4.9-stable review patch. If anyone has any objections, please let me know.
------------------ From: Benjamin Herrenschmidt <[email protected]> [ Upstream commit f83e6862047e1e371bdc5d512dd6cabe8a3965b8 ] Otherwise KVM will fail to pass them through to the host Signed-off-by: Benjamin Herrenschmidt <[email protected]> Signed-off-by: Michael Ellerman <[email protected]> Signed-off-by: Sasha Levin <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> --- arch/powerpc/sysdev/xics/icp-opal.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) --- 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, { 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(); }
