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-rw-r--r--arch/powerpc/include/asm/drmem.h1
-rw-r--r--arch/powerpc/kernel/prom.c9
2 files changed, 8 insertions, 2 deletions
diff --git a/arch/powerpc/include/asm/drmem.h b/arch/powerpc/include/asm/drmem.h
index 28c3d936fdf3..414d209f45bb 100644
--- a/arch/powerpc/include/asm/drmem.h
+++ b/arch/powerpc/include/asm/drmem.h
@@ -65,6 +65,7 @@ struct of_drconf_cell_v2 {
#define DRCONF_MEM_ASSIGNED 0x00000008
#define DRCONF_MEM_AI_INVALID 0x00000040
#define DRCONF_MEM_RESERVED 0x00000080
+#define DRCONF_MEM_HOTREMOVABLE 0x00000100
static inline u32 drmem_lmb_size(void)
{
diff --git a/arch/powerpc/kernel/prom.c b/arch/powerpc/kernel/prom.c
index 1dcf0e214a22..9a651366d385 100644
--- a/arch/powerpc/kernel/prom.c
+++ b/arch/powerpc/kernel/prom.c
@@ -515,9 +515,14 @@ static void __init early_init_drmem_lmb(struct drmem_lmb *lmb,
size = 0x80000000ul - base;
}
+ if (!validate_mem_limit(base, &size))
+ continue;
+
DBG("Adding: %llx -> %llx\n", base, size);
- if (validate_mem_limit(base, &size))
- memblock_add(base, size);
+ memblock_add(base, size);
+
+ if (lmb->flags & DRCONF_MEM_HOTREMOVABLE)
+ memblock_mark_hotplug(base, size);
} while (--rngs);
}
#endif /* CONFIG_PPC_PSERIES */