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Fri, 07 Nov 2025 12:14:11 -0800 (PST) From: Praveen K Paladugu To: devel@lists.libvirt.org Subject: [PATCH v4 5/9] qemu: conditionally add /dev/mshv to acl Date: Fri, 7 Nov 2025 14:13:56 -0600 Message-ID: <20251107201401.30004-6-praveenkpaladugu@gmail.com> X-Mailer: git-send-email 2.51.0 In-Reply-To: <20251107201401.30004-1-praveenkpaladugu@gmail.com> References: <20251107201401.30004-1-praveenkpaladugu@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Message-ID-Hash: LHAPDTDCRRN3UZGB4YLVKIJMOJY2JDGA X-Message-ID-Hash: LHAPDTDCRRN3UZGB4YLVKIJMOJY2JDGA X-MailFrom: praveenkpaladugu@gmail.com X-Mailman-Rule-Misses: dmarc-mitigation; no-senders; approved; loop; banned-address; header-match-devel.lists.libvirt.org-0; emergency; member-moderation; nonmember-moderation; administrivia; implicit-dest; max-recipients; max-size; news-moderation; no-subject; digests; suspicious-header CC: wei.liu@kernel.org X-Mailman-Version: 3.3.10 Precedence: list List-Id: Development discussions about the libvirt library & tools Archived-At: List-Archive: List-Help: List-Owner: List-Post: List-Subscribe: List-Unsubscribe: X-ZohoMail-DKIM: pass (identity @gmail.com) X-ZM-MESSAGEID: 1762546852826158500 Content-Type: text/plain; charset="utf-8" From: Praveen K Paladugu Conditionally add /dev/mshv device to acl while launching hyperv domains. Signed-off-by: Praveen K Paladugu Reviewed-by: Martin Kletzander --- src/qemu/qemu_cgroup.c | 6 ++++++ src/qemu/qemu_namespace.c | 2 ++ 2 files changed, 8 insertions(+) diff --git a/src/qemu/qemu_cgroup.c b/src/qemu/qemu_cgroup.c index 46a7dc1d8b..7dadef0739 100644 --- a/src/qemu/qemu_cgroup.c +++ b/src/qemu/qemu_cgroup.c @@ -788,6 +788,12 @@ qemuSetupDevicesCgroup(virDomainObj *vm) false) < 0) return -1; } + if (vm->def->virtType =3D=3D VIR_DOMAIN_VIRT_HYPERV) { + /* HYPERV domains require access to /dev/mshv */ + if (qemuCgroupAllowDevicePath(vm, "/dev/mshv", VIR_CGROUP_DEVICE_R= W, + false) < 0) + return -1; + } =20 if (qemuSetupFirmwareCgroup(vm) < 0) return -1; diff --git a/src/qemu/qemu_namespace.c b/src/qemu/qemu_namespace.c index 932777505b..c689cc3e40 100644 --- a/src/qemu/qemu_namespace.c +++ b/src/qemu/qemu_namespace.c @@ -221,6 +221,8 @@ qemuDomainPopulateDevices(virQEMUDriverConfig *cfg, =20 if (vm->def->virtType =3D=3D VIR_DOMAIN_VIRT_KVM) { *paths =3D g_slist_prepend(*paths, g_strdup(QEMU_DEV_KVM)); + } else if (vm->def->virtType =3D=3D VIR_DOMAIN_VIRT_HYPERV) { + *paths =3D g_slist_prepend(*paths, g_strdup("/dev/mshv")); } } =20 --=20 2.51.0