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[RFC PATCH v4 1/7] hw/acpi/pcihp: Enhance acpi_pcihp_disable_root_bus()
From: |
Julia Suvorova |
Subject: |
[RFC PATCH v4 1/7] hw/acpi/pcihp: Enhance acpi_pcihp_disable_root_bus() to support Q35 |
Date: |
Thu, 13 May 2021 08:26:36 +0200 |
PCI Express does not allow hot-plug on pcie.0. Check for Q35 in
acpi_pcihp_disable_root_bus() to be able to forbid hot-plug using the
'acpi-root-pci-hotplug' flag.
Signed-off-by: Julia Suvorova <jusual@redhat.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
---
hw/acpi/pcihp.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/hw/acpi/pcihp.c b/hw/acpi/pcihp.c
index 4999277d57..09f531e941 100644
--- a/hw/acpi/pcihp.c
+++ b/hw/acpi/pcihp.c
@@ -122,13 +122,14 @@ static void acpi_set_pci_info(void)
static void acpi_pcihp_disable_root_bus(void)
{
static bool root_hp_disabled;
+ Object *host = acpi_get_i386_pci_host();
PCIBus *bus;
if (root_hp_disabled) {
return;
}
- bus = find_i440fx();
+ bus = PCI_HOST_BRIDGE(host)->bus;
if (bus) {
/* setting the hotplug handler to NULL makes the bus non-hotpluggable
*/
qbus_set_hotplug_handler(BUS(bus), NULL);
--
2.30.2
- [RFC PATCH v4 2/7] hw/i386/acpi-build: Add ACPI PCI hot-plug methods to Q35, (continued)
- [RFC PATCH v4 2/7] hw/i386/acpi-build: Add ACPI PCI hot-plug methods to Q35, Julia Suvorova, 2021/05/13
- [RFC PATCH v4 4/7] hw/pci/pcie: Do not set HPC flag if acpihp is used, Julia Suvorova, 2021/05/13
- [RFC PATCH v4 3/7] hw/acpi/ich9: Enable ACPI PCI hot-plug, Julia Suvorova, 2021/05/13
- [RFC PATCH v4 5/7] bios-tables-test: Allow changes in DSDT ACPI tables, Julia Suvorova, 2021/05/13
- [RFC PATCH v4 6/7] hw/acpi/ich9: Set ACPI PCI hot-plug as default on Q35, Julia Suvorova, 2021/05/13
- [RFC PATCH v4 7/7] bios-tables-test: Update golden binaries, Julia Suvorova, 2021/05/13
- [RFC PATCH v4 1/7] hw/acpi/pcihp: Enhance acpi_pcihp_disable_root_bus() to support Q35,
Julia Suvorova <=
- Re: [RFC PATCH v4 0/7] Use ACPI PCI hot-plug for Q35, Igor Mammedov, 2021/05/20
- Re: [RFC PATCH v4 0/7] Use ACPI PCI hot-plug for Q35, Michael S. Tsirkin, 2021/05/23
- Re: [RFC PATCH v4 0/7] Use ACPI PCI hot-plug for Q35, Michael S. Tsirkin, 2021/05/26