powerpc/powernv: Properly set "host-ipi" on IPIs

[ Upstream commit f83e6862047e1e371bdc5d512dd6cabe8a3965b8 ]

Otherwise KVM will fail to pass them through to the host

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/arch/powerpc/sysdev/xics/icp-opal.c b/arch/powerpc/sysdev/xics/icp-opal.c
index 32c46b4..b53f80f 100644 (file)
--- a/arch/powerpc/sysdev/xics/icp-opal.c
+++ b/arch/powerpc/sysdev/xics/icp-opal.c
@@ -130,14 +130,16 @@ static void icp_opal_cause_ipi(int cpu, unsigned long data)
 {
        int hw_cpu = get_hard_smp_processor_id(cpu);
 
+       kvmppc_set_host_ipi(cpu, 1);
        opal_int_set_mfrr(hw_cpu, IPI_PRIORITY);
 }
 
 static irqreturn_t icp_opal_ipi_action(int irq, void *dev_id)
 {
-       int hw_cpu = hard_smp_processor_id();
+       int cpu = smp_processor_id();
 
-       opal_int_set_mfrr(hw_cpu, 0xff);
+       kvmppc_set_host_ipi(cpu, 0);
+       opal_int_set_mfrr(get_hard_smp_processor_id(cpu), 0xff);
 
        return smp_ipi_demux();
 }