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Re: [PATCH v3 04/24] xen/console: introduce console_{get,put}_domain()


  • To: dmukhin@xxxxxxxx
  • From: Jan Beulich <jbeulich@xxxxxxxx>
  • Date: Tue, 28 Jan 2025 11:51:26 +0100
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  • Cc: Stefano Stabellini <sstabellini@xxxxxxxxxx>, Julien Grall <julien@xxxxxxx>, Michal Orzel <michal.orzel@xxxxxxx>, Andrew Cooper <andrew.cooper3@xxxxxxxxxx>, Anthony PERARD <anthony.perard@xxxxxxxxxx>, Roger Pau Monné <roger.pau@xxxxxxxxxx>, xen-devel@xxxxxxxxxxxxxxxxxxxx
  • Delivery-date: Tue, 28 Jan 2025 10:51:31 +0000
  • List-id: Xen developer discussion <xen-devel.lists.xenproject.org>

On 04.01.2025 02:58, Denis Mukhin via B4 Relay wrote:
> @@ -529,14 +532,18 @@ static void switch_serial_input(void)
>  
>  static void __serial_rx(char c)
>  {
> +    struct domain *d;
>      int rc = 0;
>  
> -    switch ( console_rx )
> -    {
> -    case 0:
> +    if ( console_rx == 0 )
>          return handle_keypress(c, false);
>  
> -    case 1:
> +    d = console_get_domain();
> +    if ( !d )
> +        return;
> +
> +    if ( is_hardware_domain(d) )
> +    {
>          /*
>           * Deliver input to the hardware domain buffer, unless it is
>           * already full.

Isn't this a (desirable) functional change for late-hwdom, which runs with
domid different from 0? Such a bug-fix-like change wants calling out in the
description, I think.

Jan



 


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