Re: [PATCH 07/10] xen/physinfo: add arm SVE arch capability and vector length

2023-03-01 Thread Stefano Stabellini
On Thu, 23 Feb 2023, Bertrand Marquis wrote: > Hi Jan, > > > On 13 Feb 2023, at 09:36, Jan Beulich wrote: > > > > On 10.02.2023 16:54, Luca Fancellu wrote: > >>> On 2 Feb 2023, at 12:05, Jan Beulich wrote: > >>> On 02.02.2023 12:08, Luca Fancellu wrote: > (is hw_cap only for x86?) > >>> >

Re: [PATCH 07/10] xen/physinfo: add arm SVE arch capability and vector length

2023-02-23 Thread Bertrand Marquis
Hi Jan, > On 13 Feb 2023, at 09:36, Jan Beulich wrote: > > On 10.02.2023 16:54, Luca Fancellu wrote: >>> On 2 Feb 2023, at 12:05, Jan Beulich wrote: >>> On 02.02.2023 12:08, Luca Fancellu wrote: (is hw_cap only for x86?) >>> >>> I suppose it is, but I also expect it would better go away t

Re: [PATCH 07/10] xen/physinfo: add arm SVE arch capability and vector length

2023-02-13 Thread Jan Beulich
On 10.02.2023 16:54, Luca Fancellu wrote: >> On 2 Feb 2023, at 12:05, Jan Beulich wrote: >> On 02.02.2023 12:08, Luca Fancellu wrote: >>> (is hw_cap only for x86?) >> >> I suppose it is, but I also expect it would better go away than be moved. >> It doesn't hold a complete set of information, and

Re: [PATCH 07/10] xen/physinfo: add arm SVE arch capability and vector length

2023-02-10 Thread Luca Fancellu
> On 2 Feb 2023, at 12:05, Jan Beulich wrote: > > On 02.02.2023 12:08, Luca Fancellu wrote: >> When the arm platform supports SVE, advertise the feature by a new >> flag for the arch_capabilities in struct xen_sysctl_physinfo and add >> a new field "arm_sve_vl_bits" where on arm there can be st

Re: [PATCH 07/10] xen/physinfo: add arm SVE arch capability and vector length

2023-02-02 Thread Jan Beulich
On 02.02.2023 12:08, Luca Fancellu wrote: > When the arm platform supports SVE, advertise the feature by a new > flag for the arch_capabilities in struct xen_sysctl_physinfo and add > a new field "arm_sve_vl_bits" where on arm there can be stored the > maximum SVE vector length in bits. > > Update

[PATCH 07/10] xen/physinfo: add arm SVE arch capability and vector length

2023-02-02 Thread Luca Fancellu
When the arm platform supports SVE, advertise the feature by a new flag for the arch_capabilities in struct xen_sysctl_physinfo and add a new field "arm_sve_vl_bits" where on arm there can be stored the maximum SVE vector length in bits. Update the padding. Bump XEN_SYSCTL_INTERFACE_VERSION for t