/mpu: introduce unified function
setup_early_uart to map early UART
On 01/02/2023 05:36, Penny Zheng wrote:
Hi Julien
Hi Penny,
Hi Julien,
[...]
xen_mpumap[3] : Xen read-write data
xen_mpumap[4] : Xen BSS
xen_mpumap[5] : Xen static heap
xen_mpumap[6] : Guest memory section
Why do
> -Original Message-
> From: Julien Grall
> Sent: Thursday, February 2, 2023 3:27 AM
> To: Penny Zheng ; xen-devel@lists.xenproject.org
> Cc: Wei Chen ; Stefano Stabellini
> ; Bertrand Marquis ;
> Volodymyr Babchuk
> Subject: Re: [PATCH v2 13/40] xen/mpu: in
: [PATCH v2 13/40] xen/mpu: introduce unified function
setup_early_uart to map early UART
Hi Penny,
On 31/01/2023 05:38, Penny Zheng wrote:
-Original Message-
From: Julien Grall
Sent: Monday, January 30, 2023 6:00 PM
To: Penny Zheng ; xen-
de...@lists.xenproject.org
Cc: Wei Chen ; Stefano
; xen-
> de...@lists.xenproject.org
> >> Cc: Wei Chen ; Stefano Stabellini
> >> ; Bertrand Marquis
> >> ; Volodymyr Babchuk
> >>
> >> Subject: Re: [PATCH v2 13/40] xen/mpu: introduce unified function
> >> setup_early_uart to map early UAR
Stabellini
; Bertrand Marquis
; Volodymyr Babchuk
Subject: Re: [PATCH v2 13/40] xen/mpu: introduce unified function
setup_early_uart to map early UART
Hi Penny,
On 29/01/2023 06:17, Penny Zheng wrote:
-Original Message-
From: Julien Grall
Sent: Wednesday, January 25, 2023 3:09 AM
To: Penny
:43 PM
> >> To: Penny Zheng ; xen-
> de...@lists.xenproject.org
> >> Cc: Wei Chen ; Stefano Stabellini
> >> ; Bertrand Marquis
> >> ; Volodymyr Babchuk
> >>
> >> Subject: Re: [PATCH v2 13/40] xen/mpu: introduce unified function
Stabellini
; Bertrand Marquis
; Volodymyr Babchuk
Subject: Re: [PATCH v2 13/40] xen/mpu: introduce unified function
setup_early_uart to map early UART
Hi Peny,
Hi Julien,
On 13/01/2023 05:28, Penny Zheng wrote:
In MMU system, we map the UART in the fixmap (when earlyprintk is
used).
However
Penny Zheng ; xen-
> de...@lists.xenproject.org
> >> Cc: Wei Chen ; Stefano Stabellini
> >> ; Bertrand Marquis
> >> ; Volodymyr Babchuk
> >>
> >> Subject: Re: [PATCH v2 13/40] xen/mpu: introduce unified function
> >> setup_early_uart to map early U
/mpu: introduce unified function
setup_early_uart to map early UART
Hi Peny,
Hi Julien,
On 13/01/2023 05:28, Penny Zheng wrote:
In MMU system, we map the UART in the fixmap (when earlyprintk is used).
However in MPU system, we map the UART with a transient MPU memory
region.
So we introduce
> -Original Message-
> From: Julien Grall
> Sent: Wednesday, January 25, 2023 3:09 AM
> To: Penny Zheng ; xen-devel@lists.xenproject.org
> Cc: Wei Chen ; Stefano Stabellini
> ; Bertrand Marquis ;
> Volodymyr Babchuk
> Subject: Re: [PATCH v2 13/40] xen/mpu: in
Hi Peny,
On 13/01/2023 05:28, Penny Zheng wrote:
In MMU system, we map the UART in the fixmap (when earlyprintk is used).
However in MPU system, we map the UART with a transient MPU memory
region.
So we introduce a new unified function setup_early_uart to replace
the previous setup_fixmap.
In MMU system, we map the UART in the fixmap (when earlyprintk is used).
However in MPU system, we map the UART with a transient MPU memory
region.
So we introduce a new unified function setup_early_uart to replace
the previous setup_fixmap.
Signed-off-by: Penny Zheng
Signed-off-by: Wei Chen
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