[Xen-devel] [PATCH RFC 07/35] ACPI / ACPICA: Add new features for MADT which introduced by ACPI 5.1

[parth.dixit@xxxxxxxxxx]

From: Naresh Bhat <naresh.bhat@xxxxxxxxxx>

Add new features for MADT which introduced by ACPI 5.1:
-comment on the GIC ID field of the GIC structure which is replaced
 by CPU Interface Number.
-add new fields: Redistributor Base Address, GICV, GICH, and MPIDR.
-add new structures for GIC MSI frame and GICR.
-add flag definition for GICC flags.

Signed-off-by: Tomasz Nowicki <tomasz.nowicki@xxxxxxxxxx>
Signed-off-by: Hanjun Guo <hanjun.guo@xxxxxxxxxx>
Signed-off-by: Naresh Bhat <naresh.bhat@xxxxxxxxxx>
---
 xen/include/acpi/actbl1.h | 38 ++++++++++++++++++++++++++++++++++----
 1 file changed, 34 insertions(+), 4 deletions(-)

diff --git a/xen/include/acpi/actbl1.h b/xen/include/acpi/actbl1.h
index dd6dc27..d16670d 100644
--- a/xen/include/acpi/actbl1.h
+++ b/xen/include/acpi/actbl1.h
@@ -641,7 +641,9 @@ enum acpi_madt_type {
        ACPI_MADT_TYPE_LOCAL_X2APIC_NMI = 10,
        ACPI_MADT_TYPE_GENERIC_INTERRUPT = 11,
        ACPI_MADT_TYPE_GENERIC_DISTRIBUTOR = 12,
-       ACPI_MADT_TYPE_RESERVED = 13    /* 13 and greater are reserved */
+       ACPI_MADT_TYPE_GIC_MSI_FRAME = 13,
+       ACPI_MADT_TYPE_GIC_REDISTRIBUTOR = 14,
+       ACPI_MADT_TYPE_RESERVED = 15    /* 15 and greater are reserved */
 };
 
 /*
@@ -762,18 +764,23 @@ struct acpi_madt_local_x2apic_nmi {
        u8 reserved[3];
 };
 
-/* 11: Generic Interrupt (ACPI 5.0) */
+/* 11: Generic Interrupt (ACPI 5.1) */
 
 struct acpi_madt_generic_interrupt {
     struct acpi_subtable_header header;
     u16 reserved;           /* reserved - must be zero */
-    u32 gic_id;
+    u32 gic_id;                /* it was renamed to cpu interface number in 
ACPI 5.1 */
     u32 uid;
     u32 flags;
     u32 parking_version;
     u32 performance_interrupt;
     u64 parked_address;
     u64 base_address;
+    u64 gicv_base_address;
+    u64 gich_base_address;
+    u32 vgic_maintenance_interrupt;
+    u64 redist_base_address;
+    u64 mpidr;
 };
 
 /* 12: Generic Distributor (ACPI 5.0) */
@@ -787,14 +794,37 @@ struct acpi_madt_generic_distributor {
     u32 reserved2;          /* reserved - must be zero */
 };
 
+/* 13: GIC MSI Frame (ACPI 5.1) */
+
+struct acpi_madt_gic_msi_frame {
+       struct acpi_subtable_header header;
+       u16 reserved;           /* reserved - must be zero */
+       u32 gic_msi_frame_id;
+       u64 base_address;
+};
+
+/* 14: GIC Redistributor (ACPI 5.1) */
+
+struct acpi_madt_gic_redistributor {
+       struct acpi_subtable_header header;
+       u16 reserved;           /* reserved - must be zero */
+       u64 base_address;
+       u32 region_size;
+};
+
 /*
  * Common flags fields for MADT subtables
  */
 
-/* MADT Local APIC flags (lapic_flags) */
+/* MADT Local APIC flags (lapic_flags) and GICC flags */
 
 #define ACPI_MADT_ENABLED           (1)        /* 00: Processor is usable if 
set */
 
+/* MADT GICC flags only */
+
+#define ACPI_MADT_PERF_INT_MODE     (1<<1)     /* 01: Performance Interrupt 
Mode */
+#define ACPI_MADT_VGIC              (1<<2)     /* 02: VGIC Maintenance 
interrupt mode */
+
 /* MADT MPS INTI flags (inti_flags) */
 
 #define ACPI_MADT_POLARITY_MASK     (3)        /* 00-01: Polarity of APIC I/O 
input signals */
-- 
1.9.1


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