Hi Baptiste
On 01/12/2015 02:21 PM, Baptiste Reynal wrote:
> Use the VFIO device property API to retrieve interrupt
> information (type and flags) during device node creation.
>
> Signed-off-by: Baptiste Reynal <b.reynal@xxxxxxxxxxxxxxxxxxxxxx>
> ---
> hw/arm/sysbus-fdt.c | 26 ++++++++++++++++++--------
> 1 file changed, 18 insertions(+), 8 deletions(-)
>
> diff --git a/hw/arm/sysbus-fdt.c b/hw/arm/sysbus-fdt.c
> index efdeea7..087e788 100644
> --- a/hw/arm/sysbus-fdt.c
> +++ b/hw/arm/sysbus-fdt.c
> @@ -31,6 +31,7 @@
> #include "hw/vfio/vfio-pl330.h"
>
> #include <libfdt.h>
> +#include <linux/vfio.h>
>
> /*
> * internal struct that contains the information to create dynamic
> @@ -66,7 +67,7 @@ typedef struct NodeCreationPair {
> * Helper function, generate interrupts property for a given node
might be worth adding something like "based on host device tree node"
> */
> static int set_interrupts_fdt_node(char *nodename, SysBusDevice *sbdev,
> - void *opaque, int type, int flags)
> + void *opaque)
> {
> PlatformBusFdtData *data = opaque;
> PlatformBusDevice *pbus = data->pbus;
> @@ -76,23 +77,32 @@ static int set_interrupts_fdt_node(char *nodename, SysBusDevice *sbdev,
> int i, ret;
> VFIOPlatformDevice *vdev = VFIO_PLATFORM_DEVICE(sbdev);
> VFIODevice *vbasedev = &vdev->vbasedev;
> + struct vfio_dev_property *irq_prop;
> +
> + irq_prop = vfio_get_dev_property(vbasedev->fd, "interrupts",
> + VFIO_DEV_PROPERTY_TYPE_U32);
> +
> + if (irq_prop == NULL) {
> + return -1;
> + }
>
> irq_attr = g_new(uint32_t, vbasedev->num_irqs*3);
>
> for (i = 0; i < vbasedev->num_irqs; i++) {
> irq_number = platform_bus_get_irqn(pbus, sbdev , i)
> + data->irq_start;
> - irq_attr[3*i] = cpu_to_be32(type);
> + irq_attr[3*i] = cpu_to_be32(((__u32 *) irq_prop->data)[3*i]);
> irq_attr[3*i+1] = cpu_to_be32(irq_number);
> - irq_attr[3*i+2] = cpu_to_be32(flags);
> + irq_attr[3*i+2] = cpu_to_be32(((__u32 *) irq_prop->data)[3*i+2]);
> }
>
> - ret = qemu_fdt_setprop(fdt, nodename, "interrupts",
> - irq_attr, vbasedev->num_irqs*3*sizeof(uint32_t));
> + ret = qemu_fdt_setprop(fdt, nodename, "interrupts",
> + irq_attr, vbasedev->num_irqs*3*sizeof(uint32_t));
delta may be removed?
>
> g_free(irq_attr);
> + g_free(irq_prop);
>
> - return ret;
> + return ret;
delta may be removed?
Best Regards
Eric
> }
>
> /**
> @@ -168,7 +178,7 @@ static int add_calxeda_midway_xgmac_fdt_node(SysBusDevice *sbdev, void *opaque)
> goto fail;
> }
>
> - ret = set_interrupts_fdt_node(nodename, sbdev, opaque, 0, 0x4);
> + ret = set_interrupts_fdt_node(nodename, sbdev, opaque);
>
> if (ret < 0) {
> error_report("could not set interrupts property of node %s",
> @@ -248,7 +258,7 @@ static int add_arm_pl330_fdt_node(SysBusDevice *sbdev, void *opaque)
> goto fail;
> }
>
> - ret = set_interrupts_fdt_node(nodename, sbdev, opaque, 0, 0x4);
> + ret = set_interrupts_fdt_node(nodename, sbdev, opaque);
>
> if (ret < 0) {
> error_report("could not set interrupts property of node %s",
>
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