[pve-devel] [PATCH qemu-server v6 05/10] pci: set 'enable-migration' to on for live-migration marked mapped devices
Fiona Ebner
f.ebner at proxmox.com
Fri Mar 7 12:20:24 CET 2025
Am 13.02.25 um 14:17 schrieb Dominik Csapak:
> the default is 'auto', but for those which are marked as capable for
> live migration, we want to explicitly enable that, so we get an early
> error on start if the driver does not support that.
>
> Signed-off-by: Dominik Csapak <d.csapak at proxmox.com>
Reviewed-by: Fiona Ebner <f.ebner at proxmox.com>
> ---
> no changes in v6
> PVE/QemuServer/PCI.pm | 8 +++++++-
> 1 file changed, 7 insertions(+), 1 deletion(-)
>
> diff --git a/PVE/QemuServer/PCI.pm b/PVE/QemuServer/PCI.pm
> index a0d99692..6bde248b 100644
> --- a/PVE/QemuServer/PCI.pm
> +++ b/PVE/QemuServer/PCI.pm
> @@ -433,9 +433,11 @@ sub parse_hostpci {
> die "PCI device mapping not found for '$mapping'\n" if !$devices || !scalar($devices->@*);
>
> my $config = PVE::Mapping::PCI::config();
> + my $cfg = $config->{ids}->{$mapping};
Style nit: bit confusing to have such similarly named variables
> + $res->{'live-migration-capable'} = 1 if $cfg->{'live-migration-capable'};
>
> for my $device ($devices->@*) {
> - eval { PVE::Mapping::PCI::assert_valid($mapping, $device, $config->{ids}->{$mapping}) };
> + eval { PVE::Mapping::PCI::assert_valid($mapping, $device, $cfg) };
> die "PCI device mapping invalid (hardware probably changed): $@\n" if $@;
> push $alternatives->@*, [split(/;/, $device->{path})];
> }
> @@ -692,6 +694,10 @@ sub print_hostpci_devices {
> $devicestr .= ",host=$pcidevice->{id}";
> }
>
> + if ($d->{'live-migration-capable'}) {
> + $devicestr .= ",enable-migration=on"
Style nit: missing semicolon
> + }
> +
> my $mf_addr = $multifunction ? ".$j" : '';
> $devicestr .= ",id=${id}${mf_addr}${pciaddr}${mf_addr}";
>
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