On 27.08.2024 16:59, Andrew Cooper wrote:
> On 27/08/2024 1:47 pm, Jan Beulich wrote:
>> On 27.08.2024 13:17, Andrew Cooper wrote:
>>> On 26/08/2024 2:07 pm, Jan Beulich wrote:
On 23.08.2024 01:06, Andrew Cooper wrote:
> @@ -475,4 +476,24 @@ static always_inline unsigned int arch_flsl(unsi
On 27/08/2024 1:47 pm, Jan Beulich wrote:
> On 27.08.2024 13:17, Andrew Cooper wrote:
>> On 26/08/2024 2:07 pm, Jan Beulich wrote:
>>> On 23.08.2024 01:06, Andrew Cooper wrote:
A few RFC points.
* I throught we had an x86 general lib-y but I can't find one, hence why
it's
On 27.08.2024 13:17, Andrew Cooper wrote:
> On 26/08/2024 2:07 pm, Jan Beulich wrote:
>> On 23.08.2024 01:06, Andrew Cooper wrote:
>>> A few RFC points.
>>>
>>> * I throught we had an x86 general lib-y but I can't find one, hence why
>>> it's
>>>still in xen/lib/ for now.
>> We indeed have no
On 26/08/2024 2:07 pm, Jan Beulich wrote:
> On 23.08.2024 01:06, Andrew Cooper wrote:
>> A few RFC points.
>>
>> * I throught we had an x86 general lib-y but I can't find one, hence why
>> it's
>>still in xen/lib/ for now.
> We indeed have nothing like that yet. The file name should then imo
On 23.08.2024 01:06, Andrew Cooper wrote:
> A few RFC points.
>
> * I throught we had an x86 general lib-y but I can't find one, hence why it's
>still in xen/lib/ for now.
We indeed have nothing like that yet. The file name should then imo not be
arch-* though, but x86-*. Or you could put it
On 23/08/2024 4:35 pm, Nicola Vetrini wrote:
> On 2024-08-23 01:06, Andrew Cooper wrote:
>> diff --git a/xen/lib/generic-hweightl.c b/xen/lib/generic-hweightl.c
>> index fa4bbec273ab..4b39dd84de5e 100644
>> --- a/xen/lib/generic-hweightl.c
>> +++ b/xen/lib/generic-hweightl.c
>> @@ -43,4 +43,19 @@ s
On 2024-08-23 01:06, Andrew Cooper wrote:
It has existed in x86 CPUs since 2008, so we're only 16 years late
adding
support. With all the other scafolding in place, implement
arch_hweightl()
for x86.
The only complication is that the call to arch_generic_hweightl() is
behind
the compilers ba
It has existed in x86 CPUs since 2008, so we're only 16 years late adding
support. With all the other scafolding in place, implement arch_hweightl()
for x86.
The only complication is that the call to arch_generic_hweightl() is behind
the compilers back. Address this by writing it in ASM and ensu
