On 20.11.2020 10:48, Paul Durrant wrote: > From: Paul Durrant <pdurr...@amazon.com> > > If hvm_guest_x86_mode() returns something other than 8 or 4 then > viridian_hypercall() will return immediately but, on the way out, will write > back status as if 'mode' was 4. This patch simply makes it leave the registers > alone.
IOW 16-bit protected mode and real mode aren't allowed to make hypercalls (supported also be the earlier switch() in the function)? But then, to achieve what you want, wouldn't it be more direct to simply "return HVM_HCALL_completed;" straight from that earlier switch()'s default case? At which point the switch() you modify could become if/else? Anyway - you're the maintainer, I'm just wondering ... Jan
