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[Qemu-devel] Re: [PATCH v4 05/15] pci/bridge: fix pci_bridge_reset()
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From: |
Isaku Yamahata |
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Subject: |
[Qemu-devel] Re: [PATCH v4 05/15] pci/bridge: fix pci_bridge_reset() |
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Date: |
Mon, 18 Oct 2010 16:44:56 +0900 |
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User-agent: |
Mutt/1.5.19 (2009-01-05) |
On Mon, Oct 18, 2010 at 09:08:09AM +0200, Michael S. Tsirkin wrote:
> > The spec says the lower bits are read-only and they have its meaning.
>
> Yes. but my question is why even touch io base/io limit at all
> in this function?
> It looks like guest can not rely on these being 0 after reset.
Oh, now I'm seeing your point.
Then, I'll drop those lines and don't touch those registers
on reset at all.
--
yamahata
- [Qemu-devel] [PATCH v4 01/15] pci: make pci_del_capability() update for w1cmask, (continued)
- [Qemu-devel] [PATCH v4 01/15] pci: make pci_del_capability() update for w1cmask, Isaku Yamahata, 2010/10/17
- [Qemu-devel] [PATCH v4 08/15] pcie: helper functions for pcie capability and extended capability, Isaku Yamahata, 2010/10/17
- [Qemu-devel] [PATCH v4 15/15] pcie/aer: glue aer error injection into qemu monitor, Isaku Yamahata, 2010/10/17
- [Qemu-devel] [PATCH v4 14/15] pcie/hotplug: introduce pushing attention button command, Isaku Yamahata, 2010/10/17
- [Qemu-devel] [PATCH v4 05/15] pci/bridge: fix pci_bridge_reset(), Isaku Yamahata, 2010/10/17
[Qemu-devel] [PATCH v4 02/15] pci: introduce helper functions to clear/set bits in configuration space, Isaku Yamahata, 2010/10/17
[Qemu-devel] [PATCH v4 07/15] pcie: add pcie constants to pcie_regs.h, Isaku Yamahata, 2010/10/17
[Qemu-devel] [PATCH v4 11/15] ioh3420: pcie root port in X58 ioh, Isaku Yamahata, 2010/10/17
[Qemu-devel] [PATCH v4 04/15] pci: record which is written into pci configuration space, Isaku Yamahata, 2010/10/17
[Qemu-devel] [PATCH v4 13/15] x3130: pcie downstream port, Isaku Yamahata, 2010/10/17