pci_map_irq_fn);
/* alpha_pci.c. */
+extern const MemoryRegionOps alpha_pci_ignore_ops;
extern const MemoryRegionOps alpha_pci_conf1_ops;
extern const MemoryRegionOps alpha_pci_iack_ops;
#include "sysemu/sysemu.h"
+/* Fallback for unassigned PCI I/O operations. Avoids MCHK. */
+
+static uint64_t ignore_read(void *opaque, hwaddr addr, unsigned size)
+{
+ return 0;
+}
+
+static void ignore_write(void *opaque, hwaddr addr, uint64_t v, unsigned size)
+{
+}
+
+const MemoryRegionOps alpha_pci_ignore_ops = {
+ .read = ignore_read,
+ .write = ignore_write,
+ .endianness = DEVICE_LITTLE_ENDIAN,
+ .valid = {
+ .min_access_size = 1,
+ .max_access_size = 8,
+ },
+ .impl = {
+ .min_access_size = 1,
+ .max_access_size = 8,
+ },
+};
+
+
/* PCI config space reads/writes, to byte-word addressable memory. */
static uint64_t bw_conf1_read(void *opaque, hwaddr addr,
unsigned size)
&s->pchip.reg_mem);
/* Pchip0 PCI I/O, 0x801.FC00.0000, 32MB. */
- memory_region_init(&s->pchip.reg_io, OBJECT(s), "pci0-io", 32*MB);
+ memory_region_init_io(&s->pchip.reg_io, OBJECT(s), &alpha_pci_ignore_ops,
+ NULL, "pci0-io", 32*MB);
memory_region_add_subregion(addr_space, 0x801fc000000ULL,
&s->pchip.reg_io);