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KVM: s390: convert pfault code

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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>
This commit is contained in:
Heiko Carstens 2014-01-01 16:36:07 +01:00 committed by Christian Borntraeger
parent 0f9701c6c2
commit 81480cc19c
2 changed files with 7 additions and 7 deletions
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9
arch/s390/kvm/diag.c
View File

@ -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;

5
arch/s390/kvm/kvm-s390.c
View File

@ -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);