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    Subject[PATCH 1/5] lightnvm: change vendor and dev id for qemu
    Date
    The QEMU NVMe simulator uses the intel vendor, qemu device id, and the
    first vendor specific byte to identify a lightnvm compatible nvme
    instance.

    Instead of using the Intel NVMe QEMU instance vendor and device id,
    let's use a preallocated from CNEX Labs instead. This lets us uniquely
    identify a QEMU lightnvm device without breaking other vendor specific
    work in the qemu device driver.

    Reported-by: Christoph Hellwig <hch@infradead.org>
    Signed-off-by: Matias Bjørling <m@bjorling.me>
    ---
    drivers/nvme/host/lightnvm.c | 2 +-
    1 file changed, 1 insertion(+), 1 deletion(-)

    diff --git a/drivers/nvme/host/lightnvm.c b/drivers/nvme/host/lightnvm.c
    index 9202d1a..0789265 100644
    --- a/drivers/nvme/host/lightnvm.c
    +++ b/drivers/nvme/host/lightnvm.c
    @@ -577,7 +577,7 @@ int nvme_nvm_ns_supported(struct nvme_ns *ns, struct nvme_id_ns *id)
    struct pci_dev *pdev = to_pci_dev(dev->dev);

    /* QEMU NVMe simulator - PCI ID + Vendor specific bit */
    - if (pdev->vendor == PCI_VENDOR_ID_INTEL && pdev->device == 0x5845 &&
    + if (pdev->vendor == 0x1d1d && pdev->device == 0x1f1f &&
    id->vs[0] == 0x1)
    return 1;

    --
    2.1.4


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