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OpenCloudOS-Kernel/arch/x86/kvm
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David Woodhouse 8733068b9b KVM: x86/xen: Make kvm_xen_set_evtchn() reusable from other places 
Clean it up to return -errno on error consistently, while still being
compatible with the return conventions for kvm_arch_set_irq_inatomic()
and the kvm_set_irq() callback.

We use -ENOTCONN to indicate when the port is masked. No existing users
care, except that it's negative.

Also allow it to optimise the vCPU lookup. Unless we abuse the lapic
map, there is no quick lookup from APIC ID to a vCPU; the logic in
kvm_get_vcpu_by_id() will just iterate over all vCPUs till it finds
the one it wants. So do that just once and stash the result in the
struct kvm_xen_evtchn for next time.

Signed-off-by: David Woodhouse <dwmw@amazon.co.uk>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20220303154127.202856-8-dwmw2@infradead.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
 		2022-04-02 05:41:14 -04:00
..
mmu KVM: x86/mmu: do compare-and-exchange of gPTE via the user address 2022-04-02 05:37:27 -04:00
svm KVM: x86: mark synthetic SMM vmexit as SVM_EXIT_SW 2022-04-02 05:41:12 -04:00
vmx KVM: x86: Remove redundant vm_entry_controls_clearbit() call 2022-04-02 05:37:26 -04:00
Kconfig KVM: x86/mmu: Remove MMU auditing 2022-02-18 13:46:23 -05:00
Makefile KVM: Add Makefile.kvm for common files, use it for x86 2021-12-09 12:56:02 -05:00
cpuid.c KVM: x86: Fix clang -Wimplicit-fallthrough in do_host_cpuid() 2022-03-29 13:21:18 -04:00
cpuid.h kvm: x86: Add support for getting/setting expanded xstate buffer 2022-01-14 13:44:41 -05:00
debugfs.c Merge branch 'kvm-pi-raw-spinlock' into HEAD 2022-01-19 12:14:02 -05:00
emulate.c KVM: x86: Only do MSR filtering when access MSR by rdmsr/wrmsr 2022-04-02 05:34:47 -04:00
fpu.h KVM: x86: Move FPU register accessors into fpu.h 2021-06-17 13:09:24 -04:00
hyperv.c KVM: x86: Add wrappers for setting/clearing APICv inhibits 2022-04-02 05:34:44 -04:00
hyperv.h KVM: x86: Make kvm_hv_hypercall_enabled() static inline 2022-02-10 13:50:44 -05:00
i8254.c KVM: x86: Add wrappers for setting/clearing APICv inhibits 2022-04-02 05:34:44 -04:00
i8254.h
…
i8259.c KVM: x86/i8259: Remove unused "addr" of elcr_ioport_{read,write}() 2022-02-10 13:47:12 -05:00
ioapic.c KVM: x86/ioapic: Remove unused "addr" and "length" of ioapic_read_indirect() 2022-02-10 13:47:13 -05:00
ioapic.h x86/kvm: remove unused ack_notifier callbacks 2021-11-18 07:05:57 -05:00
irq.c KVM: x86/xen: Add event channel interrupt vector upcall 2021-02-04 14:19:39 +00:00
irq.h x86/kvm: remove unused ack_notifier callbacks 2021-11-18 07:05:57 -05:00
irq_comm.c KVM: x86/xen: Make kvm_xen_set_evtchn() reusable from other places 2022-04-02 05:41:14 -04:00
kvm_cache_regs.h KVM: X86: Remove kvm_register_clear_available() 2021-12-08 04:25:03 -05:00
kvm_emulate.h KVM: x86: Only do MSR filtering when access MSR by rdmsr/wrmsr 2022-04-02 05:34:47 -04:00
kvm_onhyperv.c KVM: x86: Uninline and export hv_track_root_tdp() 2022-02-10 13:47:19 -05:00
kvm_onhyperv.h KVM: x86: Uninline and export hv_track_root_tdp() 2022-02-10 13:47:19 -05:00
lapic.c KVM: x86: Avoid theoretical NULL pointer dereference in kvm_irq_delivery_to_apic_fast() 2022-03-29 13:22:01 -04:00
lapic.h KVM: x86: Make kvm_lapic_set_reg() a "private" xAPIC helper 2022-03-01 08:50:48 -05:00
mmu.h KVM: X86: Handle implicit supervisor access with SMAP 2022-04-02 05:34:43 -04:00
mtrr.c KVM: x86: Add helper to consolidate "raw" reserved GPA mask calculations 2021-02-04 09:27:30 -05:00
pmu.c KVM: x86/pmu: Fix and isolate TSX-specific performance event logic 2022-04-02 05:34:46 -04:00
pmu.h KVM: x86: Update vPMCs when retiring instructions 2022-01-07 10:44:42 -05:00
reverse_cpuid.h KVM: SEV: Mask CPUID[0x8000001F].eax according to supported features 2021-04-26 05:27:15 -04:00
trace.h KVM: x86: Trace all APICv inhibit changes and capture overall status 2022-04-02 05:34:45 -04:00
tss.h
…
x86.c KVM: x86/xen: Use gfn_to_pfn_cache for vcpu_time_info 2022-04-02 05:41:13 -04:00
x86.h KVM: x86/mmu: Split huge pages mapped by the TDP MMU during KVM_CLEAR_DIRTY_LOG 2022-02-10 13:50:43 -05:00
xen.c KVM: x86/xen: Make kvm_xen_set_evtchn() reusable from other places 2022-04-02 05:41:14 -04:00
xen.h KVM: x86/xen: Make kvm_xen_set_evtchn() reusable from other places 2022-04-02 05:41:14 -04:00