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From f52197675b2babfafb1b89058e3fd01decebd8ab Mon Sep 17 00:00:00 2001
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Message-Id: <f52197675b2babfafb1b89058e3fd01decebd8ab@dist-git>
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From: Laine Stump <laine@redhat.com>
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Date: Sun, 26 Apr 2020 13:04:12 -0400
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Subject: [PATCH] conf: simplify logic when checking for AUTOASSIGN PCI
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addresses
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Old behavior: If the address was manually provided by config, copy
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device AUTOASSIGN flag into the bus flag, and then later on in the
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function *always* check for a match of the flags (which will always
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match if the address came from config, since we just copied it).
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New behavior: Don't mess with the bus flags - just directly check if
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the AUTOASSIGN flag matches in bus and dev, but only make the check if
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the address didn't come from config (i.e. it was auto-assigned by
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libvirt).
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Signed-off-by: Laine Stump <laine@redhat.com>
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Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
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(cherry picked from commit fcdf87d3ef14de9dfb0acaf4b4445e1580dfc629)
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https://bugzilla.redhat.com/1802592
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Signed-off-by: Laine Stump <laine@redhat.com>
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Message-Id: <20200426170415.18328-10-laine@redhat.com>
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Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
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---
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src/conf/domain_addr.c | 27 ++++++++++-----------------
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1 file changed, 10 insertions(+), 17 deletions(-)
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diff --git a/src/conf/domain_addr.c b/src/conf/domain_addr.c
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index 53be6cd34b..05f036e3e6 100644
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--- a/src/conf/domain_addr.c
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+++ b/src/conf/domain_addr.c
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@@ -358,18 +358,22 @@ virDomainPCIAddressFlagsCompatible(virPCIDeviceAddressPtr addr,
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*/
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if (busFlags & VIR_PCI_CONNECT_TYPES_ENDPOINT)
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busFlags |= VIR_PCI_CONNECT_TYPES_ENDPOINT;
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- /* Also allow manual specification of bus to override
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- * libvirt's assumptions about whether or not hotplug
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- * capability will be required.
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- */
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- if (devFlags & VIR_PCI_CONNECT_AUTOASSIGN)
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- busFlags |= VIR_PCI_CONNECT_AUTOASSIGN;
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/* if the device is a pci-bridge, allow manually
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* assigning to any bus that would also accept a
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* standard PCI device.
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*/
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if (devFlags & VIR_PCI_CONNECT_TYPE_PCI_BRIDGE)
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devFlags |= VIR_PCI_CONNECT_TYPE_PCI_DEVICE;
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+ } else if ((devFlags & VIR_PCI_CONNECT_AUTOASSIGN) &&
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+ !(busFlags & VIR_PCI_CONNECT_AUTOASSIGN)) {
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+ if (reportError) {
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+ virReportError(errType,
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+ _("The device at PCI address %s was auto-assigned "
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+ "this address, but the PCI controller "
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+ "with index='%d' doesn't allow auto-assignment"),
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+ addrStr, addr->bus);
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+ }
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+ return false;
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}
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/* If this bus doesn't allow the type of connection (PCI
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@@ -419,17 +423,6 @@ virDomainPCIAddressFlagsCompatible(virPCIDeviceAddressPtr addr,
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addrStr, addr->bus, connectStr);
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return false;
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}
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- if ((devFlags & VIR_PCI_CONNECT_AUTOASSIGN) &&
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- !(busFlags & VIR_PCI_CONNECT_AUTOASSIGN)) {
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- if (reportError) {
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- virReportError(errType,
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- _("The device at PCI address %s requires "
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- "hotplug capability, but the PCI controller "
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- "with index='%d' doesn't support hotplug"),
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- addrStr, addr->bus);
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- }
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- return false;
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- }
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return true;
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}
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--
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2.26.2
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