arch/mips/kvm/mips.c

File Facts

System

Linux kernel

Corpus path

arch/mips/kvm/mips.c

Extension

.c

Size

40912 bytes

Lines

1643

Domain

Architecture Layer

Bucket

arch/mips

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.
• Touches user memory; correctness depends on fault-safe copying and privilege boundary handling.
• 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/bitops.h
• linux/errno.h
• linux/err.h
• linux/kdebug.h
• linux/module.h
• linux/uaccess.h
• linux/vmalloc.h
• linux/sched/signal.h
• linux/fs.h
• linux/memblock.h
• linux/pgtable.h
• asm/fpu.h
• asm/page.h
• asm/cacheflush.h
• asm/mmu_context.h
• asm/pgalloc.h
• linux/kvm_host.h
• interrupt.h
• trace.h

Detected Declarations

• function kvm_guest_mode_change_trace_reg
• function kvm_guest_mode_change_trace_unreg
• function kvm_arch_vcpu_runnable
• function kvm_arch_vcpu_in_kernel
• function kvm_arch_vcpu_should_kick
• function kvm_arch_enable_virtualization_cpu
• function kvm_arch_disable_virtualization_cpu
• function kvm_arch_init_vm
• function kvm_mips_free_gpa_pt
• function kvm_arch_destroy_vm
• function kvm_arch_dev_ioctl
• function kvm_arch_flush_shadow_all
• function kvm_arch_flush_shadow_memslot
• function kvm_arch_prepare_memory_region
• function kvm_arch_commit_memory_region
• function kvm_arch_flush_shadow_memslot
• function dump_handler
• function kvm_mips_comparecount_wakeup
• function kvm_arch_vcpu_precreate
• function kvm_arch_vcpu_create
• function kvm_arch_vcpu_destroy
• function kvm_arch_vcpu_ioctl_set_guest_debug
• function kvm_mips_vcpu_enter_exit
• function kvm_arch_vcpu_ioctl_run
• function kvm_vcpu_ioctl_interrupt
• function kvm_arch_vcpu_ioctl_get_mpstate
• function kvm_arch_vcpu_ioctl_set_mpstate
• function kvm_mips_num_regs
• function kvm_mips_copy_reg_indices
• function kvm_mips_get_reg
• function kvm_mips_set_reg
• function kvm_vcpu_ioctl_enable_cap
• function kvm_arch_vcpu_unlocked_ioctl
• function kvm_arch_vcpu_ioctl
• function kvm_arch_sync_dirty_log
• function kvm_arch_vm_ioctl
• function kvm_arch_vcpu_ioctl_get_sregs
• function kvm_arch_vcpu_ioctl_set_sregs
• function kvm_arch_vcpu_postcreate
• function kvm_arch_vcpu_ioctl_set_fpu
• function kvm_arch_vcpu_fault
• function kvm_vm_ioctl_check_extension
• function kvm_cpu_has_pending_timer
• function kvm_arch_vcpu_dump_regs
• function kvm_arch_vcpu_ioctl_set_regs
• function kvm_arch_vcpu_ioctl_get_regs
• function kvm_arch_vcpu_ioctl_translate
• function kvm_mips_set_c0_status

Annotated Snippet

module_init(kvm_mips_init);
module_exit(kvm_mips_exit);

EXPORT_TRACEPOINT_SYMBOL(kvm_exit);

Annotation

• Immediate include surface: `linux/bitops.h`, `linux/errno.h`, `linux/err.h`, `linux/kdebug.h`, `linux/module.h`, `linux/uaccess.h`, `linux/vmalloc.h`, `linux/sched/signal.h`.
• Detected declarations: `function kvm_guest_mode_change_trace_reg`, `function kvm_guest_mode_change_trace_unreg`, `function kvm_arch_vcpu_runnable`, `function kvm_arch_vcpu_in_kernel`, `function kvm_arch_vcpu_should_kick`, `function kvm_arch_enable_virtualization_cpu`, `function kvm_arch_disable_virtualization_cpu`, `function kvm_arch_init_vm`, `function kvm_mips_free_gpa_pt`, `function kvm_arch_destroy_vm`.
• Atlas domain: Architecture Layer / arch/mips.
• Implementation status: integration implementation candidate.
• This snippet crosses the user/kernel memory boundary; validate fault handling and access checks before translating the pattern.
• 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.