From: Philippe Mathieu-Daudé <philmd@linaro.org>
Date: Sun, 12 Jan 2025 20:01:24 +0000 (+0100)
Subject: hw/mips/loongson3_virt: Invert vCPU creation order to remove &first_cpu
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=2bf8545603e3388c33745b41dc797fef7b2224aa;p=qemu.git

hw/mips/loongson3_virt: Invert vCPU creation order to remove &first_cpu

Create vCPUs from the last one to the first one.
No need to use the &first_cpu global since we already
have it referenced.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20250115232952.31166-3-philmd@linaro.org>
---

diff --git a/hw/mips/loongson3_virt.c b/hw/mips/loongson3_virt.c
index 47d112981a..28d4eaf1e5 100644
--- a/hw/mips/loongson3_virt.c
+++ b/hw/mips/loongson3_virt.c
@@ -492,9 +492,8 @@ static void mips_loongson3_virt_init(MachineState *machine)
 {
     int i;
     long bios_size;
-    MIPSCPU *cpu;
+    MIPSCPU *cpu = NULL;
     Clock *cpuclk;
-    CPUMIPSState *env;
     DeviceState *liointc;
     DeviceState *ipi = NULL;
     char *filename;
@@ -569,7 +568,7 @@ static void mips_loongson3_virt_init(MachineState *machine)
     cpuclk = clock_new(OBJECT(machine), "cpu-refclk");
     clock_set_hz(cpuclk, DEF_LOONGSON3_FREQ);
 
-    for (i = 0; i < machine->smp.cpus; i++) {
+    for (i = machine->smp.cpus - 1; i >= 0; --i) {
         int node = i / LOONGSON3_CORE_PER_NODE;
         int core = i % LOONGSON3_CORE_PER_NODE;
         int ip;
@@ -609,7 +608,7 @@ static void mips_loongson3_virt_init(MachineState *machine)
                                pin, cpu->env.irq[ip + 2]);
         }
     }
-    env = &MIPS_CPU(first_cpu)->env;
+    assert(cpu); /* This variable points to the first created cpu. */
 
     /* Allocate RAM/BIOS, 0x00000000~0x10000000 is alias of 0x80000000~0x90000000 */
     memory_region_init_rom(bios, NULL, "loongson3.bios",
@@ -640,7 +639,7 @@ static void mips_loongson3_virt_init(MachineState *machine)
         loaderparams.kernel_filename = kernel_filename;
         loaderparams.kernel_cmdline = kernel_cmdline;
         loaderparams.initrd_filename = initrd_filename;
-        loaderparams.kernel_entry = load_kernel(env);
+        loaderparams.kernel_entry = load_kernel(&cpu->env);
 
         init_boot_rom();
         init_boot_param();