
    },
    Other {
        ec: u8,
        raw: u64,
    },
}

A decoded ESR_EL2 value.

Variants

DataAbort

Data abort taken from a lower exception level. is_write distinguishes load vs store; sas is the syndrome access size (0 = byte, 1 = halfword, 2 = word, 3 = doubleword). srt is the source/destination register index (0..=31). sf indicates 64-bit register width.

Fields

is_write: bool

true for store, false for load.

sas: u8

Syndrome access size: byte/halfword/word/doubleword.

srt: u8

Source/destination register (X0..X31, where X31 is XZR).

sf: bool

64-bit operation flag.

Hvc

HVC immediate. The argument register x[0..3] is read separately by the caller.

Fields

imm16: u16

16-bit immediate operand encoded in the instruction.

Smc

SMC immediate.

Fields

imm16: u16

16-bit immediate operand encoded in the instruction.

SystemRegister

Trapped MSR / MRS / system instruction.

Fields

read: bool

true = MRS (read sysreg), false = MSR (write sysreg).

op0: u8

Op0 from the encoding.

op1: u8

Op1.

crn: u8

CRn.

crm: u8

CRm.

op2: u8

Op2.

xt: u8

Source/destination register (X0..X30; X31 is XZR).

Wfi

WFI.

Wfe

WFE.

Brk

BRK immediate (debugger breakpoint).

Fields

imm16: u16

16-bit immediate.

Other

Anything not specifically decoded above. The caller treats this as fatal and returns VmExit::InternalError.

Fields

ec: u8

Exception class field (bits 31..26).

raw: u64

The original raw ESR_EL2 register value, for logging.

Trait Implementations

impl Clone for EsrDecoded

fn clone(&self) -> EsrDecoded

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for EsrDecoded

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl PartialEq for EsrDecoded

fn eq(&self, other: &EsrDecoded) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Copy for EsrDecoded

impl Eq for EsrDecoded

impl StructuralPartialEq for EsrDecoded