linux-kernel - Re: [PATCH v2] scsi: ufs: ufs-pci: Add support for QEMU

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Message-ID: <2da6c39d-cfc0-3a93-7968-ec4c1eaef52d@intel.com>
Date:   Mon, 7 Aug 2023 09:01:05 +0300
From:   Adrian Hunter <adrian.hunter@...el.com>
To:     jeuk20.kim@...sung.com, "jejb@...ux.ibm.com" <jejb@...ux.ibm.com>,
        "martin.petersen@...cle.com" <martin.petersen@...cle.com>,
        "bvanassche@....org" <bvanassche@....org>,
        "avri.altman@....com" <avri.altman@....com>
Cc:     "linux-scsi@...r.kernel.org" <linux-scsi@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v2] scsi: ufs: ufs-pci: Add support for QEMU

On 7/08/23 04:37, Jeuk Kim wrote:
> To ensure that the pci based QEMU ufs device properly works with linux,
> register the device id (0x0013) and vendor id (0x1b36) of QEMU ufs device.
> 
> QEMU UFS will enable testing of the UFS driver inside a virtual machine
> on systems without UFS host controller. It can also be used to preemptively
> implement and test new features before the real device is created.
> 
> The new qemu ufs device can be found at
> https://lore.kernel.org/qemu-devel/20230727155239.GA979354@fedora
> 
> Signed-off-by: Jeuk Kim <jeuk20.kim@...sung.com>

Acked-by: Adrian Hunter <adrian.hunter@...el.com>

Thank you!

> ---
> 
> Since v1:
> - Based on Adrian's comment, I modified the commit message to be
>   more detailed.
> 
> ---
>  drivers/ufs/host/ufshcd-pci.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/ufs/host/ufshcd-pci.c b/drivers/ufs/host/ufshcd-pci.c
> index cf3987773051..29d322931427 100644
> --- a/drivers/ufs/host/ufshcd-pci.c
> +++ b/drivers/ufs/host/ufshcd-pci.c
> @@ -590,6 +590,7 @@ static const struct dev_pm_ops ufshcd_pci_pm_ops = {
>  };
>  
>  static const struct pci_device_id ufshcd_pci_tbl[] = {
> +	{ PCI_VENDOR_ID_REDHAT, 0x0013, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
>  	{ PCI_VENDOR_ID_SAMSUNG, 0xC00C, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
>  	{ PCI_VDEVICE(INTEL, 0x9DFA), (kernel_ulong_t)&ufs_intel_cnl_hba_vops },
>  	{ PCI_VDEVICE(INTEL, 0x4B41), (kernel_ulong_t)&ufs_intel_ehl_hba_vops },