On 7/30/21 5:34 PM, Sean Christopherson wrote:
> On Tue, Jul 27, 2021, Tom Lendacky wrote:
>> @@ -451,7 +450,7 @@ void __init mem_encrypt_free_decrypted_mem(void)
>>       * The unused memory range was mapped decrypted, change the encryption
>>       * attribute from decrypted to encrypted before freeing it.
>>       */
>> -    if (mem_encrypt_active()) {
>> +    if (sme_me_mask) {
> 
> Any reason this uses sme_me_mask?  The helper it calls, 
> __set_memory_enc_dec(),
> uses prot_guest_has(PATTR_MEM_ENCRYPT) so I assume it's available?

Probably just a slip on my part. I was debating at one point calling the
helper vs. referencing the variables/functions directly in the
mem_encrypt.c file.

Thanks,
Tom

> 
>>              r = set_memory_encrypted(vaddr, npages);
>>              if (r) {
>>                      pr_warn("failed to free unused decrypted pages\n");
> 

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