},
};
+my $ivshmem_fmt = {
+ size => {
+ type => 'integer',
+ minimum => 1,
+ description => "The size of the file in MB.",
+ },
+ name => {
+ type => 'string',
+ pattern => '[a-zA-Z0-9\-]+',
+ optional => 1,
+ format_description => 'string',
+ description => "The name of the file. Will be prefixed with 'pve-shm-'. Default is the VMID. Will be deleted when the VM is stopped.",
+ },
+};
+
my $confdesc = {
onboot => {
optional => 1,
optional => 1,
description => "Script that will be executed during various steps in the vms lifetime.",
},
+ ivshmem => {
+ type => 'string',
+ format => $ivshmem_fmt,
+ description => "Inter-VM shared memory. Useful for direct communication between VMs, or to the host.",
+ optional => 1,
+ }
};
my $confdesc_cloudinit = {
$loc_res = 1 if $conf->{hostusb}; # old syntax
$loc_res = 1 if $conf->{hostpci}; # old syntax
+ $loc_res = 1 if $conf->{ivshmem};
+
foreach my $k (keys %$conf) {
next if $k =~ m/^usb/ && ($conf->{$k} eq 'spice');
# sockets are safe: they will recreated be on the target side post-migrate
push @$devices, '-device', $netdevicefull;
}
+ if ($conf->{ivshmem}) {
+ my $ivshmem = PVE::JSONSchema::parse_property_string($ivshmem_fmt, $conf->{ivshmem});
+ my $bus;
+ if ($q35) {
+ $bus = print_pcie_addr("ivshmem");
+ } else {
+ $bus = print_pci_addr("ivshmem", $bridges, $arch, $machine_type);
+ }
+ my $path = '/dev/shm/pve-shm-';
+ if ($ivshmem->{name}) {
+ $path .= $ivshmem->{name};
+ } else {
+ $path .= $vmid;
+ }
+ push @$devices, '-device', "ivshmem-plain,memdev=ivshmem$bus,";
+ push @$devices, '-object', "memory-backend-file,id=ivshmem,share=on,mem-path=$path,size=$ivshmem->{size}M";
+ }
+
if (!$q35) {
# add pci bridges
if (qemu_machine_feature_enabled ($machine_type, $kvmver, 2, 3)) {
unlink "/var/run/qemu-server/${vmid}.$ext";
}
+ if ($conf->{ivshmem}) {
+ my $ivshmem = PVE::JSONSchema::parse_property_string($ivshmem_fmt, $conf->{ivshmem});
+ unlink '/dev/shm/pve-shm-' . ($ivshmem->{name} // $vmid);
+ }
+
foreach my $key (keys %$conf) {
next if $key !~ m/^hostpci(\d+)$/;
my $hostpciindex = $1;
'virtio13' => { bus => 2, addr => 8 },
'virtio14' => { bus => 2, addr => 9 },
'virtio15' => { bus => 2, addr => 10 },
+ 'ivshmem' => { bus => 2, addr => 11 },
'virtioscsi0' => { bus => 3, addr => 1 },
'virtioscsi1' => { bus => 3, addr => 2 },
'virtioscsi2' => { bus => 3, addr => 3 },
hostpci1bus0 => { bus => "pcie.0", addr => 17 },
hostpci2bus0 => { bus => "pcie.0", addr => 18 },
hostpci3bus0 => { bus => "pcie.0", addr => 19 },
+ ivshmem => { bus => 'pcie.0', addr => 20 },
};
if (defined($devices->{$id}->{bus}) && defined($devices->{$id}->{addr})) {