search for: tp5037367p5042107

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2011 Dec 01
2
How does vmm get all mmio areas of pci devices?
Hi, any one help? I have puzzled by the question of device''s MMIO areas. I know a MMIO operation of guest os handled by VMM as follow steps: 1: Qemu-dm does its initialization and presents virtual devices for guest os. 2: virtual bios executes PCI_setup, it will scan the pci bus and get configure space of all devices,then virtual bios allocation system resources(like port I/O range,MMIO