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Message-ID: <20240614143947.6384b673@p-imbrenda.boeblingen.de.ibm.com>
Date: Fri, 14 Jun 2024 14:39:47 +0200
From: Claudio Imbrenda <imbrenda@...ux.ibm.com>
To: Thomas Huth <thuth@...hat.com>
Cc: linux-doc@...r.kernel.org,
Christian Borntraeger
<borntraeger@...ux.ibm.com>,
Janosch Frank <frankja@...ux.ibm.com>,
Heiko
Carstens <hca@...ux.ibm.com>, Vasily Gorbik <gor@...ux.ibm.com>,
Alexander
Gordeev <agordeev@...ux.ibm.com>,
linux-s390@...r.kernel.org, linux-kernel@...r.kernel.org,
Jonathan Corbet <corbet@....net>, Sven
Schnelle <svens@...ux.ibm.com>
Subject: Re: [PATCH] Documentation: Add "S390" to the swiotlb kernel
parameter
On Fri, 14 Jun 2024 10:14:38 +0200
Thomas Huth <thuth@...hat.com> wrote:
> The "swiotlb" kernel parameter is used on s390 for protected virt since
> commit 64e1f0c531d1 ("s390/mm: force swiotlb for protected virtualization")
> and thus should be marked in kernel-parameters.txt accordingly.
>
> Signed-off-by: Thomas Huth <thuth@...hat.com>
Acked-by: Claudio Imbrenda <imbrenda@...ux.ibm.com>
> ---
> PS: I wonder whether we could remove IA-64 nowadays...?
>
> Documentation/admin-guide/kernel-parameters.txt | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
> index b600df82669d..423427bf6e49 100644
> --- a/Documentation/admin-guide/kernel-parameters.txt
> +++ b/Documentation/admin-guide/kernel-parameters.txt
> @@ -6548,7 +6548,7 @@
> This parameter controls use of the Protected
> Execution Facility on pSeries.
>
> - swiotlb= [ARM,IA-64,PPC,MIPS,X86,EARLY]
> + swiotlb= [ARM,IA-64,PPC,MIPS,X86,S390,EARLY]
> Format: { <int> [,<int>] | force | noforce }
> <int> -- Number of I/O TLB slabs
> <int> -- Second integer after comma. Number of swiotlb
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