From: K. Y. Srinivasan <kys@microsoft.com>
Date: Wed, 29 Mar 2017 00:16:53 +0000 (-0700)
Subject: Drivers: hv: Issue explicit EOI when autoeoi is not enabled
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=a33fd4c27b3ad11c66bdadc5fe6075297ca87a6d;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git

Drivers: hv: Issue explicit EOI when autoeoi is not enabled

When auto EOI is not enabled; issue an explicit EOI for hyper-v
interrupts.

Fixes: 6c248aad81c8 ("Drivers: hv: Base autoeoi enablement based on hypervisor hints")

Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/arch/x86/kernel/cpu/mshyperv.c b/arch/x86/kernel/cpu/mshyperv.c
index b5375b9497b3..04cb8d34ccb8 100644
--- a/arch/x86/kernel/cpu/mshyperv.c
+++ b/arch/x86/kernel/cpu/mshyperv.c
@@ -49,6 +49,9 @@ void hyperv_vector_handler(struct pt_regs *regs)
 	if (vmbus_handler)
 		vmbus_handler();
 
+	if (ms_hyperv.hints & HV_X64_DEPRECATING_AEOI_RECOMMENDED)
+		ack_APIC_irq();
+
 	exiting_irq();
 	set_irq_regs(old_regs);
 }