Skip to content

Commit

Permalink
powerpc/powernv: Properly set "host-ipi" on IPIs
Browse files Browse the repository at this point in the history
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>
  • Loading branch information
Benjamin Herrenschmidt authored and Michael Ellerman committed Feb 9, 2017
1 parent 9b25671 commit f83e686
Showing 1 changed file with 4 additions and 2 deletions.
6 changes: 4 additions & 2 deletions arch/powerpc/sysdev/xics/icp-opal.c
Original file line number Diff line number Diff line change
Expand Up @@ -120,14 +120,16 @@ 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();
}
Expand Down

0 comments on commit f83e686

Please sign in to comment.