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[Qemu-devel] [RFC 5/6] hw/arm/sysbus-fdt: enable vsmmu dynamic instantia
From: |
Baptiste Reynal |
Subject: |
[Qemu-devel] [RFC 5/6] hw/arm/sysbus-fdt: enable vsmmu dynamic instantiation |
Date: |
Fri, 12 Jun 2015 16:20:09 +0200 |
This patch adds the device tree node creation for the vSMMU.
Signed-off-by: Baptiste Reynal <address@hidden>
---
hw/arm/sysbus-fdt.c | 43 +++++++++++++++++++++++++++++++++++++++++++
1 file changed, 43 insertions(+)
diff --git a/hw/arm/sysbus-fdt.c b/hw/arm/sysbus-fdt.c
index 3038b94..67f4425 100644
--- a/hw/arm/sysbus-fdt.c
+++ b/hw/arm/sysbus-fdt.c
@@ -26,6 +26,10 @@
#include "sysemu/device_tree.h"
#include "hw/platform-bus.h"
#include "sysemu/sysemu.h"
+#include "hw/vfio/vfio-platform.h"
+#include "hw/vfio/vfio-smmu.h"
+
+#include <libfdt.h>
/*
* internal struct that contains the information to create dynamic
@@ -53,8 +57,47 @@ typedef struct NodeCreationPair {
int (*add_fdt_node_fn)(SysBusDevice *sbdev, void *opaque);
} NodeCreationPair;
+VFIOSmmuDevice *vsmmu = NULL;
+
+static int add_arm_smmu_fdt_node(SysBusDevice *sbdev, void *opaque)
+{
+ PlatformBusFDTData *data = opaque;
+ vsmmu = VFIO_SMMU_DEVICE(sbdev);
+ void *fdt = data->fdt;
+ const char *nodename;
+ uint32_t reg_attr[4], irq_attr[3];
+ uint32_t gint = 0;
+
+ nodename = g_strdup_printf("/address@hidden" PRIx64, vsmmu->base);
+
+ qemu_fdt_add_subnode(fdt, nodename);
+ qemu_fdt_setprop(fdt, nodename, "compatible", "arm,smmu-v2", 12);
+
+ reg_attr[0] = 0;
+ reg_attr[1] = cpu_to_be32(vsmmu->base);
+ reg_attr[2] = 0;
+ reg_attr[3] = cpu_to_be32(vsmmu->size);
+
+ qemu_fdt_setprop(fdt, nodename, "reg",
+ reg_attr, 4*sizeof(uint32_t));
+
+ /* Add dummy interrupt */
+ irq_attr[0] = 0;
+ irq_attr[1] = 0;
+ irq_attr[2] = 0;
+
+ qemu_fdt_setprop(fdt, nodename, "interrupts",
+ irq_attr, 3*sizeof(uint32_t));
+
+ qemu_fdt_setprop(fdt, nodename, "#global-interrupts", &gint,
+ sizeof(uint32_t));
+
+ return 0;
+}
+
/* list of supported dynamic sysbus devices */
static const NodeCreationPair add_fdt_node_functions[] = {
+ {TYPE_VFIO_SMMU, add_arm_smmu_fdt_node},
{"", NULL}, /* last element */
};
--
2.4.3
- [Qemu-devel] [RFC 0/6] vSMMU initialization, Baptiste Reynal, 2015/06/12
- [Qemu-devel] [RFC 1/6] headers sync, Baptiste Reynal, 2015/06/12
- [Qemu-devel] [RFC 2/6] hw/core/platform-bus: initialization notifier, Baptiste Reynal, 2015/06/12
- [Qemu-devel] [RFC 3/6] hw/core/platform-bus: add base_address field, Baptiste Reynal, 2015/06/12
- [Qemu-devel] [RFC 4/6] hw/vfio: vsmmu device, Baptiste Reynal, 2015/06/12
- [Qemu-devel] [RFC 5/6] hw/arm/sysbus-fdt: enable vsmmu dynamic instantiation,
Baptiste Reynal <=
- [Qemu-devel] [RFC 6/6] hw/arm/sysbus-fdt: add smmu masters in device tree, Baptiste Reynal, 2015/06/12
- Re: [Qemu-devel] [RFC 0/6] vSMMU initialization, Will Deacon, 2015/06/12