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Re: [RFC KERNEL PATCH v6 2/3] xen/pvh: Setup gsi for passthrough device
- To: Jiqian Chen <Jiqian.Chen@xxxxxxx>, Stefano Stabellini <sstabellini@xxxxxxxxxx>, Bjorn Helgaas <bhelgaas@xxxxxxxxxx>, "Rafael J . Wysocki" <rafael@xxxxxxxxxx>, Roger Pau Monné <roger.pau@xxxxxxxxxx>
- From: Juergen Gross <jgross@xxxxxxxx>
- Date: Fri, 10 May 2024 09:48:29 +0200
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- Cc: xen-devel@xxxxxxxxxxxxxxxxxxxx, linux-pci@xxxxxxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx, linux-acpi@xxxxxxxxxxxxxxx, Huang Rui <Ray.Huang@xxxxxxx>
- Delivery-date: Fri, 10 May 2024 07:48:39 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
On 19.04.24 05:36, Jiqian Chen wrote:
In PVH dom0, the gsis don't get registered, but the gsi of
a passthrough device must be configured for it to be able to be
mapped into a domU.
When assign a device to passthrough, proactively setup the gsi
of the device during that process.
Co-developed-by: Huang Rui <ray.huang@xxxxxxx>
Signed-off-by: Jiqian Chen <Jiqian.Chen@xxxxxxx>
Reviewed-by: Stefano Stabellini <sstabellini@xxxxxxxxxx>
This patch is breaking the build.
On Arm I get:
In file included from
/home/gross/korg/src/drivers/xen/xen-pciback/pci_stub.c:23:0:
/home/gross/korg/src/include/xen/acpi.h: In function 'xen_acpi_sleep_register':
/home/gross/korg/src/include/xen/acpi.h:67:3: error: 'acpi_suspend_lowlevel'
undeclared (first use in this function); did you mean 'xen_acpi_suspend_lowlevel'?
acpi_suspend_lowlevel = xen_acpi_suspend_lowlevel;
^~~~~~~~~~~~~~~~~~~~~
xen_acpi_suspend_lowlevel
/home/gross/korg/src/include/xen/acpi.h:67:3: note: each undeclared identifier
is reported only once for each function it appears in
make[6]: *** [/home/gross/korg/src/scripts/Makefile.build:244:
drivers/xen/xen-pciback/pci_stub.o] Error 1
make[5]: *** [/home/gross/korg/src/scripts/Makefile.build:485:
drivers/xen/xen-pciback] Error 2
make[4]: *** [/home/gross/korg/src/scripts/Makefile.build:485: drivers/xen]
Error 2
Additionally I'm seeing this warning on x86_64:
/home/gross/korg/src/arch/x86/xen/enlighten_pvh.c:97:5: warning: no previous
prototype for ‘xen_pvh_passthrough_gsi’ [-Wmissing-prototypes]
int xen_pvh_passthrough_gsi(struct pci_dev *dev)
Juergen
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