On 03.02.2024 11:57, Carlo Nonato wrote:
> On Thu, Feb 1, 2024 at 1:59 PM Jan Beulich wrote:
>> On 29.01.2024 18:17, Carlo Nonato wrote:
>>> --- a/xen/arch/Kconfig
>>> +++ b/xen/arch/Kconfig
>>> @@ -31,3 +31,20 @@ config NR_NUMA_NODES
>>> associated with multiple-nodes management. It is
On 03.02.2024 11:57, Carlo Nonato wrote:
> On Wed, Jan 31, 2024 at 4:57 PM Jan Beulich wrote:
>> On 29.01.2024 18:17, Carlo Nonato wrote:
>>> +Background
>>> +**
>>> +
>>> +Cache hierarchy of a modern multi-core CPU typically has first levels
>>> dedicated
>>> +to each core (hence using
Hi Jan,
On Thu, Feb 1, 2024 at 1:18 PM Jan Beulich wrote:
>
> On 29.01.2024 18:17, Carlo Nonato wrote:
> > --- /dev/null
> > +++ b/docs/misc/cache-coloring.rst
> > @@ -0,0 +1,87 @@
> > +Xen cache coloring user guide
> > +=
> > +
> > +The cache coloring support in Xen
Hi Jan,
On Thu, Feb 1, 2024 at 1:59 PM Jan Beulich wrote:
>
> On 29.01.2024 18:17, Carlo Nonato wrote:
> > --- a/xen/arch/Kconfig
> > +++ b/xen/arch/Kconfig
> > @@ -31,3 +31,20 @@ config NR_NUMA_NODES
> > associated with multiple-nodes management. It is the upper bound of
> > the
Hi Jan,
On Wed, Jan 31, 2024 at 4:57 PM Jan Beulich wrote:
>
> On 29.01.2024 18:17, Carlo Nonato wrote:
> > Last Level Cache (LLC) coloring allows to partition the cache in smaller
> > chunks called cache colors. Since not all architectures can actually
> > implement it, add a HAS_LLC_COLORING
On 29.01.2024 18:17, Carlo Nonato wrote:
> --- a/xen/include/xen/sched.h
> +++ b/xen/include/xen/sched.h
> @@ -626,6 +626,11 @@ struct domain
>
> /* Holding CDF_* constant. Internal flags for domain creation. */
> unsigned int cdf;
> +
> +#ifdef CONFIG_LLC_COLORING
> +unsigned
On 29.01.2024 18:17, Carlo Nonato wrote:
> --- a/xen/arch/Kconfig
> +++ b/xen/arch/Kconfig
> @@ -31,3 +31,20 @@ config NR_NUMA_NODES
> associated with multiple-nodes management. It is the upper bound of
> the number of NUMA nodes that the scheduler, memory allocation and
>
On 29.01.2024 18:17, Carlo Nonato wrote:
> --- /dev/null
> +++ b/docs/misc/cache-coloring.rst
> @@ -0,0 +1,87 @@
> +Xen cache coloring user guide
> +=
> +
> +The cache coloring support in Xen allows to reserve Last Level Cache (LLC)
> +partitions for Dom0, DomUs and Xen
On 31.01.2024 16:57, Jan Beulich wrote:
> On 29.01.2024 18:17, Carlo Nonato wrote:
>> +Command line parameters
>> +***
>> +
>> +More specific documentation is available at
>> `docs/misc/xen-command-line.pandoc`.
>> +
>> ++--+---+
On 29.01.2024 18:17, Carlo Nonato wrote:
> Last Level Cache (LLC) coloring allows to partition the cache in smaller
> chunks called cache colors. Since not all architectures can actually
> implement it, add a HAS_LLC_COLORING Kconfig and put other options under
> xen/arch.
>
> LLC colors are a
Last Level Cache (LLC) coloring allows to partition the cache in smaller
chunks called cache colors. Since not all architectures can actually
implement it, add a HAS_LLC_COLORING Kconfig and put other options under
xen/arch.
LLC colors are a property of the domain, so the domain struct has to be
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