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Rename "XenSupport.c" to "ScanForRootBridges.c", after the main function
in it.
Update the file-top comments; refer to both Bhyve and Xen.
Cc: Anthony Perard <anthony.perard@citrix.com>
Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>
Cc: Jordan Justen <jordan.l.justen@intel.com>
Cc: Julien Grall <julien@xen.org>
Cc: Peter Grehan <grehan@freebsd.org>
Cc: Philippe Mathieu-Daudé <philmd@redhat.com>
Cc: Rebecca Cran <rebecca@bsdio.com>
Ref: https://bugzilla.tianocore.org/show_bug.cgi?id=2122
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Message-Id: <20210526201446.12554-36-lersek@redhat.com>
Reviewed-by: Ard Biesheuvel <ardb@kernel.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
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The "OvmfPkg/Library/PciHostBridgeLibScan/PciHostBridgeLibScan.inf"
instance is used in the following platforms in edk2:
OvmfPkg/Bhyve/BhyveX64.dsc
OvmfPkg/OvmfXen.dsc
Neither Bhyve nor Xen provide a Q35 board, therefore the expression
PcdGet16 (PcdOvmfHostBridgePciDevId) != INTEL_Q35_MCH_DEVICE_ID
always evaluates to TRUE, in the PciHostBridgeLibScan instance.
Replace the expression with constant TRUE, eliminating the PCD dependency.
(In effect, this reports that the root bridge being registered does not
support extended PCI config space.)
Cc: Anthony Perard <anthony.perard@citrix.com>
Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>
Cc: Jordan Justen <jordan.l.justen@intel.com>
Cc: Julien Grall <julien@xen.org>
Cc: Peter Grehan <grehan@freebsd.org>
Cc: Philippe Mathieu-Daudé <philmd@redhat.com>
Cc: Rebecca Cran <rebecca@bsdio.com>
Ref: https://bugzilla.tianocore.org/show_bug.cgi?id=2122
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Message-Id: <20210526201446.12554-35-lersek@redhat.com>
Reviewed-by: Ard Biesheuvel <ardb@kernel.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
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The "OvmfPkg/Library/PciHostBridgeLibScan/PciHostBridgeLibScan.inf"
instance is used in the following platforms in edk2:
OvmfPkg/Bhyve/BhyveX64.dsc
OvmfPkg/OvmfXen.dsc
Both platforms define "PcdPciDisableBusEnumeration" with Fixed-at-Build
access method, and TRUE value. Remove the PCD from the
PciHostBridgeLibScan instance, and everything else that is useful only
when the PCD is FALSE.
In practice, this removes the PciHostBridgeUtilityGetRootBridges()
function call, which is based on fw-cfg; see
"OvmfPkg/Library/PciHostBridgeUtilityLib/PciHostBridgeUtilityLib.c".
(Note that the dependency on PciHostBridgeUtilityLib remains in place,
given that the PciHostBridgeLibScan instance continues using lower-level
functions from the library that do not depend on fw-cfg.)
Cc: Anthony Perard <anthony.perard@citrix.com>
Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>
Cc: Jordan Justen <jordan.l.justen@intel.com>
Cc: Julien Grall <julien@xen.org>
Cc: Peter Grehan <grehan@freebsd.org>
Cc: Philippe Mathieu-Daudé <philmd@redhat.com>
Cc: Rebecca Cran <rebecca@bsdio.com>
Ref: https://bugzilla.tianocore.org/show_bug.cgi?id=2122
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Message-Id: <20210526201446.12554-34-lersek@redhat.com>
Reviewed-by: Ard Biesheuvel <ardb@kernel.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
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Create an almost verbatim copy of the
"OvmfPkg/Library/PciHostBridgeLib/PciHostBridgeLib.inf" library instance.
The new PciHostBridgeLibScan instance will ultimately duplicate a
negligible amount of code from the original, and will be used by the Bhyve
and OvmfXen platforms.
List the new driver in "Maintainers.txt", in the "OvmfPkg: bhyve-related
modules" and "OvmfPkg: Xen-related modules" sections.
This patch should be reviewed with "git show --find-copies-harder".
Cc: Anthony Perard <anthony.perard@citrix.com>
Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>
Cc: Jordan Justen <jordan.l.justen@intel.com>
Cc: Julien Grall <julien@xen.org>
Cc: Peter Grehan <grehan@freebsd.org>
Cc: Philippe Mathieu-Daudé <philmd@redhat.com>
Cc: Rebecca Cran <rebecca@bsdio.com>
Ref: https://bugzilla.tianocore.org/show_bug.cgi?id=2122
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Message-Id: <20210526201446.12554-30-lersek@redhat.com>
Reviewed-by: Ard Biesheuvel <ardb@kernel.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
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