audk/OvmfPkg/Library
Laszlo Ersek d796d33f18 OvmfPkg/QemuBootOrderLib: drop too strict "/HD(" suffix from vblk prefix
Translating QEMU's virtio-block OpenFirmware device path to a UEFI device
path prefix was one of the earliest case handled in QemuBootOrderLib. At
that time, I terminated the translation output (the UEFI devpath prefix)
with a "/HD(" suffix.

The intent was for the translation to prefix-match only boot options with
HD() device path nodes in them, that is, no auto-generated "device level"
boot options. This was motivated by prioritizing specific boot options
created by OS installers over auto-generated "device level" options.

However, practice has shown that:

- OS installers place their installed boot options first in the boot order
  anyway,

- other device types (SATA disks, virtio-scsi disks), where "/HD(" is not
  appended, work just fine,

- requiring "/HD(" actually causes problems: after the OS-installed
  specific boot option has been lost (or purposely removed), the
  auto-generated "device level" boot option does the right thing (see the
  Default Boot Behavior under
  <http://blog.uncooperative.org/blog/2014/02/06/the-efi-system-partition/>).
  The "/HD(" requirement causes such boot options to be dropped, which
  prevents "fallback.efi" from running.

Relax the matching by removing the "/HD(" suffix from the translated
prefix.

Cc: Jordan Justen <jordan.l.justen@intel.com>
Fixes: e06a4cd134
Ref: https://bugzilla.redhat.com/show_bug.cgi?id=1373812
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
2016-09-08 10:04:09 +02:00
..
AcpiTimerLib OvmfPkg: determine PMBA value dependent on host bridge device ID 2016-05-17 20:48:39 +02:00
DxePciLibI440FxQ35 OvmfPkg: add DxePciLibI440FxQ35 2016-03-10 21:28:29 +01:00
EmuVariableFvbLib OvmfPkg EMU FVB: Add 2 functions to PlatformFvbLib 2011-01-09 03:51:16 +00:00
LoadLinuxLib OvmfPkg: fix conversion specifiers in DEBUG format strings 2015-07-28 18:33:23 +00:00
LockBoxLib OvmfPkg: Install LockBox protocol in constructor of LockBoxDxeLib 2016-04-07 17:31:49 +02:00
NvVarsFileLib OvmfPkg: fix conversion specifiers in DEBUG format strings 2015-07-28 18:33:23 +00:00
PciHostBridgeLib OvmfPkg/PciHostBridgeLib: silence IA32 VS2015x86 warnings 2016-07-18 19:23:22 +02:00
PlatformBootManagerLib OvmfPkg/PlatformBootManagerLib: relax device class requirement for ConOut 2016-09-01 22:54:50 +02:00
PlatformDebugLibIoPort OvmfPkg: PlatformDebugLibIoPort: fix AsciiSPrint() format string 2015-08-06 10:13:33 +00:00
PlatformFvbLibNull OvmfPkg EMU FVB: Add 2 functions to PlatformFvbLib 2011-01-09 03:51:16 +00:00
PlatformSecureLib OvmfPkg: Add custom mode setup if the Secure Boot build option is specified. 2012-04-04 17:35:06 +00:00
QemuBootOrderLib OvmfPkg/QemuBootOrderLib: drop too strict "/HD(" suffix from vblk prefix 2016-09-08 10:04:09 +02:00
QemuFwCfgLib OvmfPkg: QemuFwCfgLib: avoid "variable set but not used" warning from GCC 2015-07-10 06:46:57 +00:00
ResetSystemLib OvmfPkg/ResetSystemLib: Implement ResetPlatformSpecific 2016-09-02 10:07:15 +08:00
SerializeVariablesLib OvmfPkg/SerializeVariablesLib: Relax check for the read-only variable 2016-05-26 13:21:36 +02:00
SmbiosVersionLib OvmfPkg: SmbiosVersionLib: recognize SMBIOS 3.x entry point 2015-08-06 10:14:12 +00:00
SmmCpuFeaturesLib OvmfPkg: SmmCpuFeaturesLib: customize state save map format 2015-11-30 18:46:42 +00:00
VirtioLib OvmfPkg: VirtioLib: add Virtio10WriteFeatures() function 2016-04-06 19:21:50 +02:00
VirtioMmioDeviceLib OvmfPkg: VIRTIO_DEVICE_PROTOCOL: pass VRING object to SetQueueAddress() 2016-04-06 13:04:03 +02:00
XenConsoleSerialPortLib OvmfPkg XenConsoleSerialPortLib: Implement Get(Set)Control/SetAttributes 2015-11-26 08:51:34 +00:00
XenHypercallLib OvfmPkg/XenHypercallLib: add missing GCC_ASM_EXPORT to XenHypercall2 2015-12-17 17:10:59 +00:00
XenIoMmioLib OvmfPkg/XenIoMmioLib: add missing MemoryAllocationLib dependency to INF 2016-04-13 17:26:06 +02:00