On Wed, Sep 30, 2020 at 01:14:31PM +0200, Gerd Hoffmann wrote:
> Add mmio field to usb controller struct, add support for mmio-mapped
> usb host adapters to boot order handling.
>
> Signed-off-by: Gerd Hoffmann <kra...@redhat.com>
> ---
> src/hw/usb.h | 1 +
> src/boot.c | 10 +++++++++-
> 2 files changed, 10 insertions(+), 1 deletion(-)
>
> diff --git a/src/hw/usb.h b/src/hw/usb.h
> index 2cfb5721775a..887f2064cf3a 100644
> --- a/src/hw/usb.h
> +++ b/src/hw/usb.h
> @@ -35,6 +35,7 @@ struct usb_s {
> struct usb_pipe *freelist;
> struct mutex_s resetlock;
> struct pci_device *pci;
> + void *mmio;
> u8 type;
> u8 maxaddr;
> };
> diff --git a/src/boot.c b/src/boot.c
> index a715e37356e2..bd78fb907c5a 100644
> --- a/src/boot.c
> +++ b/src/boot.c
> @@ -425,7 +425,15 @@ int bootprio_find_usb(struct usbdevice_s *usbdev, int
> lun)
> return -1;
> // Find usb - for example:
> /pci@i0cf8/usb@1,2/storage@1/channel@0/disk@0,0
What does an example usb descriptor look like with mmio?
> char desc[256], *p;
> - p = build_pci_path(desc, sizeof(desc), "usb", usbdev->hub->cntl->pci);
> +
> + if (usbdev->hub->cntl->pci)
> + p = build_pci_path(desc, sizeof(desc), "usb",
> usbdev->hub->cntl->pci);
> + else if (usbdev->hub->cntl->mmio)
> + p = desc + snprintf(desc, sizeof(desc), "/*@%016x"
> + , (u32)usbdev->hub->cntl->mmio);
> + else
> + return -1;
> +
> p = build_usb_path(p, desc+sizeof(desc)-p, usbdev->hub);
> snprintf(p, desc+sizeof(desc)-p, "/storage@%x/*@0/*@0,%x"
> , usb_portmap(usbdev), lun);
> --
> 2.27.0
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