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2019-08-09s390/mm: Remove sev_active() functionThiago Jung Bauermann1-1/+0
All references to sev_active() were moved to arch/x86 so we don't need to define it for s390 anymore. Signed-off-by: Thiago Jung Bauermann <bauerman@linux.ibm.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Halil Pasic <pasic@linux.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20190806044919.10622-7-bauerman@linux.ibm.com
2019-08-09x86, s390/mm: Move sme_active() and sme_me_mask to x86-specific headerThiago Jung Bauermann1-3/+1
Now that generic code doesn't reference them, move sme_active() and sme_me_mask to x86's <asm/mem_encrypt.h>. Also remove the export for sme_active() since it's only used in files that won't be built as modules. sme_me_mask on the other hand is used in arch/x86/kvm/svm.c (via __sme_set() and __psp_pa()) which can be built as a module so its export needs to stay. Signed-off-by: Thiago Jung Bauermann <bauerman@linux.ibm.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Tom Lendacky <thomas.lendacky@amd.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20190806044919.10622-5-bauerman@linux.ibm.com
2019-06-15s390/mm: force swiotlb for protected virtualizationHalil Pasic1-0/+17
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>

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