s390/kvm/gaccess.h

1 /* SPDX-License-Identifier: GPL-2.0 */
17 #include "kvm-s390.h"
20  * kvm_s390_real_to_abs - convert guest real address to guest absolute address
21  * @prefix - guest prefix
22  * @gra - guest real address
24  * Returns the guest absolute address that corresponds to the passed guest real
32 		gra -= prefix;  in _kvm_s390_real_to_abs()
37  * kvm_s390_real_to_abs - convert guest real address to guest absolute address
38  * @vcpu - guest virtual cpu
39  * @gra - guest real address
41  * Returns the guest absolute address that corresponds to the passed guest real
51  * _kvm_s390_logical_to_effective - convert guest logical to effective address
69 		return ga & ((1UL << 31) - 1);  in _kvm_s390_logical_to_effective()
70 	return ga & ((1UL << 24) - 1);  in _kvm_s390_logical_to_effective()
74  * kvm_s390_logical_to_effective - convert guest logical to effective address
89 	return _kvm_s390_logical_to_effective(&vcpu->arch.sie_block->gpsw, ga);  in kvm_s390_logical_to_effective()
104  * put_guest_lc - write a simple variable to a guest vcpu's lowcore
107  * @gra: vcpu's destination guest real address
113  * Returns zero on success or -EFAULT on error.
128 	kvm_write_guest(__vcpu->kvm, __gpa, &__x, sizeof(__x));	\
132  * write_guest_lc - copy data from kernel space to guest vcpu's lowcore
134  * @gra: vcpu's source guest real address
141  * Returns zero on success or -EFAULT on error.
154 	return kvm_write_guest(vcpu->kvm, gpa, data, len);  in write_guest_lc()
158  * read_guest_lc - copy data from guest vcpu's lowcore to kernel space
160  * @gra: vcpu's source guest real address
167  * Returns zero on success or -EFAULT on error.
180 	return kvm_read_guest(vcpu->kvm, gpa, data, len);  in read_guest_lc()
213  * write_guest_with_key - copy data from kernel space to guest space
223  * If DAT is off data will be copied to guest real or absolute memory.
228  * around is taken into account for 24-, 31- and 64-bit addressing mode,
240  * Returns:  - zero on success
241  *	     - a negative value if e.g. the guest mapping is broken or in
242  *	       case of out-of-memory. In this case the contents of pgm are
245  *	     - a positive value if an access exception happened. In this case
267  * write_guest - copy data from kernel space to guest space
281 	u8 access_key = psw_bits(vcpu->arch.sie_block->gpsw).key;  in write_guest()
287  * read_guest_with_key - copy data from guest space to kernel space
309  * read_guest - copy data from guest space to kernel space
325 	u8 access_key = psw_bits(vcpu->arch.sie_block->gpsw).key;  in read_guest()
331  * read_guest_instr - copy instruction data from guest space to kernel space
341  * instruction data will be read from primary space when in home-space or
342  * address-space mode.
348 	u8 access_key = psw_bits(vcpu->arch.sie_block->gpsw).key;  in read_guest_instr()
355  * write_guest_abs - copy data from kernel space to guest space absolute
366  * Returns zero on success or -EFAULT on error.
374 	return kvm_write_guest(vcpu->kvm, gpa, data, len);  in write_guest_abs()
378  * read_guest_abs - copy data from guest space absolute to kernel space
389  * Returns zero on success or -EFAULT on error.
397 	return kvm_read_guest(vcpu->kvm, gpa, data, len);  in read_guest_abs()
401  * write_guest_real - copy data from kernel space to guest space real
403  * @gra: guest real address
407  * Copy @len bytes from @data (kernel space) to @gra (guest real address).
410  * Returns zero on success, -EFAULT when copying from @data failed, or
425  * read_guest_real - copy data from guest space real to kernel space
427  * @gra: guest real address
431  * Copy @len bytes from @gra (guest real address) to @data (kernel space).
434  * Returns zero on success, -EFAULT when copying to @data failed, or