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From: Dominik Csapak <d.csapak@proxmox.com>
To: pve-devel@lists.proxmox.com
Date: Tue, 21 Jun 2022 16:07:04 +0200
Message-Id: <20220621140704.142671-1-d.csapak@proxmox.com>
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Subject: [pve-devel] [PATCH qemu-server] fix #3577: prevent vms with pci
passthrough to suspend to disk
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while it may work to suspend, resume will most likely not work, because
we do/can not save/restore the hardware state of the devices
instead, prevent the user from suspending the vm at all.
Signed-off-by: Dominik Csapak <d.csapak@proxmox.com>
---
PVE/API2/Qemu.pm | 9 ++++++++-
1 file changed, 8 insertions(+), 1 deletion(-)
diff --git a/PVE/API2/Qemu.pm b/PVE/API2/Qemu.pm
index 99b426e..24d0f59 100644
--- a/PVE/API2/Qemu.pm
+++ b/PVE/API2/Qemu.pm
@@ -2977,10 +2977,17 @@ __PACKAGE__->register_method({
# early check for storage permission, for better user feedback
if ($todisk) {
$rpcenv->check_vm_perm($authuser, $vmid, undef, ['VM.Config.Disk']);
+ my $conf = PVE::QemuConfig->load_config($vmid);
+
+ # check for hostpci devices (suspend will maybe work, resume won't),
+ # so prevent users from suspending in the first place
+ for my $key (keys %$conf) {
+ next if $key !~ /^hostpci\d+/;
+ die "Cannot suspend VM to disk with assigned PCI devices\n";
+ }
if (!$statestorage) {
# get statestorage from config if none is given
- my $conf = PVE::QemuConfig->load_config($vmid);
my $storecfg = PVE::Storage::config();
$statestorage = PVE::QemuServer::find_vmstate_storage($conf, $storecfg);
}
--
2.30.2