On Mon, Oct 31, 2022 at 04:58:38PM -0500, Kalra, Ashish wrote:
> if (snp_lookup_rmpentry(pfn, &rmp_level)) {
> do_sigbus(regs, error_code, address, VM_FAULT_SIGBUS);
> return RMP_PF_RETRY;
Does this issue some halfway understandable error message why the
process got killed?
> Will look at adding our own recovery function for the same, but that will
> again mark the pages as poisoned, right ?
Well, not poisoned but PG_offlimits or whatever the mm folks agree upon.
Semantically, it'll be handled the same way, ofc.
> Still waiting for some/more feedback from mm folks on the same.
Just send the patch and they'll give it.
Thx.
--
Regards/Gruss,
Boris.
https://people.kernel.org/tglx/notes-about-netiquette
