[PATCH-for-10.0 v2 10/13] hw/pci-host/gpex: Expose 'refuse-bar-at-addr-0' property

[Philippe Mathieu-Daudé]

Expose the "refuse-bar-at-addr-0" property so machines
using a GPEX host bridge can set this flag on the bus.
While the default property is set to 'false', all caller
set it to 'true' so there is no logical change so far.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
---
 include/hw/pci-host/gpex.h | 1 +
 hw/arm/sbsa-ref.c          | 2 ++
 hw/arm/virt.c              | 2 ++
 hw/i386/microvm.c          | 2 ++
 hw/loongarch/virt.c        | 2 ++
 hw/mips/loongson3_virt.c   | 2 ++
 hw/openrisc/virt.c         | 2 ++
 hw/pci-host/gpex.c         | 4 +++-
 hw/riscv/virt.c            | 2 ++
 hw/xen/xen-pvh-common.c    | 2 ++
 hw/xtensa/virt.c           | 2 ++
 11 files changed, 22 insertions(+), 1 deletion(-)

diff --git a/include/hw/pci-host/gpex.h b/include/hw/pci-host/gpex.h
index dce883573ba..44c6463afb3 100644
--- a/include/hw/pci-host/gpex.h
+++ b/include/hw/pci-host/gpex.h
@@ -64,6 +64,7 @@ struct GPEXHost {
     int irq_num[GPEX_NUM_IRQS];
 
     bool allow_unmapped_accesses;
+    bool refuse_bar_at_addr_0;
 
     struct GPEXConfig gpex_cfg;
 };
diff --git a/hw/arm/sbsa-ref.c b/hw/arm/sbsa-ref.c
index e3195d54497..f6cf43cf0c9 100644
--- a/hw/arm/sbsa-ref.c
+++ b/hw/arm/sbsa-ref.c
@@ -647,6 +647,8 @@ static void create_pcie(SBSAMachineState *sms)
     int i;
 
     dev = qdev_new(TYPE_GPEX_HOST);
+    object_property_set_bool(OBJECT(dev), "refuse-bar-at-addr-0",
+                             true, &error_fatal);
     sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal);
 
     /* Map ECAM space */
diff --git a/hw/arm/virt.c b/hw/arm/virt.c
index 1a381e9a2bd..06affc3638b 100644
--- a/hw/arm/virt.c
+++ b/hw/arm/virt.c
@@ -1510,6 +1510,8 @@ static void create_pcie(VirtMachineState *vms)
     MachineClass *mc = MACHINE_GET_CLASS(ms);
 
     dev = qdev_new(TYPE_GPEX_HOST);
+    object_property_set_bool(OBJECT(dev), "refuse-bar-at-addr-0",
+                             true, &error_fatal);
     sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal);
 
     ecam_id = VIRT_ECAM_ID(vms->highmem_ecam);
diff --git a/hw/i386/microvm.c b/hw/i386/microvm.c
index 86637afa0f3..2231fd8f9cf 100644
--- a/hw/i386/microvm.c
+++ b/hw/i386/microvm.c
@@ -108,6 +108,8 @@ static void create_gpex(MicrovmMachineState *mms)
     int i;
 
     dev = qdev_new(TYPE_GPEX_HOST);
+    object_property_set_bool(OBJECT(dev), "refuse-bar-at-addr-0",
+                             true, &error_fatal);
     sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal);
 
     /* Map only the first size_ecam bytes of ECAM space */
diff --git a/hw/loongarch/virt.c b/hw/loongarch/virt.c
index 9a635d1d3d3..b5a26d3c23d 100644
--- a/hw/loongarch/virt.c
+++ b/hw/loongarch/virt.c
@@ -712,6 +712,8 @@ static void virt_devices_init(DeviceState *pch_pic,
     int i;
 
     gpex_dev = qdev_new(TYPE_GPEX_HOST);
+    object_property_set_bool(OBJECT(gpex_dev), "refuse-bar-at-addr-0",
+                             true, &error_fatal);
     d = SYS_BUS_DEVICE(gpex_dev);
     sysbus_realize_and_unref(d, &error_fatal);
     pci_bus = PCI_HOST_BRIDGE(gpex_dev)->bus;
diff --git a/hw/mips/loongson3_virt.c b/hw/mips/loongson3_virt.c
index f3b6326cc59..21af0b5bc86 100644
--- a/hw/mips/loongson3_virt.c
+++ b/hw/mips/loongson3_virt.c
@@ -430,6 +430,8 @@ static inline void loongson3_virt_devices_init(MachineState 
*machine,
     LoongsonMachineState *s = LOONGSON_MACHINE(machine);
 
     dev = qdev_new(TYPE_GPEX_HOST);
+    object_property_set_bool(OBJECT(dev), "refuse-bar-at-addr-0",
+                             true, &error_fatal);
     sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal);
     pci_bus = PCI_HOST_BRIDGE(dev)->bus;
 
diff --git a/hw/openrisc/virt.c b/hw/openrisc/virt.c
index 47d2c9bd3c7..cde9379a992 100644
--- a/hw/openrisc/virt.c
+++ b/hw/openrisc/virt.c
@@ -380,6 +380,8 @@ static void openrisc_virt_pcie_init(OR1KVirtState *state,
     int i;
 
     dev = qdev_new(TYPE_GPEX_HOST);
+    object_property_set_bool(OBJECT(dev), "refuse-bar-at-addr-0",
+                             true, &error_fatal);
     sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal);
 
     /* Map ECAM space. */
diff --git a/hw/pci-host/gpex.c b/hw/pci-host/gpex.c
index 299f4d4f840..b888f4e831d 100644
--- a/hw/pci-host/gpex.c
+++ b/hw/pci-host/gpex.c
@@ -136,7 +136,7 @@ static void gpex_host_realize(DeviceState *dev, Error 
**errp)
     pci->bus = pci_register_root_bus(dev, "pcie.0", gpex_set_irq,
                                      pci_swizzle_map_irq_fn, s, &s->io_mmio,
                                      &s->io_ioport, 0, 4, TYPE_PCIE_BUS,
-                                     true);
+                                     s->refuse_bar_at_addr_0);
 
     pci_bus_set_route_irq_fn(pci->bus, gpex_route_intx_pin_to_irq);
     qdev_realize(DEVICE(&s->gpex_root), BUS(pci->bus), &error_fatal);
@@ -155,6 +155,8 @@ static Property gpex_host_properties[] = {
      */
     DEFINE_PROP_BOOL("allow-unmapped-accesses", GPEXHost,
                      allow_unmapped_accesses, true),
+    DEFINE_PROP_BOOL("refuse-bar-at-addr-0", GPEXHost,
+                     refuse_bar_at_addr_0, false),
     DEFINE_PROP_UINT64(PCI_HOST_ECAM_BASE, GPEXHost, gpex_cfg.ecam.base, 0),
     DEFINE_PROP_SIZE(PCI_HOST_ECAM_SIZE, GPEXHost, gpex_cfg.ecam.size, 0),
     DEFINE_PROP_UINT64(PCI_HOST_PIO_BASE, GPEXHost, gpex_cfg.pio.base, 0),
diff --git a/hw/riscv/virt.c b/hw/riscv/virt.c
index 45a8c4f8190..8999fc348cb 100644
--- a/hw/riscv/virt.c
+++ b/hw/riscv/virt.c
@@ -1158,6 +1158,8 @@ static inline DeviceState *gpex_pcie_init(MemoryRegion 
*sys_mem,
                             pio_base, NULL);
     object_property_set_int(OBJECT(GPEX_HOST(dev)), PCI_HOST_PIO_SIZE,
                             pio_size, NULL);
+    object_property_set_bool(OBJECT(dev), "refuse-bar-at-addr-0",
+                             true, &error_fatal);
 
     sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal);
 
diff --git a/hw/xen/xen-pvh-common.c b/hw/xen/xen-pvh-common.c
index 218ac851cf7..3131a2dd280 100644
--- a/hw/xen/xen-pvh-common.c
+++ b/hw/xen/xen-pvh-common.c
@@ -139,6 +139,8 @@ static inline void xenpvh_gpex_init(XenPVHMachineState *s,
 
     object_initialize_child(OBJECT(s), "gpex", &s->pci.gpex,
                             TYPE_GPEX_HOST);
+    object_property_set_bool(OBJECT(s), "refuse-bar-at-addr-0",
+                             true, &error_fatal);
     dev = DEVICE(&s->pci.gpex);
     sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal);
 
diff --git a/hw/xtensa/virt.c b/hw/xtensa/virt.c
index 5310a888613..dcb39a67868 100644
--- a/hw/xtensa/virt.c
+++ b/hw/xtensa/virt.c
@@ -62,6 +62,8 @@ static void create_pcie(MachineState *ms, CPUXtensaState 
*env, int irq_base,
     int i;
 
     dev = qdev_new(TYPE_GPEX_HOST);
+    object_property_set_bool(OBJECT(dev), "refuse-bar-at-addr-0",
+                             true, &error_fatal);
     sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal);
 
     /* Map only the first size_ecam bytes of ECAM space. */
-- 
2.45.2