===================================================================
@@ -961,8 +961,27 @@ static void *file_ram_alloc(RAMBlock *bl
return (NULL);
}
block->fd = fd;
+ block->hpagesize = hpagesize;
return area;
}
+
+uint32_t qemu_get_ram_hpagesize(ram_addr_t addr)
+{
+ RAMBlock *block;
+
+ QTAILQ_FOREACH(block, &ram_list.blocks, next) {
+ if (addr - block->offset < block->length) {
+ return block->hpagesize;
+ }
+ }
+
+ fprintf(stderr, "%s: Bad ram offset %" PRIx64 "\n", __func__,
+ (uint64_t)addr);
+ abort();
+
+ return 0;
+}
+
#else
static void *file_ram_alloc(RAMBlock *block,
ram_addr_t memory,
===================================================================
@@ -448,6 +448,7 @@ typedef struct RAMBlock {
ram_addr_t offset;
ram_addr_t length;
uint32_t flags;
+ uint32_t hpagesize;
char idstr[256];
/* Reads can take either the iothread or the ramlist lock.
* Writes must take both locks.
===================================================================
@@ -54,6 +54,9 @@ void qemu_ram_remap(ram_addr_t addr, ram
/* This should not be used by devices. */
MemoryRegion *qemu_ram_addr_from_host(void *ptr, ram_addr_t *ram_addr);
void qemu_ram_set_idstr(ram_addr_t addr, const char *name, DeviceState *dev);
+#ifdef __linux__
+uint32_t qemu_get_ram_hpagesize(ram_addr_t addr);
+#endif
void cpu_physical_memory_rw(hwaddr addr, uint8_t *buf,
int len, int is_write);
Add helper to retrieve page size of RAM backing, when hugetlbfs is used. Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>