Hi Borislav:
	Thanks for your review.

On 12/7/2021 5:47 PM, Borislav Petkov wrote:

On Tue, Dec 07, 2021 at 02:55:58AM -0500, Tianyu Lan wrote:

quoted

From: Tianyu Lan <redacted>

Hyper-V provides Isolation VM which has memory encrypt support. Add
hyperv_cc_platform_has() and return true for check of GUEST_MEM_ENCRYPT
attribute.

You need to refresh on how to write commit messages - never say what the
patch is doing - that's visible in the diff itself. Rather, you should
talk about *why* it is doing what it is doing.

Sure. Will update.

quoted

  bool cc_platform_has(enum cc_attr attr)
  {
+	if (hv_is_isolation_supported())
+		return hyperv_cc_platform_has(attr);

Is there any reason for the hv_is_.. check to come before...

Do you mean to check hyper-v before sev? If yes, no special reason.

quoted

+
  	if (sme_me_mask)
  		return amd_cc_platform_has(attr);

... the sme_me_mask check?

What's in sme_me_mask on hyperv?

sme_me_mask is unset in this case.