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From: Connor Davis <connojdavis@gmail.com>
To: Julien Grall <julien@xen.org>, xen-devel@lists.xenproject.org
Cc: "Andrew Cooper" <andrew.cooper3@citrix.com>,
	"George Dunlap" <george.dunlap@citrix.com>,
	"Ian Jackson" <iwj@xenproject.org>,
	"Jan Beulich" <jbeulich@suse.com>,
	"Stefano Stabellini" <sstabellini@kernel.org>,
	"Wei Liu" <wl@xen.org>, "Roger Pau Monné" <roger.pau@citrix.com>
Subject: Re: [PATCH] drivers/char: Add USB3 debug capability driver
Date: Mon, 17 May 2021 07:41:50 -0600	[thread overview]
Message-ID: <60cc20a9-03b1-214e-d3f2-6f383d10ac03@gmail.com> (raw)
In-Reply-To: <46931334-d4a8-eb89-0b81-727ff30c0ec0@xen.org>


On 5/17/21 3:36 AM, Julien Grall wrote:
> Hi Connor,
>
> On 12/05/2021 01:12, Connor Davis wrote:
>> +config XHCI_FIXMAP_PAGES
>> +        int "Number of fixmap entries to allocate for the xHC"
>> +    depends on HAS_XHCI_DBC
>> +        default 16
>> +        help
>> +          This should equal the size (in 4K pages) of the first 64-bit
>> +          BAR of the host controller in which the DbC is being used.
>
> Why can't you use the ioremap() for the new serial controller? Is this 
> going to be used by Xen very early?
>
> Cheers,
>
Yes it is used very early


Thanks,

Connor



      reply	other threads:[~2021-05-17 13:41 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-05-12  0:12 [PATCH] drivers/char: Add USB3 debug capability driver Connor Davis
2021-05-17  9:27 ` Jan Beulich
2021-05-17 13:40   ` Connor Davis
2021-05-17 13:47     ` Jan Beulich
2021-05-17  9:36 ` Julien Grall
2021-05-17 13:41   ` Connor Davis [this message]

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