From e25884e4e0ee839b591836ae33681ac9a52883ce Mon Sep 17 00:00:00 2001
From: jiangxin <jiangxin@hygon.cn>
Date: Wed, 25 Aug 2021 12:36:00 +0800
Subject: [PATCH 6/8] anolis: csv/i386: CSV guest do not need
 register/unregister guest secure memory

CSV guest memory is allocated by firmware in secure processor
from dedicated memory reserved upon system boot up,
consequently it is not necessary to add notifier to pin/unpin memory.

Signed-off-by: Xin Jiang <jiangxin@hygon.cn>
Change-Id: I10d5b5ee8dbc3a1bf9ed1935c006c61a094f1e8d
---
 target/i386/sev.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/target/i386/sev.c b/target/i386/sev.c
index 73a794ef74..36669bbdf4 100644
--- a/target/i386/sev.c
+++ b/target/i386/sev.c
@@ -973,7 +973,10 @@ int sev_kvm_init(ConfidentialGuestSupport *cgs, Error **errp)
         goto err;
     }
 
-    ram_block_notifier_add(&sev_ram_notifier);
+    /* CSV guest needs no notifier to reg/unreg memory */
+    if (!csv_enabled()) {
+        ram_block_notifier_add(&sev_ram_notifier);
+    }
     qemu_add_machine_init_done_notifier(&sev_machine_done_notify);
     qemu_add_vm_change_state_handler(sev_vm_state_change, sev);
 
-- 
2.17.1