[Top][All Lists]
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: [Qemu-devel] [PATCH 7/7] PPC64: Don't fault at lwsync
From: |
Paul Brook |
Subject: |
Re: [Qemu-devel] [PATCH 7/7] PPC64: Don't fault at lwsync |
Date: |
Thu, 5 Mar 2009 15:07:29 +0000 |
User-agent: |
KMail/1.9.9 |
On Thursday 05 March 2009, Alexander Graf wrote:
> Right now we can throw a fault on lwsync, even though the fault is
> actually caused by the instruction after lwsync.
>
> I haven't found the magic that messed this up, but for now we can
> just end the TB on lwsync, forcing the next command to issue faults
> itself.
>
> If anyone knows how to really fix this, please step forward and do
> so. This only makes things work at all for me :-).
Where is the subsequent fault coming from? I suspect the real bug is nothing
to do with lwsync, and the subsequent fault is actually just corrupting the
CPU state. As discussed recently this is the same bug SPARC has with its
unassigned access handlers.
Paul
- [Qemu-devel] [PATCH 0/7] PPC64 Linux bringup patches v2, Alexander Graf, 2009/03/05
- [Qemu-devel] [PATCH 1/7] PPC64: Implement slbmte, Alexander Graf, 2009/03/05
- [Qemu-devel] [PATCH 2/7] PPC64: Implement large pages, Alexander Graf, 2009/03/05
- [Qemu-devel] [PATCH 3/7] PPC64: Implment tlbiel, Alexander Graf, 2009/03/05
- [Qemu-devel] [PATCH 4/7] Activate uninorth AGP bridge, Alexander Graf, 2009/03/05
- [Qemu-devel] [PATCH 5/7] PPC64: Nop some SPRs on 970fx, Alexander Graf, 2009/03/05
- [Qemu-devel] [PATCH 6/7] PPC64: Enable 64bit mode on interrupts, Alexander Graf, 2009/03/05
- [Qemu-devel] [PATCH 7/7] PPC64: Don't fault at lwsync, Alexander Graf, 2009/03/05
- Re: [Qemu-devel] [PATCH 7/7] PPC64: Don't fault at lwsync,
Paul Brook <=
- Re: [Qemu-devel] [PATCH 7/7] PPC64: Don't fault at lwsync, Alexander Graf, 2009/03/05
- Re: [Qemu-devel] [PATCH 7/7] PPC64: Don't fault at lwsync, Alexander Graf, 2009/03/05
- Re: [Qemu-devel] [PATCH 7/7] PPC64: Don't fault at lwsync, Paul Brook, 2009/03/05
- Re: [Qemu-devel] [PATCH 7/7] PPC64: Don't fault at lwsync, Paul Brook, 2009/03/05
- Re: [Qemu-devel] [PATCH 7/7] PPC64: Don't fault at lwsync, Daniel Jacobowitz, 2009/03/05
- Re: [Qemu-devel] [PATCH 7/7] PPC64: Don't fault at lwsync, Paul Brook, 2009/03/05
- Re: [Qemu-devel] [PATCH 7/7] PPC64: Don't fault at lwsync, Alexander Graf, 2009/03/05