From: Nicholas Piggin Date: Thu, 12 Dec 2024 12:04:02 +0000 (+1000) Subject: pci/msix: Fix msix pba read vector poll end calculation X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=42e2a7a0ab23784e44fcb18369e06067abc89305;p=qemu.git pci/msix: Fix msix pba read vector poll end calculation 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 Message-Id: <20241212120402.1475053-1-npiggin@gmail.com> Reviewed-by: Philippe Mathieu-Daudé Reviewed-by: Michael S. Tsirkin Signed-off-by: Michael S. Tsirkin --- diff --git a/hw/pci/msix.c b/hw/pci/msix.c index d8a55a6474..57ec7084a4 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); }