2022-02-23 19:19:11

by Brijesh Singh

Subject: Re: [PATCH] x86/mm/cpa: Generalize __set_memory_enc_pgtable()

On 2/23/22 06:38, Borislav Petkov wrote:
...

> +static void amd_enc_status_change_prepare(unsigned long vaddr, int npages, bool enc)
> +{
> +}
> +
> +static bool amd_enc_status_change_finish(unsigned long vaddr, int npages, bool enc)
> +{
> + if (cc_platform_has(CC_ATTR_HOST_MEM_ENCRYPT))
> + return false;
^^^^^

We should return true otherwise set_memory_{decrypt,encrypt} will fail
for the SME case.

thanks