hw/pci-host/astro: Map Astro chip into 64-bit I/O memory region

Map Astro into high F-region and add alias for 32-bit OS in low region. Signed-off-by: Helge Deller <deller@gmx.de>
qemu · Nov 7, 2023 · fd842b2 · fd842b2
1 parent 5dd5c00
commit fd842b2
Showing 1 changed file with 6 additions and 3 deletions.
diff --git a/hw/pci-host/astro.c b/hw/pci-host/astro.c
@@ -19,6 +19,8 @@
 
 #define TYPE_ASTRO_IOMMU_MEMORY_REGION "astro-iommu-memory-region"
 
+#define F_EXTEND(addr) ((addr) | MAKE_64BIT_MASK(32, 32))
+
 #include "qemu/osdep.h"
 #include "qemu/module.h"
 #include "qemu/units.h"
@@ -821,15 +823,16 @@ static void astro_realize(DeviceState *obj, Error **errp)
 
         /* map elroys mmio */
         map_size = LMMIO_DIST_BASE_SIZE / ROPES_PER_IOC;
-        map_addr = (uint32_t) (LMMIO_DIST_BASE_ADDR + rope * map_size);
+        map_addr = F_EXTEND(LMMIO_DIST_BASE_ADDR + rope * map_size);
         memory_region_init_alias(&elroy->pci_mmio_alias, OBJECT(elroy),
                                  "pci-mmio-alias",
-                                 &elroy->pci_mmio, map_addr, map_size);
+                                 &elroy->pci_mmio, (uint32_t) map_addr, map_size);
         memory_region_add_subregion(get_system_memory(), map_addr,
                                  &elroy->pci_mmio_alias);
 
+        /* map elroys io */
         map_size = IOS_DIST_BASE_SIZE / ROPES_PER_IOC;
-        map_addr = (uint32_t) (IOS_DIST_BASE_ADDR + rope * map_size);
+        map_addr = F_EXTEND(IOS_DIST_BASE_ADDR + rope * map_size);
         memory_region_add_subregion(get_system_memory(), map_addr,
                                  &elroy->pci_io);