[PATCH 1/1] hw/intc/riscv_aplic: Fix APLIC in clrip and clripnum write emulation

[Yong-Xuan Wang]

In the section "4.7 Precise effects on interrupt-pending bits"
of the RISC-V AIA specification defines that:

If the source mode is Level1 or Level0 and the interrupt domain
is configured in MSI delivery mode (domaincfg.DM = 1):
The pending bit is cleared whenever the rectified input value is
low, when the interrupt is forwarded by MSI, or by a relevant
write to an in clrip register or to clripnum.

Update the riscv_aplic_set_pending() to match the spec.

Signed-off-by: Yong-Xuan Wang <yongxuan.w...@sifive.com>
---
 hw/intc/riscv_aplic.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/hw/intc/riscv_aplic.c b/hw/intc/riscv_aplic.c
index c1748c2d17d1..45d8b4089229 100644
--- a/hw/intc/riscv_aplic.c
+++ b/hw/intc/riscv_aplic.c
@@ -247,7 +247,7 @@ static void riscv_aplic_set_pending(RISCVAPLICState *aplic,
 
     if ((sm == APLIC_SOURCECFG_SM_LEVEL_HIGH) ||
         (sm == APLIC_SOURCECFG_SM_LEVEL_LOW)) {
-        if (!aplic->msimode || (aplic->msimode && !pending)) {
+        if (!aplic->msimode) {
             return;
         }
         if ((aplic->state[irq] & APLIC_ISTATE_INPUT) &&
-- 
2.17.1