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From 511d05f31824b375057ba8dea3f0343ce6e1c1e8 Mon Sep 17 00:00:00 2001
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From: Thomas Huth <thuth@redhat.com>
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Date: Fri, 8 Jul 2022 12:29:50 +0200
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Subject: [PATCH 29/37] pc-bios/s390-ccw/virtio: Introduce a macro for the DASD
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block size
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RH-Author: Thomas Huth <thuth@redhat.com>
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RH-MergeRequest: 198: pc-bios/s390-ccw: Fix boot from disks with 4k sectors that do not have the typical DASD geometry
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RH-Commit: [1/9] 1053101fd5fb591131c567ff98c7d92b63a9dfa9
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RH-Bugzilla: 2098076
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RH-Acked-by: Miroslav Rezanina <mrezanin@redhat.com>
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RH-Acked-by: David Hildenbrand <david@redhat.com>
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RH-Acked-by: Cornelia Huck <cohuck@redhat.com>
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Bugzilla: http://bugzilla.redhat.com/2098076
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commit 1f2c2ee48e87ea743f8e23cc7569dd26c4cf9623
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Author: Thomas Huth <thuth@redhat.com>
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Date: Mon Jul 4 13:18:53 2022 +0200
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pc-bios/s390-ccw/virtio: Introduce a macro for the DASD block size
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Use VIRTIO_DASD_DEFAULT_BLOCK_SIZE instead of the magic value 4096.
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Message-Id: <20220704111903.62400-3-thuth@redhat.com>
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Reviewed-by: Eric Farman <farman@linux.ibm.com>
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Reviewed-by: Cornelia Huck <cohuck@redhat.com>
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Signed-off-by: Thomas Huth <thuth@redhat.com>
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Signed-off-by: Thomas Huth <thuth@redhat.com>
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---
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pc-bios/s390-ccw/virtio-blkdev.c | 2 +-
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pc-bios/s390-ccw/virtio.h | 1 +
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2 files changed, 2 insertions(+), 1 deletion(-)
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diff --git a/pc-bios/s390-ccw/virtio-blkdev.c b/pc-bios/s390-ccw/virtio-blkdev.c
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index 7d35050292..6483307630 100644
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--- a/pc-bios/s390-ccw/virtio-blkdev.c
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+++ b/pc-bios/s390-ccw/virtio-blkdev.c
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@@ -155,7 +155,7 @@ void virtio_assume_eckd(void)
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vdev->config.blk.physical_block_exp = 0;
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switch (vdev->senseid.cu_model) {
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case VIRTIO_ID_BLOCK:
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- vdev->config.blk.blk_size = 4096;
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+ vdev->config.blk.blk_size = VIRTIO_DASD_DEFAULT_BLOCK_SIZE;
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break;
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case VIRTIO_ID_SCSI:
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vdev->config.blk.blk_size = vdev->scsi_block_size;
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diff --git a/pc-bios/s390-ccw/virtio.h b/pc-bios/s390-ccw/virtio.h
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index 19fceb6495..9e410bde6f 100644
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--- a/pc-bios/s390-ccw/virtio.h
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+++ b/pc-bios/s390-ccw/virtio.h
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@@ -198,6 +198,7 @@ extern int virtio_read_many(ulong sector, void *load_addr, int sec_num);
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#define VIRTIO_SECTOR_SIZE 512
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#define VIRTIO_ISO_BLOCK_SIZE 2048
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#define VIRTIO_SCSI_BLOCK_SIZE 512
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+#define VIRTIO_DASD_DEFAULT_BLOCK_SIZE 4096
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static inline ulong virtio_sector_adjust(ulong sector)
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{
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--
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2.35.3
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