From 0e162cc4f4df610f07f4796ec3ded97dc3ce28d5 Mon Sep 17 00:00:00 2001
From: upstream <upstream@localhost>
Date: Sat, 26 Sep 2026 08:41:15 +0000
Subject: [PATCH] Upstream proxmox-git/qemu-server state of the touched files
 before 167f3d70a5

---
 src/PVE/QemuServer/Memory.pm | 15 +++++++--
 src/test/run_memory_tests.pl | 60 ++++++++++++++++++++++++++++++++++++
 2 files changed, 72 insertions(+), 3 deletions(-)
 create mode 100644 src/test/run_memory_tests.pl

diff --git a/src/PVE/QemuServer/Memory.pm b/src/PVE/QemuServer/Memory.pm
index 9b7c24f..585589e 100644
--- a/src/PVE/QemuServer/Memory.pm
+++ b/src/PVE/QemuServer/Memory.pm
@@ -438,7 +438,16 @@ sub config {
                 # > specify a policy other than default
                 my $policy = $numa->{policy};
                 die "you need to define a policy for hostnode $hostnodes\n" if !$policy;
-                $mem_object .= ",host-nodes=$hostnodes,policy=$policy";
+
+                # QEMU splits object options at commas, so each range needs its own host-nodes key
+                my $host_node_ranges = join(
+                    ',host-nodes=',
+                    map {
+                        my ($start, $end) = @$_;
+                        defined($end) ? "$start-$end" : $start
+                    } @$hostnodelists,
+                );
+                $mem_object .= ",host-nodes=$host_node_ranges,policy=$policy";
             } else {
                 die "numa hostnodes need to be defined to use hugepages" if $conf->{hugepages};
             }
@@ -518,7 +527,7 @@ sub print_numa_hostnodes {
     my $hostnodes;
     foreach my $hostnoderange (@$hostnodelists) {
         my ($start, $end) = @$hostnoderange;
-        $hostnodes .= ',' if $hostnodes;
+        $hostnodes .= ',' if defined($hostnodes);
         $hostnodes .= $start;
         $hostnodes .= "-$end" if defined($end);
         $end //= $start;
@@ -640,7 +649,7 @@ sub hugepages_topology {
         my $hostnodes = print_numa_hostnodes($hostnodelists);
 
         die "more than 1 hostnode value in numa node is not supported when hugepages are enabled"
-            if $hostnodes !~ m/^\d+$/;
+            if $hostnodes !~ m/^(\d)$/;
         my $hugepages_size = hugepages_size($conf, $numa_memory);
         $hugepages_topology->{$hugepages_size}->{$hostnodes} +=
             hugepages_nr($numa_memory, $hugepages_size);
diff --git a/src/test/run_memory_tests.pl b/src/test/run_memory_tests.pl
new file mode 100644
index 0000000..e8484e8
--- /dev/null
+++ b/src/test/run_memory_tests.pl
@@ -0,0 +1,60 @@
+#!/usr/bin/perl
+
+use strict;
+use warnings;
+
+use lib qw(..);
+
+use Test::MockModule;
+use Test::More;
+
+use PVE::QemuServer::Memory;
+
+my $memory_module = Test::MockModule->new('PVE::QemuServer::Memory');
+$memory_module->mock('host_numanode_exists', sub { return 1; });
+$memory_module->mock('hugepages_chunk_size_supported', sub { return 1; });
+
+my $tests = [
+    ['0', '0', 1],
+    ['9', '9', 1],
+    ['0;1', '0,1', 0],
+    ['0;10', '0,10', 0],
+    ['0;1;10', '0,1,10', 0],
+    ['1;2', '1,2', 0],
+    ['0-1', '0-1', 0],
+    ['0;1-2', '0,1-2', 0],
+];
+
+for my $test (@$tests) {
+    my ($hostnodes, $expected, $single_node) = @$test;
+
+    subtest "host nodes $hostnodes" => sub {
+        my $numa_config = "cpus=0,memory=1024,hostnodes=$hostnodes,policy=bind";
+        my $numa = PVE::QemuServer::Memory::parse_numa($numa_config);
+        is(
+            PVE::QemuServer::Memory::print_numa_hostnodes($numa->{hostnodes}),
+            $expected,
+            'preserve node and range separators',
+        );
+
+        my $conf = {
+            numa => 1,
+            memory => 1024,
+            hugepages => 2,
+            numa0 => $numa_config,
+        };
+        my $topology = eval { PVE::QemuServer::Memory::hugepages_topology($conf, 0); };
+        if ($single_node) {
+            is($@, '', 'accept a single host node for hugepages');
+            is_deeply($topology, { 2 => { $hostnodes => 512 } }, 'use the requested host node');
+        } else {
+            like(
+                $@,
+                qr/^more than 1 hostnode value in numa node is not supported when hugepages are enabled/,
+                'reject host node lists and ranges for hugepages',
+            );
+        }
+    };
+}
+
+done_testing();