linux-kernel - [PATCH 2/2] powerpc/powernv: Reboot when requested by firmware

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Message-Id: <1427681733-25488-2-git-send-email-joel@jms.id.au>
Date:	Mon, 30 Mar 2015 12:45:33 +1030
From:	Joel Stanley <joel@....id.au>
To:	linux-kernel@...r.kernel.org, linuxppc-dev@...ts.ozlabs.org
Cc:	fabf@...net.be, akpm@...ux-foundation.org,
	benh@...nel.crashing.org, mpe@...erman.id.au,
	rusty@...tcorp.com.au, jk@...abs.org
Subject: [PATCH 2/2] powerpc/powernv: Reboot when requested by firmware

Use orderly_reboot so userspace will to shut itself down via the reboot
path. This is required for graceful reboot initiated by the BMC, such
as when a user uses ipmitool to issue a 'chassis power cycle' command.

Signed-off-by: Joel Stanley <joel@....id.au>
---
 arch/powerpc/platforms/powernv/opal-power.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/arch/powerpc/platforms/powernv/opal-power.c b/arch/powerpc/platforms/powernv/opal-power.c
index 48bf5b0..ac46c2c 100644
--- a/arch/powerpc/platforms/powernv/opal-power.c
+++ b/arch/powerpc/platforms/powernv/opal-power.c
@@ -29,8 +29,9 @@ static int opal_power_control_event(struct notifier_block *nb,
 
 	switch (type) {
 	case SOFT_REBOOT:
-		/* Fall through. The service processor is responsible for
-		 * bringing the machine back up */
+		pr_info("OPAL: reboot requested\n");
+		orderly_reboot();
+		break;
 	case SOFT_OFF:
 		pr_info("OPAL: poweroff requested\n");
 		orderly_poweroff(true);
-- 
2.1.4

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