target/ppc: Restrict KVM-specific fields from ArchCPU

The 'kvm_sw_tlb' and 'tlb_dirty' fields introduced in commit 93dd5e8 ("kvm: ppc: booke206: use MMU API") are specific to KVM and shouldn't be accessed when it is not available. Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Nicholas Piggin <npiggin@gmail.com> Message-Id: <20230624192645.13680-1-philmd@linaro.org>
qemu · Jun 28, 2023 · 0573997 · 0573997
1 parent cf43b5b
commit 0573997
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diff --git a/hw/ppc/e500.c b/hw/ppc/e500.c
@@ -765,7 +765,9 @@ static void mmubooke_create_initial_mapping(CPUPPCState *env)
     tlb->mas7_3 = 0;
     tlb->mas7_3 |= MAS3_UR | MAS3_UW | MAS3_UX | MAS3_SR | MAS3_SW | MAS3_SX;
 
+#ifdef CONFIG_KVM
     env->tlb_dirty = true;
+#endif
 }
 
 static void ppce500_cpu_reset_sec(void *opaque)

diff --git a/hw/ppc/ppce500_spin.c b/hw/ppc/ppce500_spin.c
@@ -83,7 +83,9 @@ static void mmubooke_create_initial_mapping(CPUPPCState *env,
     tlb->mas2 = (va & TARGET_PAGE_MASK) | MAS2_M;
     tlb->mas7_3 = pa & TARGET_PAGE_MASK;
     tlb->mas7_3 |= MAS3_UR | MAS3_UW | MAS3_UX | MAS3_SR | MAS3_SW | MAS3_SX;
+#ifdef CONFIG_KVM
     env->tlb_dirty = true;
+#endif
 }
 
 static void spin_kick(CPUState *cs, run_on_cpu_data data)

diff --git a/target/ppc/cpu.h b/target/ppc/cpu.h
@@ -1149,8 +1149,10 @@ struct CPUArchState {
     int nb_pids;     /* Number of available PID registers */
     int tlb_type;    /* Type of TLB we're dealing with */
     ppc_tlb_t tlb;   /* TLB is optional. Allocate them only if needed */
+#ifdef CONFIG_KVM
     bool tlb_dirty;  /* Set to non-zero when modifying TLB */
     bool kvm_sw_tlb; /* non-zero if KVM SW TLB API is active */
+#endif /* CONFIG_KVM */
     uint32_t tlb_need_flush; /* Delayed flush needed */
 #define TLB_NEED_LOCAL_FLUSH   0x1
 #define TLB_NEED_GLOBAL_FLUSH  0x2

diff --git a/target/ppc/mmu_common.c b/target/ppc/mmu_common.c
@@ -930,10 +930,12 @@ static void mmubooke_dump_mmu(CPUPPCState *env)
     ppcemb_tlb_t *entry;
     int i;
 
+#ifdef CONFIG_KVM
     if (kvm_enabled() && !env->kvm_sw_tlb) {
         qemu_printf("Cannot access KVM TLB\n");
         return;
     }
+#endif
 
     qemu_printf("\nTLB:\n");
     qemu_printf("Effective          Physical           Size PID   Prot     "
@@ -1021,10 +1023,12 @@ static void mmubooke206_dump_mmu(CPUPPCState *env)
     int offset = 0;
     int i;
 
+#ifdef CONFIG_KVM
     if (kvm_enabled() && !env->kvm_sw_tlb) {
         qemu_printf("Cannot access KVM TLB\n");
         return;
     }
+#endif
 
     for (i = 0; i < BOOKE206_MAX_TLBN; i++) {
         int size = booke206_tlb_size(env, i);