Per xHCI spec v1.2 chapter 4.17.5 page 296:
If MSI or MSI-X interrupts are enabled, Interrupt Pending (IP)
shall be cleared automatically when the PCI dword write generated
by the interrupt assertion is complete.
Currently QEMU does not clear the IP flag in the MSI / MSI-X mode.
This causes subsequent spurious interrupt to be delivered to guests.
To solve this, we change the xhci intr_raise() hook routine to have
a bool return value that is passed to its caller (the xhci core),
with true indicating that IP should be self-cleared.
Fixes: 62c6ae04cf ("xhci: Initial xHCI implementation")
Fixes: 4c47f80063 ("xhci: add msix support")
Signed-off-by: Ruimei Yan <ruimei.yan@windriver.com>
[bmeng: move IP clear codes from xhci pci to xhci core]
Signed-off-by: Bin Meng <bin.meng@windriver.com>
Message-Id: <20210521024224.2277634-2-bmeng.cn@gmail.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
At present MSI / MSI-X interrupts are triggered regardless of the
irq level. We should have checked the level to determine whether
the interrupt needs to be delivered.
The level check logic was present in early versions of the xhci
model, but got dropped later by a rework of interrupt handling
under commit 4c4abe7cc9 ("xhci: rework interrupt handling").
Fixes: 4c4abe7cc9 ("xhci: rework interrupt handling")
Signed-off-by: Ruimei Yan <ruimei.yan@windriver.com>
Signed-off-by: Bin Meng <bin.meng@windriver.com>
Message-Id: <20210521024224.2277634-1-bmeng.cn@gmail.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Device code shouldn't mess with QOM property "realized" since we have
proper interfaces (merge commit 6675a653). Commit 8ddab8dd3d
"usb/hcd-xhci: Split pci wrapper for xhci base model" and commit
f00ff136ee "usb: hcd-xhci-sysbus: Attach xhci to sysbus device"
reintroduced two instances. Clean them up. Note that s->xhci is
a (bus-less) TYPE_XHCI device.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20210119120151.53757-1-armbru@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
There is no "version 2" of the "Lesser" General Public License.
It is either "GPL version 2.0" or "Lesser GPL version 2.1".
This patch replaces all occurrences of "Lesser GPL version 2" with
"Lesser GPL version 2.1" in comment section.
Signed-off-by: Chetan Pant <chetan4windows@gmail.com>
Message-Id: <20201023122332.19369-1-chetan4windows@gmail.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Move a bunch of defines which might be needed outside core xhci
code to that place. Add XHCI_ prefixes to avoid name clashes.
No functional change.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Sai Pavan Boddu <sai.pavan.boddu@xilinx.com>
Message-id: 20201020074844.5304-3-kraxel@redhat.com
This patch sets the base to use xhci as sysbus model, for which pci
specific hooks are moved to hcd-xhci-pci.c. As a part of this requirment
msi/msix interrupts handling is moved under XHCIPCIState. Made required
changes for qemu-xhci-nec.
Signed-off-by: Sai Pavan Boddu <sai.pavan.boddu@xilinx.com>
Message-id: 1600957256-6494-4-git-send-email-sai.pavan.boddu@xilinx.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Move pci specific devices to new file. This set the environment to move all
pci specific hooks in hcd-xhci.c to hcd-xhci-pci.c.
Signed-off-by: Sai Pavan Boddu <sai.pavan.boddu@xilinx.com>
Message-id: 1600957256-6494-3-git-send-email-sai.pavan.boddu@xilinx.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
