diff options
| author | Greg Kurz <groug@kaod.org> | 2019-11-26 17:46:23 +0100 |
|---|---|---|
| committer | David Gibson <david@gibson.dropbear.id.au> | 2019-12-17 10:39:48 +1100 |
| commit | 4ffb7496881ec361deaf1f51c41a933bde3cbf7b (patch) | |
| tree | 0a864924b890d68b53f2da1c72938fd0ed7cc374 /hw/intc/xics_spapr.c | |
| parent | 2a886794f1969020845d0085a41a884e01b357df (diff) | |
spapr: Pass the maximum number of vCPUs to the KVM interrupt controller
The XIVE and XICS-on-XIVE KVM devices on POWER9 hosts can greatly reduce
their consumption of some scarce HW resources, namely Virtual Presenter
identifiers, if they know the maximum number of vCPUs that may run in the
VM.
Prepare ground for this by passing the value down to xics_kvm_connect()
and kvmppc_xive_connect(). This is purely mechanical, no functional
change.
Signed-off-by: Greg Kurz <groug@kaod.org>
Message-Id: <157478678301.67101.2717368060417156338.stgit@bahia.tlslab.ibm.com>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Diffstat (limited to 'hw/intc/xics_spapr.c')
| -rw-r--r-- | hw/intc/xics_spapr.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/hw/intc/xics_spapr.c b/hw/intc/xics_spapr.c index b3705dab0e..8ae4f41459 100644 --- a/hw/intc/xics_spapr.c +++ b/hw/intc/xics_spapr.c @@ -422,10 +422,11 @@ static int xics_spapr_post_load(SpaprInterruptController *intc, int version_id) return 0; } -static int xics_spapr_activate(SpaprInterruptController *intc, Error **errp) +static int xics_spapr_activate(SpaprInterruptController *intc, + uint32_t nr_servers, Error **errp) { if (kvm_enabled()) { - return spapr_irq_init_kvm(xics_kvm_connect, intc, errp); + return spapr_irq_init_kvm(xics_kvm_connect, intc, nr_servers, errp); } return 0; } |