Re: [PATCH 09/11] Kernel: Enable SVA support for both Intel and AMD CPUs

[Michael Tremer <michael.tremer@ipfire.org>]

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Acked-by: Michael Tremer <michael.tremer(a)ipfire.org>

> On 19 Mar 2022, at 21:10, Peter Müller <peter.mueller(a)ipfire.org> wrote:
> 
> Since running virtual machines is one of our legitimate use cases, it
> makes sense to provide Qemu with the ability of taking advantage of
> IOMMU support for safer virtuall memory allocation, if available.
> 
> Signed-off-by: Peter Müller <peter.mueller(a)ipfire.org>
> ---
> config/kernel/kernel.config.x86_64-ipfire | 6 ++++--
> 1 file changed, 4 insertions(+), 2 deletions(-)
> 
> diff --git a/config/kernel/kernel.config.x86_64-ipfire b/config/kernel/kernel.config.x86_64-ipfire
> index 0b9c79209..42275d26f 100644
> --- a/config/kernel/kernel.config.x86_64-ipfire
> +++ b/config/kernel/kernel.config.x86_64-ipfire
> @@ -6179,6 +6179,7 @@ CONFIG_INTEL_IDMA64=m
> CONFIG_INTEL_IDXD_BUS=m
> CONFIG_INTEL_IDXD=m
> # CONFIG_INTEL_IDXD_COMPAT is not set
> +# CONFIG_INTEL_IDXD_SVM is not set
> # CONFIG_INTEL_IDXD_PERFMON is not set
> CONFIG_INTEL_IOATDMA=m
> CONFIG_PLX_DMA=m
> @@ -6476,11 +6477,12 @@ CONFIG_IOMMU_DEFAULT_DMA_STRICT=y
> # CONFIG_IOMMU_DEFAULT_DMA_LAZY is not set
> # CONFIG_IOMMU_DEFAULT_PASSTHROUGH is not set
> CONFIG_IOMMU_DMA=y
> +CONFIG_IOMMU_SVA_LIB=y
> CONFIG_AMD_IOMMU=y
> -# CONFIG_AMD_IOMMU_V2 is not set
> +CONFIG_AMD_IOMMU_V2=y
> CONFIG_DMAR_TABLE=y
> CONFIG_INTEL_IOMMU=y
> -# CONFIG_INTEL_IOMMU_SVM is not set
> +CONFIG_INTEL_IOMMU_SVM=y
> # CONFIG_INTEL_IOMMU_DEFAULT_ON is not set
> CONFIG_INTEL_IOMMU_FLOPPY_WA=y
> # CONFIG_INTEL_IOMMU_SCALABLE_MODE_DEFAULT_ON is not set
> -- 
> 2.34.1