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Diffstat (limited to 'arch/x86/include/asm/irq_remapping.h')
-rw-r--r--arch/x86/include/asm/irq_remapping.h45
1 files changed, 23 insertions, 22 deletions
diff --git a/arch/x86/include/asm/irq_remapping.h b/arch/x86/include/asm/irq_remapping.h
index 4bc985f1e2e4..5a0d42464d44 100644
--- a/arch/x86/include/asm/irq_remapping.h
+++ b/arch/x86/include/asm/irq_remapping.h
@@ -26,7 +26,22 @@ enum {
IRQ_REMAP_X2APIC_MODE,
};
-struct vcpu_data {
+/*
+ * This is mainly used to communicate information back-and-forth
+ * between SVM and IOMMU for setting up and tearing down posted
+ * interrupt
+ */
+struct amd_iommu_pi_data {
+ u64 vapic_addr; /* Physical address of the vCPU's vAPIC. */
+ u32 ga_tag;
+ u32 vector; /* Guest vector of the interrupt */
+ int cpu;
+ bool ga_log_intr;
+ bool is_guest_mode;
+ void *ir_data;
+};
+
+struct intel_iommu_pi_data {
u64 pi_desc_addr; /* Physical address of PI Descriptor */
u32 vector; /* Guest vector of the interrupt */
};
@@ -44,21 +59,19 @@ extern int irq_remapping_reenable(int);
extern int irq_remap_enable_fault_handling(void);
extern void panic_if_irq_remap(const char *msg);
-extern struct irq_domain *
-irq_remapping_get_ir_irq_domain(struct irq_alloc_info *info);
-extern struct irq_domain *
-irq_remapping_get_irq_domain(struct irq_alloc_info *info);
-
-/* Create PCI MSI/MSIx irqdomain, use @parent as the parent irqdomain. */
-extern struct irq_domain *
-arch_create_remap_msi_irq_domain(struct irq_domain *par, const char *n, int id);
-
/* Get parent irqdomain for interrupt remapping irqdomain */
static inline struct irq_domain *arch_get_ir_parent_domain(void)
{
return x86_vector_domain;
}
+extern bool enable_posted_msi;
+
+static inline bool posted_msi_supported(void)
+{
+ return enable_posted_msi && irq_remapping_cap(IRQ_POSTING_CAP);
+}
+
#else /* CONFIG_IRQ_REMAP */
static inline bool irq_remapping_cap(enum irq_remap_cap cap) { return 0; }
@@ -73,17 +86,5 @@ static inline void panic_if_irq_remap(const char *msg)
{
}
-static inline struct irq_domain *
-irq_remapping_get_ir_irq_domain(struct irq_alloc_info *info)
-{
- return NULL;
-}
-
-static inline struct irq_domain *
-irq_remapping_get_irq_domain(struct irq_alloc_info *info)
-{
- return NULL;
-}
-
#endif /* CONFIG_IRQ_REMAP */
#endif /* __X86_IRQ_REMAPPING_H */