On 26.01.2023 21:27, Andrew Cooper wrote:
> On 26/01/2023 8:02 am, Jan Beulich wrote:
>> On 25.01.2023 22:10, Andrew Cooper wrote:
>>> On 25/01/2023 3:25 pm, Jan Beulich wrote:
In order to be able to defer the context switch IBPB to the last
possible point, add logic to the exit-to-guest
On 26/01/2023 8:02 am, Jan Beulich wrote:
> On 25.01.2023 22:10, Andrew Cooper wrote:
>> On 25/01/2023 3:25 pm, Jan Beulich wrote:
>>> In order to be able to defer the context switch IBPB to the last
>>> possible point, add logic to the exit-to-guest paths to issue the
>>> barrier there, including
On 25.01.2023 22:10, Andrew Cooper wrote:
> On 25/01/2023 3:25 pm, Jan Beulich wrote:
>> In order to be able to defer the context switch IBPB to the last
>> possible point, add logic to the exit-to-guest paths to issue the
>> barrier there, including the "IBPB doesn't flush the RSB/RAS"
>>
On 25/01/2023 3:25 pm, Jan Beulich wrote:
> In order to be able to defer the context switch IBPB to the last
> possible point, add logic to the exit-to-guest paths to issue the
> barrier there, including the "IBPB doesn't flush the RSB/RAS"
> workaround. Since alternatives, for now at least, can't
In order to be able to defer the context switch IBPB to the last
possible point, add logic to the exit-to-guest paths to issue the
barrier there, including the "IBPB doesn't flush the RSB/RAS"
workaround. Since alternatives, for now at least, can't nest, emit JMP
to skip past both constructs where
