Re: [Xen-devel] [PATCH 02/25 v6] xen/arm: vpl011: Add SBSA UART emulation in Xen

[Julien Grall <julien.grall@xxxxxxx>]

Hi Bhupinder,

On 17/07/17 14:06, Bhupinder Thakur wrote:
> Add emulation code to emulate read/write access to pl011 registers
> and pl011 interrupts:
>
>     - Emulate DR read/write by reading and writing from/to the IN
>       and OUT ring buffers and raising an event to the backend when
>       there is data in the OUT ring buffer and injecting an interrupt
>       to the guest when there is data in the IN ring buffer
>
>     - Other registers are related to interrupt management and
>       essentially control when interrupts are delivered to the guest
>
> This patch implements the SBSA Generic UART which is a subset of ARM
> PL011 UART.
>
> The SBSA Generic UART is covered in Appendix B of
> https://static.docs.arm.com/den0029/a/Server_Base_System_Architecture_v3_1_ARM_DEN_0029A.pdf
>
> Signed-off-by: Bhupinder Thakur <bhupinder.thakur@xxxxxxxxxx>
Acked-by: Julien Grall <julien.grall@xxxxxxx>

Cheers,

--
Julien Grall

_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxx
https://lists.xen.org/xen-devel