On 21/12/2021 11:56 am, Jan Beulich wrote:
> On 16.12.2021 10:54, Andrew Cooper wrote:
>> @@ -42,4 +45,49 @@ static inline void wrpkru(uint32_t pkru)
>> :: "a" (pkru), "d" (0), "c" (0) );
>> }
>>
>> +/*
>> + * Xen does not use PKS.
>> + *
>> + * Guest kernel use is expected
On 16.12.2021 10:54, Andrew Cooper wrote:
> Under PKS, MSR_PKRS is available and based on the CPUID policy alone, and
> usable independently of CR4.PKS. See the large comment in prot-key.h for
> details of the context switching arrangement.
>
> Signed-off-by: Andrew Cooper
> ---
> CC: Jan
Under PKS, MSR_PKRS is available and based on the CPUID policy alone, and
usable independently of CR4.PKS. See the large comment in prot-key.h for
details of the context switching arrangement.
Signed-off-by: Andrew Cooper
---
CC: Jan Beulich
CC: Roger Pau Monné
CC: Wei Liu
CC: Kevin Tian
