Re: [PATCH dovetail v7 00/11] riscv: Add dovetail support

Tobias Schaffner <[email protected]> writes:

> Hi all,
>
> this series introduces initial support for Dovetail on RISC-V.
>
> Feedback, suggestions, and especially reviews are very welcome.
>
> Changes since v1:
>  * Disable independent irq/softirq stack usage when pipelining
>  * Drop KVM changes as long as they can not be properly tested
>
> Changes since v2:
>  * Rework trap handling
>
> Changes since v3:
>  * Included the IRQ pipelining patches to have all riscv specific
>    patches included
>  * Rebased to dovetail/v6.18.y-dovetail-rebase
>  * Merged most of the fixes
>  * Fixed IRQ Stack handling and enabled IRQ_STACKS again
>
> Changes since v4:
>  * Rebased to dovetail/v7.0.y-dovetail-rebase
>  * Applied suggestions from the last patch set
>  * Added starfive-visionfive2 board support
>  * Introduced raw console device based on sbi debug console
>  * Reworked pipelined irq handling
>
> Changes since v5:
>  * Rebased to tip of dovetail/v7.0.y-dovetail-rebase
>  * Applied suggestions from the last patch set
>  * Use mark_trap_entry/exit_raw for kernel mode exception paths which
>    use irq_nmi_entry/exit for now, as the nmi irq handlers expect hard
>    irqs to stay off. This may be be subject to further optimization at
>    a later stage, but I do not see any negative impact latency wise in
>    my tests.
>
> Changes since v6:
> Address the review comments from the last patch set:
>  * Keep the virtual irq state in sync with the hard irq state in trap
>    handlers
>  * Fix irq_nesting imbalance when running with disabled IRQ_STACKS
>

Ok, this is ready for inclusion. We should target 7.2 since the 7.1-rc
series is already running.

-- 
Philippe.