Re: [RFC 06/13] rust: add bindings for memattrs

[Paolo Bonzini]

Il ven 6 dic 2024, 05:59 Peter Maydell <peter.maydell@linaro.org> ha scritto:

> is still decently packed and simplifies things a lot.

The old struct is 4 bytes, and the new one is 8 bytes.

Yes, hence "decently" packed. But I think in both cases it's passed in registers, and for 64-bit machine that shouldn't change anything.

Paolo

We do
a lot of directly passing 'struct MemTxAttrs' arguments around
as arguments to functions (i.e. not passing pointers to them),
so increasing it in size is not completely free.

thanks
-- PMM