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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: bbef882cc1 ("msi: add API to get notified about pending bit poll")
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Message-Id: <20241212120402.1475053-1-npiggin@gmail.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
(cherry picked from commit 42e2a7a0ab23784e44fcb18369e06067abc89305)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
This commit is contained in:
Nicholas Piggin 2024-12-12 22:04:02 +10:00 committed by Michael Tokarev
parent 91b2cb9a78
commit c8fb662a58
1 changed files with 1 additions and 1 deletions
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2
hw/pci/msix.c
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@ -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);
}