[v3] s390x: Add support for virtio-blk-pci IPL device

[PATCH v3 08/14] s390x: Add definitions for PCI IPL type

Posted by jrossi@linux.ibm.com 1 week, 5 days ago

From: Jared Rossi <jrossi@linux.ibm.com>

Define a new PBT code and IPLB layout in preperation for supporting PCI device
IPL on s390x.

Signed-off-by: Jared Rossi <jrossi@linux.ibm.com>
---
 include/hw/s390x/ipl/qipl.h | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/include/hw/s390x/ipl/qipl.h b/include/hw/s390x/ipl/qipl.h
index 6dc12dd859..8d3c83a80b 100644
--- a/include/hw/s390x/ipl/qipl.h
+++ b/include/hw/s390x/ipl/qipl.h
@@ -23,6 +23,7 @@
 enum S390IplType {
     S390_IPL_TYPE_FCP = 0x00,
     S390_IPL_TYPE_CCW = 0x02,
+    S390_IPL_TYPE_PCI = 0x04,
     S390_IPL_TYPE_PV = 0x05,
     S390_IPL_TYPE_QEMU_SCSI = 0xff
 };
@@ -108,6 +109,14 @@ struct IplBlockQemuScsi {
 } QEMU_PACKED;
 typedef struct IplBlockQemuScsi IplBlockQemuScsi;
 
+struct IplBlockPci {
+    uint32_t reserved0[76];
+    uint8_t  opt;
+    uint8_t  reserved1[3];
+    uint32_t fid;
+} QEMU_PACKED;
+typedef struct IplBlockPci IplBlockPci;
+
 union IplParameterBlock {
     struct {
         uint32_t len;
@@ -123,6 +132,7 @@ union IplParameterBlock {
             IplBlockFcp fcp;
             IPLBlockPV pv;
             IplBlockQemuScsi scsi;
+            IplBlockPci pci;
         };
     } QEMU_PACKED;
     struct {
-- 
2.52.0

Re: [PATCH v3 08/14] s390x: Add definitions for PCI IPL type

Posted by Eric Farman 2 days, 11 hours ago

On Tue, 2026-01-27 at 11:15 -0500, jrossi@linux.ibm.com wrote:
> From: Jared Rossi <jrossi@linux.ibm.com>
> 
> Define a new PBT code and IPLB layout in preperation for supporting PCI device

s/preperation/preparation/

> IPL on s390x.
> 
> Signed-off-by: Jared Rossi <jrossi@linux.ibm.com>
> ---
>  include/hw/s390x/ipl/qipl.h | 10 ++++++++++
>  1 file changed, 10 insertions(+)

Reviewed-by: Eric Farman <farman@linux.ibm.com>

Re: [PATCH v3 08/14] s390x: Add definitions for PCI IPL type

Posted by Thomas Huth 1 week, 3 days ago

On 27/01/2026 17.15, jrossi@linux.ibm.com wrote:
> From: Jared Rossi <jrossi@linux.ibm.com>
> 
> Define a new PBT code and IPLB layout in preperation for supporting PCI device
> IPL on s390x.
> 
> Signed-off-by: Jared Rossi <jrossi@linux.ibm.com>
> ---
>   include/hw/s390x/ipl/qipl.h | 10 ++++++++++
>   1 file changed, 10 insertions(+)
> 
> diff --git a/include/hw/s390x/ipl/qipl.h b/include/hw/s390x/ipl/qipl.h
> index 6dc12dd859..8d3c83a80b 100644
> --- a/include/hw/s390x/ipl/qipl.h
> +++ b/include/hw/s390x/ipl/qipl.h
> @@ -23,6 +23,7 @@
>   enum S390IplType {
>       S390_IPL_TYPE_FCP = 0x00,
>       S390_IPL_TYPE_CCW = 0x02,
> +    S390_IPL_TYPE_PCI = 0x04,
>       S390_IPL_TYPE_PV = 0x05,
>       S390_IPL_TYPE_QEMU_SCSI = 0xff
>   };
> @@ -108,6 +109,14 @@ struct IplBlockQemuScsi {
>   } QEMU_PACKED;
>   typedef struct IplBlockQemuScsi IplBlockQemuScsi;
>   
> +struct IplBlockPci {
> +    uint32_t reserved0[76];
> +    uint8_t  opt;
> +    uint8_t  reserved1[3];
> +    uint32_t fid;
> +} QEMU_PACKED;
> +typedef struct IplBlockPci IplBlockPci;
> +
>   union IplParameterBlock {
>       struct {
>           uint32_t len;
> @@ -123,6 +132,7 @@ union IplParameterBlock {
>               IplBlockFcp fcp;
>               IPLBlockPV pv;
>               IplBlockQemuScsi scsi;
> +            IplBlockPci pci;
>           };
>       } QEMU_PACKED;
>       struct {

Reviewed-by: Thomas Huth <thuth@redhat.com>