Re: [Xen-devel] [PATCH 00/25 v7] SBSA UART emulation support in Xen

2017-08-22 Thread Julien Grall
Hi, A quick update below. On 14/08/17 14:54, Julien Grall wrote: On 14/08/17 08:52, Bhupinder Thakur wrote: I could not reproduce the issue with the reduced buffer of 16 bytes also. I think it may not be reproducible on the foundation model. I am trying to bring up xen on an ARM machine here t

Re: [Xen-devel] [PATCH 00/25 v7] SBSA UART emulation support in Xen

2017-08-18 Thread Wei Liu
On Fri, Aug 18, 2017 at 02:30:03PM +0100, Julien Grall wrote: > Hi Wei, > > On 15/08/17 10:49, Wei Liu wrote: > > On Thu, Aug 10, 2017 at 06:51:24PM +0100, Julien Grall wrote: > > > > > > The interface between Xen and xenconsoled can be asynchronous, it > > > > > > can > > > > > > opt to queue X

Re: [Xen-devel] [PATCH 00/25 v7] SBSA UART emulation support in Xen

2017-08-18 Thread Julien Grall
Hi Wei, On 15/08/17 10:49, Wei Liu wrote: On Thu, Aug 10, 2017 at 06:51:24PM +0100, Julien Grall wrote: The interface between Xen and xenconsoled can be asynchronous, it can opt to queue X characters before sending an event, also setup a oneshot timer to avoid hanging. This however has some ot

Re: [Xen-devel] [PATCH 00/25 v7] SBSA UART emulation support in Xen

2017-08-15 Thread Wei Liu
On Thu, Aug 10, 2017 at 06:51:24PM +0100, Julien Grall wrote: > > > On 10/08/17 17:38, Wei Liu wrote: > > On Thu, Aug 10, 2017 at 05:11:52PM +0100, Julien Grall wrote: > > > > > > > > > On 10/08/17 17:00, Wei Liu wrote: > > > > On Thu, Aug 10, 2017 at 03:26:07PM +0100, Julien Grall wrote: > > >

Re: [Xen-devel] [PATCH 00/25 v7] SBSA UART emulation support in Xen

2017-08-14 Thread Julien Grall
On 14/08/17 08:52, Bhupinder Thakur wrote: Hi Julien, Hi Bhupinder, After that I tried to stress the emulation a bit with "find ." to get a lot of output. And I noticed a lot of message similar to the one below on xen console: d6v0 vpl011: Unexpected OUT ring buffer full Associated to

Re: [Xen-devel] [PATCH 00/25 v7] SBSA UART emulation support in Xen

2017-08-14 Thread Bhupinder Thakur
Hi Julien, >> After that I tried to stress the emulation a bit with "find ." to get a lot >> of output. And I noticed a lot of message similar to the one below on xen >> console: >> >> d6v0 vpl011: Unexpected OUT ring buffer full >> >> Associated to that the character have been eaten resulting to

Re: [Xen-devel] [PATCH 00/25 v7] SBSA UART emulation support in Xen

2017-08-10 Thread Julien Grall
On 10/08/17 17:38, Wei Liu wrote: On Thu, Aug 10, 2017 at 05:11:52PM +0100, Julien Grall wrote: On 10/08/17 17:00, Wei Liu wrote: On Thu, Aug 10, 2017 at 03:26:07PM +0100, Julien Grall wrote: On 09/08/17 11:58, Bhupinder Thakur wrote: Hi Julien, Hi Bhupinder, Thanks for the testing.

Re: [Xen-devel] [PATCH 00/25 v7] SBSA UART emulation support in Xen

2017-08-10 Thread Wei Liu
On Thu, Aug 10, 2017 at 05:11:52PM +0100, Julien Grall wrote: > > > On 10/08/17 17:00, Wei Liu wrote: > > On Thu, Aug 10, 2017 at 03:26:07PM +0100, Julien Grall wrote: > > > > > > > > > On 09/08/17 11:58, Bhupinder Thakur wrote: > > > > Hi Julien, > > > > > > Hi Bhupinder, > > > > > > > Thank

Re: [Xen-devel] [PATCH 00/25 v7] SBSA UART emulation support in Xen

2017-08-10 Thread Julien Grall
On 10/08/17 17:00, Wei Liu wrote: On Thu, Aug 10, 2017 at 03:26:07PM +0100, Julien Grall wrote: On 09/08/17 11:58, Bhupinder Thakur wrote: Hi Julien, Hi Bhupinder, Thanks for the testing. On 8 August 2017 at 21:29, Julien Grall wrote: Hi Bhupinder, I gave another and I have a couple

Re: [Xen-devel] [PATCH 00/25 v7] SBSA UART emulation support in Xen

2017-08-10 Thread Wei Liu
On Thu, Aug 10, 2017 at 03:26:07PM +0100, Julien Grall wrote: > > > On 09/08/17 11:58, Bhupinder Thakur wrote: > > Hi Julien, > > Hi Bhupinder, > > > Thanks for the testing. > > > > On 8 August 2017 at 21:29, Julien Grall wrote: > > > Hi Bhupinder, > > > > > > I gave another and I have a cou

Re: [Xen-devel] [PATCH 00/25 v7] SBSA UART emulation support in Xen

2017-08-10 Thread Wei Liu
On Thu, Aug 10, 2017 at 03:31:57PM +0100, Julien Grall wrote: > Hi, > > On 10/08/17 14:01, Wei Liu wrote: > > On Thu, Aug 10, 2017 at 01:40:07PM +0100, Julien Grall wrote: > > > Hi Wei, > > > > > > On 10/08/17 12:40, Wei Liu wrote: > > > > On Thu, Aug 10, 2017 at 01:29:04PM +0530, Bhupinder Thaku

Re: [Xen-devel] [PATCH 00/25 v7] SBSA UART emulation support in Xen

2017-08-10 Thread Julien Grall
Hi, On 10/08/17 14:01, Wei Liu wrote: On Thu, Aug 10, 2017 at 01:40:07PM +0100, Julien Grall wrote: Hi Wei, On 10/08/17 12:40, Wei Liu wrote: On Thu, Aug 10, 2017 at 01:29:04PM +0530, Bhupinder Thakur wrote: Hi Wei, On 9 August 2017 at 16:33, Wei Liu wrote: On Wed, Aug 09, 2017 at 04:28:1

Re: [Xen-devel] [PATCH 00/25 v7] SBSA UART emulation support in Xen

2017-08-10 Thread Julien Grall
On 09/08/17 11:58, Bhupinder Thakur wrote: Hi Julien, Hi Bhupinder, Thanks for the testing. On 8 August 2017 at 21:29, Julien Grall wrote: Hi Bhupinder, I gave another and I have a couple of comments. Booting Linux with earlycon enabled take quite a while. I can see the characters comi

Re: [Xen-devel] [PATCH 00/25 v7] SBSA UART emulation support in Xen

2017-08-10 Thread Wei Liu
On Thu, Aug 10, 2017 at 01:40:07PM +0100, Julien Grall wrote: > Hi Wei, > > On 10/08/17 12:40, Wei Liu wrote: > > On Thu, Aug 10, 2017 at 01:29:04PM +0530, Bhupinder Thakur wrote: > > > Hi Wei, > > > > > > On 9 August 2017 at 16:33, Wei Liu wrote: > > > > On Wed, Aug 09, 2017 at 04:28:14PM +0530

Re: [Xen-devel] [PATCH 00/25 v7] SBSA UART emulation support in Xen

2017-08-10 Thread Julien Grall
Hi Wei, On 10/08/17 12:40, Wei Liu wrote: On Thu, Aug 10, 2017 at 01:29:04PM +0530, Bhupinder Thakur wrote: Hi Wei, On 9 August 2017 at 16:33, Wei Liu wrote: On Wed, Aug 09, 2017 at 04:28:14PM +0530, Bhupinder Thakur wrote: Hi Julien, Thanks for the testing. On 8 August 2017 at 21:29, Jul

Re: [Xen-devel] [PATCH 00/25 v7] SBSA UART emulation support in Xen

2017-08-10 Thread Wei Liu
On Thu, Aug 10, 2017 at 01:29:04PM +0530, Bhupinder Thakur wrote: > Hi Wei, > > On 9 August 2017 at 16:33, Wei Liu wrote: > > On Wed, Aug 09, 2017 at 04:28:14PM +0530, Bhupinder Thakur wrote: > >> Hi Julien, > >> > >> Thanks for the testing. > >> > >> On 8 August 2017 at 21:29, Julien Grall wrot

Re: [Xen-devel] [PATCH 00/25 v7] SBSA UART emulation support in Xen

2017-08-10 Thread Bhupinder Thakur
Hi Wei, On 9 August 2017 at 16:33, Wei Liu wrote: > On Wed, Aug 09, 2017 at 04:28:14PM +0530, Bhupinder Thakur wrote: >> Hi Julien, >> >> Thanks for the testing. >> >> On 8 August 2017 at 21:29, Julien Grall wrote: >> > Hi Bhupinder, >> > >> > I gave another and I have a couple of comments. >> >

Re: [Xen-devel] [PATCH 00/25 v7] SBSA UART emulation support in Xen

2017-08-09 Thread Wei Liu
On Wed, Aug 09, 2017 at 04:28:14PM +0530, Bhupinder Thakur wrote: > Hi Julien, > > Thanks for the testing. > > On 8 August 2017 at 21:29, Julien Grall wrote: > > Hi Bhupinder, > > > > I gave another and I have a couple of comments. > > > > Booting Linux with earlycon enabled take quite a while.

Re: [Xen-devel] [PATCH 00/25 v7] SBSA UART emulation support in Xen

2017-08-09 Thread Bhupinder Thakur
Hi Julien, Thanks for the testing. On 8 August 2017 at 21:29, Julien Grall wrote: > Hi Bhupinder, > > I gave another and I have a couple of comments. > > Booting Linux with earlycon enabled take quite a while. I can see the > characters coming slower than on the minitel. It seems to be a bit bet

Re: [Xen-devel] [PATCH 00/25 v7] SBSA UART emulation support in Xen

2017-08-08 Thread Julien Grall
Hi Bhupinder, I gave another and I have a couple of comments. Booting Linux with earlycon enabled take quite a while. I can see the characters coming slower than on the minitel. It seems to be a bit better after switching off the bootconsole. Overall Linux is taking ~20 times to boot with pl0

[Xen-devel] [PATCH 00/25 v7] SBSA UART emulation support in Xen

2017-08-07 Thread Bhupinder Thakur
SBSA UART emulation for guests in Xen == Linaro has published VM System specification for ARM Processors, which provides a set of guidelines for both guest OS and hypervisor implementations, such that building OS images according to these guidelines guarantees t