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x86/reboot: Add Dell Optiplex 7450 AIO reboot quirk

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Dell Optiplex 7450 AIO works with BOOT_ACPI; however, the quirk for
"OptiPlex 745" changes its boot method to BOOT_BIOS and causes 7450 AIO
hangs when rebooting; as a result, 7450 AIO is appended to overwrite
BOOT_BIOS by BOOT_ACPI in order not to break the original 745 series

Signed-off-by: Alex Hung <alex.hung@canonical.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
This commit is contained in:
Alex Hung 2016-07-14 18:05:56 +08:00 committed by Ingo Molnar
parent f97d10454e
commit 4d581259b7
1 changed files with 21 additions and 0 deletions
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21
arch/x86/kernel/reboot.c
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@ -54,6 +54,19 @@ bool port_cf9_safe = false;
* Dell Inc. so their systems "just work". :-)
*/
/*
* Some machines require the "reboot=a" commandline options
*/
static int __init set_acpi_reboot(const struct dmi_system_id *d)
{
if (reboot_type != BOOT_ACPI) {
reboot_type = BOOT_ACPI;
pr_info("%s series board detected. Selecting %s-method for reboots.\n",
d->ident, "ACPI");
}
return 0;
}
/*
* Some machines require the "reboot=b" or "reboot=k" commandline options,
* this quirk makes that automatic.
@ -395,6 +408,14 @@ static struct dmi_system_id __initdata reboot_dmi_table[] = {
DMI_MATCH(DMI_PRODUCT_NAME, "Dell XPS710"),
},
},
{ /* Handle problems with rebooting on Dell Optiplex 7450 AIO */
.callback = set_acpi_reboot,
.ident = "Dell OptiPlex 7450 AIO",
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
DMI_MATCH(DMI_PRODUCT_NAME, "OptiPlex 7450 AIO"),
},
},
/* Hewlett-Packard */
{ /* Handle problems with rebooting on HP laptops */