linux/arch/s390/include/asm/mem_encrypt.h

/* SPDX-License-Identifier: GPL-2.0 */
#ifndef S390_MEM_ENCRYPT_H__
#define S390_MEM_ENCRYPT_H__

#ifndef __ASSEMBLY__

int set_memory_encrypted(unsigned long vaddr, int numpages);
int set_memory_decrypted(unsigned long vaddr, int numpages);

#endif	/* __ASSEMBLY__ */

#endif	/* S390_MEM_ENCRYPT_H__ */
s390/mm: force swiotlb for protected virtualization On s390, protected virtualization guests have to use bounced I/O buffers. That requires some plumbing. Let us make sure, any device that uses DMA API with direct ops correctly is spared from the problems, that a hypervisor attempting I/O to a non-shared page would bring. Signed-off-by: Halil Pasic <pasic@linux.ibm.com> Reviewed-by: Claudio Imbrenda <imbrenda@linux.ibm.com> Reviewed-by: Michael Mueller <mimu@linux.ibm.com> Tested-by: Michael Mueller <mimu@linux.ibm.com> Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> 2018-09-13 16:57:16 +00:00			`/* SPDX-License-Identifier: GPL-2.0 */`
			`#ifndef S390_MEM_ENCRYPT_H__`
			`#define S390_MEM_ENCRYPT_H__`

			`#ifndef __ASSEMBLY__`

s390/mm: fix virtual-physical address confusion for swiotlb swiotlb passes virtual addresses to set_memory_encrypted() and set_memory_decrypted(), but uv_remove_shared() and uv_set_shared() expect physical addresses. This currently works, because virtual and physical addresses are the same. Add virt_to_phys() to resolve the virtual-physical confusion. Reported-by: Marc Hartmayer <mhartmay@linux.ibm.com> Signed-off-by: Nico Boehr <nrb@linux.ibm.com> Reviewed-by: Claudio Imbrenda <imbrenda@linux.ibm.com> Reviewed-by: Christian Borntraeger <borntraeger@linux.ibm.com> Link: https://lore.kernel.org/r/20221107121221.156274-2-nrb@linux.ibm.com Message-Id: <20221107121221.156274-2-nrb@linux.ibm.com> Signed-off-by: Janosch Frank <frankja@linux.ibm.com> 2022-11-07 12:12:21 +00:00			`int set_memory_encrypted(unsigned long vaddr, int numpages);`
			`int set_memory_decrypted(unsigned long vaddr, int numpages);`
s390/mm: force swiotlb for protected virtualization On s390, protected virtualization guests have to use bounced I/O buffers. That requires some plumbing. Let us make sure, any device that uses DMA API with direct ops correctly is spared from the problems, that a hypervisor attempting I/O to a non-shared page would bring. Signed-off-by: Halil Pasic <pasic@linux.ibm.com> Reviewed-by: Claudio Imbrenda <imbrenda@linux.ibm.com> Reviewed-by: Michael Mueller <mimu@linux.ibm.com> Tested-by: Michael Mueller <mimu@linux.ibm.com> Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> 2018-09-13 16:57:16 +00:00
			`#endif /* __ASSEMBLY__ */`

			`#endif /* S390_MEM_ENCRYPT_H__ */`