4 files changed, 34 insertions, 3 deletions

diff --git a/arch/powerpc/kvm/book3s.c b/arch/powerpc/kvm/book3s.c
index f8ac26599f6d..61ae0faf0d24 100644
--- a/arch/powerpc/kvm/book3s.c
+++ b/arch/powerpc/kvm/book3s.c
@@ -40,6 +40,13 @@
 static int kvmppc_handle_ext(struct kvm_vcpu *vcpu, unsigned int exit_nr,
                              ulong msr);
 
+/* Some compatibility defines */
+#ifdef CONFIG_PPC_BOOK3S_32
+#define MSR_USER32 MSR_USER
+#define MSR_USER64 MSR_USER
+#define HW_PAGE_SIZE PAGE_SIZE
+#endif
+
 struct kvm_stats_debugfs_item debugfs_entries[] = {
         { "exits",       VCPU_STAT(sum_exits) },
         { "mmio",        VCPU_STAT(mmio_exits) },
@@ -348,11 +355,14 @@ void kvmppc_set_pvr(struct kvm_vcpu *vcpu, u32 pvr)
 {
         vcpu->arch.hflags &= ~BOOK3S_HFLAG_SLB;
         vcpu->arch.pvr = pvr;
+#ifdef CONFIG_PPC_BOOK3S_64
         if ((pvr >= 0x330000) && (pvr < 0x70330000)) {
                 kvmppc_mmu_book3s_64_init(vcpu);
                 to_book3s(vcpu)->hior = 0xfff00000;
                 to_book3s(vcpu)->msr_mask = 0xffffffffffffffffULL;
-        } else {
+        } else
+#endif
+        {
                 kvmppc_mmu_book3s_32_init(vcpu);
                 to_book3s(vcpu)->hior = 0;
                 to_book3s(vcpu)->msr_mask = 0xffffffffULL;
@@ -369,6 +379,11 @@ void kvmppc_set_pvr(struct kvm_vcpu *vcpu, u32 pvr)
            really needs them in a VM on Cell and force disable them. */
         if (!strcmp(cur_cpu_spec->platform, "ppc-cell-be"))
                 to_book3s(vcpu)->msr_mask &= ~(MSR_FE0 | MSR_FE1);
+
+#ifdef CONFIG_PPC_BOOK3S_32
+        /* 32 bit Book3S always has 32 byte dcbz */
+        vcpu->arch.hflags |= BOOK3S_HFLAG_DCBZ32;
+#endif
 }
 
 /* Book3s_32 CPUs always have 32 bytes cache line size, which Linux assumes. To
@@ -1212,8 +1227,13 @@ struct kvm_vcpu *kvmppc_core_vcpu_create(struct kvm *kvm, unsigned int id)
 
         vcpu->arch.host_retip = kvm_return_point;
         vcpu->arch.host_msr = mfmsr();
+#ifdef CONFIG_PPC_BOOK3S_64
         /* default to book3s_64 (970fx) */
         vcpu->arch.pvr = 0x3C0301;
+#else
+        /* default to book3s_32 (750) */
+        vcpu->arch.pvr = 0x84202;
+#endif
         kvmppc_set_pvr(vcpu, vcpu->arch.pvr);
         vcpu_book3s->slb_nr = 64;
 
@@ -1221,7 +1241,11 @@ struct kvm_vcpu *kvmppc_core_vcpu_create(struct kvm *kvm, unsigned int id)
         vcpu->arch.trampoline_lowmem = kvmppc_trampoline_lowmem;
         vcpu->arch.trampoline_enter = kvmppc_trampoline_enter;
         vcpu->arch.highmem_handler = (ulong)kvmppc_handler_highmem;
+#ifdef CONFIG_PPC_BOOK3S_64
         vcpu->arch.rmcall = *(ulong*)kvmppc_rmcall;
+#else
+        vcpu->arch.rmcall = (ulong)kvmppc_rmcall;
+#endif
 
         vcpu->arch.shadow_msr = MSR_USER64;
 
diff --git a/arch/powerpc/kvm/book3s_32_mmu.c b/arch/powerpc/kvm/book3s_32_mmu.c
index 7071e22b42ff..48efb37500a1 100644
--- a/arch/powerpc/kvm/book3s_32_mmu.c
+++ b/arch/powerpc/kvm/book3s_32_mmu.c
@@ -45,6 +45,9 @@
 
 #define PTEG_FLAG_ACCESSED      0x00000100
 #define PTEG_FLAG_DIRTY         0x00000080
+#ifndef SID_SHIFT
+#define SID_SHIFT               28
+#endif
 
 static inline bool check_debug_ip(struct kvm_vcpu *vcpu)
 {
diff --git a/arch/powerpc/kvm/book3s_emulate.c b/arch/powerpc/kvm/book3s_emulate.c
index daa829b8f1f1..3f7afb5f3483 100644
--- a/arch/powerpc/kvm/book3s_emulate.c
+++ b/arch/powerpc/kvm/book3s_emulate.c
@@ -59,6 +59,10 @@
 #define SPRN_GQR6               918
 #define SPRN_GQR7               919
 
+/* Book3S_32 defines mfsrin(v) - but that messes up our abstract
+ * function pointers, so let's just disable the define. */
+#undef mfsrin
+
 int kvmppc_core_emulate_op(struct kvm_run *run, struct kvm_vcpu *vcpu,
                            unsigned int inst, int *advance)
 {
diff --git a/arch/powerpc/kvm/book3s_rmhandlers.S b/arch/powerpc/kvm/book3s_rmhandlers.S
index 8a1c4bdb58b3..506d5c316c96 100644
--- a/arch/powerpc/kvm/book3s_rmhandlers.S
+++ b/arch/powerpc/kvm/book3s_rmhandlers.S
@@ -242,10 +242,10 @@ define_load_up(vsx)
 
 .global kvmppc_trampoline_lowmem
 kvmppc_trampoline_lowmem:
-        .long kvmppc_handler_lowmem_trampoline - _stext
+        .long kvmppc_handler_lowmem_trampoline - CONFIG_KERNEL_START
 
 .global kvmppc_trampoline_enter
 kvmppc_trampoline_enter:
-        .long kvmppc_handler_trampoline_enter - _stext
+        .long kvmppc_handler_trampoline_enter - CONFIG_KERNEL_START
 
 #include "book3s_segment.S"