From: Paolo Bonzini <pbonzini@redhat.com>
To: qemu-devel@nongnu.org
Cc: Yang Zhong <yang.zhong@intel.com>
Subject: [PULL 12/13] doc: Add the SGX numa description
Date: Wed, 15 Dec 2021 21:25:14 +0100 [thread overview]
Message-ID: <20211215202515.91586-13-pbonzini@redhat.com> (raw)
In-Reply-To: <20211215202515.91586-1-pbonzini@redhat.com>
From: Yang Zhong <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>
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
----------
--
2.33.1
next prev parent reply other threads:[~2021-12-15 20:31 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-12-15 20:25 [PULL 00/13] Misc patches for 2021-12-15 Paolo Bonzini
2021-12-15 20:25 ` [PULL 01/13] hw/scsi/lsi53c895a: Do not abort when DMA requested and no data queued Paolo Bonzini
2021-12-15 20:25 ` [PULL 02/13] tests/qtest: Add fuzz-lsi53c895a-test Paolo Bonzini
2021-12-15 20:25 ` [PULL 03/13] qapi/machine.json: Fix incorrect description for die-id Paolo Bonzini
2021-12-15 20:25 ` [PULL 04/13] scripts/entitlement.sh: Use backward-compatible cp flags Paolo Bonzini
2021-12-15 20:25 ` [PULL 05/13] virtio-gpu: do not byteswap padding Paolo Bonzini
2021-12-15 20:25 ` [PULL 06/13] linux-headers: update to 5.16-rc1 Paolo Bonzini
2021-12-15 20:25 ` [PULL 07/13] gdbstub: reject unsupported flags in handle_set_qemu_sstep Paolo Bonzini
2021-12-15 20:25 ` [PULL 08/13] gdbstub, kvm: let KVM report supported singlestep flags Paolo Bonzini
2021-12-15 20:25 ` [PULL 09/13] kvm: add support for KVM_GUESTDBG_BLOCKIRQ Paolo Bonzini
2021-12-15 20:25 ` [PULL 10/13] numa: Enable numa for SGX EPC sections Paolo Bonzini
2022-01-13 16:16 ` Daniel P. Berrangé
2021-12-15 20:25 ` [PULL 11/13] numa: Support SGX numa in the monitor and Libvirt interfaces Paolo Bonzini
2022-01-13 16:15 ` Daniel P. Berrangé
2022-01-17 10:37 ` Yang Zhong
2022-01-19 9:19 ` Daniel P. Berrangé
2021-12-15 20:25 ` Paolo Bonzini [this message]
2021-12-15 20:25 ` [PULL 13/13] configure: remove dead variables Paolo Bonzini
2021-12-16 18:19 ` [PULL 00/13] Misc patches for 2021-12-15 Richard Henderson
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