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| author | Carsten Otte <cotte@de.ibm.com> | 2011-07-24 08:48:22 (GMT) |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2011-07-24 08:48:21 (GMT) |
| commit | 092670cd90eb88c33661de21f1b4ee08d2597171 (patch) | |
| tree | 2960d3ef459eccd0c2a7d0e2a77fad9bdb2437f2 /arch/s390/kvm/kvm-s390.h | |
| parent | 598841ca9919d008b520114d8a4378c4ce4e40a1 (diff) | |
| download | linux-fsl-qoriq-092670cd90eb88c33661de21f1b4ee08d2597171.tar.xz | |
[S390] Use gmap translation for accessing guest memory
This patch removes kvm-s390 internal assumption of a linear mapping
of guest address space to user space. Previously, guest memory was
translated to user addresses using a fixed offset (gmsor). The new
code uses gmap_fault to resolve guest addresses.
Signed-off-by: Carsten Otte <cotte@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390/kvm/kvm-s390.h')
| -rw-r--r-- | arch/s390/kvm/kvm-s390.h | 23 |
1 files changed, 0 insertions, 23 deletions
diff --git a/arch/s390/kvm/kvm-s390.h b/arch/s390/kvm/kvm-s390.h index 65e2201..63e5190 100644 --- a/arch/s390/kvm/kvm-s390.h +++ b/arch/s390/kvm/kvm-s390.h @@ -58,31 +58,8 @@ int kvm_s390_inject_vcpu(struct kvm_vcpu *vcpu, int kvm_s390_inject_program_int(struct kvm_vcpu *vcpu, u16 code); int kvm_s390_inject_sigp_stop(struct kvm_vcpu *vcpu, int action); -static inline long kvm_s390_vcpu_get_memsize(struct kvm_vcpu *vcpu) -{ - return vcpu->arch.sie_block->gmslm - - vcpu->arch.sie_block->gmsor - - VIRTIODESCSPACE + 1ul; -} - static inline void kvm_s390_vcpu_set_mem(struct kvm_vcpu *vcpu) { - int idx; - struct kvm_memory_slot *mem; - struct kvm_memslots *memslots; - - idx = srcu_read_lock(&vcpu->kvm->srcu); - memslots = kvm_memslots(vcpu->kvm); - - mem = &memslots->memslots[0]; - - vcpu->arch.sie_block->gmsor = mem->userspace_addr; - vcpu->arch.sie_block->gmslm = - mem->userspace_addr + - (mem->npages << PAGE_SHIFT) + - VIRTIODESCSPACE - 1ul; - - srcu_read_unlock(&vcpu->kvm->srcu, idx); } /* implemented in priv.c */ |