[Problem Description]
I read qemu-doc.texi in qemu-mster source code, which have a explain of
migrating ivshmem below
“With device property @option{master=on}, the guest will copy the shared.memory
on migration to the destination host. With @option{master=off}, the guest will
not be able to migrate with the device attached.”
However, libvirt library can not recognize the property “master=on”. When I
directly used command "qemu-kvm -device
ivshmem-plain,id=shmem0,memdev=shmmem-shmem0,master=on,bus=pci.0,addr=0xa” to
launch a guest, qemu support ivshmem property master=on.
So, I suggest adding code to support property master=on in libvirt.
[Code Review]
The below is the part of source code in qemu-master. There's no definition
here about ivshmem master.
domain_conf.h
struct _virDomainShmemDef {
char *name;
unsigned long long size;
int model; /* enum virDomainShmemModel */
struct {
bool enabled;
virDomainChrSourceDef chr;
} server;
struct {
bool enabled;
unsigned vectors;
virTristateSwitch ioeventfd;
} msi;
virDomainDeviceInfo info;
};
[changed code]
src/conf/domain_conf.c
src/conf/domain_conf.h
[Detail of Source Code Modification]
src/conf/domain_conf.h
[cid:image001.png@01D4BA48.57FBFA10]
src/conf/domain_conf.c
[cid:image002.png@01D4BA48.5B8017C0]
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