From: Nicholas Piggin <npig...@gmail.com>
The end vector calculation has a bug that results in polling fewer
than required vectors when reading at a non-zero offset in PBA memory.
Fixes: bbef882cc193 ("msi: add API to get notified about pending bit poll")
Signed-off-by: Nicholas Piggin <npig...@gmail.com>
Message-Id: <20241212120402.1475053-1-npig...@gmail.com>
Reviewed-by: Philippe Mathieu-Daudé <phi...@linaro.org>
Reviewed-by: Michael S. Tsirkin <m...@redhat.com>
Signed-off-by: Michael S. Tsirkin <m...@redhat.com>
(cherry picked from commit 42e2a7a0ab23784e44fcb18369e06067abc89305)
Signed-off-by: Michael Tokarev <m...@tls.msk.ru>
diff --git a/hw/pci/msix.c b/hw/pci/msix.c
index 487e49834e..cc6e79ec67 100644
--- a/hw/pci/msix.c
+++ b/hw/pci/msix.c
@@ -250,7 +250,7 @@ static uint64_t msix_pba_mmio_read(void *opaque, hwaddr
addr,
PCIDevice *dev = opaque;
if (dev->msix_vector_poll_notifier) {
unsigned vector_start = addr * 8;
- unsigned vector_end = MIN(addr + size * 8, dev->msix_entries_nr);
+ unsigned vector_end = MIN((addr + size) * 8, dev->msix_entries_nr);
dev->msix_vector_poll_notifier(dev, vector_start, vector_end);
}
--
2.39.5
