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| author | Heiko Carstens <heiko.carstens@de.ibm.com> | 2014-01-01 16:36:07 +0100 |
|---|---|---|
| committer | Christian Borntraeger <borntraeger@de.ibm.com> | 2014-04-22 13:24:40 +0200 |
| commit | 81480cc19c56efb573c63d89c46797d34fe58f27 (patch) | |
| tree | b8a70fa523d97fd914629317325e32c5ba5299d2 /arch/s390/kvm | |
| parent | 0f9701c6c2b39588971f4634dfcb10199941ce7a (diff) | |
| download | blackbird-op-linux-81480cc19c56efb573c63d89c46797d34fe58f27.tar.gz blackbird-op-linux-81480cc19c56efb573c63d89c46797d34fe58f27.zip | |
KVM: s390: convert pfault code
Convert pfault code to new guest access functions.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Reviewed-by: Dominik Dingel <dingel@linux.vnet.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Diffstat (limited to 'arch/s390/kvm')
| -rw-r--r-- | arch/s390/kvm/diag.c | 9 | ||||
| -rw-r--r-- | arch/s390/kvm/kvm-s390.c | 5 |
2 files changed, 7 insertions, 7 deletions
diff --git a/arch/s390/kvm/diag.c b/arch/s390/kvm/diag.c index ff768f1dd337..5521ace8b60d 100644 --- a/arch/s390/kvm/diag.c +++ b/arch/s390/kvm/diag.c @@ -64,12 +64,12 @@ static int __diag_page_ref_service(struct kvm_vcpu *vcpu) int rc; u16 rx = (vcpu->arch.sie_block->ipa & 0xf0) >> 4; u16 ry = (vcpu->arch.sie_block->ipa & 0x0f); - unsigned long hva_token = KVM_HVA_ERR_BAD; if (vcpu->run->s.regs.gprs[rx] & 7) return kvm_s390_inject_program_int(vcpu, PGM_SPECIFICATION); - if (copy_from_guest(vcpu, &parm, vcpu->run->s.regs.gprs[rx], sizeof(parm))) - return kvm_s390_inject_program_int(vcpu, PGM_ADDRESSING); + rc = read_guest(vcpu, vcpu->run->s.regs.gprs[rx], &parm, sizeof(parm)); + if (rc) + return kvm_s390_inject_prog_cond(vcpu, rc); if (parm.parm_version != 2 || parm.parm_len < 5 || parm.code != 0x258) return kvm_s390_inject_program_int(vcpu, PGM_SPECIFICATION); @@ -89,8 +89,7 @@ static int __diag_page_ref_service(struct kvm_vcpu *vcpu) parm.token_addr & 7 || parm.zarch != 0x8000000000000000ULL) return kvm_s390_inject_program_int(vcpu, PGM_SPECIFICATION); - hva_token = gfn_to_hva(vcpu->kvm, gpa_to_gfn(parm.token_addr)); - if (kvm_is_error_hva(hva_token)) + if (kvm_is_error_gpa(vcpu->kvm, parm.token_addr)) return kvm_s390_inject_program_int(vcpu, PGM_ADDRESSING); vcpu->arch.pfault_token = parm.token_addr; diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c index e1dfe2461d4b..6cee19c7ad74 100644 --- a/arch/s390/kvm/kvm-s390.c +++ b/arch/s390/kvm/kvm-s390.c @@ -1058,8 +1058,9 @@ static int kvm_arch_setup_async_pf(struct kvm_vcpu *vcpu) if (!vcpu->arch.gmap->pfault_enabled) return 0; - hva = gmap_fault(current->thread.gmap_addr, vcpu->arch.gmap); - if (copy_from_guest(vcpu, &arch.pfault_token, vcpu->arch.pfault_token, 8)) + hva = gfn_to_hva(vcpu->kvm, gpa_to_gfn(current->thread.gmap_addr)); + hva += current->thread.gmap_addr & ~PAGE_MASK; + if (read_guest_real(vcpu, vcpu->arch.pfault_token, &arch.pfault_token, 8)) return 0; rc = kvm_setup_async_pf(vcpu, current->thread.gmap_addr, hva, &arch); |
