From 45d85f6228117dbe01d3680f1ad834389f69012f Mon Sep 17 00:00:00 2001
From: Jing Liu <jing2.liu@intel.com>
Date: Mon, 25 Sep 2023 22:14:04 -0400
Subject: vfio/pci: detect the support of dynamic MSI-X allocation
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Kernel provides the guidance of dynamic MSI-X allocation support of
passthrough device, by clearing the VFIO_IRQ_INFO_NORESIZE flag to
guide user space.

Fetch the flags from host to determine if dynamic MSI-X allocation is
supported.

Originally-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: Jing Liu <jing2.liu@intel.com>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Reviewed-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Cédric Le Goater <clg@redhat.com>
---
 hw/vfio/pci.h | 1 +
 1 file changed, 1 insertion(+)

(limited to 'hw/vfio/pci.h')

diff --git a/hw/vfio/pci.h b/hw/vfio/pci.h
index 2d836093a8..0d89eb761e 100644
--- a/hw/vfio/pci.h
+++ b/hw/vfio/pci.h
@@ -113,6 +113,7 @@ typedef struct VFIOMSIXInfo {
     uint32_t table_offset;
     uint32_t pba_offset;
     unsigned long *pending;
+    bool noresize;
 } VFIOMSIXInfo;
 
 #define TYPE_VFIO_PCI "vfio-pci"
-- 
cgit 1.4.1