Re: [RFC PATCH 0/7] linux-user: Streamline handling of SIGSEGV/SIGBUS

[Richard Henderson]

On 9/13/21 3:05 PM, Richard Henderson wrote:
> All of the really tcg-specific portions are still in user-exec.c,
> and all of the really host-specific portions are now ditributed
> across linux-user/host/<arch>/.  Importantly, SEGV_MAPERR and
> SEGV_ACCERR are now passed through from the host kernel -- or at
> least there's a single place from which to manage it [1].

Hum.  And then there's the special case of s390x, where the hw does not provide the exact 
address on faults, but only the page.  We have code for that in cpu_loop, but I have to 
invent some new hook in this new scheme.


r~