From: Lianbo Jiang <lijiang@redhat.com>
To: linux-kernel@vger.kernel.org
Cc: kexec@lists.infradead.org, tglx@linutronix.de, mingo@redhat.com,
bp@alien8.de, x86@kernel.org, bhe@redhat.com, dyoung@redhat.com
Subject: [PATCH] kdump, vmcoreinfo: Export sme_me_mask value to vmcoreinfo
Date: Fri, 26 Oct 2018 17:36:30 +0800 [thread overview]
Message-ID: <20181026093630.8520-1-lijiang@redhat.com> (raw)
For AMD machine with SME feature, makedumpfile tools need to know
whether the crash kernel was encrypted or not. So it is necessary
to write the sme_me_mask to vmcoreinfo.
Signed-off-by: Lianbo Jiang <lijiang@redhat.com>
---
arch/x86/kernel/machine_kexec_64.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/arch/x86/kernel/machine_kexec_64.c b/arch/x86/kernel/machine_kexec_64.c
index 4c8acdfdc5a7..dcfdb64d1097 100644
--- a/arch/x86/kernel/machine_kexec_64.c
+++ b/arch/x86/kernel/machine_kexec_64.c
@@ -357,6 +357,8 @@ void arch_crash_save_vmcoreinfo(void)
vmcoreinfo_append_str("NUMBER(pgtable_l5_enabled)=%d\n",
pgtable_l5_enabled());
+ VMCOREINFO_NUMBER(sme_me_mask);
+
#ifdef CONFIG_NUMA
VMCOREINFO_SYMBOL(node_data);
VMCOREINFO_LENGTH(node_data, MAX_NUMNODES);
--
2.17.1
next reply other threads:[~2018-10-26 9:37 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-10-26 9:36 Lianbo Jiang [this message]
2018-10-26 9:43 ` Boris Petkov
2018-10-26 12:32 ` lijiang
2018-10-26 16:24 ` Petr Tesarik
2018-10-26 22:25 ` Borislav Petkov
2018-10-27 2:57 ` lijiang
2018-10-27 8:13 ` Baoquan He
2018-10-27 9:10 ` Borislav Petkov
2018-10-27 9:39 ` Baoquan He
2018-10-27 10:12 ` Borislav Petkov
2018-10-27 11:08 ` Baoquan He
2018-10-27 13:17 ` Boris Petkov
2018-10-27 14:41 ` lijiang
2018-10-27 14:51 ` Borislav Petkov
2018-10-29 7:59 ` lijiang
2018-10-29 8:31 ` Baoquan He
2018-10-29 9:29 ` lijiang
2018-10-29 9:57 ` Borislav Petkov
2018-10-29 10:12 ` lijiang
2018-10-29 11:44 ` Baoquan He
2018-10-29 13:41 ` lijiang
2018-10-29 13:49 ` Borislav Petkov
2018-10-30 4:46 ` lijiang
2018-10-30 5:09 ` Dave Young
2018-10-30 9:15 ` Borislav Petkov
2018-10-30 9:23 ` Baoquan He
2018-10-31 2:26 ` lijiang
2018-10-31 2:47 ` Dave Young
2018-10-31 7:43 ` lijiang
2018-10-31 10:10 ` Borislav Petkov
2018-11-01 15:01 ` Kazuhito Hagio
2018-10-26 16:35 ` Borislav Petkov
2018-10-27 2:19 ` lijiang
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