From 87a45cfee6b169a68e43f284a8a3c1bc20bd5dc9 Mon Sep 17 00:00:00 2001 From: zhanghailiang Date: Mon, 17 Nov 2014 13:11:08 +0800 Subject: pc-dimm: add a function to calculate VM's current RAM size The global parameter 'ram_size' does not take into account the hotplugged memory. In some codes, we use 'ram_size' as current VM's real RAM size, which is not correct. Add function 'get_current_ram_size' to calculate VM's current RAM size, it will enumerate present memory devices and also plus ram_size. Signed-off-by: zhanghailiang Signed-off-by: Luiz Capitulino --- hw/mem/pc-dimm.c | 26 ++++++++++++++++++++++++++ 1 file changed, 26 insertions(+) (limited to 'hw/mem/pc-dimm.c') diff --git a/hw/mem/pc-dimm.c b/hw/mem/pc-dimm.c index f27a087061..de81b9ceab 100644 --- a/hw/mem/pc-dimm.c +++ b/hw/mem/pc-dimm.c @@ -100,6 +100,32 @@ int qmp_pc_dimm_device_list(Object *obj, void *opaque) return 0; } +ram_addr_t get_current_ram_size(void) +{ + MemoryDeviceInfoList *info_list = NULL; + MemoryDeviceInfoList **prev = &info_list; + MemoryDeviceInfoList *info; + ram_addr_t size = ram_size; + + qmp_pc_dimm_device_list(qdev_get_machine(), &prev); + for (info = info_list; info; info = info->next) { + MemoryDeviceInfo *value = info->value; + + if (value) { + switch (value->kind) { + case MEMORY_DEVICE_INFO_KIND_DIMM: + size += value->dimm->size; + break; + default: + break; + } + } + } + qapi_free_MemoryDeviceInfoList(info_list); + + return size; +} + static int pc_dimm_slot2bitmap(Object *obj, void *opaque) { unsigned long *bitmap = opaque; -- cgit v1.2.3