xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

KVM: PPC: Implement kvmppc_xlate for all targets

Browse Source 
We have a nice API to find the translated GPAs of a GVA including protection
flags. So far we only use it on Book3S, but there's no reason the same shouldn't
be used on BookE as well.

Implement a kvmppc_xlate() version for BookE and clean it up to make it more
readable in general.

Signed-off-by: Alexander Graf <agraf@suse.de>
This commit is contained in:
Alexander Graf
2014-06-20 13:52:36 +02:00
parent 63fff5c1e3
commit 7d15c06f1a
3 changed files with 72 additions and 4 deletions
Download Patch File Download Diff File Expand all files Collapse all files

12
arch/powerpc/kvm/book3s.c
View File

@@ -380,9 +380,11 @@ pfn_t kvmppc_gpa_to_pfn(struct kvm_vcpu *vcpu, gpa_t gpa, bool writing,
}
EXPORT_SYMBOL_GPL(kvmppc_gpa_to_pfn);
static int kvmppc_xlate(struct kvm_vcpu *vcpu, ulong eaddr, bool data,
bool iswrite, struct kvmppc_pte *pte)
int kvmppc_xlate(struct kvm_vcpu *vcpu, ulong eaddr, enum xlate_instdata xlid,
enum xlate_readwrite xlrw, struct kvmppc_pte *pte)
{
bool data = (xlid == XLATE_DATA);
bool iswrite = (xlrw == XLATE_WRITE);
int relocated = (kvmppc_get_msr(vcpu) & (data ? MSR_DR : MSR_IR));
int r;
@@ -434,7 +436,8 @@ int kvmppc_st(struct kvm_vcpu *vcpu, ulong *eaddr, int size, void *ptr,
vcpu->stat.st++;
r = kvmppc_xlate(vcpu, *eaddr, data, true, &pte);
r = kvmppc_xlate(vcpu, *eaddr, data ? XLATE_DATA : XLATE_INST,
XLATE_WRITE, &pte);
if (r < 0)
return r;
@@ -459,7 +462,8 @@ int kvmppc_ld(struct kvm_vcpu *vcpu, ulong *eaddr, int size, void *ptr,
vcpu->stat.ld++;
rc = kvmppc_xlate(vcpu, *eaddr, data, false, &pte);
rc = kvmppc_xlate(vcpu, *eaddr, data ? XLATE_DATA : XLATE_INST,
XLATE_READ, &pte);
if (rc)
return rc;