diff mbox series

[v2,3/3] hw/intc/aplic: refine kvm_msicfgaddr

Message ID 20250224025722.3999-4-yongxuan.wang@sifive.com (mailing list archive)
State New
Headers show
Series riscv: AIA: refinement for KVM acceleration | expand

Commit Message

Yong-Xuan Wang Feb. 24, 2025, 2:57 a.m. UTC 
Let kvm_msicfgaddr use the same format with mmsicfgaddr and smsicfgaddr.

Signed-off-by: Yong-Xuan Wang <yongxuan.wang@sifive.com>
---
 hw/intc/riscv_aplic.c | 24 +++++++++++++-----------
 1 file changed, 13 insertions(+), 11 deletions(-)
diff mbox series

Patch

diff --git a/hw/intc/riscv_aplic.c b/hw/intc/riscv_aplic.c
index e5714267c096..5964cde7e09e 100644
--- a/hw/intc/riscv_aplic.c
+++ b/hw/intc/riscv_aplic.c
@@ -181,8 +181,10 @@  void riscv_aplic_set_kvm_msicfgaddr(RISCVAPLICState *aplic, hwaddr addr)
 {
 #ifdef CONFIG_KVM
     if (riscv_use_emulated_aplic(aplic->msimode)) {
+        addr >>= APLIC_xMSICFGADDR_PPN_SHIFT;
         aplic->kvm_msicfgaddr = extract64(addr, 0, 32);
-        aplic->kvm_msicfgaddrH = extract64(addr, 32, 32);
+        aplic->kvm_msicfgaddrH = extract64(addr, 32, 32) &
+                                 APLIC_xMSICFGADDRH_VALID_MASK;
     }
 #endif
 }
@@ -403,12 +405,17 @@  static void riscv_aplic_msi_send(RISCVAPLICState *aplic,
         }
     }
 
-    if (aplic->mmode) {
-        msicfgaddr = aplic_m->mmsicfgaddr;
-        msicfgaddrH = aplic_m->mmsicfgaddrH;
+    if (aplic->kvm_splitmode) {
+        msicfgaddr = aplic->kvm_msicfgaddr;
+        msicfgaddrH = ((uint64_t)aplic->kvm_msicfgaddrH << 32);
     } else {
-        msicfgaddr = aplic_m->smsicfgaddr;
-        msicfgaddrH = aplic_m->smsicfgaddrH;
+        if (aplic->mmode) {
+            msicfgaddr = aplic_m->mmsicfgaddr;
+            msicfgaddrH = aplic_m->mmsicfgaddrH;
+        } else {
+            msicfgaddr = aplic_m->smsicfgaddr;
+            msicfgaddrH = aplic_m->smsicfgaddrH;
+        }
     }
 
     lhxs = (msicfgaddrH >> APLIC_xMSICFGADDRH_LHXS_SHIFT) &
@@ -431,11 +438,6 @@  static void riscv_aplic_msi_send(RISCVAPLICState *aplic,
     addr |= (uint64_t)(guest_idx & APLIC_xMSICFGADDR_PPN_HART(lhxs));
     addr <<= APLIC_xMSICFGADDR_PPN_SHIFT;
 
-    if (aplic->kvm_splitmode) {
-        addr |= aplic->kvm_msicfgaddr;
-        addr |= ((uint64_t)aplic->kvm_msicfgaddrH << 32);
-    }
-
     address_space_stl_le(&address_space_memory, addr,
                          eiid, MEMTXATTRS_UNSPECIFIED, &result);
     if (result != MEMTX_OK) {