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KVM: ppc: turn tlb_xlate() into a per-core hook (and give it a better name) 

Signed-off-by: Hollis Blanchard <hollisb@us.ibm.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
This commit is contained in:
Hollis Blanchard 2009-01-03 16:23:02 -06:00 committed by Avi Kivity
parent 58a96214a3
commit be8d1cae07
5 changed files with 15 additions and 20 deletions
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2
arch/powerpc/include/asm/kvm_ppc.h
View File

@ -59,6 +59,8 @@ extern void kvmppc_mmu_map(struct kvm_vcpu *vcpu, u64 gvaddr, gpa_t gpaddr,
extern void kvmppc_mmu_priv_switch(struct kvm_vcpu *vcpu, int usermode);
extern void kvmppc_mmu_switch_pid(struct kvm_vcpu *vcpu, u32 pid);
extern void kvmppc_mmu_destroy(struct kvm_vcpu *vcpu);
extern gpa_t kvmppc_mmu_xlate(struct kvm_vcpu *vcpu, unsigned int gtlb_index,
gva_t eaddr);
extern struct kvm_vcpu *kvmppc_core_vcpu_create(struct kvm *kvm,
unsigned int id);

6
arch/powerpc/kvm/44x.c
View File

@ -149,8 +149,6 @@ int kvmppc_core_vcpu_setup(struct kvm_vcpu *vcpu)
int kvmppc_core_vcpu_translate(struct kvm_vcpu *vcpu,
struct kvm_translation *tr)
{
struct kvmppc_vcpu_44x *vcpu_44x = to_44x(vcpu);
struct kvmppc_44x_tlbe *gtlbe;
int index;
gva_t eaddr;
u8 pid;
@ -166,9 +164,7 @@ int kvmppc_core_vcpu_translate(struct kvm_vcpu *vcpu,
return 0;
}
gtlbe = &vcpu_44x->guest_tlb[index];
tr->physical_address = tlb_xlate(gtlbe, eaddr);
tr->physical_address = kvmppc_mmu_xlate(vcpu, index, eaddr);
/* XXX what does "writeable" and "usermode" even mean? */
tr->valid = 1;

10
arch/powerpc/kvm/44x_tlb.c
View File

@ -208,6 +208,16 @@ int kvmppc_44x_tlb_index(struct kvm_vcpu *vcpu, gva_t eaddr, unsigned int pid,
return -1;
}
gpa_t kvmppc_mmu_xlate(struct kvm_vcpu *vcpu, unsigned int gtlb_index,
gva_t eaddr)
{
struct kvmppc_vcpu_44x *vcpu_44x = to_44x(vcpu);
struct kvmppc_44x_tlbe *gtlbe = &vcpu_44x->guest_tlb[gtlb_index];
unsigned int pgmask = get_tlb_bytes(gtlbe) - 1;
return get_tlb_raddr(gtlbe) | (eaddr & pgmask);
}
int kvmppc_44x_itlb_index(struct kvm_vcpu *vcpu, gva_t eaddr)
{
unsigned int as = !!(vcpu->arch.msr & MSR_IS);

7
arch/powerpc/kvm/44x_tlb.h
View File

@ -85,11 +85,4 @@ static inline unsigned int get_mmucr_sts(const struct kvm_vcpu *vcpu)
return (vcpu->arch.mmucr >> 16) & 0x1;
}
static inline gpa_t tlb_xlate(struct kvmppc_44x_tlbe *tlbe, gva_t eaddr)
{
unsigned int pgmask = get_tlb_bytes(tlbe) - 1;
return get_tlb_raddr(tlbe) | (eaddr & pgmask);
}
#endif /* __KVM_POWERPC_TLB_H__ */

10
arch/powerpc/kvm/booke.c
View File

@ -286,8 +286,6 @@ int kvmppc_handle_exit(struct kvm_run *run, struct kvm_vcpu *vcpu,
/* XXX move to a 440-specific file. */
case BOOKE_INTERRUPT_DTLB_MISS: {
struct kvmppc_vcpu_44x *vcpu_44x = to_44x(vcpu);
struct kvmppc_44x_tlbe *gtlbe;
unsigned long eaddr = vcpu->arch.fault_dear;
int gtlb_index;
gpa_t gpaddr;
@ -305,8 +303,7 @@ int kvmppc_handle_exit(struct kvm_run *run, struct kvm_vcpu *vcpu,
break;
}
gtlbe = &vcpu_44x->guest_tlb[gtlb_index];
gpaddr = tlb_xlate(gtlbe, eaddr);
gpaddr = kvmppc_mmu_xlate(vcpu, gtlb_index, eaddr);
gfn = gpaddr >> PAGE_SHIFT;
if (kvm_is_visible_gfn(vcpu->kvm, gfn)) {
@ -332,8 +329,6 @@ int kvmppc_handle_exit(struct kvm_run *run, struct kvm_vcpu *vcpu,
/* XXX move to a 440-specific file. */
case BOOKE_INTERRUPT_ITLB_MISS: {
struct kvmppc_vcpu_44x *vcpu_44x = to_44x(vcpu);
struct kvmppc_44x_tlbe *gtlbe;
unsigned long eaddr = vcpu->arch.pc;
gpa_t gpaddr;
gfn_t gfn;
@ -352,8 +347,7 @@ int kvmppc_handle_exit(struct kvm_run *run, struct kvm_vcpu *vcpu,
kvmppc_account_exit(vcpu, ITLB_VIRT_MISS_EXITS);
gtlbe = &vcpu_44x->guest_tlb[gtlb_index];
gpaddr = tlb_xlate(gtlbe, eaddr);
gpaddr = kvmppc_mmu_xlate(vcpu, gtlb_index, eaddr);
gfn = gpaddr >> PAGE_SHIFT;
if (kvm_is_visible_gfn(vcpu->kvm, gfn)) {