[pve-devel] [PATCH qemu-server 1/1] enable balloon free-page-reporting
Alexandre Derumier
aderumier at odiso.com
Wed Mar 2 07:46:25 CET 2022
Allow balloon device driver to report hints of guest free pages to the host,
for auto memory reclaim
https://lwn.net/Articles/759413/
https://events19.linuxfoundation.org/wp-content/uploads/2017/12/KVMForum2018.pdf
Signed-off-by: Alexandre Derumier <aderumier at odiso.com>
---
PVE/QemuServer.pm | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/PVE/QemuServer.pm b/PVE/QemuServer.pm
index 42f0fbd..bb44e58 100644
--- a/PVE/QemuServer.pm
+++ b/PVE/QemuServer.pm
@@ -3846,7 +3846,7 @@ sub config_to_command {
# enable balloon by default, unless explicitly disabled
if (!defined($conf->{balloon}) || $conf->{balloon}) {
my $pciaddr = print_pci_addr("balloon0", $bridges, $arch, $machine_type);
- push @$devices, '-device', "virtio-balloon-pci,id=balloon0$pciaddr";
+ push @$devices, '-device', "virtio-balloon-pci,free-page-reporting=on,id=balloon0$pciaddr";
}
if ($conf->{watchdog}) {
--
2.30.2
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