Commit
2965faa5e03d ("kexec: split kexec_load syscall from kexec core
code") introduced CONFIG_KEXEC_CORE so that CONFIG_KEXEC means whether
the kexec_load system call should be compiled-in and CONFIG_KEXEC_FILE
means whether the kexec_file_load system call should be compiled-in.
These options can be set independently from each other.
Since until now powerpc only supported kexec_load, CONFIG_KEXEC and
CONFIG_KEXEC_CORE were synonyms. That is not the case anymore, so we
need to make a distinction. Almost all places where CONFIG_KEXEC was
being used should be using CONFIG_KEXEC_CORE instead, since
kexec_file_load also needs that code compiled in.
Signed-off-by: Thiago Jung Bauermann <bauerman@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
config FA_DUMP
bool "Firmware-assisted dump"
- depends on PPC64 && PPC_RTAS && CRASH_DUMP && KEXEC
+ depends on PPC64 && PPC_RTAS && CRASH_DUMP && KEXEC_CORE
help
A robust mechanism to get reliable kernel crash dump with
assistance from firmware. This approach does not use kexec,
extern struct dentry *powerpc_debugfs_root;
-#if defined(CONFIG_DEBUGGER) || defined(CONFIG_KEXEC)
+#if defined(CONFIG_DEBUGGER) || defined(CONFIG_KEXEC_CORE)
extern int (*__debugger)(struct pt_regs *regs);
extern int (*__debugger_ipi)(struct pt_regs *regs);
typedef void (*crash_shutdown_t)(void);
-#ifdef CONFIG_KEXEC
+#ifdef CONFIG_KEXEC_CORE
/*
* This function is responsible for capturing register states if coming
return crashing_cpu >= 0;
}
-#else /* !CONFIG_KEXEC */
+#else /* !CONFIG_KEXEC_CORE */
static inline void crash_kexec_secondary(struct pt_regs *regs) { }
static inline int overlaps_crashkernel(unsigned long start, unsigned long size)
return false;
}
-#endif /* CONFIG_KEXEC */
+#endif /* CONFIG_KEXEC_CORE */
#endif /* ! __ASSEMBLY__ */
#endif /* __KERNEL__ */
#endif /* _ASM_POWERPC_KEXEC_H */
*/
void (*machine_shutdown)(void);
-#ifdef CONFIG_KEXEC
+#ifdef CONFIG_KEXEC_CORE
void (*kexec_cpu_down)(int crash_shutdown, int secondary);
/* Called to do what every setup is needed on image and the
* no return.
*/
void (*machine_kexec)(struct kimage *image);
-#endif /* CONFIG_KEXEC */
+#endif /* CONFIG_KEXEC_CORE */
#ifdef CONFIG_SUSPEND
/* These are called to disable and enable, respectively, IRQs when
#endif /* !CONFIG_SMP */
#endif /* !CONFIG_PPC64 */
-#if defined(CONFIG_PPC64) && (defined(CONFIG_SMP) || defined(CONFIG_KEXEC))
+#if defined(CONFIG_PPC64) && (defined(CONFIG_SMP) || defined(CONFIG_KEXEC_CORE))
extern void smp_release_cpus(void);
#else
static inline void smp_release_cpus(void) { };
obj-$(CONFIG_PCI) += pci_$(BITS).o $(pci64-y) \
pci-common.o pci_of_scan.o
obj-$(CONFIG_PCI_MSI) += msi.o
-obj-$(CONFIG_KEXEC) += machine_kexec.o crash.o \
+obj-$(CONFIG_KEXEC_CORE) += machine_kexec.o crash.o \
machine_kexec_$(BITS).o
obj-$(CONFIG_AUDIT) += audit.o
obj64-$(CONFIG_AUDIT) += compat_audit.o
obj-$(CONFIG_PPC64) += $(obj64-y)
obj-$(CONFIG_PPC32) += $(obj32-y)
-ifneq ($(CONFIG_XMON)$(CONFIG_KEXEC),)
+ifneq ($(CONFIG_XMON)$(CONFIG_KEXEC_CORE),)
obj-y += ppc_save_regs.o
endif
cmpdi 0,r12,0
beq 100b
-#if defined(CONFIG_SMP) || defined(CONFIG_KEXEC)
+#if defined(CONFIG_SMP) || defined(CONFIG_KEXEC_CORE)
#ifdef CONFIG_PPC_BOOK3E
tovirt(r12,r12)
#endif
_GLOBAL(__main)
blr
-#ifdef CONFIG_KEXEC
+#ifdef CONFIG_KEXEC_CORE
/*
* Must be relocatable PIC code callable as a C function.
*/
addi r5,r5,kexec_flag-1b
99: HMT_LOW
-#ifdef CONFIG_KEXEC /* use no memory without kexec */
+#ifdef CONFIG_KEXEC_CORE /* use no memory without kexec */
lwz r4,0(r5)
cmpwi 0,r4,0
beq 99b
.long 0
-#ifdef CONFIG_KEXEC
+#ifdef CONFIG_KEXEC_CORE
#ifdef CONFIG_PPC_BOOK3E
/*
* BOOK3E has no real MMU mode, so we have to setup the initial TLB
mtlr 4
li r5,0
blr /* image->start(physid, image->start, 0); */
-#endif /* CONFIG_KEXEC */
+#endif /* CONFIG_KEXEC_CORE */
tce_alloc_end = *lprop;
#endif
-#ifdef CONFIG_KEXEC
+#ifdef CONFIG_KEXEC_CORE
lprop = of_get_flat_dt_prop(node, "linux,crashkernel-base", NULL);
if (lprop)
crashk_res.start = *lprop;
#endif /* CONFIG_SMP */
-#if defined(CONFIG_SMP) || defined(CONFIG_KEXEC)
+#if defined(CONFIG_SMP) || defined(CONFIG_KEXEC_CORE)
static bool use_spinloop(void)
{
if (!IS_ENABLED(CONFIG_PPC_BOOK3E))
DBG(" <- smp_release_cpus()\n");
}
-#endif /* CONFIG_SMP || CONFIG_KEXEC */
+#endif /* CONFIG_SMP || CONFIG_KEXEC_CORE */
/*
* Initialize some remaining members of the ppc64_caches and systemcfg
if (msg < 0 || msg > PPC_MSG_DEBUGGER_BREAK) {
return -EINVAL;
}
-#if !defined(CONFIG_DEBUGGER) && !defined(CONFIG_KEXEC)
+#if !defined(CONFIG_DEBUGGER) && !defined(CONFIG_KEXEC_CORE)
if (msg == PPC_MSG_DEBUGGER_BREAK) {
return 1;
}
}
#endif
-#if defined(CONFIG_DEBUGGER) || defined(CONFIG_KEXEC)
+#if defined(CONFIG_DEBUGGER) || defined(CONFIG_KEXEC_CORE)
void smp_send_debugger_break(void)
{
int cpu;
}
#endif
-#ifdef CONFIG_KEXEC
+#ifdef CONFIG_KEXEC_CORE
void crash_send_ipi(void (*crash_ipi_callback)(struct pt_regs *))
{
crash_ipi_function_ptr = crash_ipi_callback;
#include <sysdev/fsl_pci.h>
#include <asm/kprobes.h>
-#if defined(CONFIG_DEBUGGER) || defined(CONFIG_KEXEC)
+#if defined(CONFIG_DEBUGGER) || defined(CONFIG_KEXEC_CORE)
int (*__debugger)(struct pt_regs *regs) __read_mostly;
int (*__debugger_ipi)(struct pt_regs *regs) __read_mostly;
int (*__debugger_bpt)(struct pt_regs *regs) __read_mostly;
*
* Likewise, problems have been seen with kexec when coreint is enabled.
*/
-#if defined(CONFIG_HOTPLUG_CPU) || defined(CONFIG_KEXEC)
+#if defined(CONFIG_HOTPLUG_CPU) || defined(CONFIG_KEXEC_CORE)
.get_irq = mpic_get_irq,
#else
.get_irq = mpic_get_coreint_irq,
.cpu_disable = generic_cpu_disable,
.cpu_die = generic_cpu_die,
#endif
-#if defined(CONFIG_KEXEC) && !defined(CONFIG_PPC64)
+#if defined(CONFIG_KEXEC_CORE) && !defined(CONFIG_PPC64)
.give_timebase = smp_generic_give_timebase,
.take_timebase = smp_generic_take_timebase,
#endif
};
-#ifdef CONFIG_KEXEC
+#ifdef CONFIG_KEXEC_CORE
#ifdef CONFIG_PPC32
atomic_t kexec_down_cpus = ATOMIC_INIT(0);
default_machine_kexec(image);
}
-#endif /* CONFIG_KEXEC */
+#endif /* CONFIG_KEXEC_CORE */
static void smp_85xx_basic_setup(int cpu_nr)
{
#endif
smp_ops = &smp_85xx_ops;
-#ifdef CONFIG_KEXEC
+#ifdef CONFIG_KEXEC_CORE
ppc_md.kexec_cpu_down = mpc85xx_smp_kexec_cpu_down;
ppc_md.machine_kexec = mpc85xx_smp_machine_kexec;
#endif
static DEVICE_ATTR(stat, 0444, spu_stat_show, NULL);
-#ifdef CONFIG_KEXEC
+#ifdef CONFIG_KEXEC_CORE
struct crash_spu_info {
struct spu *spu;
opal_shutdown();
}
-#ifdef CONFIG_KEXEC
+#ifdef CONFIG_KEXEC_CORE
static void pnv_kexec_wait_secondaries_down(void)
{
int my_cpu, i, notified = -1;
opal_reinit_cpus(OPAL_REINIT_CPUS_HILE_BE);
}
}
-#endif /* CONFIG_KEXEC */
+#endif /* CONFIG_KEXEC_CORE */
#ifdef CONFIG_MEMORY_HOTPLUG_SPARSE
static unsigned long pnv_memory_block_size(void)
.machine_shutdown = pnv_shutdown,
.power_save = NULL,
.calibrate_decr = generic_calibrate_decr,
-#ifdef CONFIG_KEXEC
+#ifdef CONFIG_KEXEC_CORE
.kexec_cpu_down = pnv_kexec_cpu_down,
#endif
#ifdef CONFIG_MEMORY_HOTPLUG_SPARSE
return 1;
}
-#if defined(CONFIG_KEXEC)
+#if defined(CONFIG_KEXEC_CORE)
static void ps3_kexec_cpu_down(int crash_shutdown, int secondary)
{
int cpu = smp_processor_id();
.progress = ps3_progress,
.restart = ps3_restart,
.halt = ps3_halt,
-#if defined(CONFIG_KEXEC)
+#if defined(CONFIG_KEXEC_CORE)
.kexec_cpu_down = ps3_kexec_cpu_down,
#endif
};
pci.o pci_dlpar.o eeh_pseries.o msi.o
obj-$(CONFIG_SMP) += smp.o
obj-$(CONFIG_SCANLOG) += scanlog.o
-obj-$(CONFIG_KEXEC) += kexec.o
+obj-$(CONFIG_KEXEC_CORE) += kexec.o
obj-$(CONFIG_PSERIES_ENERGY) += pseries_energy.o
obj-$(CONFIG_HOTPLUG_CPU) += hotplug-cpu.o
}
EXPORT_SYMBOL(pseries_disable_reloc_on_exc);
-#ifdef CONFIG_KEXEC
+#ifdef CONFIG_KEXEC_CORE
static void pSeries_machine_kexec(struct kimage *image)
{
if (firmware_has_feature(FW_FEATURE_SET_MODE))
.progress = rtas_progress,
.system_reset_exception = pSeries_system_reset_exception,
.machine_check_exception = pSeries_machine_check_exception,
-#ifdef CONFIG_KEXEC
+#ifdef CONFIG_KEXEC_CORE
.machine_kexec = pSeries_machine_kexec,
.kexec_cpu_down = pseries_kexec_cpu_down,
#endif