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Re: [Qemu-devel] [PATCH 4/9] s390x: refactor error handling for SSCH and
From: |
Cornelia Huck |
Subject: |
Re: [Qemu-devel] [PATCH 4/9] s390x: refactor error handling for SSCH and RSCH |
Date: |
Fri, 8 Sep 2017 11:59:50 +0200 |
On Fri, 8 Sep 2017 11:21:57 +0200
Halil Pasic <address@hidden> wrote:
> On 09/08/2017 05:41 AM, Dong Jia Shi wrote:
> > Let' me summarize here, in case I misunderstand things. Now we have
> > two ways to choose:
> >
> > A. Kernel: no change.
> > Qemu : handle -EFAULT as option 2 by generating a program check.
> >
> > B. Kernel: return -EFAULT
> > +
> > update the IRB area in the I/O region for option 1 to present
> > a unit check SCSW (with proper sense byte ECW), and for option
> > 2 to present a program check.
> > Qemu : handle -EFAULT according to the information that the IRB area
> > provided.
>
> This is not what I was trying to say. You got my message regarding A, but
> B was supposed to be understood like this.
>
> Keep the current handling for option 1, that is return -EFAULT. For option
> 2 do what the spec says, execute the program until the bad address and then
> generate a program-check (SCSW) once the bad stuff has it's turn. Thus
> the only change in QEMU would be handling -EFAULT with an unit check (because
> now it's just option 1).
That makes sense to me.
- Re: [Qemu-devel] [PATCH 4/9] s390x: refactor error handling for SSCH and RSCH, (continued)
- Re: [Qemu-devel] [PATCH 4/9] s390x: refactor error handling for SSCH and RSCH, Halil Pasic, 2017/09/06
- Re: [Qemu-devel] [PATCH 4/9] s390x: refactor error handling for SSCH and RSCH, Cornelia Huck, 2017/09/06
- Re: [Qemu-devel] [PATCH 4/9] s390x: refactor error handling for SSCH and RSCH, Halil Pasic, 2017/09/06
- Re: [Qemu-devel] [PATCH 4/9] s390x: refactor error handling for SSCH and RSCH, Dong Jia Shi, 2017/09/07
- Re: [Qemu-devel] [PATCH 4/9] s390x: refactor error handling for SSCH and RSCH, Halil Pasic, 2017/09/07
- Re: [Qemu-devel] [PATCH 4/9] s390x: refactor error handling for SSCH and RSCH, Cornelia Huck, 2017/09/07
- Re: [Qemu-devel] [PATCH 4/9] s390x: refactor error handling for SSCH and RSCH, Halil Pasic, 2017/09/07
- Re: [Qemu-devel] [PATCH 4/9] s390x: refactor error handling for SSCH and RSCH, Cornelia Huck, 2017/09/07
- Re: [Qemu-devel] [PATCH 4/9] s390x: refactor error handling for SSCH and RSCH, Dong Jia Shi, 2017/09/07
- Re: [Qemu-devel] [PATCH 4/9] s390x: refactor error handling for SSCH and RSCH, Halil Pasic, 2017/09/08
- Re: [Qemu-devel] [PATCH 4/9] s390x: refactor error handling for SSCH and RSCH,
Cornelia Huck <=
- Re: [Qemu-devel] [PATCH 4/9] s390x: refactor error handling for SSCH and RSCH, Dong Jia Shi, 2017/09/25
- Re: [Qemu-devel] [PATCH 4/9] s390x: refactor error handling for SSCH and RSCH, Halil Pasic, 2017/09/25
- Re: [Qemu-devel] [PATCH 4/9] s390x: refactor error handling for SSCH and RSCH, Dong Jia Shi, 2017/09/27
- Re: [Qemu-devel] [PATCH 4/9] s390x: refactor error handling for SSCH and RSCH, Cornelia Huck, 2017/09/08
- Re: [Qemu-devel] [PATCH 4/9] s390x: refactor error handling for SSCH and RSCH, Dong Jia Shi, 2017/09/25