diff mbox series

[v3,1/3] target/riscv/kvm: create kvm_riscv_aia_access_reg

Message ID 202603121125441042seaT4WiHz7KqQob-s97i@zte.com.cn
State New
Headers show
Series riscv: AIA: Add in-kernel irqchips save and restore function support | expand

Commit Message

liu.xuemei1@zte.com.cn March 12, 2026, 3:25 a.m. UTC 
From: Xuemei Liu <liu.xuemei1@zte.com.cn>

Create common function kvm_riscv_aia_access_reg to access APLIC
and IMSIC regs

Signed-off-by: Xuemei Liu <liu.xuemei1@zte.com.cn>
---
 target/riscv/kvm/kvm-cpu.c   | 7 ++++++-
 target/riscv/kvm/kvm_riscv.h | 1 +
 2 files changed, 7 insertions(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/target/riscv/kvm/kvm-cpu.c b/target/riscv/kvm/kvm-cpu.c
index befcbb0a9a..2c29d8d07c 100644
--- a/target/riscv/kvm/kvm-cpu.c
+++ b/target/riscv/kvm/kvm-cpu.c
@@ -58,6 +58,7 @@  void riscv_kvm_aplic_request(void *opaque, int irq, int level)
 }

 static bool cap_has_mp_state;
+static int aia_fd = -1;

 #define KVM_RISCV_REG_ID_U32(type, idx) (KVM_REG_RISCV | KVM_REG_SIZE_U32 | \
                                          type | idx)
@@ -1842,13 +1843,17 @@  void kvm_arch_accel_class_init(ObjectClass *oc)
                                     "auto");
 }

+void kvm_riscv_aia_access_reg(int group, uint64_t addr, void *val, bool write)
+{
+    kvm_device_access(aia_fd, group, addr, val, write, &error_abort);
+}
+
 void kvm_riscv_aia_create(MachineState *machine, uint64_t group_shift,
                           uint64_t aia_irq_num, uint64_t aia_msi_num,
                           uint64_t aplic_base, uint64_t imsic_base,
                           uint64_t guest_num)
 {
     int ret, i;
-    int aia_fd = -1;
     uint64_t default_aia_mode;
     uint64_t socket_count = riscv_socket_count(machine);
     uint64_t max_hart_per_socket = 0;
diff --git a/target/riscv/kvm/kvm_riscv.h b/target/riscv/kvm/kvm_riscv.h
index 953db94160..cec13d9f31 100644
--- a/target/riscv/kvm/kvm_riscv.h
+++ b/target/riscv/kvm/kvm_riscv.h
@@ -23,6 +23,7 @@ 

 void kvm_riscv_reset_vcpu(RISCVCPU *cpu);
 void kvm_riscv_set_irq(RISCVCPU *cpu, int irq, int level);
+void kvm_riscv_aia_access_reg(int group, uint64_t addr, void *val, bool write);
 void kvm_riscv_aia_create(MachineState *machine, uint64_t group_shift,
                           uint64_t aia_irq_num, uint64_t aia_msi_num,
                           uint64_t aplic_base, uint64_t imsic_base,