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From: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
To: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Cc: xen-devel@lists.xensource.com, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] xen pvhvm: do not remap pirqs onto evtchns if !xen_have_vector_callback
Date: Tue, 31 Jan 2012 11:27:59 -0500	[thread overview]
Message-ID: <20120131162759.GA18248@phenom.dumpdata.com> (raw)
In-Reply-To: <alpine.DEB.2.00.1201301429530.3196@kaball-desktop>

On Mon, Jan 30, 2012 at 02:31:46PM +0000, Stefano Stabellini wrote:
> 
> Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>

So the xen_have_vector_callback looks to be only set by

1398         if (xen_feature(XENFEAT_hvm_callback_vector))
1399                 xen_have_vector_callback = 1;

So could this be just done via a check for that instead?


> 
> diff --git a/arch/x86/pci/xen.c b/arch/x86/pci/xen.c
> index 492ade8..d99346e 100644
> --- a/arch/x86/pci/xen.c
> +++ b/arch/x86/pci/xen.c
> @@ -374,7 +374,7 @@ int __init pci_xen_init(void)
>  
>  int __init pci_xen_hvm_init(void)
>  {
> -	if (!xen_feature(XENFEAT_hvm_pirqs))
> +	if (!xen_have_vector_callback || !xen_feature(XENFEAT_hvm_pirqs))
>  		return 0;
>  
>  #ifdef CONFIG_ACPI
> --
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  reply	other threads:[~2012-01-31 16:30 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-01-30 14:31 [PATCH] xen pvhvm: do not remap pirqs onto evtchns if !xen_have_vector_callback Stefano Stabellini
2012-01-30 14:31 ` Stefano Stabellini
2012-01-31 16:27 ` Konrad Rzeszutek Wilk [this message]
2012-01-31 16:40   ` Stefano Stabellini
2012-02-01  1:08     ` [Xen-devel] " Konrad Rzeszutek Wilk
2012-02-01 11:09       ` Stefano Stabellini

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