[pve-devel] [PATCH qemu-server] cfg2cmd: avoid using some x86 properties on other archs

Fiona Ebner f.ebner at proxmox.com
Mon Jan 13 14:56:38 CET 2025


As reported in the enterprise support, using arch aarch64 for a VM in
combination with a new enough Windows ostype would fail:

> qemu-system-aarch64: warning: driftfix 'slew' is not available with this machine
> qemu-system-aarch64: Property 'virt-5.1-machine.hpet' not found

Conditionalize setting these properties that only exist for x86(_64)
according to the QEMU sources (and tested for aarch64 and riscv64).

Reported-by: Hannes Dürr <h.duerr at proxmox.com>
Signed-off-by: Fiona Ebner <f.ebner at proxmox.com>
---
 PVE/QemuServer.pm | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/PVE/QemuServer.pm b/PVE/QemuServer.pm
index 5cde94a1..43008f3f 100644
--- a/PVE/QemuServer.pm
+++ b/PVE/QemuServer.pm
@@ -3901,10 +3901,10 @@ sub config_to_command {
 
     if ($winversion >= 6) {
 	push @$globalFlags, 'kvm-pit.lost_tick_policy=discard';
-	push @$machineFlags, 'hpet=off';
+	push @$machineFlags, 'hpet=off' if $arch eq 'x86_64';
     }
 
-    push @$rtcFlags, 'driftfix=slew' if $tdf;
+    push @$rtcFlags, 'driftfix=slew' if $tdf && $arch eq 'x86_64';
 
     if ($conf->{startdate} && $conf->{startdate} ne 'now') {
 	push @$rtcFlags, "base=$conf->{startdate}";
-- 
2.39.5





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