Queued in gitlab.com/danielhb/qemu/tree/ppc-next. Thanks,
Daniel
On 12/20/22 01:23, Nicholas Miehlbradt wrote:
> Implements the Dynamic Execution Control Register (DEXCR) and the
> Hypervisor Dynamic Execution Control Register (HDEXCR) in TCG as
> defined in Power ISA 3.1B. Only aspects 5 (Non-privileged hash instruction
> enable) and 6 (Privileged hash instruction enable) have architectural
> effects. Other aspects can be manipulated but have no effect on execution.
>
> Adds checks to these registers in the hashst and hashchk instructions so
> that they are executed as nops when not enabled.
>
> There is currently an RFC for the kernel interface for the DEXCR on the
> Linux PPC mailing list:
> https://lore.kernel.org/linuxppc-dev/20221128024458.46121-1-bgray@linux.ibm.com/
>
> v3:
> - Fix typos
>
> v2:
> - Clearing of upper 32 bits of userspace registers is now performed on
> register read rather than register write.
>
> Nicholas Miehlbradt (2):
> target/ppc: Implement the DEXCR and HDEXCR
> target/ppc: Check DEXCR on hash{st, chk} instructions
>
> target/ppc/cpu.h | 19 +++++++++++++
> target/ppc/cpu_init.c | 25 +++++++++++++++++
> target/ppc/excp_helper.c | 58 +++++++++++++++++++++++++++++-----------
> target/ppc/spr_common.h | 1 +
> target/ppc/translate.c | 19 +++++++++++++
> 5 files changed, 107 insertions(+), 15 deletions(-)
>