x86/mce: Log MCEs after a warm rest on AMD, Fam17h and later

For Fam17h, we want to report errors that persist across reboots. Error
persistence is dependent on HW and no BIOS currently fiddles with values
here. So allow reporting of errors upon boot until something goes wrong.

Logging is disabled on older families because BIOS didn't clear the MCA
banks after a cold reset.

Signed-off-by: Aravind Gopalakrishnan <[email protected]>
Signed-off-by: Yazen Ghannam <[email protected]>
Signed-off-by: Borislav Petkov <[email protected]>
Cc: Andy Lutomirski <[email protected]>
Cc: Aravind Gopalakrishnan <[email protected]>
Cc: Borislav Petkov <[email protected]>
Cc: Brian Gerst <[email protected]>
Cc: Denys Vlasenko <[email protected]>
Cc: H. Peter Anvin <[email protected]>
Cc: Linus Torvalds <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Thomas Gleixner <[email protected]>
Cc: Tony Luck <[email protected]>
Cc: linux-edac <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Ingo Molnar <[email protected]>

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