arch/powerpc/kvm/book3s.c

File Facts

System

Linux kernel

Corpus path

arch/powerpc/kvm/book3s.c

Extension

.c

Size

28954 bytes

Lines

1106

Domain

Architecture Layer

Bucket

arch/powerpc

Inferred role

Architecture Layer: exported/initcall integration point

Status

integration implementation candidate

Why This File Exists

CPU and platform-specific kernel glue: boot entry, traps, syscall entry, interrupts, page tables, context switch, and low-level barriers.

• CPU and platform-specific kernel glue: boot entry, traps, syscall entry, interrupts, page tables, context switch, and low-level barriers.
• Exports symbols or registers init work; inspect boot/module ordering and who consumes the exported contract.
• Uses kernel synchronization; read lock ordering, sleepability, and interrupt context assumptions before translating.
• Allocates kernel memory; connect allocation flags and lifetime to context constraints.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• linux/kvm_host.h
• linux/err.h
• linux/export.h
• linux/slab.h
• linux/module.h
• linux/miscdevice.h
• linux/gfp.h
• linux/sched.h
• linux/vmalloc.h
• linux/highmem.h
• asm/reg.h
• asm/cputable.h
• asm/cacheflush.h
• linux/uaccess.h
• asm/io.h
• asm/kvm_ppc.h
• asm/kvm_book3s.h
• asm/mmu_context.h
• asm/page.h
• asm/xive.h
• book3s.h
• trace.h

Detected Declarations

• function kvmppc_update_int_pending
• function kvmppc_critical_section
• function kvmppc_inject_interrupt
• function kvmppc_book3s_vec2irqprio
• function kvmppc_book3s_dequeue_irqprio
• function kvmppc_book3s_queue_irqprio
• function kvmppc_core_queue_machine_check
• function kvmppc_core_queue_syscall
• function kvmppc_core_queue_program
• function kvmppc_core_queue_fpunavail
• function kvmppc_core_queue_vec_unavail
• function kvmppc_core_queue_vsx_unavail
• function kvmppc_core_queue_dec
• function kvmppc_core_pending_dec
• function kvmppc_core_dequeue_dec
• function kvmppc_core_queue_external
• function kvmppc_core_dequeue_external
• function kvmppc_core_queue_data_storage
• function kvmppc_core_queue_inst_storage
• function kvmppc_book3s_irqprio_deliver
• function clear_irqprio
• function KVM_INTERRUPT_SET
• function kvmppc_core_prepare_to_enter
• function kvmppc_gpa_to_pfn
• function kvmppc_xlate
• function kvmppc_load_last_inst
• function kvmppc_subarch_vcpu_init
• function kvmppc_subarch_vcpu_uninit
• function kvm_arch_vcpu_ioctl_set_sregs
• function kvm_arch_vcpu_ioctl_get_regs
• function kvm_arch_vcpu_ioctl_set_regs
• function kvm_arch_vcpu_ioctl_get_fpu
• function kvm_arch_vcpu_ioctl_set_fpu
• function kvmppc_get_one_reg
• function kvmppc_set_one_reg
• function kvmppc_core_vcpu_load
• function kvmppc_core_vcpu_put
• function kvmppc_set_msr
• function kvmppc_vcpu_run
• function kvm_arch_vcpu_ioctl_translate
• function kvm_arch_vcpu_ioctl_set_guest_debug
• function kvmppc_decrementer_func
• function kvmppc_core_vcpu_create
• function kvmppc_core_vcpu_free
• function kvmppc_core_check_requests
• function kvm_arch_sync_dirty_log
• function kvmppc_core_free_memslot
• function kvmppc_core_flush_memslot

Annotated Snippet

module_init(kvmppc_book3s_init);
module_exit(kvmppc_book3s_exit);

/* On 32bit this is our one and only kernel module */
#ifdef CONFIG_KVM_BOOK3S_32_HANDLER
MODULE_ALIAS_MISCDEV(KVM_MINOR);
MODULE_ALIAS("devname:kvm");
#endif

Annotation

• Immediate include surface: `linux/kvm_host.h`, `linux/err.h`, `linux/export.h`, `linux/slab.h`, `linux/module.h`, `linux/miscdevice.h`, `linux/gfp.h`, `linux/sched.h`.
• Detected declarations: `function kvmppc_update_int_pending`, `function kvmppc_critical_section`, `function kvmppc_inject_interrupt`, `function kvmppc_book3s_vec2irqprio`, `function kvmppc_book3s_dequeue_irqprio`, `function kvmppc_book3s_queue_irqprio`, `function kvmppc_core_queue_machine_check`, `function kvmppc_core_queue_syscall`, `function kvmppc_core_queue_program`, `function kvmppc_core_queue_fpunavail`.
• Atlas domain: Architecture Layer / arch/powerpc.
• Implementation status: integration implementation candidate.
• Synchronization appears in or near this file; preserve lock ordering, sleepability, and interrupt-context constraints.

Implementation Notes

• This generated page is the file-by-file coverage layer; curated subsystem chapters should link here when they synthesize a multi-file control flow.
• Core OS pages should be promoted from atlas-only to deep-reviewed when they explain data structures, invariants, locking, lifecycle, and C implementation snippets.
• Driver-family pages are intentionally pattern-oriented unless they are part of the selected PCIe/NVMe representative device path.