Re: [Qemu-devel] [PATCH v4 13/28] riscv: hart: Add a "hartid-base" property to RISC-V hart array

[Bin Meng]

Hi Alistair,

On Fri, Aug 23, 2019 at 6:44 AM Alistair Francis <address@hidden> wrote:
>
> On Sun, Aug 18, 2019 at 10:27 PM Bin Meng <address@hidden> wrote:
> >
> > At present each hart's hartid in a RISC-V hart array is assigned
> > the same value of its index in the hart array. But for a system
> > that has multiple hart arrays, this is not the case any more.
> >
> > Add a new "hartid-base" property so that hartid number can be
> > assigned based on the property value.
> >
> > Signed-off-by: Bin Meng <address@hidden>
>
> Why do we need this patch?
>

Without this patch, we cannot create two clusters that represent 1 E51
(hartid 0) and 4 U54 (hart id 1-4). Current codes will create 1 E51
(hartid 0) and 4 U54 (hartid 0-3)

Regards,
Bin