Subject: [PATCH 23/24] hvc_xen: allow dom0_write_console for HVM guests

From: [email-masked] (Konrad Rzeszutek Wilk)
Date: Wed, 1 Aug 2012 10:54:13 -0400

On Thu, Jul 26, 2012 at 04:34:05PM +0100, Stefano Stabellini wrote:
> On ARM all guests are HVM guests, including Dom0.
> Allow dom0_write_console to be called by an HVM domain.

Um, but xen_hvm_domain() != xen_pv_domain() so won't this return without
printing anything?

> 
> Signed-off-by: Stefano Stabellini <[email-masked]>
> ---
>  drivers/tty/hvc/hvc_xen.c |    5 +----
>  1 files changed, 1 insertions(+), 4 deletions(-)
> 
> diff --git a/drivers/tty/hvc/hvc_xen.c b/drivers/tty/hvc/hvc_xen.c
> index 3c04fb8..949edc2 100644
> --- a/drivers/tty/hvc/hvc_xen.c
> +++ b/drivers/tty/hvc/hvc_xen.c
> @@ -616,12 +616,9 @@ static void xenboot_write_console(struct console *console, const char *string,
>  	unsigned int linelen, off = 0;
>  	const char *pos;
>  
> -	if (!xen_pv_domain())
> -		return;
> -
>  	dom0_write_console(0, string, len);
>  
> -	if (xen_initial_domain())
> +	if (!xen_pv_domain())
>  		return;
>  
>  	domU_write_console(0, "(early) ", 8);
> -- 
> 1.7.2.5