diff options
Diffstat (limited to 'include/exec')
| -rw-r--r-- | include/exec/memory.h | 4 | ||||
| -rw-r--r-- | include/exec/ram_addr.h | 3 |
2 files changed, 7 insertions, 0 deletions
diff --git a/include/exec/memory.h b/include/exec/memory.h index 30e7166dd1..cd62029a7d 100644 --- a/include/exec/memory.h +++ b/include/exec/memory.h @@ -123,6 +123,9 @@ typedef struct IOMMUNotifier IOMMUNotifier; /* RAM can be migrated */ #define RAM_MIGRATABLE (1 << 4) +/* RAM is a persistent kind memory */ +#define RAM_PMEM (1 << 5) + static inline void iommu_notifier_init(IOMMUNotifier *n, IOMMUNotify fn, IOMMUNotifierFlag flags, hwaddr start, hwaddr end, @@ -654,6 +657,7 @@ void memory_region_init_resizeable_ram(MemoryRegion *mr, * (getpagesize()) will be used. * @ram_flags: Memory region features: * - RAM_SHARED: memory must be mmaped with the MAP_SHARED flag + * - RAM_PMEM: the memory is persistent memory * Other bits are ignored now. * @path: the path in which to allocate the RAM. * @errp: pointer to Error*, to store an error if it happens. diff --git a/include/exec/ram_addr.h b/include/exec/ram_addr.h index 8a4a9bc614..3abb639056 100644 --- a/include/exec/ram_addr.h +++ b/include/exec/ram_addr.h @@ -70,6 +70,8 @@ static inline unsigned long int ramblock_recv_bitmap_offset(void *host_addr, return host_addr_offset >> TARGET_PAGE_BITS; } +bool ramblock_is_pmem(RAMBlock *rb); + long qemu_getrampagesize(void); /** @@ -83,6 +85,7 @@ long qemu_getrampagesize(void); * @ram_flags: specify the properties of the ram block, which can be one * or bit-or of following values * - RAM_SHARED: mmap the backing file or device with MAP_SHARED + * - RAM_PMEM: the backend @mem_path or @fd is persistent memory * Other bits are ignored. * @mem_path or @fd: specify the backing file or device * @errp: pointer to Error*, to store an error if it happens |