Re: [PATCH] kdump, vmcoreinfo: Export sme_me_mask value to vmcoreinfo

From: Baoquan He
Date: Mon Oct 29 2018 - 07:44:24 EST


On 10/29/18 at 06:12pm, lijiang wrote:
> diff --git a/arch/x86/kernel/machine_kexec_64.c b/arch/x86/kernel/machine_kexec_64.c
> index 4c8acdfdc5a7..3cc975e7ff8f 100644
> --- a/arch/x86/kernel/machine_kexec_64.c
> +++ b/arch/x86/kernel/machine_kexec_64.c
> @@ -352,11 +352,16 @@ void machine_kexec(struct kimage *image)
>
void arch_crash_save_vmcoreinfo(void)
{
+ u64 sme_mask = sme_me_mask;
+

This may looks better.

VMCOREINFO_NUMBER(phys_base);
VMCOREINFO_SYMBOL(init_top_pgt);
vmcoreinfo_append_str("NUMBER(pgtable_l5_enabled)=%d\n",
pgtable_l5_enabled());

+ VMCOREINFO_NUMBER(sme_mask);
+
#ifdef CONFIG_NUMA
VMCOREINFO_SYMBOL(node_data);
VMCOREINFO_LENGTH(node_data, MAX_NUMNODES);