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qapi: Add query-memory-devices support to hv-balloon

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Used by the driver to report its provided memory state information.

Co-developed-by: David Hildenbrand <david@redhat.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Acked-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Maciej S. Szmigiero <maciej.szmigiero@oracle.com>
This commit is contained in:
Maciej S. Szmigiero
2023-08-23 23:31:35 +02:00
parent 99a4706ae8
commit 16dff2f9bb
3 changed files with 78 additions and 3 deletions
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27
hw/hyperv/hv-balloon.c
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@ -1625,6 +1625,31 @@ static MemoryRegion *hv_balloon_md_get_memory_region(MemoryDeviceState *md,
return balloon->mr;
}
static void hv_balloon_md_fill_device_info(const MemoryDeviceState *md,
MemoryDeviceInfo *info)
{
HvBalloonDeviceInfo *hi = g_new0(HvBalloonDeviceInfo, 1);
const HvBalloon *balloon = HV_BALLOON(md);
DeviceState *dev = DEVICE(md);
if (dev->id) {
hi->id = g_strdup(dev->id);
}
if (balloon->hostmem) {
hi->memdev = object_get_canonical_path(OBJECT(balloon->hostmem));
hi->memaddr = balloon->addr;
hi->has_memaddr = true;
hi->max_size = memory_region_size(balloon->mr);
/* TODO: expose current provided size or something else? */
} else {
hi->max_size = 0;
}
info->u.hv_balloon.data = hi;
info->type = MEMORY_DEVICE_INFO_KIND_HV_BALLOON;
}
static void hv_balloon_decide_memslots(MemoryDeviceState *md,
unsigned int limit)
{
@ -1712,5 +1737,5 @@ static void hv_balloon_class_init(ObjectClass *klass, void *data)
mdc->get_memory_region = hv_balloon_md_get_memory_region;
mdc->decide_memslots = hv_balloon_decide_memslots;
mdc->get_memslots = hv_balloon_get_memslots;
/* implement fill_device_info */
mdc->fill_device_info = hv_balloon_md_fill_device_info;
}