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Sat, 15 Feb 2025 00:37:01 -0800 (PST) From: yong.huang@smartx.com To: devel@lists.libvirt.org Subject: [PATCH v1 2/3] qemu_driver: Implement qemuDomainSetVcpuTuneParameters Date: Sat, 15 Feb 2025 16:35:52 +0800 Message-Id: <1ff1bcc3f34d6e384d78333ca4445ca05cfdd204.1739608445.git.yong.huang@smartx.com> X-Mailer: git-send-email 2.27.0 In-Reply-To: References: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Message-ID-Hash: 3PX2FOH43FUHKVCCNCNFD4YZU4ACZLKR X-Message-ID-Hash: 3PX2FOH43FUHKVCCNCNFD4YZU4ACZLKR X-MailFrom: yong.huang@smartx.com X-Mailman-Rule-Hits: nonmember-moderation 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 CC: yong.huang@smartx.com 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: X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZM-MESSAGEID: 1739608696460019100 Content-Type: text/plain; charset="utf-8" From: Hyman Huang Support hotplug/hotunplug of virtual CPU by wrapping the existing interface qemuDomainSetVcpu. Signed-off-by: Hyman Huang --- include/libvirt/libvirt-domain.h | 12 ++++++++++++ src/qemu/qemu_driver.c | 29 +++++++++++++++++++++++++++++ 2 files changed, 41 insertions(+) diff --git a/include/libvirt/libvirt-domain.h b/include/libvirt/libvirt-dom= ain.h index ae1e07b7b6..16e3140e09 100644 --- a/include/libvirt/libvirt-domain.h +++ b/include/libvirt/libvirt-domain.h @@ -6612,6 +6612,18 @@ virDomainGraphicsReload(virDomainPtr domain, unsigned int type, unsigned int flags); =20 +/* Virtual CPU set parameters */ + +/** + * VIR_DOMAIN_VCPU_STATE: + * + * The tunable enable/disable individual vcpus described by @vcpumap + * in the hypervisor* + * + * Since: 11.1.0 + */ +# define VIR_DOMAIN_VCPU_STATE "state" + /** * virDomainSetVcpuTuneParameters: * diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c index 772cb405d6..59d94c6dd6 100644 --- a/src/qemu/qemu_driver.c +++ b/src/qemu/qemu_driver.c @@ -20081,6 +20081,34 @@ qemuDomainGraphicsReload(virDomainPtr domain, return ret; } =20 +static int +qemuDomainSetVcpuTuneParameters(virDomainPtr dom, + const char *vcpumap, + virTypedParameterPtr params, + int nparams, + unsigned int flags) +{ + int state; + int rc; + + if (virTypedParamsValidate(params, nparams, + VIR_DOMAIN_VCPU_STATE, + VIR_TYPED_PARAM_INT, + NULL) < 0) + return -1; + + if ((rc =3D virTypedParamsGetInt(params, nparams, + VIR_DOMAIN_VCPU_STATE, + &state)) < 0) + return -1; + + if (rc =3D=3D 1) { + return qemuDomainSetVcpu(dom, vcpumap, state, flags); + } + + return 0; +} + static virHypervisorDriver qemuHypervisorDriver =3D { .name =3D QEMU_DRIVER_NAME, .connectURIProbe =3D qemuConnectURIProbe, @@ -20331,6 +20359,7 @@ static virHypervisorDriver qemuHypervisorDriver =3D= { .domainSetLaunchSecurityState =3D qemuDomainSetLaunchSecurityState, /*= 8.0.0 */ .domainFDAssociate =3D qemuDomainFDAssociate, /* 9.0.0 */ .domainGraphicsReload =3D qemuDomainGraphicsReload, /* 10.2.0 */ + .domainSetVcpuTuneParameters =3D qemuDomainSetVcpuTuneParameters, /* 1= 1.1.0 */ }; =20 =20 --=20 2.27.0