diff options
| author | Ani Sinha | 2020-09-18 10:41:08 +0200 |
|---|---|---|
| committer | Michael S. Tsirkin | 2020-09-29 09:06:12 +0200 |
| commit | df4008c9c597634833bc0ae38e09ce49a51747d5 (patch) | |
| tree | 722202791d43cc229e90b477be50ee354c60ba08 /hw/acpi | |
| parent | Add ACPI DSDT tables for q35 that are being updated by the next patch (diff) | |
| download | qemu-df4008c9c597634833bc0ae38e09ce49a51747d5.tar.gz qemu-df4008c9c597634833bc0ae38e09ce49a51747d5.tar.xz qemu-df4008c9c597634833bc0ae38e09ce49a51747d5.zip | |
piix4: don't reserve hw resources when hotplug is off globally
When acpi hotplug is turned off for both root pci bus as well as for pci
bridges, we should not generate the related ACPI code for DSDT table or
initialize related hw ports or reserve hw resources. This change makes
sure all those operations are turned off in the case ACPI pci hotplug is
off globally.
In this change, we also make sure ACPI code for the PCNT method are only
added when bsel is enabled for the corresponding pci bus or bridge hotplug
is turned on.
As q35 machines do not use bsel for it's pci buses at this point in time, this
change affects DSDT acpi table for q35 machines as well. Therefore, we will
also need to commit the updated golden master DSDT table acpi binary blobs as
well. Following is the list of blobs which needs updating:
tests/data/acpi/q35/DSDT
tests/data/acpi/q35/DSDT.acpihmat
tests/data/acpi/q35/DSDT.bridge
tests/data/acpi/q35/DSDT.cphp
tests/data/acpi/q35/DSDT.dimmpxm
tests/data/acpi/q35/DSDT.ipmibt
tests/data/acpi/q35/DSDT.memhp
tests/data/acpi/q35/DSDT.mmio64
tests/data/acpi/q35/DSDT.numamem
tests/data/acpi/q35/DSDT.tis
These tables are updated in the following commit. Without the updated table
blobs, the unit tests would fail with this patch.
Signed-off-by: Ani Sinha <ani@anisinha.ca>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Message-Id: <20200918084111.15339-11-ani@anisinha.ca>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'hw/acpi')
| -rw-r--r-- | hw/acpi/piix4.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/hw/acpi/piix4.c b/hw/acpi/piix4.c index 832f8fba82..894d357f8c 100644 --- a/hw/acpi/piix4.c +++ b/hw/acpi/piix4.c @@ -596,8 +596,10 @@ static void piix4_acpi_system_hot_add_init(MemoryRegion *parent, "acpi-gpe0", GPE_LEN); memory_region_add_subregion(parent, GPE_BASE, &s->io_gpe); - acpi_pcihp_init(OBJECT(s), &s->acpi_pci_hotplug, bus, parent, - s->use_acpi_hotplug_bridge); + if (s->use_acpi_hotplug_bridge || s->use_acpi_root_pci_hotplug) { + acpi_pcihp_init(OBJECT(s), &s->acpi_pci_hotplug, bus, parent, + s->use_acpi_hotplug_bridge); + } s->cpu_hotplug_legacy = true; object_property_add_bool(OBJECT(s), "cpu-hotplug-legacy", |