On 05/06/2023 8:50 am, Jan Beulich wrote:
> On 05.06.2023 09:48, Jan Beulich wrote:
>> On 02.06.2023 15:57, Andrew Cooper wrote:
>>> On 02/06/2023 10:56 am, Jan Beulich wrote:
On 01.06.2023 16:48, Andrew Cooper wrote:
> @@ -593,15 +596,85 @@ static bool __init retpoline_calculations(void)
On 05.06.2023 09:48, Jan Beulich wrote:
> On 02.06.2023 15:57, Andrew Cooper wrote:
>> On 02/06/2023 10:56 am, Jan Beulich wrote:
>>> On 01.06.2023 16:48, Andrew Cooper wrote:
@@ -593,15 +596,85 @@ static bool __init retpoline_calculations(void)
return false;
/*
On 02.06.2023 15:57, Andrew Cooper wrote:
> On 02/06/2023 10:56 am, Jan Beulich wrote:
>> On 01.06.2023 16:48, Andrew Cooper wrote:
>>> @@ -593,15 +596,85 @@ static bool __init retpoline_calculations(void)
>>> return false;
>>>
>>> /*
>>> - * RSBA may be set by a hypervisor to i
On 02/06/2023 10:56 am, Jan Beulich wrote:
> On 01.06.2023 16:48, Andrew Cooper wrote:
>> @@ -593,15 +596,85 @@ static bool __init retpoline_calculations(void)
>> return false;
>>
>> /*
>> - * RSBA may be set by a hypervisor to indicate that we may move to a
>> - * processor
On 01.06.2023 16:48, Andrew Cooper wrote:
> @@ -593,15 +596,85 @@ static bool __init retpoline_calculations(void)
> return false;
>
> /*
> - * RSBA may be set by a hypervisor to indicate that we may move to a
> - * processor which isn't retpoline-safe.
> + * The meaning
In order to level a VM safely for migration, the toolstack needs to know the
RSBA/RRSBA properties of the CPU, whether or not they happen to be enumerated.
See the code comment for details.
Signed-off-by: Andrew Cooper
---
CC: Jan Beulich
CC: Roger Pau Monné
CC: Wei Liu
v2:
* Rewrite almost
