From e06a4cd134064590aa1a855ff4b973023279e805 Mon Sep 17 00:00:00 2001 From: jljusten Date: Mon, 8 Oct 2012 07:33:37 +0000 Subject: [PATCH] OvmfPkg: QemuBootOrder: recognize virtio-blk OFW device paths Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Laszlo Ersek Reviewed-by: Jordan Justen git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@13801 6f19259b-4bc3-4df7-8a09-765794883524 --- .../Library/PlatformBdsLib/QemuBootOrder.c | 26 +++++++++++++++++++ 1 file changed, 26 insertions(+) diff --git a/OvmfPkg/Library/PlatformBdsLib/QemuBootOrder.c b/OvmfPkg/Library/PlatformBdsLib/QemuBootOrder.c index 4a33396512..9807039f2f 100644 --- a/OvmfPkg/Library/PlatformBdsLib/QemuBootOrder.c +++ b/OvmfPkg/Library/PlatformBdsLib/QemuBootOrder.c @@ -606,6 +606,32 @@ TranslateOfwNodes ( PciDevFun[1], AcpiUid ); + } else if (NumNodes >= 3 && + SubstringEq (OfwNode[1].DriverName, "scsi") && + SubstringEq (OfwNode[2].DriverName, "disk") + ) { + // + // OpenFirmware device path (virtio-blk disk): + // + // /pci@i0cf8/scsi@6[,3]/disk@0,0 + // ^ ^ ^ ^ ^ + // | | | fixed + // | | PCI function corresponding to disk (optional) + // | PCI slot holding disk + // PCI root at system bus port, PIO + // + // UEFI device path prefix: + // + // PciRoot(0x0)/Pci(0x6,0x0)/HD( -- if PCI function is 0 or absent + // PciRoot(0x0)/Pci(0x6,0x3)/HD( -- if PCI function is present and nonzero + // + Written = UnicodeSPrintAsciiFormat ( + Translated, + *TranslatedSize * sizeof (*Translated), // BufferSize in bytes + "PciRoot(0x0)/Pci(0x%x,0x%x)/HD(", + PciDevFun[0], + PciDevFun[1] + ); } else { return RETURN_UNSUPPORTED; }