From: Yang Zhong <yang.zhong@intel.com>
To: qemu-devel@nongnu.org
Cc: yang.zhong@intel.com, pbonzini@redhat.com, jarkko@kernel.org,
eblake@redhat.com, philmd@redhat.com
Subject: [PATCH v3 4/5] doc: Add the SGX numa description
Date: Mon, 1 Nov 2021 12:20:08 -0400 [thread overview]
Message-ID: <20211101162009.62161-5-yang.zhong@intel.com> (raw)
In-Reply-To: <20211101162009.62161-1-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
----------
next prev parent reply other threads:[~2021-11-01 7:27 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-11-01 16:20 [PATCH v3 0/5] SGX NUMA support plus vepc reset Yang Zhong
2021-11-01 16:20 ` [PATCH v3 1/5] numa: Enable numa for SGX EPC sections Yang Zhong
2021-11-01 16:20 ` [PATCH v3 2/5] monitor: Support 'info numa' command Yang Zhong
2021-11-01 16:20 ` [PATCH v3 3/5] numa: Support SGX numa in the monitor and Libvirt interfaces Yang Zhong
2021-11-10 16:55 ` Eric Blake
2021-11-11 6:18 ` Yang Zhong
2021-11-11 7:55 ` Philippe Mathieu-Daudé
2021-11-11 8:07 ` Yang Zhong
2021-11-11 7:39 ` Paolo Bonzini
2021-11-01 16:20 ` Yang Zhong [this message]
2021-11-01 16:20 ` [PATCH v3 5/5] sgx: Reset the vEPC regions during VM reboot Yang Zhong
2021-11-10 12:52 ` [PATCH v3 0/5] SGX NUMA support plus vepc reset Paolo Bonzini
2021-11-10 12:56 ` Yang Zhong
2021-11-10 16:07 ` Paolo Bonzini
2021-11-11 6:20 ` Yang Zhong
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20211101162009.62161-5-yang.zhong@intel.com \
--to=yang.zhong@intel.com \
--cc=eblake@redhat.com \
--cc=jarkko@kernel.org \
--cc=pbonzini@redhat.com \
--cc=philmd@redhat.com \
--cc=qemu-devel@nongnu.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).