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[PATCH] hw/scsi: Fix sector translation bug in scsi_unmap_complete_noio
From: |
Kit Westneat |
Subject: |
[PATCH] hw/scsi: Fix sector translation bug in scsi_unmap_complete_noio |
Date: |
Fri, 21 May 2021 14:28:29 +0000 |
check_lba_range expects sectors to be expressed in original qdev blocksize, but
scsi_unmap_complete_noio was translating them to 512 block sizes, which was
causing sense errors in the larger LBAs in devices using a 4k block size.
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/345
Signed-off-by: Kit Westneat <kit.westneat@gmail.com>
---
hw/scsi/scsi-disk.c | 12 +++++++-----
1 file changed, 7 insertions(+), 5 deletions(-)
diff --git a/hw/scsi/scsi-disk.c b/hw/scsi/scsi-disk.c
index 3580e7ee61..e8a547dbb7 100644
--- a/hw/scsi/scsi-disk.c
+++ b/hw/scsi/scsi-disk.c
@@ -1582,6 +1582,7 @@ invalid_field:
scsi_check_condition(r, SENSE_CODE(INVALID_FIELD));
}
+/* sector_num and nb_sectors expected to be in qdev blocksize */
static inline bool check_lba_range(SCSIDiskState *s,
uint64_t sector_num, uint32_t nb_sectors)
{
@@ -1614,11 +1615,12 @@ static void scsi_unmap_complete_noio(UnmapCBData *data,
int ret)
assert(r->req.aiocb == NULL);
if (data->count > 0) {
- r->sector = ldq_be_p(&data->inbuf[0])
- * (s->qdev.blocksize / BDRV_SECTOR_SIZE);
- r->sector_count = (ldl_be_p(&data->inbuf[8]) & 0xffffffffULL)
- * (s->qdev.blocksize / BDRV_SECTOR_SIZE);
- if (!check_lba_range(s, r->sector, r->sector_count)) {
+ uint64_t sector_num = ldq_be_p(&data->inbuf[0]);
+ uint32_t nb_sectors = ldl_be_p(&data->inbuf[8]) & 0xffffffffULL;
+ r->sector = sector_num * (s->qdev.blocksize / BDRV_SECTOR_SIZE);
+ r->sector_count = nb_sectors * (s->qdev.blocksize / BDRV_SECTOR_SIZE);
+
+ if (!check_lba_range(s, sector_num, nb_sectors)) {
block_acct_invalid(blk_get_stats(s->qdev.conf.blk),
BLOCK_ACCT_UNMAP);
scsi_check_condition(r, SENSE_CODE(LBA_OUT_OF_RANGE));
--
2.26.3
- [PATCH] hw/scsi: Fix sector translation bug in scsi_unmap_complete_noio,
Kit Westneat <=