Intel IOMMU Suspend/Resume Support - Interrupt Remapping
This patch enables suspend/resume for interrupt remapping. During suspend,
interrupt remapping is disabled. When resume, interrupt remapping is enabled
again.
Signed-off-by: Fenghua Yu <fenghua.yu@intel.com>
Acked-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
diff --git a/arch/x86/include/asm/apic.h b/arch/x86/include/asm/apic.h
index df8a300..f9f0866 100644
--- a/arch/x86/include/asm/apic.h
+++ b/arch/x86/include/asm/apic.h
@@ -108,6 +108,10 @@
extern u64 native_apic_icr_read(void);
#ifdef CONFIG_X86_X2APIC
+
+#define EIM_8BIT_APIC_ID 0
+#define EIM_32BIT_APIC_ID 1
+
/*
* Make previous memory operations globally visible before
* sending the IPI through x2apic wrmsr. We need a serializing instruction or
diff --git a/arch/x86/include/asm/io_apic.h b/arch/x86/include/asm/io_apic.h
index 373cc2b..9d826e4 100644
--- a/arch/x86/include/asm/io_apic.h
+++ b/arch/x86/include/asm/io_apic.h
@@ -162,10 +162,13 @@
extern void ioapic_init_mappings(void);
#ifdef CONFIG_X86_64
-extern int save_IO_APIC_setup(void);
-extern void mask_IO_APIC_setup(void);
-extern void restore_IO_APIC_setup(void);
-extern void reinit_intr_remapped_IO_APIC(int);
+extern struct IO_APIC_route_entry **alloc_ioapic_entries(void);
+extern void free_ioapic_entries(struct IO_APIC_route_entry **ioapic_entries);
+extern int save_IO_APIC_setup(struct IO_APIC_route_entry **ioapic_entries);
+extern void mask_IO_APIC_setup(struct IO_APIC_route_entry **ioapic_entries);
+extern int restore_IO_APIC_setup(struct IO_APIC_route_entry **ioapic_entries);
+extern void reinit_intr_remapped_IO_APIC(int intr_remapping,
+ struct IO_APIC_route_entry **ioapic_entries);
#endif
extern void probe_nr_irqs_gsi(void);