> -----Original Message----- > From: Andy Lutomirski [mailto:luto@xxxxxxx] > Sent: Wednesday, August 17, 2011 7:03 AM > To: x86@xxxxxxxxxx; linux-kernel@xxxxxxxxxxxxxxx > Cc: Yu, Fenghua; Matthew Garrett; Len Brown; linux- > acpi@xxxxxxxxxxxxxxx; Ingo Molnar; Andy Lutomirski > Subject: [PATCH v4 1/2] x86: Enable fast strings on Intel if BIOS > hasn't already > > Intel SDM volume 3A, 8.4.2 says: > > Software can disable fast-string operation by clearing the > fast-string-enable bit (bit 0) of IA32_MISC_ENABLE MSR. > However, Intel recomments that system software always enable > fast-string operation. > > The Intel DQ67SW board (with latest BIOS) disables fast string > operations if TXT is enabled. A Lenovo X220 disables it regardless > of TXT setting. I doubt I'm the only person with a dumb BIOS like > this. > > Signed-off-by: Andy Lutomirski <luto@xxxxxxx> Signed-off-by: Fenghua Yu <fenghua.yu@xxxxxxxxx> -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
