docs/devel/loads-stores.rst

9 QEMU internally has multiple families of functions for performing
12 documentation of each API -- for that you should look at the
32  - (empty) : for 32 or 64 bit sizes
48 The ``_{endian}`` infix is omitted for target-endian accesses.
66 Regexes for git grep:
83 particular index might be necessary if, for instance, the helper
85 default access for the current state of the guest CPU.
88 (e.g. for an alignment fault or MMU fault) which will result in
119  - (empty) : for target endian, or 8 bit sizes
123 Regexes for git grep:
142  - (empty) : for 32 or 64 bit sizes
153  - (empty) : for target endian, or 8 bit sizes
157 Regexes for git grep:
171 should be enforced for the access.
180  - (empty) : for 32 or 64 bit sizes
191  - (empty) : for target endian, or 8 bit sizes
195 Regexes for git grep:
208 the right choice for calls made from hooks like the CPU ``do_interrupt``
209 hook or when you know for certain that the translator had to save all
219  - (empty) : for 32 or 64 bit sizes
230  - (empty) : for target endian, or 8 bit sizes
234 Regexes for git grep:
241 These functions perform a read for instruction execution.  The ``mmuidx``
251 plugins for tracing.
258  - (empty) : for 32 or 64 bit sizes
268 Regexes for git grep:
274 These functions are a wrapper for ``cpu_ld*_code`` which also perform
289  - (empty) : for 32 or 64 bit sizes
299 Regexes for git grep:
318  - (empty) : for 32 or 64 bit sizes
328 Regexes for git grep:
342 one AddressSpace (for instance Arm guest CPUs have an AddressSpace
343 for the Secure world and one for NonSecure if they implement TrustZone).
350 Functions are provided for doing byte-buffer reads and writes,
351 and also for doing one-data-item loads and stores.
368  - (empty) : for 32 or 64 bit sizes
383 The ``_{endian}`` suffix is omitted for byte accesses.
385 Regexes for git grep:
396 CPU to the ROM would be ignored. This is used for non-guest writes
403 Regexes for git grep:
411 ``MEMTXATTRS_UNSPECIFIED`` for the transaction attributes, and ignore
415 they should not be used in new code, unless you know for certain
424  - (empty) : for 32 or 64 bit sizes
439 The ``_{endian}_`` infix is omitted for byte accesses.
441 Regexes for git grep:
452 For new code they are better avoided:
454 * there is likely to be behaviour you need to model correctly for a
465 Regexes for git grep:
471 Access CPU memory by virtual address for debug purposes.
473 This function is intended for use by the GDB stub and similar code.
476 and then performs the access (using ``address_space_rw`` for
477 reads or ``cpu_physical_memory_write_rom`` for writes).
500 Regexes for git grep:
508 These functions are specifically for PCI device models which need to
511 correct address space for that device.
524  - (empty) : for 32 or 64 bit sizes
539 The ``_{endian}_`` infix is omitted for byte accesses.
541 Regexes for git grep: