[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[Qemu-devel] [RFC PATCH v1 02/13] spapr: Add DRC dt entries for CPUs
From: |
Bharata B Rao |
Subject: |
[Qemu-devel] [RFC PATCH v1 02/13] spapr: Add DRC dt entries for CPUs |
Date: |
Thu, 8 Jan 2015 11:40:09 +0530 |
Advertise CPU DR-capability to the guest via device tree.
Signed-off-by: Bharata B Rao <address@hidden>
Signed-off-by: Michael Roth <address@hidden>
[spapr_drc_reset implementation]
---
hw/ppc/spapr.c | 28 ++++++++++++++++++++++++++++
1 file changed, 28 insertions(+)
diff --git a/hw/ppc/spapr.c b/hw/ppc/spapr.c
index 71e7052..98a32d0 100644
--- a/hw/ppc/spapr.c
+++ b/hw/ppc/spapr.c
@@ -807,6 +807,14 @@ static void spapr_finalize_fdt(sPAPREnvironment *spapr,
spapr_populate_chosen_stdout(fdt, spapr->vio_bus);
}
+ if (spapr->dr_cpu_enabled) {
+ int offset = fdt_path_offset(fdt, "/cpus");
+ ret = spapr_drc_populate_dt(fdt, offset, SPAPR_DR_CONNECTOR_TYPE_CPU);
+ if (ret < 0) {
+ fprintf(stderr, "Couldn't set up CPU DR device tree properties\n");
+ }
+ }
+
_FDT((fdt_pack(fdt)));
if (fdt_totalsize(fdt) > FDT_MAX_SIZE) {
@@ -1358,6 +1366,16 @@ static SaveVMHandlers savevm_htab_handlers = {
.load_state = htab_load,
};
+static void spapr_drc_reset(void *opaque)
+{
+ sPAPRDRConnector *drc = opaque;
+ DeviceState *d = DEVICE(drc);
+
+ if (d) {
+ device_reset(d);
+ }
+}
+
/* pSeries LPAR / sPAPR hardware init */
static void ppc_spapr_init(MachineState *machine)
{
@@ -1383,6 +1401,7 @@ static void ppc_spapr_init(MachineState *machine)
long load_limit, fw_size;
bool kernel_le = false;
char *filename;
+ int smt = kvmppc_smt_threads();
msi_supported = true;
@@ -1526,6 +1545,15 @@ static void ppc_spapr_init(MachineState *machine)
spapr->dr_cpu_enabled = smc->dr_cpu_enabled;
spapr->dr_lmb_enabled = smc->dr_lmb_enabled;
+ if (spapr->dr_cpu_enabled) {
+ for (i = 0; i < max_cpus/smp_threads; i++) {
+ sPAPRDRConnector *drc =
+ spapr_dr_connector_new(OBJECT(machine),
+ SPAPR_DR_CONNECTOR_TYPE_CPU, i * smt);
+ qemu_register_reset(spapr_drc_reset, drc);
+ }
+ }
+
/* Set up PCI */
spapr_pci_rtas_init();
--
2.1.0
- Re: [Qemu-devel] [RFC PATCH v1 07/13] spapr: Start all the threads of CPU core when core is hotplugged, (continued)
- [Qemu-devel] [RFC PATCH v1 05/13] spapr: Support ibm, lrdr-capacity device tree property, Bharata B Rao, 2015/01/08
- [Qemu-devel] [RFC PATCH v1 12/13] spapr: Support ibm, dynamic-reconfiguration-memory, Bharata B Rao, 2015/01/08
- [Qemu-devel] [RFC PATCH v1 09/13] spapr: CPU hot unplug support, Bharata B Rao, 2015/01/08
- [Qemu-devel] [RFC PATCH v1 02/13] spapr: Add DRC dt entries for CPUs,
Bharata B Rao <=
- [Qemu-devel] [RFC PATCH v1 06/13] spapr: CPU hotplug support, Bharata B Rao, 2015/01/08
- Re: [Qemu-devel] [RFC PATCH v1 06/13] spapr: CPU hotplug support, Igor Mammedov, 2015/01/23
- Re: [Qemu-devel] [RFC PATCH v1 06/13] spapr: CPU hotplug support, David Gibson, 2015/01/28
- [Qemu-devel] [RFC PATCH v1 10/13] cpus, spapr: reclaim allocated vCPU objects, Bharata B Rao, 2015/01/08