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[PATCH v5 27/48] target/nios2: Implement cpuid
From: |
Richard Henderson |
Subject: |
[PATCH v5 27/48] target/nios2: Implement cpuid |
Date: |
Thu, 10 Mar 2022 03:27:04 -0800 |
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 ce2b0c6493..d491360973 100644
--- a/target/nios2/cpu.c
+++ b/target/nios2/cpu.c
@@ -163,6 +163,7 @@ static ObjectClass *nios2_cpu_class_by_name(const char
*cpu_model)
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;
@@ -175,6 +176,9 @@ 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
- [PATCH v5 16/48] target/nios2: Use hw/registerfields.h for CR_TLBACC fields, (continued)
- [PATCH v5 16/48] target/nios2: Use hw/registerfields.h for CR_TLBACC fields, Richard Henderson, 2022/03/10
- [PATCH v5 19/48] target/nios2: Move R_FOO and CR_BAR into enumerations, Richard Henderson, 2022/03/10
- [PATCH v5 20/48] target/nios2: Create EXCP_SEMIHOST for semi-hosting, Richard Henderson, 2022/03/10
- [PATCH v5 21/48] target/nios2: Clean up nios2_cpu_do_interrupt, Richard Henderson, 2022/03/10
- [PATCH v5 18/48] target/nios2: Use hw/registerfields.h for CR_TLBMISC fields, Richard Henderson, 2022/03/10
- [PATCH v5 23/48] target/nios2: Handle EXCP_UNALIGN and EXCP_UALIGND, Richard Henderson, 2022/03/10
- [PATCH v5 22/48] target/nios2: Hoist CPU_LOG_INT logging, Richard Henderson, 2022/03/10
- [PATCH v5 25/48] target/nios2: Clean up handling of tlbmisc in do_exception, Richard Henderson, 2022/03/10
- [PATCH v5 24/48] target/nios2: Cleanup set of CR_EXCEPTION for do_interrupt, Richard Henderson, 2022/03/10
- [PATCH v5 26/48] target/nios2: Prevent writes to read-only or reserved control fields, Richard Henderson, 2022/03/10
- [PATCH v5 27/48] target/nios2: Implement cpuid,
Richard Henderson <=
- [PATCH v5 29/48] target/nios2: Remove CPU_INTERRUPT_NMI, Richard Henderson, 2022/03/10
- [PATCH v5 30/48] target/nios2: Support division error exception, Richard Henderson, 2022/03/10
- [PATCH v5 28/48] target/nios2: Implement CR_STATUS.RSIE, Richard Henderson, 2022/03/10
- [PATCH v5 33/48] target/nios2: Drop CR_STATUS_EH from tb->flags, Richard Henderson, 2022/03/10
- [PATCH v5 32/48] target/nios2: Introduce dest_gpr, Richard Henderson, 2022/03/10
- [PATCH v5 34/48] target/nios2: Enable unaligned traps for system mode, Richard Henderson, 2022/03/10
- [PATCH v5 38/48] target/nios2: Use tcg_gen_lookup_and_goto_ptr, Richard Henderson, 2022/03/10
- [PATCH v5 31/48] target/nios2: Use tcg_constant_tl, Richard Henderson, 2022/03/10
- [PATCH v5 35/48] target/nios2: Create gen_jumpr, Richard Henderson, 2022/03/10
- [PATCH v5 37/48] target/nios2: Use gen_goto_tb for DISAS_TOO_MANY, Richard Henderson, 2022/03/10