On 9/22/20 11:04 AM, Paolo Bonzini wrote: > On 22/09/20 10:41, Philippe Mathieu-Daudé wrote: >>> Besides looking more correct in access mode, is there any side effect >>> of WO mapping? >> TBH I don't have enough knowledge to answer this question. >> I tested successfully on X86. I'm writing more tests. > > No problem with doing this, but PROT_WRITE does not work at all on x86. > :) PROT_EXEC works if you have a machine with PKRU, but PROT_WRITE > silently becomes PROT_READ|PROT_WRITE because the processor does not > support it.
Ah this is why it works the same way in my testing. I'll run tests on ARM. Thanks, Phil. > > Paolo >
