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Commit 3e3c67f6 authored by David Hildenbrand's avatar David Hildenbrand Committed by Christian Borntraeger
Browse files

KVM: s390: gaccess: convert kvm_s390_check_low_addr_prot_real() 



Let's use our new function for preparing translation exceptions.

Signed-off-by: default avatarDavid Hildenbrand <dahi@linux.vnet.ibm.com>
Signed-off-by: default avatarChristian Borntraeger <borntraeger@de.ibm.com>
parent d03193de

arch/s390/kvm/gaccess.c

+1 −12
Original line number Diff line number Diff line
@@ -979,20 +979,9 @@ int check_gva_range(struct kvm_vcpu *vcpu, unsigned long gva, ar_t ar, 
 */

int kvm_s390_check_low_addr_prot_real(struct kvm_vcpu *vcpu, unsigned long gra)

{

	struct kvm_s390_pgm_info *pgm = &vcpu->arch.pgm;

	psw_t *psw = &vcpu->arch.sie_block->gpsw;

	struct trans_exc_code_bits *tec_bits;

	union ctlreg0 ctlreg0 = {.val = vcpu->arch.sie_block->gcr[0]};



	if (!ctlreg0.lap || !is_low_address(gra))

		return 0;



	memset(pgm, 0, sizeof(*pgm));

	tec_bits = (struct trans_exc_code_bits *)&pgm->trans_exc_code;

	tec_bits->fsi = FSI_STORE;

	tec_bits->as = psw_bits(*psw).as;

	tec_bits->addr = gra >> PAGE_SHIFT;

	pgm->code = PGM_PROTECTION;



	return pgm->code;

	return trans_exc(vcpu, PGM_PROTECTION, gra, 0, GACC_STORE, PROT_TYPE_LA);

}