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Re: [Qemu-devel] [PATCH for-1.7 v2 0/8] fix address space size issue
From: |
Paolo Bonzini |
Subject: |
Re: [Qemu-devel] [PATCH for-1.7 v2 0/8] fix address space size issue |
Date: |
Thu, 07 Nov 2013 16:07:34 +0100 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/20130923 Thunderbird/17.0.9 |
Il 07/11/2013 16:05, Michael S. Tsirkin ha scritto:
>> > So, ack for patch 5-7-8, which should also be enough to fix the problem
>> > that Luiz reported.
> Not at all. As long as exec.c ignores high bits, any access
> there will end up in the wrong region.
... unless it happens to be the correct region because the whole
2^64-bit range is covered by a single region. This is what happens for
IOMMUs.
Paolo
> We might not get a crash but we'll get guest memory corruption.
- [Qemu-devel] [PATCH for-1.7 v2 5/8] pci: fix address space size for bridge, (continued)
- [Qemu-devel] [PATCH for-1.7 v2 5/8] pci: fix address space size for bridge, Marcel Apfelbaum, 2013/11/07
- [Qemu-devel] [PATCH for-1.7 v2 7/8] pc: s/INT64_MAX/UINT64_MAX/, Marcel Apfelbaum, 2013/11/07
- [Qemu-devel] [PATCH for-1.7 v2 8/8] spapr_pci: s/INT64_MAX/UINT64_MAX/, Marcel Apfelbaum, 2013/11/07
- [Qemu-devel] [PATCH for-1.7 v2 2/8] hw/alpha: limit iommu-typhoon memory size, Marcel Apfelbaum, 2013/11/07
- [Qemu-devel] [PATCH for-1.7 v2 6/8] exec: don't ignore high address bits on set, Marcel Apfelbaum, 2013/11/07
- Re: [Qemu-devel] [PATCH for-1.7 v2 0/8] fix address space size issue, Alexander Graf, 2013/11/07
- Re: [Qemu-devel] [PATCH for-1.7 v2 0/8] fix address space size issue, Paolo Bonzini, 2013/11/07