Gerd Hoffmann 638dfb4135 OvmfPkg/PciHotPlugInitDxe: fix io window size ... Smallest IO window size for PCI bridges is 0x1000. Fix default size accordingly. Avoids broken resource assignments like this: [ ... ] PciBus: Resource Map for Root Bridge PciRoot(0x0) Type = Io16; Base = 0x6000; Length = 0x7000; Alignment = 0xFFF [ ... ] Base = 0xC000; Length = 0x200; Alignment = 0xFFF; Owner = PPB [00|02|00:**] Base = 0xC200; Length = 0x40; Alignment = 0x3F; Owner = PCI [00|1F|03:20] Base = 0xC240; Length = 0x20; Alignment = 0x1F; Owner = PCI [00|1F|02:20] [ ... ] ... which the linux kernel fixes up later: [ 0.644657] pci 0000:00:1f.3: BAR 4: assigned [io 0x1000-0x103f] [ 0.646833] pci 0000:00:1f.2: BAR 4: assigned [io 0x1040-0x105f] With the patch applied: { ... ] PciBus: Resource Map for Root Bridge PciRoot(0x0) Type = Io16; Base = 0x6000; Length = 0x8000; Alignment = 0xFFF [ ... ] Base = 0xC000; Length = 0x1000; Alignment = 0xFFF; Owner = PPB [00|02|00:**] Base = 0xD000; Length = 0x40; Alignment = 0x3F; Owner = PCI [00|1F|03:20] Base = 0xD040; Length = 0x20; Alignment = 0x1F; Owner = PCI [00|1F|02:20] [ ... ] Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>		2023-06-26 11:08:31 +00:00
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PciHotPlugInit.c	OvmfPkg/PciHotPlugInitDxe: fix io window size	2023-06-26 11:08:31 +00:00
PciHotPlugInit.inf	OvmfPkg/PciHotPlugInitDxe: reserve more mmio space	2022-10-07 18:14:05 +00:00