From: Eric W. Biederman --- 25-akpm/arch/x86_64/kernel/i8259.c | 14 ++++++++++++++ 1 files changed, 14 insertions(+) diff -puN arch/x86_64/kernel/i8259.c~kexec-i8259-shutdown-x86_64 arch/x86_64/kernel/i8259.c --- 25/arch/x86_64/kernel/i8259.c~kexec-i8259-shutdown-x86_64 2004-08-22 21:40:43.048858832 -0700 +++ 25-akpm/arch/x86_64/kernel/i8259.c 2004-08-22 21:40:43.051858376 -0700 @@ -416,10 +416,24 @@ static int i8259A_suspend(struct sys_dev return 0; } + + +static int i8259A_shutdown(struct sys_device *dev) +{ + /* Put the i8259A into a quiescent state that + * the kernel initialization code can get it + * out of. + */ + outb(0xff, 0x21); /* mask all of 8259A-1 */ + outb(0xff, 0xA1); /* mask all of 8259A-1 */ + return 0; +} + static struct sysdev_class i8259_sysdev_class = { set_kset_name("i8259"), .suspend = i8259A_suspend, .resume = i8259A_resume, + .shutdown = i8259A_shutdown, }; static struct sys_device device_i8259A = { _