On Tue, Nov 09, 2010 at 03:55:00PM +0100, Jan Kiszka wrote:
> Am 09.11.2010 15:42, Michael S. Tsirkin wrote:
> > On Mon, Nov 08, 2010 at 12:25:47PM +0100, Jan Kiszka wrote:
> >> @@ -417,6 +423,17 @@ static void assigned_dev_pci_write_config(PCIDevice *d, uint32_t address,
> >>
> >> if (address == 0x4) {
> >> pci_default_write_config(d, address, val, len);
> >> + pci_dev->intx_masked = val & PCI_COMMAND_INTX_DISABLE;
> >> +#ifdef KVM_CAP_PCI_2_3
> >> + memset(&assigned_dev_data, 0, sizeof(assigned_dev_data));
> >> + assigned_dev_data.assigned_dev_id =
> >> + calc_assigned_dev_id(pci_dev->h_segnr, pci_dev->h_busnr,
> >> + pci_dev->h_devfn);
> >> + if (pci_dev->intx_masked) {
> >> + assigned_dev_data.flags = KVM_DEV_ASSIGN_MASK_INTX;
> >> + }
> >> + kvm_assign_set_intx_mask(kvm_context, &assigned_dev_data);
> >> +#endif
> >> /* Continue to program the card */
> >> }
> >>
> >> @@ -494,6 +511,10 @@ do_log:
> >> else if (address == 6)
> >> val &= ~0x10;
> >> }
> >> + if (address == PCI_COMMAND) {
> >
> > Could also be a single-byte write into the high byte
> > of this word.
>
> Yes, will fix.
>
> Jan
I think assigned devices call default write config, don't they?
If yes you can just check
pci_get_word(d->config + PCI_COMMAND) & PCI_COMMAND_INTX_DISABLE
> --
> Siemens AG, Corporate Technology, CT T DE IT 1
> Corporate Competence Center Embedded Linux
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