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 <jandr...@gmail.com> > --- > 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. Jan
