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-rw-r--r--hw/msix.c12
1 files changed, 7 insertions, 5 deletions
diff --git a/hw/msix.c b/hw/msix.c
index c031842761..e1308572ef 100644
--- a/hw/msix.c
+++ b/hw/msix.c
@@ -284,11 +284,13 @@ int msix_uninit(PCIDevice *dev)
void msix_save(PCIDevice *dev, QEMUFile *f)
{
- unsigned nentries = (pci_get_word(dev->config + PCI_MSIX_FLAGS) &
- PCI_MSIX_FLAGS_QSIZE) + 1;
- qemu_put_buffer(f, dev->msix_table_page, nentries * MSIX_ENTRY_SIZE);
- qemu_put_buffer(f, dev->msix_table_page + MSIX_PAGE_PENDING,
- (nentries + 7) / 8);
+ unsigned n = dev->msix_entries_nr;
+
+ if (!dev->cap_present & QEMU_PCI_CAP_MSIX)
+ return;
+
+ qemu_put_buffer(f, dev->msix_table_page, n * MSIX_ENTRY_SIZE);
+ qemu_put_buffer(f, dev->msix_table_page + MSIX_PAGE_PENDING, (n + 7) / 8);
}
/* Should be called after restoring the config space. */