Struct x86_64::structures::idt::PageFaultErrorCode [−][src]
#[repr(transparent)]pub struct PageFaultErrorCode { /* fields omitted */ }
Expand description
Describes an page fault error code.
This structure is defined by the following manual sections:
- AMD Volume 2: 8.4.2
- Intel Volume 3A: 4.7
Implementations
If this flag is set, the page fault was caused by a page-protection violation, else the page fault was caused by a not-present page.
If this flag is set, the memory access that caused the page fault was a write. Else the access that caused the page fault is a memory read. This bit does not necessarily indicate the cause of the page fault was a read or write violation.
If this flag is set, an access in user mode (CPL=3) caused the page fault. Else an access in supervisor mode (CPL=0, 1, or 2) caused the page fault. This bit does not necessarily indicate the cause of the page fault was a privilege violation.
If this flag is set, the page fault is a result of the processor reading a 1 from a reserved field within a page-translation-table entry.
If this flag is set, it indicates that the access that caused the page fault was an instruction fetch.
If this flag is set, it indicates that the page fault was caused by a protection key.
If this flag is set, it indicates that the page fault was caused by a shadow stack access.
If this flag is set, it indicates that the page fault was caused by SGX access-control requirements (Intel-only).
If this flag is set, it indicates that the page fault is a result of the processor encountering an RMP violation (AMD-only).
Convert from underlying bit representation, unless that representation contains bits that do not correspond to a flag.
Convert from underlying bit representation, dropping any bits that do not correspond to flags.
Convert from underlying bit representation, preserving all bits (even those not corresponding to a defined flag).
Safety
The caller of the bitflags!
macro can chose to allow or
disallow extra bits for their bitflags type.
The caller of from_bits_unchecked()
has to ensure that
all bits correspond to a defined flag or that extra bits
are valid for this bitflags type.
Returns true
if there are flags common to both self
and other
.
Returns true
if all of the flags in other
are contained within self
.
Inserts or removes the specified flags depending on the passed value.
Returns the intersection between the flags in self
and
other
.
Specifically, the returned set contains only the flags which are
present in both self
and other
.
This is equivalent to using the &
operator (e.g.
ops::BitAnd
), as in flags & other
.
Returns the union of between the flags in self
and other
.
Specifically, the returned set contains all flags which are
present in either self
or other
, including any which are
present in both (see Self::symmetric_difference
if that
is undesirable).
This is equivalent to using the |
operator (e.g.
ops::BitOr
), as in flags | other
.
Returns the difference between the flags in self
and other
.
Specifically, the returned set contains all flags present in
self
, except for the ones present in other
.
It is also conceptually equivalent to the “bit-clear” operation:
flags & !other
(and this syntax is also supported).
This is equivalent to using the -
operator (e.g.
ops::Sub
), as in flags - other
.
Returns the symmetric difference between the flags
in self
and other
.
Specifically, the returned set contains the flags present which
are present in self
or other
, but that are not present in
both. Equivalently, it contains the flags present in exactly
one of the sets self
and other
.
This is equivalent to using the ^
operator (e.g.
ops::BitXor
), as in flags ^ other
.
Returns the complement of this set of flags.
Specifically, the returned set contains all the flags which are
not set in self
, but which are allowed for this type.
Alternatively, it can be thought of as the set difference
between Self::all()
and self
(e.g. Self::all() - self
)
This is equivalent to using the !
operator (e.g.
ops::Not
), as in !flags
.
Trait Implementations
Disables all flags disabled in the set.
Returns the union of the two sets of flags.
type Output = Self
type Output = Self
The resulting type after applying the |
operator.
Adds the set of flags.
Toggles the set of flags.
Extends a collection with the contents of an iterator. Read more
extend_one
)Extends a collection with exactly one element.
extend_one
)Reserves capacity in a collection for the given number of additional elements. Read more
Creates a value from an iterator. Read more
This method tests for self
and other
values to be equal, and is used
by ==
. Read more
This method tests for !=
.
This method returns an ordering between self
and other
values if one exists. Read more
This method tests less than (for self
and other
) and is used by the <
operator. Read more
This method tests less than or equal to (for self
and other
) and is used by the <=
operator. Read more
This method tests greater than (for self
and other
) and is used by the >
operator. Read more
Disables all flags enabled in the set.