#endif
#define MCACHE_BUCKET_SIZE (1UL << MCACHE_BUCKET_SHIFT)
+#define mapcache_lock() ((void)0)
+#define mapcache_unlock() ((void)0)
+
typedef struct MapCacheEntry {
target_phys_addr_t paddr_index;
uint8_t *vaddr_base;
return 0;
}
-void qemu_map_cache_init(void)
+void xen_map_cache_init(void)
{
unsigned long size;
struct rlimit rlimit_as;
size = mapcache->nr_buckets * sizeof (MapCacheEntry);
size = (size + XC_PAGE_SIZE - 1) & ~(XC_PAGE_SIZE - 1);
- DPRINTF("qemu_map_cache_init, nr_buckets = %lx size %lu\n", mapcache->nr_buckets, size);
+ DPRINTF("%s, nr_buckets = %lx size %lu\n", __func__,
+ mapcache->nr_buckets, size);
mapcache->entry = qemu_mallocz(size);
}
-static void qemu_remap_bucket(MapCacheEntry *entry,
- target_phys_addr_t size,
- target_phys_addr_t address_index)
+static void xen_remap_bucket(MapCacheEntry *entry,
+ target_phys_addr_t size,
+ target_phys_addr_t address_index)
{
uint8_t *vaddr_base;
xen_pfn_t *pfns;
unsigned int i;
target_phys_addr_t nb_pfn = size >> XC_PAGE_SHIFT;
- trace_qemu_remap_bucket(address_index);
+ trace_xen_remap_bucket(address_index);
pfns = qemu_mallocz(nb_pfn * sizeof (xen_pfn_t));
err = qemu_mallocz(nb_pfn * sizeof (int));
qemu_free(err);
}
-uint8_t *qemu_map_cache(target_phys_addr_t phys_addr, target_phys_addr_t size, uint8_t lock)
+uint8_t *xen_map_cache(target_phys_addr_t phys_addr, target_phys_addr_t size,
+ uint8_t lock)
{
MapCacheEntry *entry, *pentry = NULL;
target_phys_addr_t address_index = phys_addr >> MCACHE_BUCKET_SHIFT;
target_phys_addr_t address_offset = phys_addr & (MCACHE_BUCKET_SIZE - 1);
target_phys_addr_t __size = size;
- trace_qemu_map_cache(phys_addr);
+ trace_xen_map_cache(phys_addr);
if (address_index == mapcache->last_address_index && !lock && !__size) {
- trace_qemu_map_cache_return(mapcache->last_address_vaddr + address_offset);
+ trace_xen_map_cache_return(mapcache->last_address_vaddr + address_offset);
return mapcache->last_address_vaddr + address_offset;
}
if (!entry) {
entry = qemu_mallocz(sizeof (MapCacheEntry));
pentry->next = entry;
- qemu_remap_bucket(entry, __size, address_index);
+ xen_remap_bucket(entry, __size, address_index);
} else if (!entry->lock) {
if (!entry->vaddr_base || entry->paddr_index != address_index ||
entry->size != __size ||
!test_bits(address_offset >> XC_PAGE_SHIFT, size >> XC_PAGE_SHIFT,
entry->valid_mapping)) {
- qemu_remap_bucket(entry, __size, address_index);
+ xen_remap_bucket(entry, __size, address_index);
}
}
if(!test_bits(address_offset >> XC_PAGE_SHIFT, size >> XC_PAGE_SHIFT,
entry->valid_mapping)) {
mapcache->last_address_index = -1;
- trace_qemu_map_cache_return(NULL);
+ trace_xen_map_cache_return(NULL);
return NULL;
}
QTAILQ_INSERT_HEAD(&mapcache->locked_entries, reventry, next);
}
- trace_qemu_map_cache_return(mapcache->last_address_vaddr + address_offset);
+ trace_xen_map_cache_return(mapcache->last_address_vaddr + address_offset);
return mapcache->last_address_vaddr + address_offset;
}
-void qemu_map_cache_unlock(void *buffer)
-{
- MapCacheEntry *entry = NULL, *pentry = NULL;
- MapCacheRev *reventry;
- target_phys_addr_t paddr_index;
- int found = 0;
-
- QTAILQ_FOREACH(reventry, &mapcache->locked_entries, next) {
- if (reventry->vaddr_req == buffer) {
- paddr_index = reventry->paddr_index;
- found = 1;
- break;
- }
- }
- if (!found) {
- return;
- }
- QTAILQ_REMOVE(&mapcache->locked_entries, reventry, next);
- qemu_free(reventry);
-
- entry = &mapcache->entry[paddr_index % mapcache->nr_buckets];
- while (entry && entry->paddr_index != paddr_index) {
- pentry = entry;
- entry = entry->next;
- }
- if (!entry) {
- return;
- }
- if (entry->lock > 0) {
- entry->lock--;
- }
-}
-
-ram_addr_t qemu_ram_addr_from_mapcache(void *ptr)
+ram_addr_t xen_ram_addr_from_mapcache(void *ptr)
{
MapCacheEntry *entry = NULL, *pentry = NULL;
MapCacheRev *reventry;
}
}
if (!found) {
- fprintf(stderr, "qemu_ram_addr_from_mapcache, could not find %p\n", ptr);
+ fprintf(stderr, "%s, could not find %p\n", __func__, ptr);
QTAILQ_FOREACH(reventry, &mapcache->locked_entries, next) {
DPRINTF(" "TARGET_FMT_plx" -> %p is present\n", reventry->paddr_index,
reventry->vaddr_req);
((unsigned long) ptr - (unsigned long) entry->vaddr_base);
}
-void qemu_invalidate_entry(uint8_t *buffer)
+void xen_invalidate_map_cache_entry(uint8_t *buffer)
{
MapCacheEntry *entry = NULL, *pentry = NULL;
MapCacheRev *reventry;
}
}
if (!found) {
- DPRINTF("qemu_invalidate_entry, could not find %p\n", buffer);
+ DPRINTF("%s, could not find %p\n", __func__, buffer);
QTAILQ_FOREACH(reventry, &mapcache->locked_entries, next) {
DPRINTF(" "TARGET_FMT_plx" -> %p is present\n", reventry->paddr_index, reventry->vaddr_req);
}
qemu_free(entry);
}
-void qemu_invalidate_map_cache(void)
+void xen_invalidate_map_cache(void)
{
unsigned long i;
MapCacheRev *reventry;
mapcache_unlock();
}
-
-uint8_t *xen_map_block(target_phys_addr_t phys_addr, target_phys_addr_t size)
-{
- uint8_t *vaddr_base;
- xen_pfn_t *pfns;
- int *err;
- unsigned int i;
- target_phys_addr_t nb_pfn = size >> XC_PAGE_SHIFT;
-
- trace_xen_map_block(phys_addr, size);
- phys_addr >>= XC_PAGE_SHIFT;
-
- pfns = qemu_mallocz(nb_pfn * sizeof (xen_pfn_t));
- err = qemu_mallocz(nb_pfn * sizeof (int));
-
- for (i = 0; i < nb_pfn; i++) {
- pfns[i] = phys_addr + i;
- }
-
- vaddr_base = xc_map_foreign_bulk(xen_xc, xen_domid, PROT_READ|PROT_WRITE,
- pfns, err, nb_pfn);
- if (vaddr_base == NULL) {
- perror("xc_map_foreign_bulk");
- exit(-1);
- }
-
- qemu_free(pfns);
- qemu_free(err);
-
- return vaddr_base;
-}