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Igor Druzhinin
f9233b7804
DSDT for qemu-xen lacks _STA method of PCI slot object. If _STA method
doesn't exist then the slot is assumed to be always present and active
which in conjunction with _EJ0 method makes every device ejectable for
an OS even if it's not the case.
qemu-kvm is able to dynamically add _EJ0 method only to those slots
that either have hotpluggable devices or free for PCI passthrough.
As Xen lacks this capability we cannot use their way.
qemu-xen-traditional DSDT has _STA method which only reports that
the slot is present if there is a PCI devices hotplugged there.
This is done through querying of its PCI hotplug controller.
qemu-xen has similar capability that reports if device is "hotpluggable
or absent" which we can use to achieve the same result.
Signed-off-by: Igor Druzhinin <igor.druzhinin@citrix.com>
Reviewed-by: Jan Beulich <jbeulich@suse.com>
master commit: 6761965243
master date: 2019-05-24 10:30:21 +0200
ACPI builder for domain firmware BUILDING ACPI ----------------- Users of ACPI builder are expected to provide an include file that makes available the following: * strncpy * printf * NULL * test_bit * offsetof When compiling build.c, the name of this include file should be given to compiler as -DLIBACPI_STDUTILS=\"<filename>\". See tools/firmware/hvmloader/Makefile for an example. Note on DSDT Table ------------------ DSDT table source code is acpi_dsdt.asl It is already compiled and the output is acpi_dsdt.c Usually, user is not expected to change the acpi_dsdt.asl. In case that the acpi_dsdt.asl need to be updated, please Follow the instruction: # make acpi_dsdt.c Note: DSDT compiler "iasl" is needed. By default, it will be downloaded using wget in Makefile. if it failed, please download manually from http://developer.intel.com/technology/iapc/acpi/downloads.htm. then compile and install iasl