Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit e497a96a authored by Heiko Carstens's avatar Heiko Carstens Committed by Christian Borntraeger
Browse files

KVM: s390: cleanup kvm_s390_real_to_abs() 



Add kerneldoc comment to kvm_s390_real_to_abs() and change the code
so it matches the coding style of the rest of gaccess.h.

Signed-off-by: default avatarHeiko Carstens <heiko.carstens@de.ibm.com>
Reviewed-by: default avatarThomas Huth <thuth@linux.vnet.ibm.com>
Signed-off-by: default avatarChristian Borntraeger <borntraeger@de.ibm.com>
parent 3263bd16

arch/s390/kvm/gaccess.h

+16 −8
Original line number Diff line number Diff line
@@ -19,16 +19,24 @@ 
#include <linux/ptrace.h>

#include "kvm-s390.h"



/* Convert real to absolute address by applying the prefix of the CPU */

/**

 * kvm_s390_real_to_abs - convert guest real address to guest absolute address

 * @vcpu - guest virtual cpu

 * @gra - guest real address

 *

 * Returns the guest absolute address that corresponds to the passed guest real

 * address @gra of a virtual guest cpu by applying its prefix.

 */

static inline unsigned long kvm_s390_real_to_abs(struct kvm_vcpu *vcpu,

						 unsigned long gaddr)

						 unsigned long gra)

{

	unsigned long prefix = vcpu->arch.sie_block->prefix;

	if (gaddr < 2 * PAGE_SIZE)

		gaddr += prefix;

	else if (gaddr >= prefix && gaddr < prefix + 2 * PAGE_SIZE)

		gaddr -= prefix;

	return gaddr;



	if (gra < 2 * PAGE_SIZE)

		gra += prefix;

	else if (gra >= prefix && gra < prefix + 2 * PAGE_SIZE)

		gra -= prefix;

	return gra;

}



/**