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Subject: [pve-devel] [PATCH qemu-server 04/14] blockdev : convert
qemu_driveadd && qemu_drivedel
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From: Alexandre Derumier <alexandre.derumier@groupe-cyllene.com>
To: pve-devel@lists.proxmox.com
Subject: [PATCH qemu-server 04/14] blockdev : convert qemu_driveadd && qemu_drivedel
Date: Tue, 22 Apr 2025 13:51:29 +0200
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fixme:
backup seem to use a tpmstate0-backup drive. Not sure how it's works, but
I think it could be converted to blockdev too
Signed-off-by: Alexandre Derumier <alexandre.derumier@groupe-cyllene.com>
---
PVE/QemuServer.pm | 37 +++++++++++++++----------------------
PVE/QemuServer/Drive.pm | 1 +
2 files changed, 16 insertions(+), 22 deletions(-)
diff --git a/PVE/QemuServer.pm b/PVE/QemuServer.pm
index 85745ee4..f12e27f2 100644
--- a/PVE/QemuServer.pm
+++ b/PVE/QemuServer.pm
@@ -55,7 +55,7 @@ use PVE::QemuServer::Helpers qw(config_aware_timeout min_version kvm_user_versio
use PVE::QemuServer::Cloudinit;
use PVE::QemuServer::CGroup;
use PVE::QemuServer::CPUConfig qw(print_cpu_device get_cpu_options get_cpu_bitness is_native_arch get_amd_sev_object get_amd_sev_type);
-use PVE::QemuServer::Drive qw(is_valid_drivename checked_volume_format drive_is_cloudinit drive_is_cdrom drive_is_read_only parse_drive print_drive print_drive_throttle_group generate_drive_blockdev);
+use PVE::QemuServer::Drive qw(is_valid_drivename checked_volume_format drive_is_cloudinit drive_is_cdrom drive_is_read_only parse_drive print_drive print_drive_throttle_group generate_drive_blockdev generate_throttle_group);
use PVE::QemuServer::Machine;
use PVE::QemuServer::Memory qw(get_current_memory);
use PVE::QemuServer::MetaInfo;
@@ -4204,32 +4204,25 @@ sub qemu_iothread_del {
}
sub qemu_driveadd {
- my ($storecfg, $vmid, $device) = @_;
+ my ($storecfg, $vmid, $drive) = @_;
- my $kvmver = get_running_qemu_version($vmid);
- my $io_uring = min_version($kvmver, 6, 0);
- my $drive = print_drive_commandline_full($storecfg, $vmid, $device, undef, $io_uring);
- $drive =~ s/\\/\\\\/g;
- my $ret = PVE::QemuServer::Monitor::hmp_cmd($vmid, "drive_add auto \"$drive\"", 60);
-
- # If the command succeeds qemu prints: "OK"
- return 1 if $ret =~ m/OK/s;
-
- die "adding drive failed: $ret\n";
+ my $drive_id = PVE::QemuServer::Drive::get_drive_id($drive);
+ # always add a throttle-group, as it's mandatory for the throttle-filter root node.
+ my $throttle_group = generate_throttle_group($drive);
+ mon_cmd($vmid, 'object-add', "qom-type" => "throttle-group", %$throttle_group);
+
+ # The throttle filter is the root node with a stable name attached to the device,
+ # and currently it's not possible to insert it later
+ my $blockdev = generate_drive_blockdev($storecfg, $drive);
+ mon_cmd($vmid, 'blockdev-add', %$blockdev, timeout => 10 * 60);
+ return 1;
}
sub qemu_drivedel {
my ($vmid, $deviceid) = @_;
- my $ret = PVE::QemuServer::Monitor::hmp_cmd($vmid, "drive_del drive-$deviceid", 10 * 60);
- $ret =~ s/^\s+//;
-
- return 1 if $ret eq "";
-
- # NB: device not found errors mean the drive was auto-deleted and we ignore the error
- return 1 if $ret =~ m/Device \'.*?\' not found/s;
-
- die "deleting drive $deviceid failed : $ret\n";
+ mon_cmd($vmid, 'blockdev-del', 'node-name' => "drive-$deviceid", timeout => 10 * 60);
+ mon_cmd($vmid, 'object-del', id => "throttle-drive-$deviceid");
}
sub qemu_deviceaddverify {
@@ -4464,7 +4457,7 @@ sub qemu_block_set_io_throttle {
return if !check_running($vmid) ;
- mon_cmd($vmid, "block_set_io_throttle", device => $deviceid,
+ mon_cmd($vmid, "block_set_io_throttle", id => $deviceid,
bps => int($bps),
bps_rd => int($bps_rd),
bps_wr => int($bps_wr),
diff --git a/PVE/QemuServer/Drive.pm b/PVE/QemuServer/Drive.pm
index 72434f52..146b266b 100644
--- a/PVE/QemuServer/Drive.pm
+++ b/PVE/QemuServer/Drive.pm
@@ -26,6 +26,7 @@ parse_drive
print_drive
print_drive_throttle_group
generate_drive_blockdev
+generate_throttle_group
);
our $QEMU_FORMAT_RE = qr/raw|qcow|qcow2|qed|vmdk|cloop/;
--
2.39.5
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