[Skiboot] [PATCH 43/60] xive: Add more checks for exploitation mode

[Benjamin Herrenschmidt]

All the exploitation mode APIs should return an error
if the XIVE is configured for XICS emulation.

Signed-off-by: Benjamin Herrenschmidt <benh at kernel.crashing.org>
---
 hw/xive.c | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/hw/xive.c b/hw/xive.c
index 481fc28..c2fe95f 100644
--- a/hw/xive.c
+++ b/hw/xive.c
@@ -3163,6 +3163,9 @@ static int64_t opal_xive_get_irq_config(uint32_t girq,
 {
 	uint32_t vp;
 
+	if (xive_mode != XIVE_MODE_EXPL)
+		return OPAL_WRONG_STATE;
+
 	if (xive_get_irq_targetting(girq, &vp, out_prio, out_lirq)) {
 		*out_vp = vp;
 		return OPAL_SUCCESS;
@@ -3183,6 +3186,9 @@ static int64_t opal_xive_set_irq_config(uint32_t girq,
 	 * WARNING: See comment in set_xive()
 	 */
 
+	if (xive_mode != XIVE_MODE_EXPL)
+		return OPAL_WRONG_STATE;
+
 	/* Let XIVE configure the EQ. We do the update without the
 	 * synchronous flag, thus a cache update failure will result
 	 * in us returning OPAL_BUSY
@@ -3273,6 +3279,8 @@ static int64_t opal_xive_set_queue_info(uint64_t vp, uint32_t prio,
 	bool group;
 	int64_t rc;
 
+	if (xive_mode != XIVE_MODE_EXPL)
+		return OPAL_WRONG_STATE;
 	if (!xive_eq_for_target(vp, prio, &blk, &idx))
 		return OPAL_PARAMETER;
 
@@ -3347,6 +3355,8 @@ static int64_t opal_xive_donate_page(uint32_t chip_id, uint64_t addr)
 	struct proc_chip *c = get_chip(chip_id);
 	struct list_node *n __unused;
 
+	if (xive_mode != XIVE_MODE_EXPL)
+		return OPAL_WRONG_STATE;
 	if (!c)
 		return OPAL_PARAMETER;
 	if (!c->xive)
@@ -3518,6 +3528,8 @@ static int64_t opal_xive_allocate_irq(uint32_t chip_id)
 	struct xive_ive *ive;
 	struct xive *x;
 
+	if (xive_mode != XIVE_MODE_EXPL)
+		return OPAL_WRONG_STATE;
 	if (!chip)
 		return OPAL_PARAMETER;
 	if (!chip->xive)
@@ -3561,6 +3573,8 @@ static int64_t opal_xive_free_irq(uint32_t girq)
 	struct xive_ive *ive;
 	uint32_t idx;
 
+	if (xive_mode != XIVE_MODE_EXPL)
+		return OPAL_WRONG_STATE;
 	if (!x || !is)
 		return OPAL_PARAMETER;
 
-- 
2.9.3