Add CONFIG_KVM_IOAPIC to allow disabling support for KVM's I/O APIC (and PIC
and PIT) emulation, and delete irq_comm.c by moving its contents to other
files.
Vitaly and Kai, I didn't apply your review/ack to the Hyper-V patch, as I ended
up keeping the helper as kvm_hv_synic_set_irq() to fix the tracepoint
inconsistency and the bad changelog.
v2:
- Keep kvm_hv_synic_set_irq() instead of renaming it kvm_hv_set_sint() to
stay consistent with kvm_pic_set_irq() and kvm_ioapic_set_irq(), and with
its tracepoint. [Vitaly, Kai]
- Keep kvm_setup_default_irq_routine() instead of folding it into I/O APIC
allocation, but rename it to kvm_setup_default_ioapic_and_pic_routing().
[Paolo].
- Move a bit more code out of x86.c (this time into i8254.c).
- Guard more code with CONFIG_KVM_IOAPIC (e.g. struct kvm_pit).
- Fix a changelog typo. [Kai]
- Collect Kai's Acked-by. [Kai]
v1: https://lore.kernel.org/all/20250519232808.2745331-1-seanjc@google.com
Sean Christopherson (18):
KVM: x86: Trigger I/O APIC route rescan in
kvm_arch_irq_routing_update()
KVM: x86: Drop superfluous kvm_set_pic_irq() => kvm_pic_set_irq()
wrapper
KVM: x86: Drop superfluous kvm_set_ioapic_irq() =>
kvm_ioapic_set_irq() wrapper
KVM: x86: Drop superfluous kvm_hv_set_sint() => kvm_hv_synic_set_irq()
wrapper
KVM: x86: Move PIT ioctl helpers to i8254.c
KVM: x86: Move KVM_{GET,SET}_IRQCHIP ioctl helpers to irq.c
KVM: x86: Rename irqchip_kernel() to irqchip_full()
KVM: x86: Move kvm_setup_default_irq_routing() into irq.c
KVM: x86: Move kvm_{request,free}_irq_source_id() to i8254.c (PIT)
KVM: x86: Hardcode the PIT IRQ source ID to '2'
KVM: x86: Don't clear PIT's IRQ line status when destroying PIT
KVM: x86: Explicitly check for in-kernel PIC when getting ExtINT
KVM: Move x86-only tracepoints to x86's trace.h
KVM: x86: Add CONFIG_KVM_IOAPIC to allow disabling in-kernel I/O APIC
KVM: Squash two CONFIG_HAVE_KVM_IRQCHIP #ifdefs into one
KVM: selftests: Fall back to split IRQ chip if full in-kernel chip is
unsupported
KVM: x86: Move IRQ mask notifier infrastructure to I/O APIC emulation
KVM: x86: Fold irq_comm.c into irq.c
arch/x86/include/asm/kvm_host.h | 22 +-
arch/x86/kvm/Kconfig | 10 +
arch/x86/kvm/Makefile | 7 +-
arch/x86/kvm/hyperv.c | 10 +-
arch/x86/kvm/hyperv.h | 3 +-
arch/x86/kvm/i8254.c | 90 +++-
arch/x86/kvm/i8254.h | 17 +-
arch/x86/kvm/i8259.c | 17 +-
arch/x86/kvm/ioapic.c | 55 ++-
arch/x86/kvm/ioapic.h | 24 +-
arch/x86/kvm/irq.c | 427 ++++++++++++++++++-
arch/x86/kvm/irq.h | 35 +-
arch/x86/kvm/irq_comm.c | 469 ---------------------
arch/x86/kvm/lapic.c | 7 +-
arch/x86/kvm/trace.h | 80 ++++
arch/x86/kvm/x86.c | 164 +------
include/linux/kvm_host.h | 9 +-
include/trace/events/kvm.h | 84 +---
tools/testing/selftests/kvm/lib/kvm_util.c | 13 +-
virt/kvm/irqchip.c | 2 -
20 files changed, 746 insertions(+), 799 deletions(-)
delete mode 100644 arch/x86/kvm/irq_comm.c
base-commit: 61374cc145f4a56377eaf87c7409a97ec7a34041
--
2.50.0.rc1.591.g9c95f17f64-goog