On 6/5/07, Avi Kivity <[EMAIL PROTECTED]> wrote: > Luca Tettamanti wrote: > > Hello, > > I'm testing the new Fedora7 under KVM. As you may know Fedora has > > migrated to the new libata drivers. > > > > ata_piix is unhappy with the PIIX IDE controller provided by QEmu/KVM: > > > > > > > > [...] > > > The following patch fixes the problem (i.e. ata_piix finds both the HD > > and the cdrom): > > > > --- a/hw/ide.c 2007-06-04 19:34:25.000000000 +0200 > > +++ b/hw/ide.c 2007-06-04 21:45:28.000000000 +0200 > > @@ -2586,6 +2586,8 @@ static void piix3_reset(PCIIDEState *d) > > pci_conf[0x06] = 0x80; /* FBC */ > > pci_conf[0x07] = 0x02; // PCI_status_devsel_medium > > pci_conf[0x20] = 0x01; /* BMIBA: 20-23h */ > > + pci_conf[0x41] = 0x80; // enable port 0 > > + pci_conf[0x43] = 0x80; // enable port 1 > > } > > > > void pci_piix_ide_init(PCIBus *bus, BlockDriverState **hd_table, int devfn) > > > > I imagine the reset state in the spec is disabled?
Yes, you are right. Btw, this is the doc: http://www.intel.com/design/intarch/datashts/290550.htm > If so, then the > long-term fix is to enable these bits in the bios. Good point. I'm looking at bochs right now: the BIOS doesn't touch that bits. The 2 ports are enabled/disabled - using values from the config file - by the reset function of the emulated controller (iodev/pci_ide.cc), so they're doing the same thing I've done for QEMU. I'd rather not touch the BIOS, it's a bit obscure ;-) Luca ------------------------------------------------------------------------- This SF.net email is sponsored by DB2 Express Download DB2 Express C - the FREE version of DB2 express and take control of your XML. No limits. Just data. Click to get it now. http://sourceforge.net/powerbar/db2/ _______________________________________________ kvm-devel mailing list kvm-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/kvm-devel
