#include "qemu/osdep.h"
#include "qemu/log.h"
+#include "qemu/module.h"
#include "qapi/error.h"
#include "qemu/error-report.h"
#include "target/ppc/cpu.h"
#include "sysemu/cpus.h"
+#include "sysemu/reset.h"
+#include "migration/vmstate.h"
#include "monitor/monitor.h"
#include "hw/ppc/fdt.h"
#include "hw/ppc/spapr.h"
#define SPAPR_XIVE_NVT_BASE 0x400
-/*
- * The sPAPR machine has a unique XIVE IC device. Assign a fixed value
- * to the controller block id value. It can nevertheless be changed
- * for testing purpose.
- */
-#define SPAPR_XIVE_BLOCK_ID 0x0
-
/*
* sPAPR NVT and END indexing helpers
*/
* sPAPR END indexing uses a simple mapping of the CPU vcpu_id, 8
* priorities per CPU
*/
+int spapr_xive_end_to_target(uint8_t end_blk, uint32_t end_idx,
+ uint32_t *out_server, uint8_t *out_prio)
+{
+
+ assert(end_blk == SPAPR_XIVE_BLOCK_ID);
+
+ if (out_server) {
+ *out_server = end_idx >> 3;
+ }
+
+ if (out_prio) {
+ *out_prio = end_idx & 0x7;
+ }
+ return 0;
+}
+
static void spapr_xive_cpu_to_end(PowerPCCPU *cpu, uint8_t prio,
uint8_t *out_end_blk, uint32_t *out_end_idx)
{
static void spapr_xive_end_pic_print_info(SpaprXive *xive, XiveEND *end,
Monitor *mon)
{
+ uint64_t qaddr_base = xive_end_qaddr(end);
uint32_t qindex = xive_get_field32(END_W1_PAGE_OFF, end->w1);
uint32_t qgen = xive_get_field32(END_W1_GENERATION, end->w1);
uint32_t qsize = xive_get_field32(END_W0_QSIZE, end->w0);
uint32_t nvt = xive_get_field32(END_W6_NVT_INDEX, end->w6);
uint8_t priority = xive_get_field32(END_W7_F0_PRIORITY, end->w7);
- monitor_printf(mon, "%3d/%d % 6d/%5d ^%d",
+ monitor_printf(mon, "%3d/%d % 6d/%5d @%"PRIx64" ^%d",
spapr_xive_nvt_to_target(0, nvt),
- priority, qindex, qentries, qgen);
+ priority, qindex, qentries, qaddr_base, qgen);
xive_end_queue_pic_print_info(end, 6, mon);
monitor_printf(mon, "]");
XiveSource *xsrc = &xive->source;
int i;
- monitor_printf(mon, " LSIN PQ EISN CPU/PRIO EQ\n");
+ if (kvm_irqchip_in_kernel()) {
+ Error *local_err = NULL;
+
+ kvmppc_xive_synchronize_state(xive, &local_err);
+ if (local_err) {
+ error_report_err(local_err);
+ return;
+ }
+ }
+
+ monitor_printf(mon, " LISN PQ EISN CPU/PRIO EQ\n");
for (i = 0; i < xive->nr_irqs; i++) {
uint8_t pq = xive_source_esb_get(xsrc, i);
}
}
-static void spapr_xive_map_mmio(SpaprXive *xive)
-{
- sysbus_mmio_map(SYS_BUS_DEVICE(xive), 0, xive->vc_base);
- sysbus_mmio_map(SYS_BUS_DEVICE(xive), 1, xive->end_base);
- sysbus_mmio_map(SYS_BUS_DEVICE(xive), 2, xive->tm_base);
-}
-
void spapr_xive_mmio_set_enabled(SpaprXive *xive, bool enable)
{
memory_region_set_enabled(&xive->source.esb_mmio, enable);
object_initialize_child(obj, "end_source", &xive->end_source,
sizeof(xive->end_source), TYPE_XIVE_END_SOURCE,
&error_abort, NULL);
+
+ /* Not connected to the KVM XIVE device */
+ xive->fd = -1;
}
static void spapr_xive_realize(DeviceState *dev, Error **errp)
error_propagate(errp, local_err);
return;
}
+ sysbus_init_mmio(SYS_BUS_DEVICE(xive), &xsrc->esb_mmio);
/*
* Initialize the END ESB source
error_propagate(errp, local_err);
return;
}
+ sysbus_init_mmio(SYS_BUS_DEVICE(xive), &end_xsrc->esb_mmio);
/* Set the mapping address of the END ESB pages after the source ESBs */
xive->end_base = xive->vc_base + (1ull << xsrc->esb_shift) * xsrc->nr_irqs;
xive->eat = g_new0(XiveEAS, xive->nr_irqs);
xive->endt = g_new0(XiveEND, xive->nr_ends);
+ xive->nodename = g_strdup_printf("interrupt-controller@%" PRIx64,
+ xive->tm_base + XIVE_TM_USER_PAGE * (1 << TM_SHIFT));
+
+ qemu_register_reset(spapr_xive_reset, dev);
+
/* TIMA initialization */
memory_region_init_io(&xive->tm_mmio, OBJECT(xive), &xive_tm_ops, xive,
"xive.tima", 4ull << TM_SHIFT);
-
- /* Define all XIVE MMIO regions on SysBus */
- sysbus_init_mmio(SYS_BUS_DEVICE(xive), &xsrc->esb_mmio);
- sysbus_init_mmio(SYS_BUS_DEVICE(xive), &end_xsrc->esb_mmio);
sysbus_init_mmio(SYS_BUS_DEVICE(xive), &xive->tm_mmio);
- /* Map all regions */
- spapr_xive_map_mmio(xive);
-
- xive->nodename = g_strdup_printf("interrupt-controller@%" PRIx64,
- xive->tm_base + XIVE_TM_USER_PAGE * (1 << TM_SHIFT));
-
- qemu_register_reset(spapr_xive_reset, dev);
+ /*
+ * Map all regions. These will be enabled or disabled at reset and
+ * can also be overridden by KVM memory regions if active
+ */
+ sysbus_mmio_map(SYS_BUS_DEVICE(xive), 0, xive->vc_base);
+ sysbus_mmio_map(SYS_BUS_DEVICE(xive), 1, xive->end_base);
+ sysbus_mmio_map(SYS_BUS_DEVICE(xive), 2, xive->tm_base);
}
static int spapr_xive_get_eas(XiveRouter *xrtr, uint8_t eas_blk,
},
};
+static int vmstate_spapr_xive_pre_save(void *opaque)
+{
+ if (kvm_irqchip_in_kernel()) {
+ return kvmppc_xive_pre_save(SPAPR_XIVE(opaque));
+ }
+
+ return 0;
+}
+
+/*
+ * Called by the sPAPR IRQ backend 'post_load' method at the machine
+ * level.
+ */
+int spapr_xive_post_load(SpaprXive *xive, int version_id)
+{
+ if (kvm_irqchip_in_kernel()) {
+ return kvmppc_xive_post_load(xive, version_id);
+ }
+
+ return 0;
+}
+
static const VMStateDescription vmstate_spapr_xive = {
.name = TYPE_SPAPR_XIVE,
.version_id = 1,
.minimum_version_id = 1,
+ .pre_save = vmstate_spapr_xive_pre_save,
+ .post_load = NULL, /* handled at the machine level */
.fields = (VMStateField[]) {
VMSTATE_UINT32_EQUAL(nr_irqs, SpaprXive, NULL),
VMSTATE_STRUCT_VARRAY_POINTER_UINT32(eat, SpaprXive, nr_irqs,
if (lsi) {
xive_source_irq_set_lsi(xsrc, lisn);
}
+
+ if (kvm_irqchip_in_kernel()) {
+ Error *local_err = NULL;
+
+ kvmppc_xive_source_reset_one(xsrc, lisn, &local_err);
+ if (local_err) {
+ error_report_err(local_err);
+ return false;
+ }
+ }
+
return true;
}
new_eas.w = xive_set_field64(EAS_END_DATA, new_eas.w, eisn);
}
+ if (kvm_irqchip_in_kernel()) {
+ Error *local_err = NULL;
+
+ kvmppc_xive_set_source_config(xive, lisn, &new_eas, &local_err);
+ if (local_err) {
+ error_report_err(local_err);
+ return H_HARDWARE;
+ }
+ }
+
out:
xive->eat[lisn] = new_eas;
return H_SUCCESS;
case 16:
case 21:
case 24:
+ if (!QEMU_IS_ALIGNED(qpage, 1ul << qsize)) {
+ qemu_log_mask(LOG_GUEST_ERROR, "XIVE: EQ @0x%" HWADDR_PRIx
+ " is not naturally aligned with %" HWADDR_PRIx "\n",
+ qpage, (hwaddr)1 << qsize);
+ return H_P4;
+ }
end.w2 = cpu_to_be32((qpage >> 32) & 0x0fffffff);
end.w3 = cpu_to_be32(qpage & 0xffffffff);
end.w0 |= cpu_to_be32(END_W0_ENQUEUE);
*/
out:
+ if (kvm_irqchip_in_kernel()) {
+ Error *local_err = NULL;
+
+ kvmppc_xive_set_queue_config(xive, end_blk, end_idx, &end, &local_err);
+ if (local_err) {
+ error_report_err(local_err);
+ return H_HARDWARE;
+ }
+ }
+
/* Update END */
memcpy(&xive->endt[end_idx], &end, sizeof(XiveEND));
return H_SUCCESS;
}
if (xive_end_is_enqueue(end)) {
- args[1] = (uint64_t) be32_to_cpu(end->w2 & 0x0fffffff) << 32
- | be32_to_cpu(end->w3);
+ args[1] = xive_end_qaddr(end);
args[2] = xive_get_field32(END_W0_QSIZE, end->w0) + 12;
} else {
args[1] = 0;
args[2] = 0;
}
+ if (kvm_irqchip_in_kernel()) {
+ Error *local_err = NULL;
+
+ kvmppc_xive_get_queue_config(xive, end_blk, end_idx, end, &local_err);
+ if (local_err) {
+ error_report_err(local_err);
+ return H_HARDWARE;
+ }
+ }
+
/* TODO: do we need any locking on the END ? */
if (flags & SPAPR_XIVE_END_DEBUG) {
/* Load the event queue generation number into the return flags */
return H_P3;
}
- mmio_addr = xive->vc_base + xive_source_esb_mgmt(xsrc, lisn) + offset;
+ if (kvm_irqchip_in_kernel()) {
+ args[0] = kvmppc_xive_esb_rw(xsrc, lisn, offset, data,
+ flags & SPAPR_XIVE_ESB_STORE);
+ } else {
+ mmio_addr = xive->vc_base + xive_source_esb_mgmt(xsrc, lisn) + offset;
- if (dma_memory_rw(&address_space_memory, mmio_addr, &data, 8,
- (flags & SPAPR_XIVE_ESB_STORE))) {
- qemu_log_mask(LOG_GUEST_ERROR, "XIVE: failed to access ESB @0x%"
- HWADDR_PRIx "\n", mmio_addr);
- return H_HARDWARE;
+ if (dma_memory_rw(&address_space_memory, mmio_addr, &data, 8,
+ (flags & SPAPR_XIVE_ESB_STORE))) {
+ qemu_log_mask(LOG_GUEST_ERROR, "XIVE: failed to access ESB @0x%"
+ HWADDR_PRIx "\n", mmio_addr);
+ return H_HARDWARE;
+ }
+ args[0] = (flags & SPAPR_XIVE_ESB_STORE) ? -1 : data;
}
- args[0] = (flags & SPAPR_XIVE_ESB_STORE) ? -1 : data;
return H_SUCCESS;
}
* This is not needed when running the emulation under QEMU
*/
- /* This is not real hardware. Nothing to be done */
+ /*
+ * This is not real hardware. Nothing to be done unless when
+ * under KVM
+ */
+
+ if (kvm_irqchip_in_kernel()) {
+ Error *local_err = NULL;
+
+ kvmppc_xive_sync_source(xive, lisn, &local_err);
+ if (local_err) {
+ error_report_err(local_err);
+ return H_HARDWARE;
+ }
+ }
return H_SUCCESS;
}
}
device_reset(DEVICE(xive));
+
+ if (kvm_irqchip_in_kernel()) {
+ Error *local_err = NULL;
+
+ kvmppc_xive_reset(xive, &local_err);
+ if (local_err) {
+ error_report_err(local_err);
+ return H_HARDWARE;
+ }
+ }
return H_SUCCESS;
}
projects / qemu.git / blobdiff