diff options
Diffstat (limited to 'xen-mapcache.c')
-rw-r--r-- | xen-mapcache.c | 41 |
1 files changed, 23 insertions, 18 deletions
diff --git a/xen-mapcache.c b/xen-mapcache.c index fac47cd9be..007136af26 100644 --- a/xen-mapcache.c +++ b/xen-mapcache.c @@ -40,6 +40,9 @@ #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; @@ -79,7 +82,7 @@ static inline int test_bits(int nr, int size, const unsigned long *addr) return 0; } -void qemu_map_cache_init(void) +void xen_map_cache_init(void) { unsigned long size; struct rlimit rlimit_as; @@ -106,13 +109,14 @@ void qemu_map_cache_init(void) 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; @@ -120,7 +124,7 @@ static void qemu_remap_bucket(MapCacheEntry *entry, 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)); @@ -164,17 +168,18 @@ static void qemu_remap_bucket(MapCacheEntry *entry, 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; } @@ -198,20 +203,20 @@ uint8_t *qemu_map_cache(target_phys_addr_t phys_addr, target_phys_addr_t size, u 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; } @@ -226,11 +231,11 @@ uint8_t *qemu_map_cache(target_phys_addr_t phys_addr, target_phys_addr_t size, u 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; } -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; @@ -247,7 +252,7 @@ ram_addr_t qemu_ram_addr_from_mapcache(void *ptr) } } 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); @@ -269,7 +274,7 @@ ram_addr_t qemu_ram_addr_from_mapcache(void *ptr) ((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; @@ -290,7 +295,7 @@ void qemu_invalidate_entry(uint8_t *buffer) } } 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); } @@ -322,7 +327,7 @@ void qemu_invalidate_entry(uint8_t *buffer) qemu_free(entry); } -void qemu_invalidate_map_cache(void) +void xen_invalidate_map_cache(void) { unsigned long i; MapCacheRev *reventry; |