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[PATCH for-7.1 v6 27/51] target/nios2: Implement cpuid
From: |
Richard Henderson |
Subject: |
[PATCH for-7.1 v6 27/51] target/nios2: Implement cpuid |
Date: |
Wed, 16 Mar 2022 22:05:14 -0700 |
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>
---
target/nios2/cpu.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/target/nios2/cpu.c b/target/nios2/cpu.c
index 8189937857..2f1f5e35aa 100644
--- a/target/nios2/cpu.c
+++ b/target/nios2/cpu.c
@@ -168,6 +168,7 @@ static void realize_cr_status(CPUState *cs)
static void nios2_cpu_realizefn(DeviceState *dev, Error **errp)
{
CPUState *cs = CPU(dev);
+ Nios2CPU *cpu = NIOS2_CPU(cs);
Nios2CPUClass *ncc = NIOS2_CPU_GET_CLASS(dev);
Error *local_err = NULL;
@@ -181,6 +182,9 @@ static void nios2_cpu_realizefn(DeviceState *dev, Error
**errp)
qemu_init_vcpu(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);
}
--
2.25.1
- Re: [PATCH for-7.1 v6 21/51] target/nios2: Clean up nios2_cpu_do_interrupt, (continued)
- [PATCH for-7.1 v6 23/51] target/nios2: Handle EXCP_UNALIGN and EXCP_UALIGND, Richard Henderson, 2022/03/17
- [PATCH for-7.1 v6 25/51] target/nios2: Clean up handling of tlbmisc in do_exception, Richard Henderson, 2022/03/17
- [PATCH for-7.1 v6 29/51] target/nios2: Remove CPU_INTERRUPT_NMI, Richard Henderson, 2022/03/17
- [PATCH for-7.1 v6 24/51] target/nios2: Cleanup set of CR_EXCEPTION for do_interrupt, Richard Henderson, 2022/03/17
- [PATCH for-7.1 v6 27/51] target/nios2: Implement cpuid,
Richard Henderson <=
- [PATCH for-7.1 v6 31/51] target/nios2: Use tcg_constant_tl, Richard Henderson, 2022/03/17
- [PATCH for-7.1 v6 32/51] target/nios2: Introduce dest_gpr, Richard Henderson, 2022/03/17
- [PATCH for-7.1 v6 37/51] target/nios2: Use gen_goto_tb for DISAS_TOO_MANY, Richard Henderson, 2022/03/17
- [PATCH for-7.1 v6 26/51] target/nios2: Prevent writes to read-only or reserved control fields, Richard Henderson, 2022/03/17
- [PATCH for-7.1 v6 33/51] target/nios2: Drop CR_STATUS_EH from tb->flags, Richard Henderson, 2022/03/17
- [PATCH for-7.1 v6 28/51] target/nios2: Implement CR_STATUS.RSIE, Richard Henderson, 2022/03/17
- [PATCH for-7.1 v6 30/51] target/nios2: Support division error exception, Richard Henderson, 2022/03/17