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-rw-r--r--hw/intc/pnv_xive.c37
-rw-r--r--hw/intc/pnv_xive2.c37
-rw-r--r--hw/intc/spapr_xive.c25
-rw-r--r--hw/intc/xive.c48
-rw-r--r--hw/intc/xive2.c42
5 files changed, 175 insertions, 14 deletions
diff --git a/hw/intc/pnv_xive.c b/hw/intc/pnv_xive.c
index 621b20a03f..1ce1d7b07d 100644
--- a/hw/intc/pnv_xive.c
+++ b/hw/intc/pnv_xive.c
@@ -403,6 +403,34 @@ static int pnv_xive_get_eas(XiveRouter *xrtr, uint8_t blk, uint32_t idx,
return pnv_xive_vst_read(xive, VST_TSEL_IVT, blk, idx, eas);
}
+static int pnv_xive_get_pq(XiveRouter *xrtr, uint8_t blk, uint32_t idx,
+ uint8_t *pq)
+{
+ PnvXive *xive = PNV_XIVE(xrtr);
+
+ if (pnv_xive_block_id(xive) != blk) {
+ xive_error(xive, "VST: EAS %x is remote !?", XIVE_EAS(blk, idx));
+ return -1;
+ }
+
+ *pq = xive_source_esb_get(&xive->ipi_source, idx);
+ return 0;
+}
+
+static int pnv_xive_set_pq(XiveRouter *xrtr, uint8_t blk, uint32_t idx,
+ uint8_t *pq)
+{
+ PnvXive *xive = PNV_XIVE(xrtr);
+
+ if (pnv_xive_block_id(xive) != blk) {
+ xive_error(xive, "VST: EAS %x is remote !?", XIVE_EAS(blk, idx));
+ return -1;
+ }
+
+ *pq = xive_source_esb_set(&xive->ipi_source, idx, *pq);
+ return 0;
+}
+
/*
* One bit per thread id. The first register PC_THREAD_EN_REG0 covers
* the first cores 0-15 (normal) of the chip or 0-7 (fused). The
@@ -499,12 +527,12 @@ static PnvXive *pnv_xive_tm_get_xive(PowerPCCPU *cpu)
* event notification to the Router. This is required on a multichip
* system.
*/
-static void pnv_xive_notify(XiveNotifier *xn, uint32_t srcno)
+static void pnv_xive_notify(XiveNotifier *xn, uint32_t srcno, bool pq_checked)
{
PnvXive *xive = PNV_XIVE(xn);
uint8_t blk = pnv_xive_block_id(xive);
- xive_router_notify(xn, XIVE_EAS(blk, srcno));
+ xive_router_notify(xn, XIVE_EAS(blk, srcno), pq_checked);
}
/*
@@ -1351,7 +1379,8 @@ static void pnv_xive_ic_hw_trigger(PnvXive *xive, hwaddr addr, uint64_t val)
blk = XIVE_EAS_BLOCK(val);
idx = XIVE_EAS_INDEX(val);
- xive_router_notify(XIVE_NOTIFIER(xive), XIVE_EAS(blk, idx));
+ xive_router_notify(XIVE_NOTIFIER(xive), XIVE_EAS(blk, idx),
+ !!(val & XIVE_TRIGGER_PQ));
}
static void pnv_xive_ic_notify_write(void *opaque, hwaddr addr, uint64_t val,
@@ -1971,6 +2000,8 @@ static void pnv_xive_class_init(ObjectClass *klass, void *data)
device_class_set_props(dc, pnv_xive_properties);
xrc->get_eas = pnv_xive_get_eas;
+ xrc->get_pq = pnv_xive_get_pq;
+ xrc->set_pq = pnv_xive_set_pq;
xrc->get_end = pnv_xive_get_end;
xrc->write_end = pnv_xive_write_end;
xrc->get_nvt = pnv_xive_get_nvt;
diff --git a/hw/intc/pnv_xive2.c b/hw/intc/pnv_xive2.c
index 35a7f7ae4d..1fa89c7792 100644
--- a/hw/intc/pnv_xive2.c
+++ b/hw/intc/pnv_xive2.c
@@ -285,6 +285,34 @@ static int pnv_xive2_vst_write(PnvXive2 *xive, uint32_t type, uint8_t blk,
return 0;
}
+static int pnv_xive2_get_pq(Xive2Router *xrtr, uint8_t blk, uint32_t idx,
+ uint8_t *pq)
+{
+ PnvXive2 *xive = PNV_XIVE2(xrtr);
+
+ if (pnv_xive2_block_id(xive) != blk) {
+ xive2_error(xive, "VST: EAS %x is remote !?", XIVE_EAS(blk, idx));
+ return -1;
+ }
+
+ *pq = xive_source_esb_get(&xive->ipi_source, idx);
+ return 0;
+}
+
+static int pnv_xive2_set_pq(Xive2Router *xrtr, uint8_t blk, uint32_t idx,
+ uint8_t *pq)
+{
+ PnvXive2 *xive = PNV_XIVE2(xrtr);
+
+ if (pnv_xive2_block_id(xive) != blk) {
+ xive2_error(xive, "VST: EAS %x is remote !?", XIVE_EAS(blk, idx));
+ return -1;
+ }
+
+ *pq = xive_source_esb_set(&xive->ipi_source, idx, *pq);
+ return 0;
+}
+
static int pnv_xive2_get_end(Xive2Router *xrtr, uint8_t blk, uint32_t idx,
Xive2End *end)
{
@@ -487,12 +515,12 @@ static PnvXive2 *pnv_xive2_tm_get_xive(PowerPCCPU *cpu)
* source interrupt number before forwarding the source event
* notification to the Router. This is required on a multichip system.
*/
-static void pnv_xive2_notify(XiveNotifier *xn, uint32_t srcno)
+static void pnv_xive2_notify(XiveNotifier *xn, uint32_t srcno, bool pq_checked)
{
PnvXive2 *xive = PNV_XIVE2(xn);
uint8_t blk = pnv_xive2_block_id(xive);
- xive2_router_notify(xn, XIVE_EAS(blk, srcno));
+ xive2_router_notify(xn, XIVE_EAS(blk, srcno), pq_checked);
}
/*
@@ -1381,7 +1409,8 @@ static void pnv_xive2_ic_hw_trigger(PnvXive2 *xive, hwaddr addr,
blk = XIVE_EAS_BLOCK(val);
idx = XIVE_EAS_INDEX(val);
- xive2_router_notify(XIVE_NOTIFIER(xive), XIVE_EAS(blk, idx));
+ xive2_router_notify(XIVE_NOTIFIER(xive), XIVE_EAS(blk, idx),
+ !!(val & XIVE_TRIGGER_PQ));
}
static void pnv_xive2_ic_notify_write(void *opaque, hwaddr offset,
@@ -1880,6 +1909,8 @@ static void pnv_xive2_class_init(ObjectClass *klass, void *data)
device_class_set_props(dc, pnv_xive2_properties);
xrc->get_eas = pnv_xive2_get_eas;
+ xrc->get_pq = pnv_xive2_get_pq;
+ xrc->set_pq = pnv_xive2_set_pq;
xrc->get_end = pnv_xive2_get_end;
xrc->write_end = pnv_xive2_write_end;
xrc->get_nvp = pnv_xive2_get_nvp;
diff --git a/hw/intc/spapr_xive.c b/hw/intc/spapr_xive.c
index eae95c716f..dc641cc604 100644
--- a/hw/intc/spapr_xive.c
+++ b/hw/intc/spapr_xive.c
@@ -480,6 +480,29 @@ static uint8_t spapr_xive_get_block_id(XiveRouter *xrtr)
return SPAPR_XIVE_BLOCK_ID;
}
+static int spapr_xive_get_pq(XiveRouter *xrtr, uint8_t blk, uint32_t idx,
+ uint8_t *pq)
+{
+ SpaprXive *xive = SPAPR_XIVE(xrtr);
+
+ assert(SPAPR_XIVE_BLOCK_ID == blk);
+
+ *pq = xive_source_esb_get(&xive->source, idx);
+ return 0;
+}
+
+static int spapr_xive_set_pq(XiveRouter *xrtr, uint8_t blk, uint32_t idx,
+ uint8_t *pq)
+{
+ SpaprXive *xive = SPAPR_XIVE(xrtr);
+
+ assert(SPAPR_XIVE_BLOCK_ID == blk);
+
+ *pq = xive_source_esb_set(&xive->source, idx, *pq);
+ return 0;
+}
+
+
static const VMStateDescription vmstate_spapr_xive_end = {
.name = TYPE_SPAPR_XIVE "/end",
.version_id = 1,
@@ -788,6 +811,8 @@ static void spapr_xive_class_init(ObjectClass *klass, void *data)
dc->vmsd = &vmstate_spapr_xive;
xrc->get_eas = spapr_xive_get_eas;
+ xrc->get_pq = spapr_xive_get_pq;
+ xrc->set_pq = spapr_xive_set_pq;
xrc->get_end = spapr_xive_get_end;
xrc->write_end = spapr_xive_write_end;
xrc->get_nvt = spapr_xive_get_nvt;
diff --git a/hw/intc/xive.c b/hw/intc/xive.c
index 0d98b9539c..deb0db21e0 100644
--- a/hw/intc/xive.c
+++ b/hw/intc/xive.c
@@ -938,7 +938,7 @@ static void xive_source_notify(XiveSource *xsrc, int srcno)
XiveNotifierClass *xnc = XIVE_NOTIFIER_GET_CLASS(xsrc->xive);
if (xnc->notify) {
- xnc->notify(xsrc->xive, srcno);
+ xnc->notify(xsrc->xive, srcno, true);
}
}
@@ -1370,6 +1370,24 @@ int xive_router_get_eas(XiveRouter *xrtr, uint8_t eas_blk, uint32_t eas_idx,
return xrc->get_eas(xrtr, eas_blk, eas_idx, eas);
}
+static
+int xive_router_get_pq(XiveRouter *xrtr, uint8_t eas_blk, uint32_t eas_idx,
+ uint8_t *pq)
+{
+ XiveRouterClass *xrc = XIVE_ROUTER_GET_CLASS(xrtr);
+
+ return xrc->get_pq(xrtr, eas_blk, eas_idx, pq);
+}
+
+static
+int xive_router_set_pq(XiveRouter *xrtr, uint8_t eas_blk, uint32_t eas_idx,
+ uint8_t *pq)
+{
+ XiveRouterClass *xrc = XIVE_ROUTER_GET_CLASS(xrtr);
+
+ return xrc->set_pq(xrtr, eas_blk, eas_idx, pq);
+}
+
int xive_router_get_end(XiveRouter *xrtr, uint8_t end_blk, uint32_t end_idx,
XiveEND *end)
{
@@ -1721,7 +1739,7 @@ do_escalation:
xive_get_field32(END_W5_ESC_END_DATA, end.w5));
}
-void xive_router_notify(XiveNotifier *xn, uint32_t lisn)
+void xive_router_notify(XiveNotifier *xn, uint32_t lisn, bool pq_checked)
{
XiveRouter *xrtr = XIVE_ROUTER(xn);
uint8_t eas_blk = XIVE_EAS_BLOCK(lisn);
@@ -1734,11 +1752,27 @@ void xive_router_notify(XiveNotifier *xn, uint32_t lisn)
return;
}
- /*
- * The IVRE checks the State Bit Cache at this point. We skip the
- * SBC lookup because the state bits of the sources are modeled
- * internally in QEMU.
- */
+ if (!pq_checked) {
+ bool notify;
+ uint8_t pq;
+
+ /* PQ cache lookup */
+ if (xive_router_get_pq(xrtr, eas_blk, eas_idx, &pq)) {
+ /* Set FIR */
+ g_assert_not_reached();
+ }
+
+ notify = xive_esb_trigger(&pq);
+
+ if (xive_router_set_pq(xrtr, eas_blk, eas_idx, &pq)) {
+ /* Set FIR */
+ g_assert_not_reached();
+ }
+
+ if (!notify) {
+ return;
+ }
+ }
if (!xive_eas_is_valid(&eas)) {
qemu_log_mask(LOG_GUEST_ERROR, "XIVE: invalid LISN %x\n", lisn);
diff --git a/hw/intc/xive2.c b/hw/intc/xive2.c
index 2836bbdc83..3720e70422 100644
--- a/hw/intc/xive2.c
+++ b/hw/intc/xive2.c
@@ -171,6 +171,24 @@ int xive2_router_get_eas(Xive2Router *xrtr, uint8_t eas_blk, uint32_t eas_idx,
return xrc->get_eas(xrtr, eas_blk, eas_idx, eas);
}
+static
+int xive2_router_get_pq(Xive2Router *xrtr, uint8_t eas_blk, uint32_t eas_idx,
+ uint8_t *pq)
+{
+ Xive2RouterClass *xrc = XIVE2_ROUTER_GET_CLASS(xrtr);
+
+ return xrc->get_pq(xrtr, eas_blk, eas_idx, pq);
+}
+
+static
+int xive2_router_set_pq(Xive2Router *xrtr, uint8_t eas_blk, uint32_t eas_idx,
+ uint8_t *pq)
+{
+ Xive2RouterClass *xrc = XIVE2_ROUTER_GET_CLASS(xrtr);
+
+ return xrc->set_pq(xrtr, eas_blk, eas_idx, pq);
+}
+
int xive2_router_get_end(Xive2Router *xrtr, uint8_t end_blk, uint32_t end_idx,
Xive2End *end)
{
@@ -480,7 +498,7 @@ do_escalation:
xive_get_field32(END2_W5_ESC_END_DATA, end.w5));
}
-void xive2_router_notify(XiveNotifier *xn, uint32_t lisn)
+void xive2_router_notify(XiveNotifier *xn, uint32_t lisn, bool pq_checked)
{
Xive2Router *xrtr = XIVE2_ROUTER(xn);
uint8_t eas_blk = XIVE_EAS_BLOCK(lisn);
@@ -493,6 +511,28 @@ void xive2_router_notify(XiveNotifier *xn, uint32_t lisn)
return;
}
+ if (!pq_checked) {
+ bool notify;
+ uint8_t pq;
+
+ /* PQ cache lookup */
+ if (xive2_router_get_pq(xrtr, eas_blk, eas_idx, &pq)) {
+ /* Set FIR */
+ g_assert_not_reached();
+ }
+
+ notify = xive_esb_trigger(&pq);
+
+ if (xive2_router_set_pq(xrtr, eas_blk, eas_idx, &pq)) {
+ /* Set FIR */
+ g_assert_not_reached();
+ }
+
+ if (!notify) {
+ return;
+ }
+ }
+
if (!xive2_eas_is_valid(&eas)) {
qemu_log_mask(LOG_GUEST_ERROR, "XIVE: Invalid LISN %x\n", lisn);
return;
generated by cgit v1.2.3 (git 2.26.2) at 2025-03-19 16:29:38 +0000