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a=rsa-sha256; c=relaxed/relaxed; d=akamai.com; h=cc :content-transfer-encoding:date:from:in-reply-to:message-id :mime-version:references:subject:to; s=jan2016.eng; bh=jDMMzO2S8 y/O7jz9jKaIIecVE1WZ2YKtY5NIls68swI=; b=f3qWc12LlO1iXOReo+u/Lw48R wkLg0F2kT1CwTLli4WPb6+/fYZFlBK8qR7xGENVlZHged5dP6+C08h1bf7nL4xnz LZXmlGVCKIvTzrwsJMK2ouujlJu07JcDuySvg8Ko4yt9MKTG9WzGIkN05zO5D75L XZsUnEqjHoMDfyzV0bPmrwrp0KI9qjpRlczGOvrIdadRXSXE6VsZrczFp0jJIcTj kZW6Rv7gnkkMFBW0u2KWFlerKGsOE/kxh/ZaJbZllMNwihy2Frik1v1+RClkaxUs viElcJBZOcQq29HCLTY3go08jo/K8t3FpcF1y0Q4q1pTlGiwUbmUBqgGx5LRA== To: devel@lists.libvirt.org Subject: [PATCH v3 3/4] Update configuration file documentation to support multiple memory backends Date: Thu, 15 Aug 2024 18:13:07 -0400 Message-Id: <20240815221308.3892813-4-mgalaxy@akamai.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240815221308.3892813-1-mgalaxy@akamai.com> References: <20240815221308.3892813-1-mgalaxy@akamai.com> MIME-Version: 1.0 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1039,Hydra:6.0.680,FMLib:17.12.28.16 definitions=2024-08-15_14,2024-08-15_01,2024-05-17_01 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 suspectscore=0 malwarescore=0 bulkscore=0 mlxscore=0 adultscore=0 spamscore=0 mlxlogscore=999 phishscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2407110000 definitions=main-2408150161 X-Proofpoint-GUID: JqGj_-Kle1RafslYhmJSDiKCIp_0eSae X-Proofpoint-ORIG-GUID: JqGj_-Kle1RafslYhmJSDiKCIp_0eSae X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1039,Hydra:6.0.680,FMLib:17.12.28.16 definitions=2024-08-15_14,2024-08-15_01,2024-05-17_01 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 priorityscore=1501 adultscore=0 mlxlogscore=999 lowpriorityscore=0 phishscore=0 clxscore=1015 mlxscore=0 spamscore=0 malwarescore=0 suspectscore=0 impostorscore=0 bulkscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2407110000 definitions=main-2408150162 Content-Transfer-Encoding: quoted-printable Message-ID-Hash: IMYX6AVUU6CB5ARJJ2ZTMW6AX57PN4JK X-Message-ID-Hash: IMYX6AVUU6CB5ARJJ2ZTMW6AX57PN4JK X-MailFrom: mgalaxy@akamai.com X-Mailman-Rule-Misses: dmarc-mitigation; no-senders; approved; emergency; loop; banned-address; member-moderation; header-match-config-1; header-match-config-2; header-match-config-3; header-match-devel.lists.libvirt.org-0; nonmember-moderation; administrivia; implicit-dest; max-recipients; max-size; news-moderation; no-subject; suspicious-header CC: steven.sistare@oracle.com, johunt@akamai.com, cweng@akamai.com, bchaney@akamai.com, trakotoz@akamai.com, mkletzan@redhat.com, anthony.yznaga@oracle.com, mprivozn@redhat.com, Michael Galaxy X-Mailman-Version: 3.2.2 Precedence: list List-Id: Development discussions about the libvirt library & tools Archived-At: List-Archive: List-Help: List-Post: List-Subscribe: List-Unsubscribe: From: Michael Galaxy via Devel Reply-To: mgalaxy@akamai.com X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZM-MESSAGEID: 1723760046884116600 Content-Type: text/plain; charset="utf-8" From: Michael Galaxy Signed-off-by: Michael Galaxy --- docs/kbase/virtiofs.rst | 2 ++ src/qemu/qemu.conf.in | 4 ++++ 2 files changed, 6 insertions(+) diff --git a/docs/kbase/virtiofs.rst b/docs/kbase/virtiofs.rst index 457c15da7f..931ba96104 100644 --- a/docs/kbase/virtiofs.rst +++ b/docs/kbase/virtiofs.rst @@ -144,6 +144,8 @@ memobject interface). =20 # This directory is used for memoryBacking source if configured as = file. # NOTE: big files will be stored here + # NOTE: In the case of a NUMA-aware system (such has shm/tmpfs or P= MEM), + # one can also do: memory_backing_dir =3D [ "/path/to/node/0"= , "/path/to/node/1" ] memory_backing_dir =3D "/dev/shm/" =20 * Use hugepage-backed memory diff --git a/src/qemu/qemu.conf.in b/src/qemu/qemu.conf.in index 6bc2140dcb..3c52de0192 100644 --- a/src/qemu/qemu.conf.in +++ b/src/qemu/qemu.conf.in @@ -897,6 +897,10 @@ =20 # This directory is used for memoryBacking source if configured as file. # NOTE: big files will be stored here +# NOTE: In the case of a NUMA-aware system (such has shm/tmpfs or PMEM), +# one can also do: memory_backing_dir =3D [ "/path/to/node/0", "/pat= h/to/node/1" ] +# Be advised that the number of backing directories needs to match +# the number of NUMA nodes on the system. #memory_backing_dir =3D "/var/lib/libvirt/qemu/ram" =20 # Path to the SCSI persistent reservations helper. This helper is --=20 2.34.1