linux-kernel - Re: [PATCH] kdump, vmcoreinfo: Export sme_me

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Message-ID: <90385882-7fd1-a674-ec5a-19bd42471a5e@redhat.com>
Date:   Mon, 29 Oct 2018 21:41:26 +0800
From:   lijiang <lijiang@...hat.com>
To:     Baoquan He <bhe@...hat.com>
Cc:     Borislav Petkov <bp@...en8.de>, Petr Tesarik <ptesarik@...e.cz>,
        linux-kernel@...r.kernel.org, x86@...nel.org,
        kexec@...ts.infradead.org, mingo@...hat.com, tglx@...utronix.de,
        dyoung@...hat.com
Subject: Re: [PATCH] kdump, vmcoreinfo: Export sme_me_mask value to vmcoreinfo

在 2018年10月29日 19:44, Baoquan He 写道:
> 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.
> 

Ok, thanks for your comment.

>         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);
>