IOMMU_INIT_ERROR,
};
+/* Early ioapic and hpet maps from kernel command line */
+#define EARLY_MAP_SIZE 4
+static struct devid_map __initdata early_ioapic_map[EARLY_MAP_SIZE];
+static struct devid_map __initdata early_hpet_map[EARLY_MAP_SIZE];
+static int __initdata early_ioapic_map_size;
+static int __initdata early_hpet_map_size;
+
static enum iommu_init_state init_state = IOMMU_START_STATE;
static int amd_iommu_enable_interrupts(void);
return 0;
}
+static int __init add_early_maps(void)
+{
+ int i, ret;
+
+ for (i = 0; i < early_ioapic_map_size; ++i) {
+ ret = add_special_device(IVHD_SPECIAL_IOAPIC,
+ early_ioapic_map[i].id,
+ early_ioapic_map[i].devid,
+ early_ioapic_map[i].cmd_line);
+ if (ret)
+ return ret;
+ }
+
+ for (i = 0; i < early_hpet_map_size; ++i) {
+ ret = add_special_device(IVHD_SPECIAL_HPET,
+ early_hpet_map[i].id,
+ early_hpet_map[i].devid,
+ early_hpet_map[i].cmd_line);
+ if (ret)
+ return ret;
+ }
+
+ return 0;
+}
+
/*
* Reads the device exclusion range from ACPI and initializes the IOMMU with
* it
u32 dev_i, ext_flags = 0;
bool alias = false;
struct ivhd_entry *e;
+ int ret;
+
+
+ ret = add_early_maps();
+ if (ret)
+ return ret;
/*
* First save the recommended feature enable bits from ACPI