|
 |
60061b |
From e8377e3f4d540e2594a50985523e87d1f3cabbc7 Mon Sep 17 00:00:00 2001
|
|
|
60061b |
From: Yang Zhong <yang.zhong@intel.com>
|
|
|
60061b |
Date: Mon, 1 Nov 2021 12:20:08 -0400
|
|
|
60061b |
Subject: [PATCH 3/7] doc: Add the SGX numa description
|
|
|
60061b |
|
|
|
60061b |
RH-Author: Paul Lai <None>
|
|
|
60061b |
RH-MergeRequest: 111: numa: Enable numa for SGX EPC sections
|
|
|
60061b |
RH-Commit: [3/5] 41c74688c9662b966c243566a837135ff52341c4
|
|
|
60061b |
RH-Bugzilla: 1518984
|
|
|
60061b |
RH-Acked-by: Paolo Bonzini <None>
|
|
|
60061b |
RH-Acked-by: Bandan Das <None>
|
|
|
60061b |
RH-Acked-by: Cornelia Huck <cohuck@redhat.com>
|
|
|
60061b |
|
|
|
60061b |
Add the SGX numa reference command and how to check if
|
|
|
60061b |
SGX numa is support or not with multiple EPC sections.
|
|
|
60061b |
|
|
|
60061b |
Signed-off-by: Yang Zhong <yang.zhong@intel.com>
|
|
|
60061b |
Message-Id: <20211101162009.62161-5-yang.zhong@intel.com>
|
|
|
60061b |
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
|
|
|
60061b |
(cherry picked from commit d1889b36098c79e2e6ac90faf3d0dc5ec0057677)
|
|
|
60061b |
Signed-off-by: Paul Lai <plai@redhat.com>
|
|
|
60061b |
---
|
|
|
60061b |
docs/system/i386/sgx.rst | 31 +++++++++++++++++++++++++++----
|
|
|
60061b |
1 file changed, 27 insertions(+), 4 deletions(-)
|
|
|
60061b |
|
|
|
60061b |
diff --git a/docs/system/i386/sgx.rst b/docs/system/i386/sgx.rst
|
|
|
60061b |
index f8fade5ac2..0f0a73f758 100644
|
|
|
60061b |
--- a/docs/system/i386/sgx.rst
|
|
|
60061b |
+++ b/docs/system/i386/sgx.rst
|
|
|
60061b |
@@ -141,8 +141,7 @@ To launch a SGX guest:
|
|
|
60061b |
|qemu_system_x86| \\
|
|
|
60061b |
-cpu host,+sgx-provisionkey \\
|
|
|
60061b |
-object memory-backend-epc,id=mem1,size=64M,prealloc=on \\
|
|
|
60061b |
- -object memory-backend-epc,id=mem2,size=28M \\
|
|
|
60061b |
- -M sgx-epc.0.memdev=mem1,sgx-epc.1.memdev=mem2
|
|
|
60061b |
+ -M sgx-epc.0.memdev=mem1,sgx-epc.0.node=0
|
|
|
60061b |
|
|
|
60061b |
Utilizing SGX in the guest requires a kernel/OS with SGX support.
|
|
|
60061b |
The support can be determined in guest by::
|
|
|
60061b |
@@ -152,8 +151,32 @@ The support can be determined in guest by::
|
|
|
60061b |
and SGX epc info by::
|
|
|
60061b |
|
|
|
60061b |
$ dmesg | grep sgx
|
|
|
60061b |
- [ 1.242142] sgx: EPC section 0x180000000-0x181bfffff
|
|
|
60061b |
- [ 1.242319] sgx: EPC section 0x181c00000-0x1837fffff
|
|
|
60061b |
+ [ 0.182807] sgx: EPC section 0x140000000-0x143ffffff
|
|
|
60061b |
+ [ 0.183695] sgx: [Firmware Bug]: Unable to map EPC section to online node. Fallback to the NUMA node 0.
|
|
|
60061b |
+
|
|
|
60061b |
+To launch a SGX numa guest:
|
|
|
60061b |
+
|
|
|
60061b |
+.. parsed-literal::
|
|
|
60061b |
+
|
|
|
60061b |
+ |qemu_system_x86| \\
|
|
|
60061b |
+ -cpu host,+sgx-provisionkey \\
|
|
|
60061b |
+ -object memory-backend-ram,size=2G,host-nodes=0,policy=bind,id=node0 \\
|
|
|
60061b |
+ -object memory-backend-epc,id=mem0,size=64M,prealloc=on,host-nodes=0,policy=bind \\
|
|
|
60061b |
+ -numa node,nodeid=0,cpus=0-1,memdev=node0 \\
|
|
|
60061b |
+ -object memory-backend-ram,size=2G,host-nodes=1,policy=bind,id=node1 \\
|
|
|
60061b |
+ -object memory-backend-epc,id=mem1,size=28M,prealloc=on,host-nodes=1,policy=bind \\
|
|
|
60061b |
+ -numa node,nodeid=1,cpus=2-3,memdev=node1 \\
|
|
|
60061b |
+ -M sgx-epc.0.memdev=mem0,sgx-epc.0.node=0,sgx-epc.1.memdev=mem1,sgx-epc.1.node=1
|
|
|
60061b |
+
|
|
|
60061b |
+and SGX epc numa info by::
|
|
|
60061b |
+
|
|
|
60061b |
+ $ dmesg | grep sgx
|
|
|
60061b |
+ [ 0.369937] sgx: EPC section 0x180000000-0x183ffffff
|
|
|
60061b |
+ [ 0.370259] sgx: EPC section 0x184000000-0x185bfffff
|
|
|
60061b |
+
|
|
|
60061b |
+ $ dmesg | grep SRAT
|
|
|
60061b |
+ [ 0.009981] ACPI: SRAT: Node 0 PXM 0 [mem 0x180000000-0x183ffffff]
|
|
|
60061b |
+ [ 0.009982] ACPI: SRAT: Node 1 PXM 1 [mem 0x184000000-0x185bfffff]
|
|
|
60061b |
|
|
|
60061b |
References
|
|
|
60061b |
----------
|
|
|
60061b |
--
|
|
|
60061b |
2.27.0
|
|
|
60061b |
|