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authorBenjamin Herrenschmidt <benh@kernel.crashing.org>2018-01-12 05:39:28 +0300
committerMichael Ellerman <mpe@ellerman.id.au>2018-01-12 07:24:44 +0300
commit7f1c410da59090f9bb2300efebbc3b717594d64c (patch)
treea01f0e72172aee94f076eabe6fe799e606bdc99e /arch/powerpc/sysdev
parent12c1f339cd49119e39063ae67f02d936f988c079 (diff)
downloadlinux-7f1c410da59090f9bb2300efebbc3b717594d64c.tar.xz
powerpc/xive: Add interrupt flag to disable automatic EOI
This will be used by KVM in order to keep escalation interrupts in the non-EOI (masked) state after they fire. They will be re-enabled directly in HW by KVM when needed. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc/sysdev')
-rw-r--r--arch/powerpc/sysdev/xive/common.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/powerpc/sysdev/xive/common.c b/arch/powerpc/sysdev/xive/common.c
index a3b8d7d1316e..2547b6021e6a 100644
--- a/arch/powerpc/sysdev/xive/common.c
+++ b/arch/powerpc/sysdev/xive/common.c
@@ -367,7 +367,8 @@ static void xive_irq_eoi(struct irq_data *d)
* EOI the source if it hasn't been disabled and hasn't
* been passed-through to a KVM guest
*/
- if (!irqd_irq_disabled(d) && !irqd_is_forwarded_to_vcpu(d))
+ if (!irqd_irq_disabled(d) && !irqd_is_forwarded_to_vcpu(d) &&
+ !(xd->flags & XIVE_IRQ_NO_EOI))
xive_do_source_eoi(irqd_to_hwirq(d), xd);
/*