On 23.02.2022 13:33, Andrew Cooper wrote:
> On 23/02/2022 10:13, Jan Beulich wrote:
>> --- a/xen/arch/x86/cpu/common.c
>> +++ b/xen/arch/x86/cpu/common.c
>> @@ -346,9 +346,14 @@ void __init early_cpu_init(void)
>> c->x86_model, c->x86_model, c->x86_mask, eax);
>>
>> if (c->cpuid_
On 23/02/2022 10:13, Jan Beulich wrote:
> As noted in the context of 3330013e6739 ("VT-d / x86: re-arrange cache
> syncing"): While cache_writeback() has the SFENCE on the correct side of
> CLFLUSHOPT, flush_area_local() doesn't. While I can't prove it due to
> lacking a copy of the old SDM version
As noted in the context of 3330013e6739 ("VT-d / x86: re-arrange cache
syncing"): While cache_writeback() has the SFENCE on the correct side of
CLFLUSHOPT, flush_area_local() doesn't. While I can't prove it due to
lacking a copy of the old SDM version, I can only assume this placement
was a result
