mirror of
https://github.com/kata-containers/kata-containers.git
synced 2025-07-01 09:42:45 +00:00
b4b9068cb7
There are a few patches for SGX numa support in QEMU added after the 6.2.0 release. Add them for SGX support in Kata. Fixes #4254 Signed-off-by: Chelsea Mafrica <chelsea.e.mafrica@intel.com>
68 lines
2.5 KiB
Diff
68 lines
2.5 KiB
Diff
From d1889b36098c79e2e6ac90faf3d0dc5ec0057677 Mon Sep 17 00:00:00 2001
|
|
From: Yang Zhong <yang.zhong@intel.com>
|
|
Date: Mon, 1 Nov 2021 12:20:08 -0400
|
|
Subject: [PATCH 3/3] doc: Add the SGX numa description
|
|
|
|
Add the SGX numa reference command and how to check if
|
|
SGX numa is support or not with multiple EPC sections.
|
|
|
|
Signed-off-by: Yang Zhong <yang.zhong@intel.com>
|
|
Message-Id: <20211101162009.62161-5-yang.zhong@intel.com>
|
|
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
|
|
---
|
|
docs/system/i386/sgx.rst | 31 +++++++++++++++++++++++++++----
|
|
1 file changed, 27 insertions(+), 4 deletions(-)
|
|
|
|
diff --git a/docs/system/i386/sgx.rst b/docs/system/i386/sgx.rst
|
|
index f8fade5ac2..0f0a73f758 100644
|
|
--- a/docs/system/i386/sgx.rst
|
|
+++ b/docs/system/i386/sgx.rst
|
|
@@ -141,8 +141,7 @@ To launch a SGX guest:
|
|
|qemu_system_x86| \\
|
|
-cpu host,+sgx-provisionkey \\
|
|
-object memory-backend-epc,id=mem1,size=64M,prealloc=on \\
|
|
- -object memory-backend-epc,id=mem2,size=28M \\
|
|
- -M sgx-epc.0.memdev=mem1,sgx-epc.1.memdev=mem2
|
|
+ -M sgx-epc.0.memdev=mem1,sgx-epc.0.node=0
|
|
|
|
Utilizing SGX in the guest requires a kernel/OS with SGX support.
|
|
The support can be determined in guest by::
|
|
@@ -152,8 +151,32 @@ The support can be determined in guest by::
|
|
and SGX epc info by::
|
|
|
|
$ dmesg | grep sgx
|
|
- [ 1.242142] sgx: EPC section 0x180000000-0x181bfffff
|
|
- [ 1.242319] sgx: EPC section 0x181c00000-0x1837fffff
|
|
+ [ 0.182807] sgx: EPC section 0x140000000-0x143ffffff
|
|
+ [ 0.183695] sgx: [Firmware Bug]: Unable to map EPC section to online node. Fallback to the NUMA node 0.
|
|
+
|
|
+To launch a SGX numa guest:
|
|
+
|
|
+.. parsed-literal::
|
|
+
|
|
+ |qemu_system_x86| \\
|
|
+ -cpu host,+sgx-provisionkey \\
|
|
+ -object memory-backend-ram,size=2G,host-nodes=0,policy=bind,id=node0 \\
|
|
+ -object memory-backend-epc,id=mem0,size=64M,prealloc=on,host-nodes=0,policy=bind \\
|
|
+ -numa node,nodeid=0,cpus=0-1,memdev=node0 \\
|
|
+ -object memory-backend-ram,size=2G,host-nodes=1,policy=bind,id=node1 \\
|
|
+ -object memory-backend-epc,id=mem1,size=28M,prealloc=on,host-nodes=1,policy=bind \\
|
|
+ -numa node,nodeid=1,cpus=2-3,memdev=node1 \\
|
|
+ -M sgx-epc.0.memdev=mem0,sgx-epc.0.node=0,sgx-epc.1.memdev=mem1,sgx-epc.1.node=1
|
|
+
|
|
+and SGX epc numa info by::
|
|
+
|
|
+ $ dmesg | grep sgx
|
|
+ [ 0.369937] sgx: EPC section 0x180000000-0x183ffffff
|
|
+ [ 0.370259] sgx: EPC section 0x184000000-0x185bfffff
|
|
+
|
|
+ $ dmesg | grep SRAT
|
|
+ [ 0.009981] ACPI: SRAT: Node 0 PXM 0 [mem 0x180000000-0x183ffffff]
|
|
+ [ 0.009982] ACPI: SRAT: Node 1 PXM 1 [mem 0x184000000-0x185bfffff]
|
|
|
|
References
|
|
----------
|
|
--
|
|
2.25.1
|
|
|