diff options
| -rw-r--r-- | qga/commands-posix.c | 31 |
1 files changed, 29 insertions, 2 deletions
diff --git a/qga/commands-posix.c b/qga/commands-posix.c index 0fd5d959d2..6575c49191 100644 --- a/qga/commands-posix.c +++ b/qga/commands-posix.c @@ -2266,8 +2266,35 @@ err: GuestMemoryBlockInfo *qmp_guest_get_memory_block_info(Error **errp) { - error_set(errp, QERR_UNSUPPORTED); - return NULL; + Error *local_err = NULL; + char *dirpath; + int dirfd; + char *buf; + GuestMemoryBlockInfo *info; + + dirpath = g_strdup_printf("/sys/devices/system/memory/"); + dirfd = open(dirpath, O_RDONLY | O_DIRECTORY); + if (dirfd == -1) { + error_setg_errno(errp, errno, "open(\"%s\")", dirpath); + g_free(dirpath); + return NULL; + } + g_free(dirpath); + + buf = g_malloc0(20); + ga_read_sysfs_file(dirfd, "block_size_bytes", buf, 20, &local_err); + if (local_err) { + g_free(buf); + error_propagate(errp, local_err); + return NULL; + } + + info = g_new0(GuestMemoryBlockInfo, 1); + info->size = strtol(buf, NULL, 16); /* the unit is bytes */ + + g_free(buf); + + return info; } #else /* defined(__linux__) */ |