- 26 11月, 2015 1 次提交
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由 Andrey Smetanin 提交于
SynIC (synthetic interrupt controller) is a lapic extension, which is controlled via MSRs and maintains for each vCPU - 16 synthetic interrupt "lines" (SINT's); each can be configured to trigger a specific interrupt vector optionally with auto-EOI semantics - a message page in the guest memory with 16 256-byte per-SINT message slots - an event flag page in the guest memory with 16 2048-bit per-SINT event flag areas The host triggers a SINT whenever it delivers a new message to the corresponding slot or flips an event flag bit in the corresponding area. The guest informs the host that it can try delivering a message by explicitly asserting EOI in lapic or writing to End-Of-Message (EOM) MSR. The userspace (qemu) triggers interrupts and receives EOM notifications via irqfd with resampler; for that, a GSI is allocated for each configured SINT, and irq_routing api is extended to support GSI-SINT mapping. Changes v4: * added activation of SynIC by vcpu KVM_ENABLE_CAP * added per SynIC active flag * added deactivation of APICv upon SynIC activation Changes v3: * added KVM_CAP_HYPERV_SYNIC and KVM_IRQ_ROUTING_HV_SINT notes into docs Changes v2: * do not use posted interrupts for Hyper-V SynIC AutoEOI vectors * add Hyper-V SynIC vectors into EOI exit bitmap * Hyper-V SyniIC SINT msr write logic simplified Signed-off-by: NAndrey Smetanin <asmetanin@virtuozzo.com> Reviewed-by: NRoman Kagan <rkagan@virtuozzo.com> Signed-off-by: NDenis V. Lunev <den@openvz.org> CC: Gleb Natapov <gleb@kernel.org> CC: Paolo Bonzini <pbonzini@redhat.com> CC: Roman Kagan <rkagan@virtuozzo.com> CC: Denis V. Lunev <den@openvz.org> CC: qemu-devel@nongnu.org Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>
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- 01 10月, 2015 2 次提交
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由 Andrey Smetanin 提交于
HV_X64_MSR_VP_RUNTIME msr used by guest to get "the time the virtual processor consumes running guest code, and the time the associated logical processor spends running hypervisor code on behalf of that guest." Calculation of this time is performed by task_cputime_adjusted() for vcpu task. Necessary to support loading of winhv.sys in guest, which in turn is required to support Windows VMBus. Signed-off-by: NAndrey Smetanin <asmetanin@virtuozzo.com> Reviewed-by: NRoman Kagan <rkagan@virtuozzo.com> Signed-off-by: NDenis V. Lunev <den@openvz.org> CC: Paolo Bonzini <pbonzini@redhat.com> CC: Gleb Natapov <gleb@kernel.org> Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>
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由 Andrey Smetanin 提交于
HV_X64_MSR_RESET msr is used by Hyper-V based Windows guest to reset guest VM by hypervisor. Necessary to support loading of winhv.sys in guest, which in turn is required to support Windows VMBus. Signed-off-by: NAndrey Smetanin <asmetanin@virtuozzo.com> Reviewed-by: NRoman Kagan <rkagan@virtuozzo.com> Signed-off-by: NDenis V. Lunev <den@openvz.org> CC: Paolo Bonzini <pbonzini@redhat.com> CC: Gleb Natapov <gleb@kernel.org> Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>
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- 23 7月, 2015 2 次提交
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由 Andrey Smetanin 提交于
Added kvm Hyper-V context hv crash variables as storage of Hyper-V crash msrs. Signed-off-by: NAndrey Smetanin <asmetanin@virtuozzo.com> Signed-off-by: NDenis V. Lunev <den@openvz.org> Reviewed-by: NPeter Hornyack <peterhornyack@google.com> CC: Paolo Bonzini <pbonzini@redhat.com> CC: Gleb Natapov <gleb@kernel.org> Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>
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由 Andrey Smetanin 提交于
This patch introduce Hyper-V related source code file - hyperv.c and per vm and per vcpu hyperv context structures. All Hyper-V MSR's and hypercall code moved into hyperv.c. All Hyper-V kvm/vcpu fields moved into appropriate hyperv context structures. Copyrights and authors information copied from x86.c to hyperv.c. Signed-off-by: NAndrey Smetanin <asmetanin@virtuozzo.com> Signed-off-by: NDenis V. Lunev <den@openvz.org> Reviewed-by: NPeter Hornyack <peterhornyack@google.com> CC: Paolo Bonzini <pbonzini@redhat.com> CC: Gleb Natapov <gleb@kernel.org> Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>
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