Re: [RFC 2/2] target/riscv: rvv: improve performance of RISC-V vector loads and stores on large amounts of data.

[Richard Henderson]

On 9/10/24 04:20, Paolo Savini wrote:
> Thanks for the feedback Richard, I'm working on the endianness. Could you please give me 
> more details about the atomicity issues you are referring to?

For instance a 32-bit atomic memory operation in the guest must be implemented with a >= 
32-bit atomic memory operation in the host.

The main thing to remember is that memcpy() has no atomicity guarantee.  It could be 
implemented as a byte loop.  Thus you may only use memcpy with guest byte vectors.



r~