From 794798e36eda77802ce7cc7d7d6b1c65751e8a76 Mon Sep 17 00:00:00 2001 From: Anthony PERARD Date: Fri, 10 Jan 2014 15:56:33 +0000 Subject: xen_pt: Fix passthrough of device with ROM. QEMU does not need and should not allocate memory for the ROM of a passthrough PCI device. So this patch initialize the particular region like any other PCI BAR of a passthrough device. When a guest will access the ROM, Xen will take care of the IO, QEMU will not be involved in it. Xen set a limit of memory available for each guest, allocating memory for a ROM can hit this limit. Signed-off-by: Anthony PERARD Signed-off-by: Stefano Stabellini Reported-and-Tested-by: Konrad Rzeszutek Wilk --- hw/xen/xen_pt.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'hw/xen') diff --git a/hw/xen/xen_pt.c b/hw/xen/xen_pt.c index eee43541a4..be4220b415 100644 --- a/hw/xen/xen_pt.c +++ b/hw/xen/xen_pt.c @@ -440,8 +440,8 @@ static int xen_pt_register_regions(XenPCIPassthroughState *s) s->bases[PCI_ROM_SLOT].access.maddr = d->rom.base_addr; - memory_region_init_rom_device(&s->rom, OBJECT(s), NULL, NULL, - "xen-pci-pt-rom", d->rom.size); + memory_region_init_io(&s->rom, OBJECT(s), &ops, &s->dev, + "xen-pci-pt-rom", d->rom.size); pci_register_bar(&s->dev, PCI_ROM_SLOT, PCI_BASE_ADDRESS_MEM_PREFETCH, &s->rom); -- cgit v1.2.1