[PATCH v2 0/5] Add Svadu extension support

[Yong-Xuan Wang]

On Wed, Nov 15, 2023 at 12:46 AM Anup Patel <anup at brainfault.org> wrote:
>
> On Tue, Oct 24, 2023 at 3:42 PM Yong-Xuan Wang <yongxuan.wang at sifive.com> wrote:
> >
> > This series enables Svadu extension support by configuring the menvcfg
> > CSR and, if available, displays the Svadu extension in the boot log.
> >
> > Additionally, we've made some programming improvements in
> > lib/sbi/sbi_hart.c and lib/utils/fdt/fdt_helper.c.
> >
> > ---
> > v2:
> > - Rearrange the patches to do the code refactoring first before adding
> >   new features
> > - Suggested by Anup and Atish, detect extensions from DT instead of
> >   menvcfg CSR
> > - Enable access to some extensions through menvcfg CSR if they are
> >   present in the device tree.
> >
> > Yong-Xuan Wang (5):
> >   lib: sbi: Improve the code of privilege mode and extensions detection
> >   lib: sbi: Refactor the code for enable extensions in menvfg CSR
> >   lib: sbi: Using one array to define the name of extensions
> >   lib: sbi: Detect extensions from the ISA string in DT
> >   lib: sbi: Add support for Svadu extension
>
> For backward compatibility with existing OSes, it is better to have
> supervisor OS explicitly enable Svadu using the upcoming SBI
> FWFT extension instead of enabling it unconditionally whenever
> Svadu extension is available.
>
> Regards,
> Anup
>

Hi Anup,

Thank you! I'll remove the enablement of Svadu extension in the next version.

Regards,
Yong-Xuan

> >
> >  include/sbi/riscv_encoding.h |   6 +-
> >  include/sbi/sbi_hart.h       |  15 +++
> >  lib/sbi/sbi_hart.c           | 226 +++++++++++++----------------------
> >  lib/utils/fdt/fdt_helper.c   |   5 +-
> >  4 files changed, 104 insertions(+), 148 deletions(-)
> >
> > --
> > 2.17.1
> >
> >
> > --
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