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[Qemu-devel] [PATCH v5 for-2.3 21/28] hw/pci: inform bios if the system
From: |
Marcel Apfelbaum |
Subject: |
[Qemu-devel] [PATCH v5 for-2.3 21/28] hw/pci: inform bios if the system has more than one pci bridge |
Date: |
Tue, 10 Mar 2015 17:32:07 +0200 |
From: Marcel Apfelbaum <address@hidden>
The bios looks for 'etc/extra-pci-roots' to decide if
is going to scan further buses after bus 0 tree.
Signed-off-by: Marcel Apfelbaum <address@hidden>
---
hw/i386/pc.c | 13 +++++++++++++
1 file changed, 13 insertions(+)
diff --git a/hw/i386/pc.c b/hw/i386/pc.c
index ae3ef0a..71d2f5b 100644
--- a/hw/i386/pc.c
+++ b/hw/i386/pc.c
@@ -1072,9 +1072,22 @@ typedef struct PcGuestInfoState {
static
void pc_guest_info_machine_done(Notifier *notifier, void *data)
{
+ PCIHostState *host;
+ int hosts = 0;
PcGuestInfoState *guest_info_state = container_of(notifier,
PcGuestInfoState,
machine_done);
+ HOST_BRIDGE_FOREACH(host) {
+ hosts++;
+ }
+
+ if (hosts && guest_info_state->info.fw_cfg) {
+ uint64_t *val = g_malloc(sizeof(*val));
+ *val = cpu_to_le64(hosts - 1);
+ fw_cfg_add_file(guest_info_state->info.fw_cfg,
+ "etc/extra-pci-roots", val, sizeof(*val));
+ }
+
acpi_setup(&guest_info_state->info);
}
--
2.1.0
- Re: [Qemu-devel] [PATCH v5 for-2.3 12/28] hw/acpi: add _CRS method for extra root busses, (continued)
- [Qemu-devel] [PATCH v5 for-2.3 13/28] hw/acpi: remove from root bus 0 the crs resources used by other busses., Marcel Apfelbaum, 2015/03/10
- [Qemu-devel] [PATCH v5 for-2.3 15/28] hw/pci: made pci_bus_is_root a PCIBusClass method, Marcel Apfelbaum, 2015/03/10
- [Qemu-devel] [PATCH v5 for-2.3 14/28] hw/pci: move pci bus related code to separate files, Marcel Apfelbaum, 2015/03/10
- [Qemu-devel] [PATCH v5 for-2.3 16/28] hw/pci: made pci_bus_num a PCIBusClass method, Marcel Apfelbaum, 2015/03/10
- [Qemu-devel] [PATCH v5 for-2.3 18/28] hw/pci: removed 'rootbus nr is 0' assumption from qmp_pci_query, Marcel Apfelbaum, 2015/03/10
- [Qemu-devel] [PATCH v5 for-2.3 19/28] hw/pci: implement iteration over multiple host bridges, Marcel Apfelbaum, 2015/03/10
- [Qemu-devel] [PATCH v5 for-2.3 17/28] hw/pci: introduce TYPE_PCI_MAIN_HOST_BRIDGE interface, Marcel Apfelbaum, 2015/03/10
- [Qemu-devel] [PATCH v5 for-2.3 21/28] hw/pci: inform bios if the system has more than one pci bridge,
Marcel Apfelbaum <=
- [Qemu-devel] [PATCH v5 for-2.3 20/28] hw/pci: introduce PCI Expander Bridge (PXB), Marcel Apfelbaum, 2015/03/10
- [Qemu-devel] [PATCH v5 for-2.3 22/28] hw/pci: piix - suport multiple host bridges, Marcel Apfelbaum, 2015/03/10
- [Qemu-devel] [PATCH v5 for-2.3 24/28] hw/pci_bus: add support for NUMA nodes, Marcel Apfelbaum, 2015/03/10
- [Qemu-devel] [PATCH v5 for-2.3 26/28] acpi: restrict the aml emission to PXB host bridges, Marcel Apfelbaum, 2015/03/10
- [Qemu-devel] [PATCH v5 for-2.3 27/28] apci: fix PXB behaviour if used with unsupported BIOS, Marcel Apfelbaum, 2015/03/10