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RE: [PATCH v3 1/9] xen/arm: Print a 64-bit number in hex from early uart
- To: Julien Grall <julien@xxxxxxx>, "xen-devel@xxxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxxx>
- From: Wei Chen <Wei.Chen@xxxxxxx>
- Date: Tue, 17 May 2022 01:21:13 +0000
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- Cc: nd <nd@xxxxxxx>, Stefano Stabellini <sstabellini@xxxxxxxxxx>, Bertrand Marquis <Bertrand.Marquis@xxxxxxx>, Volodymyr Babchuk <Volodymyr_Babchuk@xxxxxxxx>, Jiamei Xie <Jiamei.Xie@xxxxxxx>, Julien Grall <jgrall@xxxxxxxxxx>
- Delivery-date: Tue, 17 May 2022 01:21:57 +0000
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- Thread-topic: [PATCH v3 1/9] xen/arm: Print a 64-bit number in hex from early uart
Hi Julien,
> -----Original Message-----
> From: Julien Grall <julien@xxxxxxx>
> Sent: 2022年5月17日 1:15
> To: Wei Chen <Wei.Chen@xxxxxxx>; xen-devel@xxxxxxxxxxxxxxxxxxxx
> Cc: nd <nd@xxxxxxx>; Stefano Stabellini <sstabellini@xxxxxxxxxx>; Bertrand
> Marquis <Bertrand.Marquis@xxxxxxx>; Volodymyr Babchuk
> <Volodymyr_Babchuk@xxxxxxxx>; Jiamei Xie <Jiamei.Xie@xxxxxxx>; Julien
> Grall <jgrall@xxxxxxxxxx>
> Subject: Re: [PATCH v3 1/9] xen/arm: Print a 64-bit number in hex from
> early uart
>
> Hi,
>
> On 11/05/2022 02:46, Wei Chen wrote:
> > Current putn function that is using for early print
> > only can print low 32-bit of AArch64 register. This
> > will lose some important messages while debugging
> > with early console. For example:
> > (XEN) Bringing up CPU5
> > - CPU 0000000100000100 booting -
> > Will be truncated to
> > (XEN) Bringing up CPU5
> > - CPU 00000100 booting -
> >
> > In this patch, we increased the print loops and shift
> > bits to make putn print 64-bit number.
> >
> > Signed-off-by: Wei Chen <wei.chen@xxxxxxx>
> > Tested-by: Jiamei Xie <jiamei.xie@xxxxxxx>
> > Acked-by: Julien Grall <jgrall@xxxxxxxxxx>
>
> I have committed this patch.
>
> Patch #3 looks to be suitably acked but I am not sure whether it can be
> committed before #2. So I didn't commit it.
>
No, it depends on patch#2 to provide EFI stubs for Arm32, otherwise
Arm32 will be failed on building.
Cheers,
Wei Chen
> Please let me know if it can be.
>
> Cheers,
>
> --
> Julien Grall
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