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authorGerd Hoffmann <kraxel@redhat.com>2013-08-06 10:48:41 +0200
committerPatrick Georgi <patrick@georgi-clan.de>2013-08-15 19:48:17 +0200
commit05d3f49fc67f6023f9bc64dbbce56cf4613c4ab9 (patch)
tree904f8f6111087eed49a7de4378ec7c82b1b8781e /src/mainboard/emulation/qemu-i440fx
parent42e11f5a03480f6bc4a7dc54dd87bea4e850042a (diff)
downloadcoreboot-05d3f49fc67f6023f9bc64dbbce56cf4613c4ab9.tar.xz
qemu: reserve ports
QEMU has a bunch of non-standard virtual devices on various I/O ports. Allocate resources for them so the coreboot resource management knows those ports are used. Change-Id: I51a85967cf2dcd634b0c883210bb52c0c34c8283 Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Reviewed-on: http://review.coreboot.org/3851 Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
Diffstat (limited to 'src/mainboard/emulation/qemu-i440fx')
-rw-r--r--src/mainboard/emulation/qemu-i440fx/northbridge.c30
1 files changed, 30 insertions, 0 deletions
diff --git a/src/mainboard/emulation/qemu-i440fx/northbridge.c b/src/mainboard/emulation/qemu-i440fx/northbridge.c
index a3c2f51ef2..f975b6cdc4 100644
--- a/src/mainboard/emulation/qemu-i440fx/northbridge.c
+++ b/src/mainboard/emulation/qemu-i440fx/northbridge.c
@@ -28,6 +28,23 @@ static unsigned long qemu_get_high_memory_size(void)
return high;
}
+static void qemu_reserve_ports(struct device *dev, unsigned int idx,
+ unsigned int base, unsigned int size,
+ const char *name)
+{
+ unsigned int end = base + size -1;
+ struct resource *res;
+
+ printk(BIOS_DEBUG, "QEMU: reserve ioports 0x%04x-0x%04x [%s]\n",
+ base, end, name);
+ res = new_resource(dev, idx);
+ res->base = base;
+ res->size = size;
+ res->limit = 0xffff;
+ res->flags = IORESOURCE_IO | IORESOURCE_FIXED | IORESOURCE_STORED |
+ IORESOURCE_ASSIGNED;
+}
+
static void cpu_pci_domain_set_resources(device_t dev)
{
assign_resources(dev->link_list);
@@ -53,6 +70,19 @@ static void cpu_pci_domain_read_resources(struct device *dev)
if (high)
ram_resource(dev, idx++, 4 * 1024 * 1024, high);
+ /* Reserve I/O ports used by QEMU */
+ qemu_reserve_ports(dev, idx++, 0x0510, 0x02, "firmware-config");
+ qemu_reserve_ports(dev, idx++, 0x5658, 0x01, "vmware-port");
+ if (i440fx) {
+ qemu_reserve_ports(dev, idx++, 0xae00, 0x10, "pci-hotplug");
+ qemu_reserve_ports(dev, idx++, 0xaf00, 0x20, "cpu-hotplug");
+ qemu_reserve_ports(dev, idx++, 0xafe0, 0x04, "piix4-gpe0");
+ }
+ if (inb(CONFIG_CONSOLE_QEMU_DEBUGCON_PORT) == 0xe9) {
+ qemu_reserve_ports(dev, idx++, CONFIG_CONSOLE_QEMU_DEBUGCON_PORT, 1,
+ "debugcon");
+ }
+
#if !CONFIG_DYNAMIC_CBMEM
/* Leave some space for ACPI, PIRQ and MP tables */
high_tables_base = (tomk * 1024) - HIGH_MEMORY_SIZE;