Merge tag 'qtest-20250117-pull-request' of https://gitlab.com/farosas/qemu into staging

Qtest pull request

- RISCV CSR test
- migration recover changed to OOB
- removal of dead code in test-x86-cpuid-compat

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* tag 'qtest-20250117-pull-request' of https://gitlab.com/farosas/qemu:
  tests/qtest/test-x86-cpuid-compat: Remove tests related to pc-i440fx-2.3
  tests/qtest/migration: Use out-of-band execution for migrate-recover
  tests/qtest: Introduce qtest_init_with_env_and_capabilities()
  tests/qtest: QTest example for RISC-V CSR register
  target/riscv: Add RISC-V CSR qtest support

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>

1 files changed, 55 insertions, 0 deletions

diff --git a/hw/riscv/riscv_hart.c b/hw/riscv/riscv_hart.c
index bc9ffdd2d4..5d64271718 100644
--- a/hw/riscv/riscv_hart.c
+++ b/hw/riscv/riscv_hart.c
@@ -22,6 +22,8 @@
 #include "qapi/error.h"
 #include "qemu/module.h"
 #include "system/reset.h"
+#include "system/qtest.h"
+#include "qemu/cutils.h"
 #include "hw/sysbus.h"
 #include "target/riscv/cpu.h"
 #include "hw/qdev-properties.h"
@@ -41,6 +43,55 @@ static void riscv_harts_cpu_reset(void *opaque)
     cpu_reset(CPU(cpu));
 }
 
+#ifndef CONFIG_USER_ONLY
+static void csr_call(char *cmd, uint64_t cpu_num, int csrno, uint64_t *val)
+{
+    RISCVCPU *cpu = RISCV_CPU(cpu_by_arch_id(cpu_num));
+    CPURISCVState *env = &cpu->env;
+
+    int ret = RISCV_EXCP_NONE;
+    if (strcmp(cmd, "get_csr") == 0) {
+        ret = riscv_csrr(env, csrno, (target_ulong *)val);
+    } else if (strcmp(cmd, "set_csr") == 0) {
+        ret = riscv_csrrw(env, csrno, NULL, *(target_ulong *)val,
+                MAKE_64BIT_MASK(0, TARGET_LONG_BITS));
+    }
+
+    g_assert(ret == RISCV_EXCP_NONE);
+}
+
+static bool csr_qtest_callback(CharBackend *chr, gchar **words)
+{
+    if (strcmp(words[0], "csr") == 0) {
+
+        uint64_t cpu;
+        uint64_t val;
+        int rc, csr;
+
+        rc = qemu_strtou64(words[2], NULL, 0, &cpu);
+        g_assert(rc == 0);
+        rc = qemu_strtoi(words[3], NULL, 0, &csr);
+        g_assert(rc == 0);
+        rc = qemu_strtou64(words[4], NULL, 0, &val);
+        g_assert(rc == 0);
+        csr_call(words[1], cpu, csr, &val);
+
+        qtest_send_prefix(chr);
+        qtest_sendf(chr, "OK 0 "TARGET_FMT_lx"\n", (target_ulong)val);
+
+        return true;
+    }
+
+    return false;
+}
+
+static void riscv_cpu_register_csr_qtest_callback(void)
+{
+    static GOnce once;
+    g_once(&once, (GThreadFunc)qtest_set_command_cb, csr_qtest_callback);
+}
+#endif
+
 static bool riscv_hart_realize(RISCVHartArrayState *s, int idx,
                                char *cpu_type, Error **errp)
 {
@@ -58,6 +109,10 @@ static void riscv_harts_realize(DeviceState *dev, Error **errp)
 
     s->harts = g_new0(RISCVCPU, s->num_harts);
 
+#ifndef CONFIG_USER_ONLY
+    riscv_cpu_register_csr_qtest_callback();
+#endif
+
     for (n = 0; n < s->num_harts; n++) {
         if (!riscv_hart_realize(s, n, s->cpu_type, errp)) {
             return;