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hw/nvme: fix missing endian conversions for doorbell buffers 

The eventidx and doorbell value are not handling endianness correctly.
Fix this.

Fixes: 3f7fe8de3d ("hw/nvme: Implement shadow doorbell buffer support")
Cc: qemu-stable@nongnu.org
Reported-by: Guenter Roeck <linux@roeck-us.net>
Reviewed-by: Keith Busch <kbusch@kernel.org>
Signed-off-by: Klaus Jensen <k.jensen@samsung.com>
This commit is contained in:
Klaus Jensen 2022-12-12 11:30:52 +01:00
parent 47cd3539e1
commit 2fda0726e5
1 changed files with 13 additions and 6 deletions
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19
hw/nvme/ctrl.c
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@ -1336,8 +1336,11 @@ static inline void nvme_blk_write(BlockBackend *blk, int64_t offset,
static void nvme_update_cq_head(NvmeCQueue *cq)
{
pci_dma_read(PCI_DEVICE(cq->ctrl), cq->db_addr, &cq->head,
sizeof(cq->head));
uint32_t v;
pci_dma_read(PCI_DEVICE(cq->ctrl), cq->db_addr, &v, sizeof(v));
cq->head = le32_to_cpu(v);
trace_pci_nvme_update_cq_head(cq->cqid, cq->head);
}
@ -6148,16 +6151,20 @@ static uint16_t nvme_admin_cmd(NvmeCtrl *n, NvmeRequest *req)
static void nvme_update_sq_eventidx(const NvmeSQueue *sq)
{
uint32_t v = cpu_to_le32(sq->tail);
trace_pci_nvme_update_sq_eventidx(sq->sqid, sq->tail);
pci_dma_write(PCI_DEVICE(sq->ctrl), sq->ei_addr, &sq->tail,
sizeof(sq->tail));
pci_dma_write(PCI_DEVICE(sq->ctrl), sq->ei_addr, &v, sizeof(v));
}
static void nvme_update_sq_tail(NvmeSQueue *sq)
{
pci_dma_read(PCI_DEVICE(sq->ctrl), sq->db_addr, &sq->tail,
sizeof(sq->tail));
uint32_t v;
pci_dma_read(PCI_DEVICE(sq->ctrl), sq->db_addr, &v, sizeof(v));
sq->tail = le32_to_cpu(v);
trace_pci_nvme_update_sq_tail(sq->sqid, sq->tail);
}