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From: Yang Zhong <yang.zhong@intel.com>
To: qemu-devel@nongnu.org
Cc: yang.zhong@intel.com, pbonzini@redhat.com, eblake@redhat.com,
	philmd@redhat.com
Subject: [PATCH 6/6] doc: Add the SGX numa description
Date: Mon, 11 Oct 2021 19:15:54 +0800	[thread overview]
Message-ID: <20211011111554.12403-7-yang.zhong@intel.com> (raw)
In-Reply-To: <20211011111554.12403-1-yang.zhong@intel.com>

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>
---
 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 f103ae2a2f..9e4ada761f 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
 ----------


      parent reply	other threads:[~2021-10-11 11:29 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-10-11 11:15 [PATCH 0/6] SGX NUMA support Yang Zhong
2021-10-11 11:15 ` [PATCH 1/6] numa: Enable numa for SGX EPC sections Yang Zhong
2021-10-11 16:32   ` Eric Blake
2021-10-20  7:02     ` Yang Zhong
2021-10-11 11:15 ` [PATCH 2/6] monitor: Support 'info numa' command Yang Zhong
2021-10-11 11:15 ` [PATCH 3/6] numa: Add SGXEPCSection list for multiple sections Yang Zhong
2021-10-11 17:03   ` Eric Blake
2021-10-12 11:01     ` Paolo Bonzini
2021-10-20  8:06     ` Yang Zhong
2021-10-12 11:01   ` Paolo Bonzini
2021-10-20  8:08     ` Yang Zhong
2021-10-11 11:15 ` [PATCH 4/6] monitor: numa support for 'info sgx' command Yang Zhong
2021-10-12 10:59   ` Paolo Bonzini
2021-10-20  7:08     ` Yang Zhong
2021-10-11 11:15 ` [PATCH 5/6] numa: Enable numa for libvirt interface Yang Zhong
2021-10-12 10:59   ` Paolo Bonzini
2021-10-11 11:15 ` Yang Zhong [this message]

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