On 10/29/18 at 03:59pm, lijiang wrote:
> diff --git a/arch/x86/kernel/machine_kexec_64.c b/arch/x86/kernel/machine_kexec_64.c
> index 4c8acdfdc5a7..de363796ed20 100644
> --- a/arch/x86/kernel/machine_kexec_64.c
> +++ b/arch/x86/kernel/machine_kexec_64.c
> @@ -29,6 +29,9 @@
> #include <asm/setup.h>
> #include <asm/set_memory.h>
>
> +u64 sme_mask;
> +EXPORT_SYMBOL(sme_mask);
Wondering why it is global. Who else will use it?
> +
> #ifdef CONFIG_KEXEC_FILE
> const struct kexec_file_ops * const kexec_file_loaders[] = {
> &kexec_bzImage64_ops,
> @@ -357,6 +360,9 @@ void arch_crash_save_vmcoreinfo(void)
> vmcoreinfo_append_str("NUMBER(pgtable_l5_enabled)=%d\n",
> pgtable_l5_enabled());
>
> + sme_mask = sme_me_mask;
> + VMCOREINFO_NUMBER(sme_mask);
> +
> #ifdef CONFIG_NUMA
> VMCOREINFO_SYMBOL(node_data);
> VMCOREINFO_LENGTH(node_data, MAX_NUMNODES);
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