diff options
Diffstat (limited to 'exec.c')
| -rw-r--r-- | exec.c | 37 |
1 files changed, 10 insertions, 27 deletions
diff --git a/exec.c b/exec.c index 482dd801df..0a6dd2e836 100644 --- a/exec.c +++ b/exec.c @@ -1099,6 +1099,7 @@ ram_addr_t qemu_ram_alloc_from_ptr(ram_addr_t size, void *host, size = TARGET_PAGE_ALIGN(size); new_block = g_malloc0(sizeof(*new_block)); + new_block->fd = -1; /* This assumes the iothread lock is taken here too. */ qemu_mutex_lock_ramlist(); @@ -1203,17 +1204,9 @@ void qemu_ram_free(ram_addr_t addr) ; } else if (xen_enabled()) { xen_invalidate_map_cache_entry(block->host); - } else if (mem_path) { -#if defined (__linux__) && !defined(TARGET_S390X) - if (block->fd) { - munmap(block->host, block->length); - close(block->fd); - } else { - qemu_anon_ram_free(block->host, block->length); - } -#else - abort(); -#endif + } else if (block->fd >= 0) { + munmap(block->host, block->length); + close(block->fd); } else { qemu_anon_ram_free(block->host, block->length); } @@ -1244,25 +1237,15 @@ void qemu_ram_remap(ram_addr_t addr, ram_addr_t length) } else { flags = MAP_FIXED; munmap(vaddr, length); - if (mem_path) { -#if defined(__linux__) && !defined(TARGET_S390X) - if (block->fd) { + if (block->fd >= 0) { #ifdef MAP_POPULATE - flags |= mem_prealloc ? MAP_POPULATE | MAP_SHARED : - MAP_PRIVATE; + flags |= mem_prealloc ? MAP_POPULATE | MAP_SHARED : + MAP_PRIVATE; #else - flags |= MAP_PRIVATE; -#endif - area = mmap(vaddr, length, PROT_READ | PROT_WRITE, - flags, block->fd, offset); - } else { - flags |= MAP_PRIVATE | MAP_ANONYMOUS; - area = mmap(vaddr, length, PROT_READ | PROT_WRITE, - flags, -1, 0); - } -#else - abort(); + flags |= MAP_PRIVATE; #endif + area = mmap(vaddr, length, PROT_READ | PROT_WRITE, + flags, block->fd, offset); } else { #if defined(TARGET_S390X) && defined(CONFIG_KVM) flags |= MAP_SHARED | MAP_ANONYMOUS; |