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Re: [PATCH v1 14/14] xen/riscv: add basic UART support
- To: Oleksii Kurochko <oleksii.kurochko@xxxxxxxxx>
- From: Jan Beulich <jbeulich@xxxxxxxx>
- Date: Tue, 15 Apr 2025 18:03:47 +0200
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- Cc: Alistair Francis <alistair.francis@xxxxxxx>, Bob Eshleman <bobbyeshleman@xxxxxxxxx>, Connor Davis <connojdavis@xxxxxxxxx>, Andrew Cooper <andrew.cooper3@xxxxxxxxxx>, Anthony PERARD <anthony.perard@xxxxxxxxxx>, Michal Orzel <michal.orzel@xxxxxxx>, Julien Grall <julien@xxxxxxx>, Roger Pau Monné <roger.pau@xxxxxxxxxx>, Stefano Stabellini <sstabellini@xxxxxxxxxx>, xen-devel@xxxxxxxxxxxxxxxxxxxx
- Delivery-date: Tue, 15 Apr 2025 16:04:03 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
On 08.04.2025 17:57, Oleksii Kurochko wrote:
> --- a/xen/arch/riscv/setup.c
> +++ b/xen/arch/riscv/setup.c
> @@ -4,11 +4,16 @@
> #include <xen/bug.h>
> #include <xen/bootfdt.h>
> #include <xen/compile.h>
> +#include <xen/console.h>
> #include <xen/device_tree.h>
> #include <xen/init.h>
> #include <xen/irq.h>
> +#include <xen/keyhandler.h>
Why's this one needed?
> #include <xen/mm.h>
> +#include <xen/percpu.h>
> +#include <xen/serial.h>
> #include <xen/shutdown.h>
> +#include <xen/timer.h>
> #include <xen/vmap.h>
> #include <xen/xvmalloc.h>
>
> @@ -73,6 +78,8 @@ void __init noreturn start_xen(unsigned long bootcpu_id,
>
> remove_identity_mapping();
>
> + percpu_init_areas();
I'll trust you that it's needed now, but the addition looks unrelated here,
and also isn't mentioned as intentional in the description.
> --- a/xen/drivers/char/Kconfig
> +++ b/xen/drivers/char/Kconfig
> @@ -3,7 +3,6 @@ config GENERIC_UART_INIT
>
> config HAS_NS16550
> bool "NS16550 UART driver" if ARM
> - default n if RISCV
> default y
Just to double-check: Unlike Arm you don't want this to be user-(un)selectable
on RISC-V?
Jan
|
