Re: [PATCH 1/2] KVM: SVM: fix svn_pin_memory()'s use of get_user_pages_fast()

[John Hubbard]

On 2020-05-26 00:33, Vitaly Kuznetsov wrote:
...

I bit unrelated to this patch, but callers of sev_pin_memory() treat
NULL differently:

sev_launch_secret()/svm_register_enc_region() return -ENOMEM
sev_dbg_crypt() returns -EFAULT

Should we switch to ERR_PTR() to preserve the error?

        /* Avoid using vmalloc for smaller buffers. */
        size = npages * sizeof(struct page *);
        if (size > PAGE_SIZE)

Reviewed-by: Vitaly Kuznetsov <vkuzn...@redhat.com>

Thanks for the review, Vitaly. If anyone is able to do any run-time
testing of this patch and also patch 2/2, then I think a maintainer
would be more willing to pick them up.

Any testing help there is greatly appreciated!


thanks,
--
John Hubbard
NVIDIA