arch/powerpc/platforms/pseries/kexec.c

Source file repositories/reference/linux-study-clean/arch/powerpc/platforms/pseries/kexec.c

File Facts

System
Linux kernel
Corpus path
arch/powerpc/platforms/pseries/kexec.c
Extension
.c
Size
1500 bytes
Lines
64
Domain
Architecture Layer
Bucket
arch/powerpc
Inferred role
Architecture Layer: implementation source
Status
source 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.

Dependency Surface

Detected Declarations

Annotated Snippet

if (get_lppaca()->dtl_enable_mask) {
			ret = unregister_dtl(hwcpu);
			if (ret) {
				pr_err("WARNING: DTL deregistration for cpu "
				       "%d (hw %d) failed with %d\n",
				       cpu, hwcpu, ret);
			}
		}

		ret = unregister_slb_shadow(hwcpu);
		if (ret) {
			pr_err("WARNING: SLB shadow buffer deregistration "
			       "for cpu %d (hw %d) failed with %d\n",
			       cpu, hwcpu, ret);
		}

		ret = unregister_vpa(hwcpu);
		if (ret) {
			pr_err("WARNING: VPA deregistration for cpu %d "
			       "(hw %d) failed with %d\n", cpu, hwcpu, ret);
		}
	}

	if (xive_enabled()) {
		xive_teardown_cpu();

		if (!secondary)
			xive_shutdown();
	} else
		xics_kexec_teardown_cpu(secondary);
}

Annotation

Implementation Notes