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target/nios2: Implement cpuid

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Copy the existing cpu_index into the space reserved for CR_CPUID.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20220421151735.31996-39-richard.henderson@linaro.org>
This commit is contained in:
Richard Henderson 2022-04-21 08:17:09 -07:00
parent 796945d596
commit b05550af11
1 changed files with 4 additions and 0 deletions
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target/nios2/cpu.c
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@ -163,6 +163,7 @@ static void realize_cr_status(CPUState *cs)
static void nios2_cpu_realizefn(DeviceState *dev, Error **errp) static void nios2_cpu_realizefn(DeviceState *dev, Error **errp)
{ {
CPUState *cs = CPU(dev); CPUState *cs = CPU(dev);
Nios2CPU *cpu = NIOS2_CPU(cs);
Nios2CPUClass *ncc = NIOS2_CPU_GET_CLASS(dev); Nios2CPUClass *ncc = NIOS2_CPU_GET_CLASS(dev);
Error *local_err = NULL; Error *local_err = NULL;
@ -176,6 +177,9 @@ static void nios2_cpu_realizefn(DeviceState *dev, Error **errp)
qemu_init_vcpu(cs); qemu_init_vcpu(cs);
cpu_reset(cs); cpu_reset(cs);
/* We have reserved storage for cpuid; might as well use it. */
cpu->env.ctrl[CR_CPUID] = cs->cpu_index;
ncc->parent_realize(dev, errp); ncc->parent_realize(dev, errp);
} }