ArchCapaMSRFlags

Struct ArchCapaMSRFlags 

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pub struct ArchCapaMSRFlags(/* private fields */);
Expand description

Feature flags enumerated in the IA32_ARCH_CAPABILITIES MSR. See https://www.intel.com/content/www/us/en/developer/articles/technical/software-security-guidance/technical-documentation/cpuid-enumeration-and-architectural-msrs.html

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impl ArchCapaMSRFlags

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pub const RDCL_NO: Self

The processor is not susceptible to Rogue Data Cache Load (RDCL).

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pub const IBRS_ALL: Self

The processor supports enhanced Indirect Branch Restriction Speculation (IBRS)

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pub const RSBA: Self

The processor supports RSB Alternate. Alternative branch predictors may be used by RET instructions when the RSB is empty. Software using retpoline may be affected by this behavior.

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pub const SKIP_L1DFL_VMENTRY: Self

A value of 1 indicates the hypervisor need not flush the L1D on VM entry.

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pub const SSB_NO: Self

Processor is not susceptible to Speculative Store Bypass (SSB).

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pub const MDS_NO: Self

Processor is not susceptible to Microarchitectural Data Sampling (MDS).

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pub const IF_PSCHANGE_MC_NO: Self

The processor is not susceptible to a machine check error due to modifying the size of a code page without TLB invalidation.

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pub const TSX_CTRL: Self

The processor supports RTM_DISABLE and TSX_CPUID_CLEAR.

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pub const TAA_NO: Self

Processor is not susceptible to Intel® Transactional Synchronization Extensions (Intel® TSX) Asynchronous Abort (TAA).

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pub const MISC_PACKAGE_CTRLS: Self

Processor supports IA32_MISC_PACKAGE_CTRLS MSR.

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pub const ENERGY_FILTERING_CTL: Self

Processor supports setting and reading IA32_MISC_PACKAGE_CTLS[0] (ENERGY_FILTERING_ENABLE) bit.

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pub const DOITM: Self

The processor supports data operand independent timing mode.

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pub const SBDR_SSDP_NO: Self

The processor is not affected by either the Shared Buffers Data Read (SBDR) vulnerability or the Sideband Stale Data Propagator (SSDP).

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pub const FBSDP_NO: Self

The processor is not affected by the Fill Buffer Stale Data Propagator (FBSDP).

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pub const PSDP_NO: Self

The processor is not affected by vulnerabilities involving the Primary Stale Data Propagator (PSDP).

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pub const FB_CLEAR: Self

The processor will overwrite fill buffer values as part of MD_CLEAR operations with the VERW instruction. On these processors, L1D_FLUSH does not overwrite fill buffer values.

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pub const FB_CLEAR_CTRL: Self

The processor supports read and write to the IA32_MCU_OPT_CTRL MSR (MSR 123H) and to the FB_CLEAR_DIS bit in that MSR (bit position 3).

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pub const RRSBA: Self

A value of 1 indicates processor may have the RRSBA alternate prediction behavior, if not disabled by RRSBA_DIS_U or RRSBA_DIS_S.

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pub const BHI_NO: Self

A value of 1 indicates BHI_NO branch prediction behavior, regardless of the value of IA32_SPEC_CTRL[BHI_DIS_S] MSR bit.

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pub const OVERCLOCKING_STATUS: Self

If set, the IA32_OVERCLOCKING STATUS MSR exists.

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impl ArchCapaMSRFlags

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pub const fn empty() -> Self

Get a flags value with all bits unset.

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pub const fn all() -> Self

Get a flags value with all known bits set.

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pub const fn bits(&self) -> u64

Get the underlying bits value.

The returned value is exactly the bits set in this flags value.

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pub const fn from_bits(bits: u64) -> Option<Self>

Convert from a bits value.

This method will return None if any unknown bits are set.

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pub const fn from_bits_truncate(bits: u64) -> Self

Convert from a bits value, unsetting any unknown bits.

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pub const fn from_bits_retain(bits: u64) -> Self

Convert from a bits value exactly.

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pub fn from_name(name: &str) -> Option<Self>

Get a flags value with the bits of a flag with the given name set.

This method will return None if name is empty or doesn’t correspond to any named flag.

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pub const fn is_empty(&self) -> bool

Whether all bits in this flags value are unset.

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pub const fn is_all(&self) -> bool

Whether all known bits in this flags value are set.

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pub const fn intersects(&self, other: Self) -> bool

Whether any set bits in a source flags value are also set in a target flags value.

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pub const fn contains(&self, other: Self) -> bool

Whether all set bits in a source flags value are also set in a target flags value.

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pub fn insert(&mut self, other: Self)

The bitwise or (|) of the bits in two flags values.

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pub fn remove(&mut self, other: Self)

The intersection of a source flags value with the complement of a target flags value (&!).

This method is not equivalent to self & !other when other has unknown bits set. remove won’t truncate other, but the ! operator will.

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pub fn toggle(&mut self, other: Self)

The bitwise exclusive-or (^) of the bits in two flags values.

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pub fn set(&mut self, other: Self, value: bool)

Call insert when value is true or remove when value is false.

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pub const fn intersection(self, other: Self) -> Self

The bitwise and (&) of the bits in two flags values.

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pub const fn union(self, other: Self) -> Self

The bitwise or (|) of the bits in two flags values.

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pub const fn difference(self, other: Self) -> Self

The intersection of a source flags value with the complement of a target flags value (&!).

This method is not equivalent to self & !other when other has unknown bits set. difference won’t truncate other, but the ! operator will.

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pub const fn symmetric_difference(self, other: Self) -> Self

The bitwise exclusive-or (^) of the bits in two flags values.

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pub const fn complement(self) -> Self

The bitwise negation (!) of the bits in a flags value, truncating the result.

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impl ArchCapaMSRFlags

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pub const fn iter(&self) -> Iter<ArchCapaMSRFlags>

Yield a set of contained flags values.

Each yielded flags value will correspond to a defined named flag. Any unknown bits will be yielded together as a final flags value.

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pub const fn iter_names(&self) -> IterNames<ArchCapaMSRFlags>

Yield a set of contained named flags values.

This method is like iter, except only yields bits in contained named flags. Any unknown bits, or bits not corresponding to a contained flag will not be yielded.

Trait Implementations§

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impl Binary for ArchCapaMSRFlags

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

Formats the value using the given formatter. Read more
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impl BitAnd for ArchCapaMSRFlags

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fn bitand(self, other: Self) -> Self

The bitwise and (&) of the bits in two flags values.

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type Output = ArchCapaMSRFlags

The resulting type after applying the & operator.
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impl BitAndAssign for ArchCapaMSRFlags

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fn bitand_assign(&mut self, other: Self)

The bitwise and (&) of the bits in two flags values.

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impl BitOr for ArchCapaMSRFlags

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fn bitor(self, other: ArchCapaMSRFlags) -> Self

The bitwise or (|) of the bits in two flags values.

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type Output = ArchCapaMSRFlags

The resulting type after applying the | operator.
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impl BitOrAssign for ArchCapaMSRFlags

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fn bitor_assign(&mut self, other: Self)

The bitwise or (|) of the bits in two flags values.

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impl BitXor for ArchCapaMSRFlags

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fn bitxor(self, other: Self) -> Self

The bitwise exclusive-or (^) of the bits in two flags values.

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type Output = ArchCapaMSRFlags

The resulting type after applying the ^ operator.
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impl BitXorAssign for ArchCapaMSRFlags

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fn bitxor_assign(&mut self, other: Self)

The bitwise exclusive-or (^) of the bits in two flags values.

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impl Default for ArchCapaMSRFlags

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fn default() -> ArchCapaMSRFlags

Returns the “default value” for a type. Read more
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impl Extend<ArchCapaMSRFlags> for ArchCapaMSRFlags

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fn extend<T: IntoIterator<Item = Self>>(&mut self, iterator: T)

The bitwise or (|) of the bits in each flags value.

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fn extend_one(&mut self, item: A)

🔬This is a nightly-only experimental API. (extend_one)
Extends a collection with exactly one element.
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fn extend_reserve(&mut self, additional: usize)

🔬This is a nightly-only experimental API. (extend_one)
Reserves capacity in a collection for the given number of additional elements. Read more
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impl Flags for ArchCapaMSRFlags

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const FLAGS: &'static [Flag<ArchCapaMSRFlags>]

The set of defined flags.
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type Bits = u64

The underlying bits type.
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fn bits(&self) -> u64

Get the underlying bits value. Read more
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fn from_bits_retain(bits: u64) -> ArchCapaMSRFlags

Convert from a bits value exactly.
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fn empty() -> Self

Get a flags value with all bits unset.
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fn all() -> Self

Get a flags value with all known bits set.
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fn contains_unknown_bits(&self) -> bool

This method will return true if any unknown bits are set.
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fn from_bits(bits: Self::Bits) -> Option<Self>

Convert from a bits value. Read more
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fn from_bits_truncate(bits: Self::Bits) -> Self

Convert from a bits value, unsetting any unknown bits.
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fn from_name(name: &str) -> Option<Self>

Get a flags value with the bits of a flag with the given name set. Read more
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fn iter(&self) -> Iter<Self>

Yield a set of contained flags values. Read more
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fn iter_names(&self) -> IterNames<Self>

Yield a set of contained named flags values. Read more
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fn iter_defined_names() -> IterDefinedNames<Self>

Yield a set of all named flags defined by [Self::FLAGS].
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fn is_empty(&self) -> bool

Whether all bits in this flags value are unset.
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fn is_all(&self) -> bool

Whether all known bits in this flags value are set.
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fn intersects(&self, other: Self) -> bool
where Self: Sized,

Whether any set bits in a source flags value are also set in a target flags value.
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fn contains(&self, other: Self) -> bool
where Self: Sized,

Whether all set bits in a source flags value are also set in a target flags value.
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fn truncate(&mut self)
where Self: Sized,

Remove any unknown bits from the flags.
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fn insert(&mut self, other: Self)
where Self: Sized,

The bitwise or (|) of the bits in two flags values.
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fn remove(&mut self, other: Self)
where Self: Sized,

The intersection of a source flags value with the complement of a target flags value (&!). Read more
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fn toggle(&mut self, other: Self)
where Self: Sized,

The bitwise exclusive-or (^) of the bits in two flags values.
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fn set(&mut self, other: Self, value: bool)
where Self: Sized,

Call [Flags::insert] when value is true or [Flags::remove] when value is false.
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fn clear(&mut self)
where Self: Sized,

Unsets all bits in the flags.
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fn intersection(self, other: Self) -> Self

The bitwise and (&) of the bits in two flags values.
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fn union(self, other: Self) -> Self

The bitwise or (|) of the bits in two flags values.
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fn difference(self, other: Self) -> Self

The intersection of a source flags value with the complement of a target flags value (&!). Read more
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fn symmetric_difference(self, other: Self) -> Self

The bitwise exclusive-or (^) of the bits in two flags values.
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fn complement(self) -> Self

The bitwise negation (!) of the bits in a flags value, truncating the result.
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impl FromIterator<ArchCapaMSRFlags> for ArchCapaMSRFlags

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fn from_iter<T: IntoIterator<Item = Self>>(iterator: T) -> Self

The bitwise or (|) of the bits in each flags value.

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impl IntoIterator for ArchCapaMSRFlags

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type Item = ArchCapaMSRFlags

The type of the elements being iterated over.
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type IntoIter = Iter<ArchCapaMSRFlags>

Which kind of iterator are we turning this into?
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fn into_iter(self) -> Self::IntoIter

Creates an iterator from a value. Read more
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impl LowerHex for ArchCapaMSRFlags

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

Formats the value using the given formatter. Read more
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impl Not for ArchCapaMSRFlags

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fn not(self) -> Self

The bitwise negation (!) of the bits in a flags value, truncating the result.

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type Output = ArchCapaMSRFlags

The resulting type after applying the ! operator.
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impl Octal for ArchCapaMSRFlags

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

Formats the value using the given formatter. Read more
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impl PublicFlags for ArchCapaMSRFlags

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type Primitive = u64

The type of the underlying storage.
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type Internal = InternalBitFlags

The type of the internal field on the generated flags type.
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impl Sub for ArchCapaMSRFlags

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fn sub(self, other: Self) -> Self

The intersection of a source flags value with the complement of a target flags value (&!).

This method is not equivalent to self & !other when other has unknown bits set. difference won’t truncate other, but the ! operator will.

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type Output = ArchCapaMSRFlags

The resulting type after applying the - operator.
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impl SubAssign for ArchCapaMSRFlags

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fn sub_assign(&mut self, other: Self)

The intersection of a source flags value with the complement of a target flags value (&!).

This method is not equivalent to self & !other when other has unknown bits set. difference won’t truncate other, but the ! operator will.

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impl UpperHex for ArchCapaMSRFlags

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

Formats the value using the given formatter. Read more

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