On Mon, Jul 18, 2022 at 10:18 AM Jan Beulich <[email protected]> wrote: > > On 18.07.2022 16:05, Jason Andryuk wrote: > > Let the hardware domain know about the hardware it is running on. This > > allows a linux Dom0 to know that it has the appropriate microcode via > > FB_CLEAR. /sys/devices/system/cpu/vulnerabilities/mmio_stale_data > > changes from: > > "Vulnerable: Clear CPU buffers attempted, no microcode; SMT Host state > > unknown" > > to: > > "Mitigation: Clear CPU buffers; SMT Host state unknown" > > > > Signed-off-by: Jason Andryuk <[email protected]> > > --- > > Should calculate_host_policy()'s arch_caps mask also be updated? They > > are not identical today, but I'm don't know this code to understand why > > they differ. > > I think this wants updating too, yes. I'm afraid I have to leave it to > Andrew to provide the reasons for the differences between the two. > > I would further suggest to also consider adding RRSBA and BHI_NO, even > if then the title would want adjusting. And finally I'd like to ask to > add a proper Fixes: tag (or more), as it looks like the updating here > was simply forgotten when the bits were introduced. Ideally we'd have > a way for the compiler to remind us of updates being needed (or at > least be considered) here.
That all sounds good. Thanks, Jason
