[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] [Query] Flow of PCI device dedicated to a domU
On Wed, Jul 16, 2014 at 3:20 PM, Andrew Cooper <andrew.cooper3@xxxxxxxxxx> wrote:
Linux kernel pci code has a function called __write_msi_msg. This method writes to config space for MSI/MSIX pci_write_config_dword(dev, pos + PCI_MSI_ADDRESS_LO, ÂÂÂ ÂÂÂ ÂÂÂ ÂÂÂ ÂÂÂÂÂÂ msg->address_lo); Now as per (b) and (c) it has to be trapped in xen. But in x86/traps.c (guest_io_write) I dont see any MSI handling. Can you please explain (point to the code) where domain is attempting to change the interrupt information. ÂÂÂ _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxx http://lists.xen.org/xen-devel
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