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Alejandro Vallejo
b59e564aa0
PVH guests have no DM, so this causes the guest to fetch the online CPU
bitmap from an unbacked 0xaf00 PIO port when executing the GPE handler.
Seeing how ACPI CPU hotplug is the only event delivered via GPE, remove
the GPE handler in addition to anything ACPI CPU hotplug related.
This shrinks PVH's DSDT substantially and prevents spuriously executing
a large amount of AML with no purpose at all.
Fixes: 062975dc9441("acpi: PVH guests need _E02 method")
Signed-off-by: Alejandro Vallejo <alejandro.garciavallejo@amd.com>
Reviewed-by: Jan Beulich <jbeulich@suse.com>
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