On 8/23/21 9:16 AM, Borislav Petkov wrote:
On Fri, Aug 20, 2021 at 10:19:06AM -0500, Brijesh Singh wrote:
diff --git a/arch/x86/include/asm/sev-common.h b/arch/x86/include/asm/sev-common.h
index d426c30ae7b4..1cd8ce838af8 100644
--- a/arch/x86/include/asm/sev-common.h
+++ b/arch/x86/include/asm/sev-common.h
@@ -57,6 +57,26 @@
#define GHCB_MSR_AP_RESET_HOLD_REQ 0x006
#define GHCB_MSR_AP_RESET_HOLD_RESP 0x007
+/* SNP Page State Change */
Let's make it very clear here that those cmd numbers below are actually
part of the protocol and not randomly chosen:
/*
* ...
*
* 0x014 – SNP Page State Change Request
*
* GHCBData[55:52] – Page operation:
* 0x0001 – Page assignment, Private
* 0x0002 – Page assignment, Shared
*/
Noted.
thanks
