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The KVM in-kernel APIC model will reuse parts of the user space model
while providing the same frontend view to guest and most management
interfaces.
Factor out an APIC base class to encapsulate those parts that will be
shared by user space and KVM model. This class offers callback hooks for
init, base/tpr setting, and the external NMI delivery that will be
set via APICCommonInfo structure and implemented specifically in the
subclasses.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
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The in-kernel i8259 and IOAPIC backends for KVM will need this, so
encapsulate the shared bits.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
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On real hardware, NMI button events are injected via the LINT1 line of
the APICs. E.g. kdump expect this wiring and gets upset if the per-APIC
LINT1 mask is not respected, i.e. if NMIs are injected to VCPUs that
should not receive them. Change the APIC emulation code to reflect this.
Based on qemu-kvm patch by Lai Jiangshan.
CC: Lai Jiangshan <laijs@cn.fujitsu.com>
Reported-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
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Polarity of external interrupts needs to be handled in the IOAPIC.
Passing it to the APIC is pointless. So remove all these arguments.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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Make APICState completely private to apic.c by using DeviceState
in external APIs.
Move apic_init() to pc.c.
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
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Convert to qdev.
Use an opaque CPUState pointer because of missing VMState
implementation for CPUState.
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
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Move the actual CPUState contents handling to cpu.h and cpuid.c.
Handle CPU reset and set env->halted in pc.c.
Add a function to get the local APIC state of the current
CPU for the MMIO.
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
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Pass only APICState from pc.c.
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
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Convert to qdev.
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
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There's no need to use ioapic_set_irq() outside of ioapic.c, so
make it static.
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
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x86 definitions (especially CPUState uses) prevent many files from
being compiled within libhw.
Move x86 specific declarations (APIC stuff) to a separate file.
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
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