From: "Suthikulpanit, Suravee" <Suravee.Suthikulpanit@amd.com> To: "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>, "kvm@vger.kernel.org" <kvm@vger.kernel.org> Cc: "pbonzini@redhat.com" <pbonzini@redhat.com>, "rkrcmar@redhat.com" <rkrcmar@redhat.com>, "joro@8bytes.org" <joro@8bytes.org>, "graf@amazon.com" <graf@amazon.com>, "jschoenh@amazon.de" <jschoenh@amazon.de>, "karahmed@amazon.de" <karahmed@amazon.de>, "rimasluk@amazon.com" <rimasluk@amazon.com>, "Grimm, Jon" <Jon.Grimm@amd.com>, "Suthikulpanit, Suravee" <Suravee.Suthikulpanit@amd.com> Subject: [PATCH v2 10/15] kvm: x86: hyperv: Use APICv deactivate request interface Date: Thu, 15 Aug 2019 16:25:15 +0000 Message-ID: <1565886293-115836-11-git-send-email-suravee.suthikulpanit@amd.com> (raw) In-Reply-To: <1565886293-115836-1-git-send-email-suravee.suthikulpanit@amd.com> Since disabling APICv has to be done for all vcpus on AMD-based system, adopt the newly introduced kvm_make_apicv_deactivate_request() intereface. Signed-off-by: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com> --- arch/x86/kvm/hyperv.c | 12 ++++++++++-- 1 file changed, 10 insertions(+), 2 deletions(-) diff --git a/arch/x86/kvm/hyperv.c b/arch/x86/kvm/hyperv.c index a39e38f..4f71a39 100644 --- a/arch/x86/kvm/hyperv.c +++ b/arch/x86/kvm/hyperv.c @@ -772,9 +772,17 @@ int kvm_hv_activate_synic(struct kvm_vcpu *vcpu, bool dont_zero_synic_pages) /* * Hyper-V SynIC auto EOI SINT's are - * not compatible with APICV, so deactivate APICV + * not compatible with APICV, so request + * to deactivate APICV permanently. + * + * Since this requires updating + * APIC_ACCESS_PAGE_PRIVATE_MEMSLOT, + * also take srcu lock. */ - kvm_vcpu_deactivate_apicv(vcpu); + vcpu->srcu_idx = srcu_read_lock(&vcpu->kvm->srcu); + kvm_make_apicv_deactivate_request(vcpu, true); + srcu_read_unlock(&vcpu->kvm->srcu, vcpu->srcu_idx); + synic->active = true; synic->dont_zero_synic_pages = dont_zero_synic_pages; return 0; -- 1.8.3.1
next prev parent reply index Thread overview: 39+ messages / expand[flat|nested] mbox.gz Atom feed top 2019-08-15 16:25 [PATCH v2 00/15] kvm: x86: Support AMD SVM AVIC w/ in-kernel irqchip mode Suthikulpanit, Suravee 2019-08-15 16:25 ` [PATCH v2 01/15] kvm: x86: Modify kvm_x86_ops.get_enable_apicv() to use struct kvm parameter Suthikulpanit, Suravee 2019-08-27 7:15 ` Vitaly Kuznetsov 2019-08-15 16:25 ` [PATCH v2 02/15] kvm: x86: Introduce KVM APICv state Suthikulpanit, Suravee 2019-08-19 9:49 ` Alexander Graf 2019-08-26 19:06 ` Suthikulpanit, Suravee 2019-08-15 16:25 ` [PATCH v2 03/15] kvm: Add arch-specific per-VM debugfs support Suthikulpanit, Suravee 2019-08-15 16:25 ` [PATCH v2 04/15] kvm: x86: Add per-VM APICv state debugfs Suthikulpanit, Suravee 2019-08-19 9:57 ` Alexander Graf 2019-08-26 19:41 ` Suthikulpanit, Suravee 2019-08-27 8:20 ` Alexander Graf 2019-08-28 18:39 ` Suthikulpanit, Suravee 2019-08-28 19:36 ` Graf (AWS), Alexander 2019-08-15 16:25 ` [PATCH v2 05/15] kvm: lapic: Introduce APICv update helper function Suthikulpanit, Suravee 2019-08-27 7:22 ` Vitaly Kuznetsov 2019-08-15 16:25 ` [PATCH v2 06/15] kvm: x86: Add support for activate/de-activate APICv at runtime Suthikulpanit, Suravee 2019-08-27 7:29 ` Vitaly Kuznetsov 2019-08-27 8:05 ` Alexander Graf 2019-08-15 16:25 ` [PATCH v2 07/15] kvm: x86: svm: Add support to activate/deactivate posted interrupts Suthikulpanit, Suravee 2019-08-15 16:25 ` [PATCH v2 08/15] svm: Add support for setup/destroy virutal APIC backing page for AVIC Suthikulpanit, Suravee 2019-08-15 16:25 ` [PATCH v2 09/15] svm: Add support for activate/deactivate AVIC at runtime Suthikulpanit, Suravee 2019-08-19 10:28 ` Alexander Graf 2019-08-15 16:25 ` Suthikulpanit, Suravee [this message] 2019-08-19 10:31 ` [PATCH v2 10/15] kvm: x86: hyperv: Use APICv deactivate request interface Alexander Graf 2019-08-15 16:25 ` [PATCH v2 11/15] svm: Temporary deactivate AVIC during ExtINT handling Suthikulpanit, Suravee 2019-08-19 10:35 ` Alexander Graf 2019-08-28 15:17 ` Suthikulpanit, Suravee 2019-08-28 19:37 ` Graf (AWS), Alexander 2019-09-10 15:46 ` Suthikulpanit, Suravee 2019-08-15 16:25 ` [PATCH v2 12/15] kvm: i8254: Check LAPIC EOI pending when injecting irq on SVM AVIC Suthikulpanit, Suravee 2019-08-19 10:42 ` Alexander Graf 2019-08-26 20:46 ` Suthikulpanit, Suravee 2019-08-27 9:10 ` Alexander Graf 2019-09-13 14:50 ` Suthikulpanit, Suravee 2019-08-15 16:25 ` [PATCH v2 13/15] kvm: lapic: Clean up APIC predefined macros Suthikulpanit, Suravee 2019-08-15 16:25 ` [PATCH v2 14/15] kvm: ioapic: Delay update IOAPIC EOI for RTC Suthikulpanit, Suravee 2019-08-19 11:00 ` Alexander Graf 2019-09-04 2:06 ` Suthikulpanit, Suravee 2019-08-15 16:25 ` [PATCH v2 15/15] svm: Allow AVIC with in-kernel irqchip mode Suthikulpanit, Suravee
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