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[Qemu-block] [PATCH] nvme: fix copy direction in DMA reads going to CMB
From: |
Klaus Birkelund Jensen |
Subject: |
[Qemu-block] [PATCH] nvme: fix copy direction in DMA reads going to CMB |
Date: |
Sat, 18 May 2019 09:39:05 +0200 |
`nvme_dma_read_prp` erronously used `qemu_iovec_*to*_buf` instead of
`qemu_iovec_*from*_buf` when the request involved the controller memory
buffer.
Signed-off-by: Klaus Birkelund Jensen <address@hidden>
---
hw/block/nvme.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/hw/block/nvme.c b/hw/block/nvme.c
index 7caf92532a09..63a5b58849fb 100644
--- a/hw/block/nvme.c
+++ b/hw/block/nvme.c
@@ -238,7 +238,7 @@ static uint16_t nvme_dma_read_prp(NvmeCtrl *n, uint8_t
*ptr, uint32_t len,
}
qemu_sglist_destroy(&qsg);
} else {
- if (unlikely(qemu_iovec_to_buf(&iov, 0, ptr, len) != len)) {
+ if (unlikely(qemu_iovec_from_buf(&iov, 0, ptr, len) != len)) {
trace_nvme_err_invalid_dma();
status = NVME_INVALID_FIELD | NVME_DNR;
}
--
2.21.0
- [Qemu-block] [PATCH] nvme: fix copy direction in DMA reads going to CMB,
Klaus Birkelund Jensen <=