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[Qemu-devel] questions about pci
From: |
WanPeng Li |
Subject: |
[Qemu-devel] questions about pci |
Date: |
Sun, 4 Mar 2012 20:33:40 +0800 |
User-agent: |
Mutt/1.5.21 (2010-09-15) |
Hi all:
I read pci code in qemu about i440fx, pci.c and so on. I think if guest
os whose mainboard is based on x86, it will use IO instructions to
access PCI configuration space.If not use passthrough, qemu should
emulate these operations.I find a function called kvm_handle_io who will
emulate ioport write/read, I have traced this function, but I haven't found it
has
any relationship with pci read/write configuration space functions like
i440fx_write_config and piix3_write_config.So how does it emulate pci
configuration space access when not use passthrough?
thanks
Wanpeng Li
LTC China, IBM
- [Qemu-devel] questions about pci,
WanPeng Li <=