cpu: Make first_cpu and next_cpu CPUState

Move next_cpu from CPU_COMMON to CPUState.
Move first_cpu variable to qom/cpu.h.

gdbstub needs to use CPUState::env_ptr for now.
cpu_copy() no longer needs to save and restore cpu_next.

Acked-by: Paolo Bonzini <pbonzini@redhat.com>
[AF: Rebased, simplified cpu_copy()]
Signed-off-by: Andreas Färber <afaerber@suse.de>

1 files changed, 3 insertions, 1 deletions

diff --git a/cputlb.c b/cputlb.c
index 828007ccc0..977c0ca59d 100644
--- a/cputlb.c
+++ b/cputlb.c
@@ -186,11 +186,13 @@ static inline void tlb_update_dirty(CPUTLBEntry *tlb_entry)
 
 void cpu_tlb_reset_dirty_all(ram_addr_t start1, ram_addr_t length)
 {
+    CPUState *cpu;
     CPUArchState *env;
 
-    for (env = first_cpu; env != NULL; env = env->next_cpu) {
+    for (cpu = first_cpu; cpu != NULL; cpu = cpu->next_cpu) {
         int mmu_idx;
 
+        env = cpu->env_ptr;
         for (mmu_idx = 0; mmu_idx < NB_MMU_MODES; mmu_idx++) {
             unsigned int i;