Messages in this thread Patch in this message | | | From | Lianbo Jiang <> | Subject | [PATCH] kdump, vmcoreinfo: Export sme_me_mask value to vmcoreinfo | Date | Fri, 26 Oct 2018 17:36:30 +0800 |
| |
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
| |