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authorJiqian Chen <Jiqian.Chen@amd.com>2024-09-24 14:14:36 +0800
committerJuergen Gross <jgross@suse.com>2024-09-25 09:54:52 +0200
commitb166b8ab4189743a717cb93f50d6fcca3a46770d (patch)
treea741953e26c6d97544b26f472b7cc710dae746d7 /include
parent88801d043b1d16caae76a5e2e5991e8b1f55ce7f (diff)
xen/pvh: Setup gsi for passthrough device
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 assigning a device to passthrough, proactively setup the gsi of the device during that process. Signed-off-by: Jiqian Chen <Jiqian.Chen@amd.com> Signed-off-by: Huang Rui <ray.huang@amd.com> Signed-off-by: Jiqian Chen <Jiqian.Chen@amd.com> Reviewed-by: Stefano Stabellini <sstabellini@kernel.org> Message-ID: <20240924061437.2636766-3-Jiqian.Chen@amd.com> Signed-off-by: Juergen Gross <jgross@suse.com>
Diffstat (limited to 'include')
-rw-r--r--include/linux/acpi.h1
-rw-r--r--include/xen/acpi.h18
2 files changed, 19 insertions, 0 deletions
diff --git a/include/linux/acpi.h b/include/linux/acpi.h
index 0687a442fec7..02ded9f53a6b 100644
--- a/include/linux/acpi.h
+++ b/include/linux/acpi.h
@@ -362,6 +362,7 @@ void acpi_unregister_gsi (u32 gsi);
struct pci_dev;
+struct acpi_prt_entry *acpi_pci_irq_lookup(struct pci_dev *dev, int pin);
int acpi_pci_irq_enable (struct pci_dev *dev);
void acpi_penalize_isa_irq(int irq, int active);
bool acpi_isa_irq_available(int irq);
diff --git a/include/xen/acpi.h b/include/xen/acpi.h
index b1e11863144d..3bcfe82d9078 100644
--- a/include/xen/acpi.h
+++ b/include/xen/acpi.h
@@ -67,10 +67,28 @@ static inline void xen_acpi_sleep_register(void)
acpi_suspend_lowlevel = xen_acpi_suspend_lowlevel;
}
}
+int xen_pvh_setup_gsi(int gsi, int trigger, int polarity);
+int xen_acpi_get_gsi_info(struct pci_dev *dev,
+ int *gsi_out,
+ int *trigger_out,
+ int *polarity_out);
#else
static inline void xen_acpi_sleep_register(void)
{
}
+
+static inline int xen_pvh_setup_gsi(int gsi, int trigger, int polarity)
+{
+ return -1;
+}
+
+static inline int xen_acpi_get_gsi_info(struct pci_dev *dev,
+ int *gsi_out,
+ int *trigger_out,
+ int *polarity_out)
+{
+ return -1;
+}
#endif
#endif /* _XEN_ACPI_H */