[RFC PATCH v3 03/27] target/loongarch: Add basic vmstate description of CPU.

[Xiaojuan Yang <yangxiaojuan@loongson.cn>]

This patch introduce vmstate_loongarch_cpu

Signed-off-by: Xiaojuan Yang <yangxiaojuan@loongson.cn>
Signed-off-by: Song Gao <gaosong@loongson.cn>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
---
 target/loongarch/cpu.c       |  3 ++
 target/loongarch/internals.h |  4 ++
 target/loongarch/machine.c   | 84 ++++++++++++++++++++++++++++++++++++
 target/loongarch/meson.build |  6 +++
 4 files changed, 97 insertions(+)
 create mode 100644 target/loongarch/machine.c

diff --git a/target/loongarch/cpu.c b/target/loongarch/cpu.c
index 69a814c8e9..55ecd83691 100644
--- a/target/loongarch/cpu.c
+++ b/target/loongarch/cpu.c
@@ -319,6 +319,9 @@ static void loongarch_cpu_class_init(ObjectClass *c, void *data)
     cc->has_work = loongarch_cpu_has_work;
     cc->dump_state = loongarch_cpu_dump_state;
     cc->set_pc = loongarch_cpu_set_pc;
+#ifndef CONFIG_USER_ONLY
+    dc->vmsd = &vmstate_loongarch_cpu;
+#endif
     cc->disas_set_info = loongarch_cpu_disas_set_info;
 #ifdef CONFIG_TCG
     cc->tcg_ops = &loongarch_tcg_ops;
diff --git a/target/loongarch/internals.h b/target/loongarch/internals.h
index 774a87ec80..c8e6f7012c 100644
--- a/target/loongarch/internals.h
+++ b/target/loongarch/internals.h
@@ -25,4 +25,8 @@ const char *loongarch_exception_name(int32_t exception);
 
 void restore_fp_status(CPULoongArchState *env);
 
+#ifndef CONFIG_USER_ONLY
+extern const VMStateDescription vmstate_loongarch_cpu;
+#endif
+
 #endif
diff --git a/target/loongarch/machine.c b/target/loongarch/machine.c
new file mode 100644
index 0000000000..b9effe6db2
--- /dev/null
+++ b/target/loongarch/machine.c
@@ -0,0 +1,84 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * QEMU LoongArch machine State
+ *
+ * Copyright (c) 2021 Loongson Technology Corporation Limited
+ */
+
+#include "qemu/osdep.h"
+#include "cpu.h"
+#include "migration/cpu.h"
+
+/* LoongArch CPU state */
+
+const VMStateDescription vmstate_loongarch_cpu = {
+    .name = "cpu",
+    .version_id = 0,
+    .minimum_version_id = 0,
+    .fields = (VMStateField[]) {
+
+        VMSTATE_UINTTL_ARRAY(env.gpr, LoongArchCPU, 32),
+        VMSTATE_UINTTL(env.pc, LoongArchCPU),
+        VMSTATE_UINT64_ARRAY(env.fpr, LoongArchCPU, 32),
+        VMSTATE_UINT32(env.fcsr0, LoongArchCPU),
+
+        /* Remaining CSR registers */
+        VMSTATE_UINT64(env.CSR_CRMD, LoongArchCPU),
+        VMSTATE_UINT64(env.CSR_PRMD, LoongArchCPU),
+        VMSTATE_UINT64(env.CSR_EUEN, LoongArchCPU),
+        VMSTATE_UINT64(env.CSR_MISC, LoongArchCPU),
+        VMSTATE_UINT64(env.CSR_ECFG, LoongArchCPU),
+        VMSTATE_UINT64(env.CSR_ESTAT, LoongArchCPU),
+        VMSTATE_UINT64(env.CSR_ERA, LoongArchCPU),
+        VMSTATE_UINT64(env.CSR_BADV, LoongArchCPU),
+        VMSTATE_UINT64(env.CSR_BADI, LoongArchCPU),
+        VMSTATE_UINT64(env.CSR_EENTRY, LoongArchCPU),
+        VMSTATE_UINT64(env.CSR_TLBIDX, LoongArchCPU),
+        VMSTATE_UINT64(env.CSR_TLBEHI, LoongArchCPU),
+        VMSTATE_UINT64(env.CSR_TLBELO0, LoongArchCPU),
+        VMSTATE_UINT64(env.CSR_TLBELO1, LoongArchCPU),
+        VMSTATE_UINT64(env.CSR_ASID, LoongArchCPU),
+        VMSTATE_UINT64(env.CSR_PGDL, LoongArchCPU),
+        VMSTATE_UINT64(env.CSR_PGDH, LoongArchCPU),
+        VMSTATE_UINT64(env.CSR_PGD, LoongArchCPU),
+        VMSTATE_UINT64(env.CSR_PWCL, LoongArchCPU),
+        VMSTATE_UINT64(env.CSR_PWCH, LoongArchCPU),
+        VMSTATE_UINT64(env.CSR_STLBPS, LoongArchCPU),
+        VMSTATE_UINT64(env.CSR_RVACFG, LoongArchCPU),
+        VMSTATE_UINT64(env.CSR_CPUID, LoongArchCPU),
+        VMSTATE_UINT64(env.CSR_PRCFG1, LoongArchCPU),
+        VMSTATE_UINT64(env.CSR_PRCFG2, LoongArchCPU),
+        VMSTATE_UINT64(env.CSR_PRCFG3, LoongArchCPU),
+        VMSTATE_UINT64_ARRAY(env.CSR_SAVE, LoongArchCPU, 16),
+        VMSTATE_UINT64(env.CSR_TID, LoongArchCPU),
+        VMSTATE_UINT64(env.CSR_TCFG, LoongArchCPU),
+        VMSTATE_UINT64(env.CSR_TVAL, LoongArchCPU),
+        VMSTATE_UINT64(env.CSR_CNTC, LoongArchCPU),
+        VMSTATE_UINT64(env.CSR_TICLR, LoongArchCPU),
+        VMSTATE_UINT64(env.CSR_LLBCTL, LoongArchCPU),
+        VMSTATE_UINT64(env.CSR_IMPCTL1, LoongArchCPU),
+        VMSTATE_UINT64(env.CSR_IMPCTL2, LoongArchCPU),
+        VMSTATE_UINT64(env.CSR_TLBRENTRY, LoongArchCPU),
+        VMSTATE_UINT64(env.CSR_TLBRBADV, LoongArchCPU),
+        VMSTATE_UINT64(env.CSR_TLBRERA, LoongArchCPU),
+        VMSTATE_UINT64(env.CSR_TLBRSAVE, LoongArchCPU),
+        VMSTATE_UINT64(env.CSR_TLBRELO0, LoongArchCPU),
+        VMSTATE_UINT64(env.CSR_TLBRELO1, LoongArchCPU),
+        VMSTATE_UINT64(env.CSR_TLBREHI, LoongArchCPU),
+        VMSTATE_UINT64(env.CSR_TLBRPRMD, LoongArchCPU),
+        VMSTATE_UINT64(env.CSR_MERRCTL, LoongArchCPU),
+        VMSTATE_UINT64(env.CSR_MERRINFO1, LoongArchCPU),
+        VMSTATE_UINT64(env.CSR_MERRINFO2, LoongArchCPU),
+        VMSTATE_UINT64(env.CSR_MERRENTRY, LoongArchCPU),
+        VMSTATE_UINT64(env.CSR_MERRERA, LoongArchCPU),
+        VMSTATE_UINT64(env.CSR_MERRSAVE, LoongArchCPU),
+        VMSTATE_UINT64(env.CSR_CTAG, LoongArchCPU),
+        VMSTATE_UINT64_ARRAY(env.CSR_DMW, LoongArchCPU, 4),
+        /* debug */
+        VMSTATE_UINT64(env.CSR_DBG, LoongArchCPU),
+        VMSTATE_UINT64(env.CSR_DERA, LoongArchCPU),
+        VMSTATE_UINT64(env.CSR_DSAVE, LoongArchCPU),
+
+        VMSTATE_END_OF_LIST()
+    },
+};
diff --git a/target/loongarch/meson.build b/target/loongarch/meson.build
index bcb076e55f..103f36ee15 100644
--- a/target/loongarch/meson.build
+++ b/target/loongarch/meson.build
@@ -14,6 +14,12 @@ loongarch_tcg_ss.add(files(
 ))
 loongarch_tcg_ss.add(zlib)
 
+loongarch_softmmu_ss = ss.source_set()
+loongarch_softmmu_ss.add(files(
+  'machine.c',
+))
+
 loongarch_ss.add_all(when: 'CONFIG_TCG', if_true: [loongarch_tcg_ss])
 
 target_arch += {'loongarch': loongarch_ss}
+target_softmmu_arch += {'loongarch': loongarch_softmmu_ss}
-- 
2.27.0