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[Qemu-ppc] [Qemu-devel] [PATCH RFC 13/17] hw/pci: inform bios if the sys
From: |
Marcel Apfelbaum |
Subject: |
[Qemu-ppc] [Qemu-devel] [PATCH RFC 13/17] hw/pci: inform bios if the system has more than one pci bridge |
Date: |
Thu, 22 Jan 2015 21:52:39 +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 e07f1fa..9ef0917 100644
--- a/hw/i386/pc.c
+++ b/hw/i386/pc.c
@@ -1073,9 +1073,22 @@ 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
- [Qemu-ppc] [Qemu-devel] [PATCH RFC 07/17] hw/pci: made pci_bus_is_root a PCIBusClass method, (continued)
- [Qemu-ppc] [Qemu-devel] [PATCH RFC 08/17] hw/pci: made pci_bus_num a PCIBusClass method, Marcel Apfelbaum, 2015/01/22
- [Qemu-ppc] [Qemu-devel] [PATCH RFC 06/17] hw/pci: move pci bus related code to separate files, Marcel Apfelbaum, 2015/01/22
- [Qemu-ppc] [Qemu-devel] [PATCH RFC 11/17] hw/pci: implement iteration over multiple host bridges, Marcel Apfelbaum, 2015/01/22
- [Qemu-ppc] [Qemu-devel] [PATCH RFC 12/17] hw/pci: introduce PCI Expander Bridge (PXB), Marcel Apfelbaum, 2015/01/22
- [Qemu-ppc] [Qemu-devel] [PATCH RFC 13/17] hw/pci: inform bios if the system has more than one pci bridge,
Marcel Apfelbaum <=
- [Qemu-ppc] [Qemu-devel] [PATCH RFC 15/17] hw/pxb: add map_irq func, Marcel Apfelbaum, 2015/01/22
- [Qemu-ppc] [Qemu-devel] [PATCH RFC 14/17] hw/pci: piix - suport multiple host bridges, Marcel Apfelbaum, 2015/01/22
- [Qemu-ppc] [Qemu-devel] [PATCH RFC 16/17] hw/pci-bridge: hack - disable shpc bar (will be removed from the series), Marcel Apfelbaum, 2015/01/22
- [Qemu-ppc] [Qemu-devel] [PATCH RFC 17/17] hw/acpi: hack - generate dummy region ranges for first acpi-build (will be removed from the series), Marcel Apfelbaum, 2015/01/22