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From: Fiona Ebner <f.ebner@proxmox.com>
To: pve-devel@lists.proxmox.com
Subject: [PATCH qemu-server 2/4] move get_host_phys_address_bits() to helpers module
Date: Mon, 23 Mar 2026 14:27:22 +0100	[thread overview]
Message-ID: <20260323132857.125747-3-f.ebner@proxmox.com> (raw)
In-Reply-To: <20260323132857.125747-1-f.ebner@proxmox.com>

To be re-used by a check in the CPU config module.

Signed-off-by: Fiona Ebner <f.ebner@proxmox.com>
---
 src/PVE/QemuServer/Helpers.pm        | 18 ++++++++++++++++++
 src/PVE/QemuServer/Memory.pm         | 23 +++--------------------
 src/test/run_config2command_tests.pl | 11 ++++++++---
 3 files changed, 29 insertions(+), 23 deletions(-)

diff --git a/src/PVE/QemuServer/Helpers.pm b/src/PVE/QemuServer/Helpers.pm
index e14e9ad4..65f4ce5f 100644
--- a/src/PVE/QemuServer/Helpers.pm
+++ b/src/PVE/QemuServer/Helpers.pm
@@ -369,4 +369,22 @@ sub get_iscsi_initiator_name {
     return $initiator;
 }
 
+my $_host_bits;
+
+sub get_host_phys_address_bits {
+    return $_host_bits if defined($_host_bits);
+
+    my $fh = IO::File->new('/proc/cpuinfo', "r") or return;
+    while (defined(my $line = <$fh>)) {
+        # hopefully we never need to care about mixed (big.LITTLE) archs
+        if ($line =~ m/^address sizes\s*:\s*(\d+)\s*bits physical/i) {
+            $_host_bits = int($1);
+            $fh->close();
+            return $_host_bits;
+        }
+    }
+    $fh->close();
+    return; # undef, cannot really do anything..
+}
+
 1;
diff --git a/src/PVE/QemuServer/Memory.pm b/src/PVE/QemuServer/Memory.pm
index 7ebfc545..ab337bea 100644
--- a/src/PVE/QemuServer/Memory.pm
+++ b/src/PVE/QemuServer/Memory.pm
@@ -93,24 +93,6 @@ sub parse_memory {
     return $res;
 }
 
-my $_host_bits;
-
-sub get_host_phys_address_bits {
-    return $_host_bits if defined($_host_bits);
-
-    my $fh = IO::File->new('/proc/cpuinfo', "r") or return;
-    while (defined(my $line = <$fh>)) {
-        # hopefully we never need to care about mixed (big.LITTLE) archs
-        if ($line =~ m/^address sizes\s*:\s*(\d+)\s*bits physical/i) {
-            $_host_bits = int($1);
-            $fh->close();
-            return $_host_bits;
-        }
-    }
-    $fh->close();
-    return; # undef, cannot really do anything..
-}
-
 my sub get_max_mem {
     my ($conf) = @_;
 
@@ -122,14 +104,15 @@ my sub get_max_mem {
     my $bits;
     if (my $phys_bits = $cpu->{'phys-bits'}) {
         if ($phys_bits eq 'host') {
-            $bits = get_host_phys_address_bits();
+            $bits = PVE::QemuServer::Helpers::get_host_phys_address_bits();
         } elsif ($phys_bits =~ /^(\d+)$/) {
             $bits = int($phys_bits);
         }
     }
 
     if (!defined($bits)) {
-        my $host_bits = get_host_phys_address_bits() // 36; # fixme: what fallback?
+        # fixme: what fallback?
+        my $host_bits = PVE::QemuServer::Helpers::get_host_phys_address_bits() // 36;
         if ($cpu->{cputype} && $cpu->{cputype} =~ /^(host|max)$/) {
             $bits = $host_bits;
         } else {
diff --git a/src/test/run_config2command_tests.pl b/src/test/run_config2command_tests.pl
index f7f3a2d5..3c4a695c 100755
--- a/src/test/run_config2command_tests.pl
+++ b/src/test/run_config2command_tests.pl
@@ -370,6 +370,14 @@ $qemu_server_config->mock(
     },
 );
 
+my $qemu_server_helpers;
+$qemu_server_helpers = Test::MockModule->new('PVE::QemuServer::Helpers');
+$qemu_server_helpers->mock(
+    get_host_phys_address_bits => sub {
+        return 46;
+    },
+);
+
 my $qemu_server_memory;
 $qemu_server_memory = Test::MockModule->new('PVE::QemuServer::Memory');
 $qemu_server_memory->mock(
@@ -380,9 +388,6 @@ $qemu_server_memory->mock(
         my ($id) = @_;
         return 1;
     },
-    get_host_phys_address_bits => sub {
-        return 46;
-    },
 );
 
 my $pve_common_tools;
-- 
2.47.3





  parent reply	other threads:[~2026-03-23 13:29 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-03-23 13:27 [PATCH-SERIES qemu-server 0/4] cpu config: warn that OVMF might limit phys-bits to 40 without pdpe1gb CPU flag Fiona Ebner
2026-03-23 13:27 ` [PATCH qemu-server 1/4] cpu config: split resolve_cpu_flags() function Fiona Ebner
2026-03-23 13:27 ` Fiona Ebner [this message]
2026-03-23 13:27 ` [PATCH qemu-server 3/4] cpu config: get cpu options: avoid shadowing $conf variable Fiona Ebner
2026-03-23 13:27 ` [PATCH qemu-server 4/4] cpu config: warn that OVMF might limit phys-bits to 40 without pdpe1gb CPU flag Fiona Ebner

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