arch/powerpc/kvm/book3s_pr.c

File Facts

System

Linux kernel

Corpus path

arch/powerpc/kvm/book3s_pr.c

Extension

.c

Size

55175 bytes

Lines

2116

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/export.h
• linux/err.h
• linux/slab.h
• asm/reg.h
• asm/cputable.h
• asm/cacheflush.h
• linux/uaccess.h
• asm/interrupt.h
• asm/io.h
• asm/kvm_ppc.h
• asm/kvm_book3s.h
• asm/mmu_context.h
• asm/switch_to.h
• asm/firmware.h
• asm/setup.h
• linux/gfp.h
• linux/sched.h
• linux/vmalloc.h
• linux/highmem.h
• linux/module.h
• linux/miscdevice.h
• asm/asm-prototypes.h
• asm/tm.h
• book3s.h
• trace_pr.h

Detected Declarations

• function kvmppc_is_split_real
• function kvmppc_fixup_split_real
• function kvmppc_unfixup_split_real
• function kvmppc_inject_interrupt_pr
• function kvmppc_core_vcpu_load_pr
• function kvmppc_core_vcpu_put_pr
• function kvmppc_copy_to_svcpu
• function kvmppc_recalc_shadow_msr
• function kvmppc_copy_from_svcpu
• function kvmppc_save_tm_sprs
• function kvmppc_restore_tm_sprs
• function kvmppc_handle_lost_math_exts
• function kvmppc_save_tm_pr
• function kvmppc_restore_tm_pr
• function kvmppc_core_check_requests_pr
• function do_kvm_unmap_gfn
• function kvm_unmap_gfn_range_pr
• function kvm_age_gfn_pr
• function kvm_test_age_gfn_pr
• function kvmppc_set_msr_pr
• function kvmppc_set_pvr_pr
• function kvmppc_patch_dcbz
• function kvmppc_visible_gpa
• function kvmppc_handle_pagefault
• function kvmppc_giveup_ext
• function kvmppc_giveup_fac
• function kvmppc_handle_ext
• function kvmppc_handle_lost_ext
• function kvmppc_trigger_fac_interrupt
• function kvmppc_emulate_fac
• function kvmppc_handle_fac
• function kvmppc_set_fscr
• function kvmppc_setup_debug
• function kvmppc_clear_debug
• function kvmppc_exit_pr_progint
• function kvmppc_handle_exit_pr
• function kvm_arch_vcpu_ioctl_get_sregs_pr
• function kvm_arch_vcpu_ioctl_set_sregs_pr
• function kvmppc_get_one_reg_pr
• function kvmppc_set_lpcr_pr
• function kvmppc_set_one_reg_pr
• function kvmppc_core_vcpu_create_pr
• function kvmppc_core_vcpu_free_pr
• function kvmppc_vcpu_run_pr
• function Get
• function kvmppc_core_flush_memslot_pr
• function kvmppc_core_prepare_memory_region_pr
• function kvmppc_core_commit_memory_region_pr

Annotated Snippet

module_init(kvmppc_book3s_init_pr);
module_exit(kvmppc_book3s_exit_pr);

MODULE_DESCRIPTION("KVM on Book3S without using hypervisor mode");
MODULE_LICENSE("GPL");
MODULE_ALIAS_MISCDEV(KVM_MINOR);
MODULE_ALIAS("devname:kvm");
#endif

Annotation

• Immediate include surface: `linux/kvm_host.h`, `linux/export.h`, `linux/err.h`, `linux/slab.h`, `asm/reg.h`, `asm/cputable.h`, `asm/cacheflush.h`, `linux/uaccess.h`.
• Detected declarations: `function kvmppc_is_split_real`, `function kvmppc_fixup_split_real`, `function kvmppc_unfixup_split_real`, `function kvmppc_inject_interrupt_pr`, `function kvmppc_core_vcpu_load_pr`, `function kvmppc_core_vcpu_put_pr`, `function kvmppc_copy_to_svcpu`, `function kvmppc_recalc_shadow_msr`, `function kvmppc_copy_from_svcpu`, `function kvmppc_save_tm_sprs`.
• 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.