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[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-devel] [PATCH v6 04/22] arm/gic: Add a new callback for creating MADT table for Dom0
From: Shannon Zhao <shannon.zhao@xxxxxxxxxx>
Add a new member in gic_hw_operations which is used to creat MADT table
for Dom0.
Signed-off-by: Shannon Zhao <shannon.zhao@xxxxxxxxxx>
Reviewed-by: Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx>
---
xen/arch/arm/gic-v2.c | 34 ++++++++++++++++++++++++++++++++++
xen/arch/arm/gic-v3.c | 47 +++++++++++++++++++++++++++++++++++++++++++++++
xen/arch/arm/gic.c | 5 +++++
xen/include/asm-arm/gic.h | 3 +++
4 files changed, 89 insertions(+)
diff --git a/xen/arch/arm/gic-v2.c b/xen/arch/arm/gic-v2.c
index 0fcb894..02db5f2 100644
--- a/xen/arch/arm/gic-v2.c
+++ b/xen/arch/arm/gic-v2.c
@@ -685,6 +685,35 @@ static void __init gicv2_dt_init(void)
}
#ifdef CONFIG_ACPI
+static u32 gicv2_make_hwdom_madt(const struct domain *d, u32 offset)
+{
+ struct acpi_subtable_header *header;
+ struct acpi_madt_generic_interrupt *host_gicc, *gicc;
+ u32 i, size, table_len = 0;
+ u8 *base_ptr = d->arch.efi_acpi_table + offset;
+
+ header = acpi_table_get_entry_madt(ACPI_MADT_TYPE_GENERIC_INTERRUPT, 0);
+ if ( !header )
+ panic("Can't get GICC entry");
+ host_gicc = container_of(header, struct acpi_madt_generic_interrupt,
+ header);
+
+ size = sizeof(struct acpi_madt_generic_interrupt);
+ /* Add Generic Interrupt */
+ for ( i = 0; i < d->max_vcpus; i++ )
+ {
+ gicc = (struct acpi_madt_generic_interrupt *)(base_ptr + table_len);
+ ACPI_MEMCPY(gicc, host_gicc, size);
+ gicc->cpu_interface_number = i;
+ gicc->uid = i;
+ gicc->flags = ACPI_MADT_ENABLED;
+ gicc->arm_mpidr = vcpuid_to_vaffinity(i);
+ table_len += size;
+ }
+
+ return table_len;
+}
+
static int __init
gic_acpi_parse_madt_cpu(struct acpi_subtable_header *header,
const unsigned long end)
@@ -776,6 +805,10 @@ static void __init gicv2_acpi_init(void)
}
#else
static void __init gicv2_acpi_init(void) { }
+static u32 gicv2_make_hwdom_madt(const struct domain *d, u32 offset)
+{
+ return 0;
+}
#endif
static int __init gicv2_init(void)
@@ -868,6 +901,7 @@ const static struct gic_hw_operations gicv2_ops = {
.read_vmcr_priority = gicv2_read_vmcr_priority,
.read_apr = gicv2_read_apr,
.make_hwdom_dt_node = gicv2_make_hwdom_dt_node,
+ .make_hwdom_madt = gicv2_make_hwdom_madt,
};
/* Set up the GIC */
diff --git a/xen/arch/arm/gic-v3.c b/xen/arch/arm/gic-v3.c
index f83fd88..d9fce4b 100644
--- a/xen/arch/arm/gic-v3.c
+++ b/xen/arch/arm/gic-v3.c
@@ -1236,6 +1236,48 @@ static void __init gicv3_dt_init(void)
}
#ifdef CONFIG_ACPI
+static u32 gicv3_make_hwdom_madt(const struct domain *d, u32 offset)
+{
+ struct acpi_subtable_header *header;
+ struct acpi_madt_generic_interrupt *host_gicc, *gicc;
+ struct acpi_madt_generic_redistributor *gicr;
+ u8 *base_ptr = d->arch.efi_acpi_table + offset;
+ u32 i, table_len = 0, size;
+
+ /* Add Generic Interrupt */
+ header = acpi_table_get_entry_madt(ACPI_MADT_TYPE_GENERIC_INTERRUPT, 0);
+ if ( !header )
+ panic("Can't get GICC entry");
+ host_gicc = container_of(header, struct acpi_madt_generic_interrupt,
+ header);
+
+ size = sizeof(struct acpi_madt_generic_interrupt);
+ for ( i = 0; i < d->max_vcpus; i++ )
+ {
+ gicc = (struct acpi_madt_generic_interrupt *)(base_ptr + table_len);
+ ACPI_MEMCPY(gicc, host_gicc, size);
+ gicc->cpu_interface_number = i;
+ gicc->uid = i;
+ gicc->flags = ACPI_MADT_ENABLED;
+ gicc->arm_mpidr = vcpuid_to_vaffinity(i);
+ table_len += size;
+ }
+
+ /* Add Generic Redistributor */
+ size = sizeof(struct acpi_madt_generic_redistributor);
+ for ( i = 0; i < d->arch.vgic.nr_regions; i++ )
+ {
+ gicr = (struct acpi_madt_generic_redistributor *)(base_ptr +
table_len);
+ gicr->header.type = ACPI_MADT_TYPE_GENERIC_REDISTRIBUTOR;
+ gicr->header.length = size;
+ gicr->base_address = d->arch.vgic.rdist_regions[i].base;
+ gicr->length = d->arch.vgic.rdist_regions[i].size;
+ table_len += size;
+ }
+
+ return table_len;
+}
+
static int __init
gic_acpi_parse_madt_cpu(struct acpi_subtable_header *header,
const unsigned long end)
@@ -1380,6 +1422,10 @@ static void __init gicv3_acpi_init(void)
}
#else
static void __init gicv3_acpi_init(void) { }
+static u32 gicv3_make_hwdom_madt(const struct domain *d, u32 offset)
+{
+ return 0;
+}
#endif
/* Set up the GIC */
@@ -1474,6 +1520,7 @@ static const struct gic_hw_operations gicv3_ops = {
.read_apr = gicv3_read_apr,
.secondary_init = gicv3_secondary_cpu_init,
.make_hwdom_dt_node = gicv3_make_hwdom_dt_node,
+ .make_hwdom_madt = gicv3_make_hwdom_madt,
};
static int __init gicv3_dt_preinit(struct dt_device_node *node, const void
*data)
diff --git a/xen/arch/arm/gic.c b/xen/arch/arm/gic.c
index fbbe37f..6d32432 100644
--- a/xen/arch/arm/gic.c
+++ b/xen/arch/arm/gic.c
@@ -739,6 +739,11 @@ int gic_make_hwdom_dt_node(const struct domain *d,
return gic_hw_ops->make_hwdom_dt_node(d, gic, fdt);
}
+u32 gic_make_hwdom_madt(const struct domain *d, u32 offset)
+{
+ return gic_hw_ops->make_hwdom_madt(d, offset);
+}
+
/*
* Local variables:
* mode: C
diff --git a/xen/include/asm-arm/gic.h b/xen/include/asm-arm/gic.h
index 7bd06e1..4cf003d 100644
--- a/xen/include/asm-arm/gic.h
+++ b/xen/include/asm-arm/gic.h
@@ -358,12 +358,15 @@ struct gic_hw_operations {
/* Create GIC node for the hardware domain */
int (*make_hwdom_dt_node)(const struct domain *d,
const struct dt_device_node *gic, void *fdt);
+ /* Create MADT table for the hardware domain */
+ u32 (*make_hwdom_madt)(const struct domain *d, u32 offset);
};
void register_gic_ops(const struct gic_hw_operations *ops);
int gic_make_hwdom_dt_node(const struct domain *d,
const struct dt_device_node *gic,
void *fdt);
+u32 gic_make_hwdom_madt(const struct domain *d, u32 offset);
#endif /* __ASSEMBLY__ */
#endif
--
2.0.4
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