Re: [PATCH] hw/nvme: add knob for CTRATT.MEM

[Klaus Jensen]

On Sep 24 08:35, Klaus Jensen wrote:
> From: Klaus Jensen <k.jensen@samsung.com>
> 
> Add a boolean prop (ctratt.mem) for setting CTRATT.MEM and default it to
> unset (false) to keep existing behavior of the device intact.
> 
> Signed-off-by: Klaus Jensen <k.jensen@samsung.com>
> ---
>  hw/nvme/ctrl.c | 7 ++++++-
>  hw/nvme/nvme.h | 4 ++++
>  2 files changed, 10 insertions(+), 1 deletion(-)
> 
> diff --git a/hw/nvme/ctrl.c b/hw/nvme/ctrl.c
> index f36c45931821..8556f3e61fa0 100644
> --- a/hw/nvme/ctrl.c
> +++ b/hw/nvme/ctrl.c
> @@ -8492,7 +8492,11 @@ static void nvme_init_ctrl(NvmeCtrl *n, PCIDevice 
> *pci_dev)
>      id->cntlid = cpu_to_le16(n->cntlid);
>  
>      id->oaes = cpu_to_le32(NVME_OAES_NS_ATTR);
> -    ctratt = NVME_CTRATT_ELBAS | NVME_CTRATT_MEM;
> +
> +    ctratt = NVME_CTRATT_ELBAS;
> +    if (n->params.ctratt.mem) {
> +        ctratt |= NVME_CTRATT_MEM;
> +    }
>  
>      id->rab = 6;
>  
> @@ -8751,6 +8755,7 @@ static Property nvme_props[] = {
>                       false),
>      DEFINE_PROP_UINT16("mqes", NvmeCtrl, params.mqes, 0x7ff),
>      DEFINE_PROP_UINT16("spdm_port", PCIDevice, spdm_port, 0),
> +    DEFINE_PROP_BOOL("ctratt.mem", NvmeCtrl, params.ctratt.mem, false),
>      DEFINE_PROP_END_OF_LIST(),
>  };
>  
> diff --git a/hw/nvme/nvme.h b/hw/nvme/nvme.h
> index 781985754d0d..bd3c6ba33a67 100644
> --- a/hw/nvme/nvme.h
> +++ b/hw/nvme/nvme.h
> @@ -538,6 +538,10 @@ typedef struct NvmeParams {
>      uint32_t  sriov_max_vq_per_vf;
>      uint32_t  sriov_max_vi_per_vf;
>      bool     msix_exclusive_bar;
> +
> +    struct {
> +        bool mem;
> +    } ctratt;
>  } NvmeParams;
>  
>  typedef struct NvmeCtrl {
> 
> ---
> base-commit: 3245de3f3d002bc9ce2ecae61e8d86cb9e375808
> change-id: 20240924-add-ctratt-mem-knob-ae4431251cb1
> 
> Best regards,
> -- 
> Klaus Jensen <k.jensen@samsung.com>
> 
> 

Applied to nvme-next.

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