Commit c57e81889f for qemu.org

commit c57e81889faa5823d0d47c14a4dfc45914205d71
Author: Jinjie Ruan <ruanjinjie@huawei.com>
Date:   Fri Apr 19 14:33:05 2024 +0100

    hw/intc/arm_gicv3: Report the VINMI interrupt

    In vCPU Interface, if the vIRQ has the non-maskable property, report
    vINMI to the corresponding vPE.

    Signed-off-by: Jinjie Ruan <ruanjinjie@huawei.com>
    Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
    Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
    Message-id: 20240407081733.3231820-23-ruanjinjie@huawei.com
    Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

diff --git a/hw/intc/arm_gicv3_cpuif.c b/hw/intc/arm_gicv3_cpuif.c
index 2cf232d099..bdb13b00e9 100644
--- a/hw/intc/arm_gicv3_cpuif.c
+++ b/hw/intc/arm_gicv3_cpuif.c
@@ -481,6 +481,7 @@ void gicv3_cpuif_virt_irq_fiq_update(GICv3CPUState *cs)
     int idx;
     int irqlevel = 0;
     int fiqlevel = 0;
+    int nmilevel = 0;

     idx = hppvi_index(cs);
     trace_gicv3_cpuif_virt_update(gicv3_redist_affid(cs), idx,
@@ -498,9 +499,17 @@ void gicv3_cpuif_virt_irq_fiq_update(GICv3CPUState *cs)
         uint64_t lr = cs->ich_lr_el2[idx];

         if (icv_hppi_can_preempt(cs, lr)) {
-            /* Virtual interrupts are simple: G0 are always FIQ, and G1 IRQ */
+            /*
+             * Virtual interrupts are simple: G0 are always FIQ, and G1 are
+             * IRQ or NMI which depends on the ICH_LR<n>_EL2.NMI to have
+             * non-maskable property.
+             */
             if (lr & ICH_LR_EL2_GROUP) {
-                irqlevel = 1;
+                if (lr & ICH_LR_EL2_NMI) {
+                    nmilevel = 1;
+                } else {
+                    irqlevel = 1;
+                }
             } else {
                 fiqlevel = 1;
             }
@@ -510,6 +519,7 @@ void gicv3_cpuif_virt_irq_fiq_update(GICv3CPUState *cs)
     trace_gicv3_cpuif_virt_set_irqs(gicv3_redist_affid(cs), fiqlevel, irqlevel);
     qemu_set_irq(cs->parent_vfiq, fiqlevel);
     qemu_set_irq(cs->parent_virq, irqlevel);
+    qemu_set_irq(cs->parent_vnmi, nmilevel);
 }

 static void gicv3_cpuif_virt_update(GICv3CPUState *cs)