From: Fabiano Rosas <farosas@suse.de>
To: Nicholas Piggin <npiggin@gmail.com>, qemu-devel@nongnu.org
Cc: Nicholas Piggin <npiggin@gmail.com>,
"Michael S. Tsirkin" <mst@redhat.com>,
Marcel Apfelbaum <marcel.apfelbaum@gmail.com>,
Laurent Vivier <lvivier@redhat.com>,
Paolo Bonzini <pbonzini@redhat.com>,
Gerd Hoffmann <kraxel@redhat.com>
Subject: Re: [RFC PATCH 2/5] qtest/libqos/pci: Fix msix_enable sharing bar0
Date: Wed, 13 Nov 2024 19:14:44 -0300 [thread overview]
Message-ID: <871pzeixwr.fsf@suse.de> (raw)
In-Reply-To: <20241108154229.263097-3-npiggin@gmail.com>
Nicholas Piggin <npiggin@gmail.com> writes:
> Devices where the MSI-X addresses are shared with other MMIO on BAR0
> can not use msi_enable because it unmaps and remaps BAR0, which
> interferes with device MMIO mappings. xhci-nec is one such device we
> would like to test msix with.
>
> Keep track of each the BAR iomaps for each device and add code in msix
> to use existing iomap if the msix bars are already mapped.
>
> Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Reviewed-by: Fabiano Rosas <farosas@suse.de>
next prev parent reply other threads:[~2024-11-13 22:15 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-11-08 15:42 [RFC PATCH 0/5] Add XHCI TR NOOP support, plus PCI, MSIX changes Nicholas Piggin
2024-11-08 15:42 ` [RFC PATCH 1/5] qtest/pci: Enforce balanced iomap/unmap Nicholas Piggin
2024-11-11 14:09 ` Fabiano Rosas
2024-11-08 15:42 ` [RFC PATCH 2/5] qtest/libqos/pci: Fix msix_enable sharing bar0 Nicholas Piggin
2024-11-13 22:14 ` Fabiano Rosas [this message]
2024-11-08 15:42 ` [RFC PATCH 3/5] pci/msix: Implement PBA writes Nicholas Piggin
2024-11-08 15:42 ` [RFC PATCH 4/5] qtest/xhci: Add controller and device setup and ring tests Nicholas Piggin
2024-11-11 14:32 ` Fabiano Rosas
2024-11-27 1:46 ` Nicholas Piggin
2024-11-08 15:42 ` [RFC PATCH 5/5] hw/usb: Support XHCI TR NOOP commands Nicholas Piggin
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