From: Dominik Csapak <d.csapak@proxmox.com>
To: pve-devel@lists.proxmox.com
Subject: [pve-devel] [PATCH qemu-server v5 1/1] pci: don't hard require resetting devices for passthrough
Date: Mon, 11 Nov 2024 12:05:20 +0100 [thread overview]
Message-ID: <20241111110520.1803627-4-d.csapak@proxmox.com> (raw)
In-Reply-To: <20241111110520.1803627-1-d.csapak@proxmox.com>
Since pve-common commit:
eff5957 (sysfstools: file_write: properly catch errors)
this check here fails now when the reset does not work. It turns out
that resetting the device is not always necessary, and we previously
ignored most errors when trying to do so.
To restore that functionality, downgrade this `die` to a warning.
If the device really needs a reset to work, it will either fail later
during startup, or not work correctly in the guest, but that behavior
existed before and is AFAIK not really detectable from our side.
Also improve the warning message a bit to not scare users and explain
that we're continuing.
Signed-off-by: Dominik Csapak <d.csapak@proxmox.com>
---
no changes since v4
PVE/QemuServer/PCI.pm | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/PVE/QemuServer/PCI.pm b/PVE/QemuServer/PCI.pm
index 75eac134..8c94fdd8 100644
--- a/PVE/QemuServer/PCI.pm
+++ b/PVE/QemuServer/PCI.pm
@@ -728,7 +728,7 @@ sub prepare_pci_device {
} else {
die "can't unbind/bind PCI group to VFIO '$pciid'\n"
if !PVE::SysFSTools::pci_dev_group_bind_to_vfio($pciid);
- die "can't reset PCI device '$pciid'\n"
+ warn "couldn't reset PCI device '$pciid', trying to continue (not all devices need a reset).\n"
if $info->{has_fl_reset} && !PVE::SysFSTools::pci_dev_reset($info);
}
--
2.39.5
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next prev parent reply other threads:[~2024-11-11 11:05 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-11-11 11:05 [pve-devel] [PATCH common/qemu-server v5] improve sysfs write behaviour Dominik Csapak
2024-11-11 11:05 ` [pve-devel] [PATCH common v5 1/2] sysfstools: file_write: extend with logging Dominik Csapak
2024-11-11 11:05 ` [pve-devel] [PATCH common v5 2/2] sysfstools: fix regression on binding to vfio-pci Dominik Csapak
2024-11-11 11:05 ` Dominik Csapak [this message]
2024-11-11 19:34 ` [pve-devel] applied-series: [PATCH common/qemu-server v5] improve sysfs write behaviour Thomas Lamprecht
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