arch/x86/kvm/svm/svm.c

File Facts

System

Linux kernel

Corpus path

arch/x86/kvm/svm/svm.c

Extension

.c

Size

168259 bytes

Lines

5822

Domain

Architecture Layer

Bucket

arch/x86

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
• irq.h
• mmu.h
• regs.h
• x86.h
• smm.h
• cpuid.h
• pmu.h
• linux/module.h
• linux/mod_devicetable.h
• linux/kernel.h
• linux/vmalloc.h
• linux/highmem.h
• linux/amd-iommu.h
• linux/sched.h
• linux/trace_events.h
• linux/slab.h
• linux/hashtable.h
• linux/objtool.h
• linux/psp-sev.h
• linux/file.h
• linux/pagemap.h
• linux/swap.h
• linux/rwsem.h
• linux/cc_platform.h
• linux/smp.h
• linux/string_choices.h
• linux/mutex.h
• asm/apic.h
• asm/msr.h
• asm/perf_event.h
• asm/tlbflush.h

Detected Declarations

• function get_npt_level
• function svm_set_efer
• function svm_get_interrupt_shadow
• function svm_set_interrupt_shadow
• function __svm_skip_emulated_instruction
• function svm_skip_emulated_instruction
• function svm_update_soft_interrupt_rip
• function svm_inject_exception
• function svm_init_erratum_383
• function svm_init_osvw
• function svm_init_os_visible_workarounds
• function __kvm_is_svm_supported
• function kvm_is_svm_supported
• function svm_check_processor_compat
• function __svm_write_tsc_multiplier
• function svm_emergency_disable_virtualization_cpu
• function svm_disable_virtualization_cpu
• function svm_enable_virtualization_cpu
• function svm_cpu_uninit
• function svm_cpu_init
• function set_dr_intercepts
• function clr_dr_intercepts
• function msr_write_intercepted
• function svm_set_intercept_for_msr
• function svm_recalc_lbr_msr_intercepts
• function svm_vcpu_free_msrpm
• function svm_recalc_pmu_msr_intercepts
• function svm_recalc_msr_intercepts
• function __svm_enable_lbrv
• function svm_enable_lbrv
• function __svm_disable_lbrv
• function svm_update_lbrv
• function disable_nmi_singlestep
• function grow_ple_window
• function shrink_ple_window
• function svm_hardware_unsetup
• function init_seg
• function init_sys_seg
• function svm_get_l2_tsc_offset
• function svm_get_l2_tsc_multiplier
• function svm_write_tsc_offset
• function svm_write_tsc_multiplier
• function svm_has_pending_gif_event
• function svm_recalc_instruction_intercepts
• function cleared
• function svm_recalc_intercepts
• function init_vmcb
• function __svm_vcpu_reset

Annotated Snippet

module_init(svm_init)
module_exit(svm_exit)

Annotation

• Immediate include surface: `linux/kvm_host.h`, `irq.h`, `mmu.h`, `regs.h`, `x86.h`, `smm.h`, `cpuid.h`, `pmu.h`.
• Detected declarations: `function get_npt_level`, `function svm_set_efer`, `function svm_get_interrupt_shadow`, `function svm_set_interrupt_shadow`, `function __svm_skip_emulated_instruction`, `function svm_skip_emulated_instruction`, `function svm_update_soft_interrupt_rip`, `function svm_inject_exception`, `function svm_init_erratum_383`, `function svm_init_osvw`.
• Atlas domain: Architecture Layer / arch/x86.
• 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.