Messages in this thread | | | Date | Wed, 2 Jun 2010 17:18:19 -0600 | Subject | Re: [PATCH]X86:reboot.c Add some dmi entries to pci_reboot_dmi_table. | From | Robert Hancock <> |
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On Wed, Jun 2, 2010 at 12:01 AM, Justin P. Mattock <justinmattock@gmail.com> wrote: >> Can you post the FACP section of the acpidump output from this machine? >> > > here you go: >
> Reset Register Supported (V2) : 1
> [074h 116 12] Reset Register : <Generic Address Structure> > [074h 116 1] Space ID : 01 (SystemIO) > [075h 117 1] Bit Width : 08 > [076h 118 1] Bit Offset : 00 > [077h 119 1] Access Width : 00 > [078h 120 8] Address : 0000000000000CF9 > > [080h 128 1] Value to cause reset : 06
Hmm, so the FADT says the reset register is listed as supported, and says writing 0x06 to 0xCF9 is supposed to do it.. That's exactly what this should do:
#include <sys/io.h>
int main() { iopl(3); outb(6, 0xcf9); return 0; }
but you said that didn't do anything.. It kind of seems like ACPI reboot is busted on this machine then, but then I wonder how Windows manages to work.. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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