The first paragraph seems to have gone missing. Repeated below:
> This series adds a new "priv" virtual register that reports the current
> privilege mode. This is helpful for debugging purposes because that information
> is not actually available in any of the real CSRs.
On Mon, Oct 7, 2019 at 8:15 PM Jonathan Behrens <jonathan@fintelia.io> wrote:
>
> The third patch in this series makes the priv virtual register writitable. I'm
> not entirely sure this is a good idea, so I split it out into its own patch. In
> particular, this change will conflict with the hypervisor extension work which
> assumes that the privilege mode does not change in unexpected cases.
>
> As pointed out in a previous version of this series, GDB actually contains some
> support already for the accessing the privilege mode via a virtual "priv"
> register, including to convert the values into human readable forms:
>
> (gdb) info reg priv
> priv 0x3 prv:3 [Machine]
>
> Changlog V3:
> - Break patch into series
> - Make priv a virtual register
>
> Changelog V2:
> - Use PRV_H and PRV_S instead of integer literals
>
> Jonathan Behrens (3)
> target/riscv: Tell gdbstub the correct number of CSRs
> target/riscv: Expose priv register for GDB for reads
> target/riscv: Make the priv register writable by GDB
>
> configure | 4 ++--
> gdb-xml/riscv-32bit-virtual.xml | 11 +++++++++++
> gdb-xml/riscv-64bit-virtual.xml | 11 +++++++++++
> target/riscv/gdbstub.c | 36 ++++++++++++++++++++++++++++++++++--
> 4 files changed, 58 insertions(+), 4 deletions(-)
>
>