From: Benjamin Herrenschmidt Date: Wed, 24 May 2017 01:53:46 +0000 (-0400) Subject: powerpc/powernv: Properly set "host-ipi" on IPIs X-Git-Tag: C0P2-H0.0--20200415~8645 X-Git-Url: https://git.somdevices.com/?a=commitdiff_plain;h=c419fe260b549c543119ea7e2db4916b9aac26f3;p=linux.git 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 Signed-off-by: Michael Ellerman Signed-off-by: Sasha Levin Signed-off-by: Greg Kroah-Hartman --- diff --git a/arch/powerpc/sysdev/xics/icp-opal.c b/arch/powerpc/sysdev/xics/icp-opal.c index 32c46b424dd0..b53f80f0b4d8 100644 --- 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(); }