diff options
| author | Heiko Carstens <heiko.carstens@de.ibm.com> | 2013-03-05 12:14:44 (GMT) |
|---|---|---|
| committer | Marcelo Tosatti <mtosatti@redhat.com> | 2013-03-07 19:21:21 (GMT) |
| commit | 396083a964aa4e86061d0e3449b1e0548a8197a9 (patch) | |
| tree | 1f0185c6fe56964a4eaaa96ba9c3eac6e32934ff /arch/s390/kvm/intercept.c | |
| parent | dc5008b9bf6adb0c0a5afba6fb376a85451b2697 (diff) | |
| download | linux-396083a964aa4e86061d0e3449b1e0548a8197a9.tar.xz | |
s390/kvm,gaccess: shorten put/get_guest code
The put_guest_u*/get_guest_u* are nothing but wrappers for the regular
put_user/get_user uaccess functions. The only difference is that before
accessing user space the guest address must be translated to a user space
address.
Change the order of arguments for the guest access functions so they
match their uaccess parts. Also remove the u* suffix, so we simply
have put_guest/get_guest which will automatically use the right size
dependent on pointer type of the destination/source that now must be
correct.
In result the same behaviour as put_user/get_user except that accesses
must be aligned.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Acked-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Diffstat (limited to 'arch/s390/kvm/intercept.c')
| -rw-r--r-- | arch/s390/kvm/intercept.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/arch/s390/kvm/intercept.c b/arch/s390/kvm/intercept.c index 9b22047..6474400 100644 --- a/arch/s390/kvm/intercept.c +++ b/arch/s390/kvm/intercept.c @@ -43,8 +43,8 @@ static int handle_lctlg(struct kvm_vcpu *vcpu) trace_kvm_s390_handle_lctl(vcpu, 1, reg1, reg3, useraddr); do { - rc = get_guest_u64(vcpu, useraddr, - &vcpu->arch.sie_block->gcr[reg]); + rc = get_guest(vcpu, vcpu->arch.sie_block->gcr[reg], + (u64 *) useraddr); if (rc) { kvm_s390_inject_program_int(vcpu, PGM_ADDRESSING); break; @@ -78,7 +78,7 @@ static int handle_lctl(struct kvm_vcpu *vcpu) reg = reg1; do { - rc = get_guest_u32(vcpu, useraddr, &val); + rc = get_guest(vcpu, val, (u32 *) useraddr); if (rc) { kvm_s390_inject_program_int(vcpu, PGM_ADDRESSING); break; |