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H A D | xen_apic.c | b2802351 Tue Nov 12 10:31:28 GMT 2019 Roger Pau Monné <royger@FreeBSD.org> xen: fix dispatching of NMIs
Currently NMIs are sent over event channels, but that defeats the purpose of NMIs since event channels can be masked. Fix this by issuing NMIs using a hypercall, which injects a NMI (vector #2) to the desired vCPU.
Note that NMIs could also be triggered using the emulated local APIC, but using a hypercall is better from a performance point of view since it doesn't involve instruction decoding when not using x2APIC mode.
Reported and Tested by: avg Sponsored by: Citrix Systems R&D b2802351 Tue Nov 12 10:31:28 GMT 2019 Roger Pau Monné <royger@FreeBSD.org> xen: fix dispatching of NMIs
Currently NMIs are sent over event channels, but that defeats the purpose of NMIs since event channels can be masked. Fix this by issuing NMIs using a hypercall, which injects a NMI (vector #2) to the desired vCPU.
Note that NMIs could also be triggered using the emulated local APIC, but using a hypercall is better from a performance point of view since it doesn't involve instruction decoding when not using x2APIC mode.
Reported and Tested by: avg Sponsored by: Citrix Systems R&D b2802351 Tue Nov 12 10:31:28 GMT 2019 Roger Pau Monné <royger@FreeBSD.org> xen: fix dispatching of NMIs
Currently NMIs are sent over event channels, but that defeats the purpose of NMIs since event channels can be masked. Fix this by issuing NMIs using a hypercall, which injects a NMI (vector #2) to the desired vCPU.
Note that NMIs could also be triggered using the emulated local APIC, but using a hypercall is better from a performance point of view since it doesn't involve instruction decoding when not using x2APIC mode.
Reported and Tested by: avg Sponsored by: Citrix Systems R&D b2802351 Tue Nov 12 10:31:28 GMT 2019 Roger Pau Monné <royger@FreeBSD.org> xen: fix dispatching of NMIs
Currently NMIs are sent over event channels, but that defeats the purpose of NMIs since event channels can be masked. Fix this by issuing NMIs using a hypercall, which injects a NMI (vector #2) to the desired vCPU.
Note that NMIs could also be triggered using the emulated local APIC, but using a hypercall is better from a performance point of view since it doesn't involve instruction decoding when not using x2APIC mode.
Reported and Tested by: avg Sponsored by: Citrix Systems R&D b2802351 Tue Nov 12 10:31:28 GMT 2019 Roger Pau Monné <royger@FreeBSD.org> xen: fix dispatching of NMIs
Currently NMIs are sent over event channels, but that defeats the purpose of NMIs since event channels can be masked. Fix this by issuing NMIs using a hypercall, which injects a NMI (vector #2) to the desired vCPU.
Note that NMIs could also be triggered using the emulated local APIC, but using a hypercall is better from a performance point of view since it doesn't involve instruction decoding when not using x2APIC mode.
Reported and Tested by: avg Sponsored by: Citrix Systems R&D b2802351 Tue Nov 12 10:31:28 GMT 2019 Roger Pau Monné <royger@FreeBSD.org> xen: fix dispatching of NMIs
Currently NMIs are sent over event channels, but that defeats the purpose of NMIs since event channels can be masked. Fix this by issuing NMIs using a hypercall, which injects a NMI (vector #2) to the desired vCPU.
Note that NMIs could also be triggered using the emulated local APIC, but using a hypercall is better from a performance point of view since it doesn't involve instruction decoding when not using x2APIC mode.
Reported and Tested by: avg Sponsored by: Citrix Systems R&D b2802351 Tue Nov 12 10:31:28 GMT 2019 Roger Pau Monné <royger@FreeBSD.org> xen: fix dispatching of NMIs
Currently NMIs are sent over event channels, but that defeats the purpose of NMIs since event channels can be masked. Fix this by issuing NMIs using a hypercall, which injects a NMI (vector #2) to the desired vCPU.
Note that NMIs could also be triggered using the emulated local APIC, but using a hypercall is better from a performance point of view since it doesn't involve instruction decoding when not using x2APIC mode.
Reported and Tested by: avg Sponsored by: Citrix Systems R&D
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