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Re: [Qemu-devel] [qemu-s390x] [RFC 12/15] s390-bios: Use control unit ty
From: |
Thomas Huth |
Subject: |
Re: [Qemu-devel] [qemu-s390x] [RFC 12/15] s390-bios: Use control unit type to determine boot method |
Date: |
Tue, 17 Jul 2018 20:25:31 +0200 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.8.0 |
On 05.07.2018 19:25, Jason J. Herne wrote:
> From: "Jason J. Herne" <address@hidden>
>
> The boot method is different depending on which device type we are
> booting from. Let's examine the control unit type to determine if we're
> a virtio device. We'll eventually add a case to check for a real dasd device
> here as well.
>
> Signed-off-by: Jason J. Herne <address@hidden>
> Signed-off-by: Jason J. Herne <address@hidden>
> ---
> pc-bios/s390-ccw/main.c | 11 +++++++++--
> 1 file changed, 9 insertions(+), 2 deletions(-)
>
> diff --git a/pc-bios/s390-ccw/main.c b/pc-bios/s390-ccw/main.c
> index 20c30c6..e4236c0 100644
> --- a/pc-bios/s390-ccw/main.c
> +++ b/pc-bios/s390-ccw/main.c
> @@ -204,9 +204,16 @@ int main(void)
> cio_setup();
> boot_setup();
> find_boot_device();
> + enable_subchannel(blk_schid);
>
> - virtio_setup();
> - zipl_load(); /* no return */
> + switch (cu_type(blk_schid)) {
> + case 0x3832: /* Virtio device */
Could we please get some #defines for the magic numbers?
Thomas
- [Qemu-devel] [RFC 04/15] s390-bios: Extend find_dev() for non-virtio devices, (continued)
- [Qemu-devel] [RFC 04/15] s390-bios: Extend find_dev() for non-virtio devices, Jason J. Herne, 2018/07/05
- [Qemu-devel] [RFC 13/15] s390-bios: Add channel command codes/structs needed for dasd-ipl, Jason J. Herne, 2018/07/05
- [Qemu-devel] [RFC 09/15] s390-bios: ptr2u32 and u32toptr, Jason J. Herne, 2018/07/05
- [Qemu-devel] [RFC 15/15] s390-bios: Use sense ccw to ensure consistent device state at boot time, Jason J. Herne, 2018/07/05
- [Qemu-devel] [RFC 05/15] s390-bios: Factor finding boot device out of virtio code path, Jason J. Herne, 2018/07/05
- [Qemu-devel] [RFC 12/15] s390-bios: Use control unit type to determine boot method, Jason J. Herne, 2018/07/05
- Re: [Qemu-devel] [qemu-s390x] [RFC 12/15] s390-bios: Use control unit type to determine boot method,
Thomas Huth <=
- [Qemu-devel] [RFC 02/15] s390-bios: decouple cio setup from virtio, Jason J. Herne, 2018/07/05
- [Qemu-devel] [RFC 11/15] s390-bios: Refactor virtio to run channel programs via cio, Jason J. Herne, 2018/07/05
- [Qemu-devel] [RFC 03/15] s390-bios: decouple common boot logic from virtio, Jason J. Herne, 2018/07/05
- [Qemu-devel] [RFC 07/15] s390-bios: Decouple channel i/o logic from virtio, Jason J. Herne, 2018/07/05
- [Qemu-devel] [RFC 14/15] s390-bios: Support booting from real dasd device, Jason J. Herne, 2018/07/05