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Re: [Qemu-devel] [PATCH 7/7] PPC64: Don't fault at lwsync
From: |
Daniel Jacobowitz |
Subject: |
Re: [Qemu-devel] [PATCH 7/7] PPC64: Don't fault at lwsync |
Date: |
Thu, 5 Mar 2009 14:42:22 -0500 |
User-agent: |
Mutt/1.5.17 (2008-05-11) |
On Thu, Mar 05, 2009 at 04:44:30PM +0000, Paul Brook wrote:
> When an MMU exception occurs, qemu figures out the guest location from the
> location of the MMU access in guest code (see cpu_restore_state). My guess is
> that this breaks when two guest instructions have the same location. I'm not
> entirely sure what the correct fix is, or where the bug lies
> (cpu_restore_state, gen_intermediate_code_pc, or tcg_gen_code_search_pc) but
> hopefully this will point you in the right direction.
Automatically pick the second instruction, on the principle that an
instruction with no opcodes is unlikely to trigger a synchronous
fault?
--
Daniel Jacobowitz
CodeSourcery
- [Qemu-devel] [PATCH 3/7] PPC64: Implment tlbiel, (continued)
- [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, 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, 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 <=
- 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