Hello Christoph,
Thanks for reviewing the patch!
Christoph Hellwig writes:
>> diff --git a/arch/powerpc/include/asm/mem_encrypt.h
>> b/arch/powerpc/include/asm/mem_encrypt.h
>> new file mode 100644
>> index ..45d5e4d0e6e0
>> --- /dev/null
>> +++
> diff --git a/arch/powerpc/include/asm/mem_encrypt.h
> b/arch/powerpc/include/asm/mem_encrypt.h
> new file mode 100644
> index ..45d5e4d0e6e0
> --- /dev/null
> +++ b/arch/powerpc/include/asm/mem_encrypt.h
> @@ -0,0 +1,19 @@
> +/* SPDX-License-Identifier: GPL-2.0+ */
> +/*
> + * SVM
From: Anshuman Khandual
SWIOTLB checks range of incoming CPU addresses to be bounced and sees if
the device can access it through its DMA window without requiring bouncing.
In such cases it just chooses to skip bouncing. But for cases like secure
guests on powerpc platform all addresses need to
