[PATCH] kdump, vmcoreinfo: Export sme_me_mask value to vmcoreinfo
bp at alien8.de
Fri Oct 26 02:43:21 PDT 2018
On October 26, 2018 10:36:30 AM GMT+01:00, Lianbo Jiang <lijiang at redhat.com> wrote:
>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 at 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
>index 4c8acdfdc5a7..dcfdb64d1097 100644
>@@ -357,6 +357,8 @@ void arch_crash_save_vmcoreinfo(void)
No we're not going to expose a kernel-internal mask to userspace.
If at all needed, add functions to kexec which figure out whether we are encrypted or not and export that result as a kexec variable.
Sent from a small device: formatting sux and brevity is inevitable.
More information about the kexec