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| author | Thomas Huth <thuth@linux.vnet.ibm.com> | 2015-02-06 15:54:58 +0100 |
|---|---|---|
| committer | Cornelia Huck <cornelia.huck@de.ibm.com> | 2015-04-30 13:21:42 +0200 |
| commit | a9bcd1b8719dea2e91512238d810e2a0037e174d (patch) | |
| tree | 9f4520bf1f7267b405dbf8e4b18074af306a56cd /target-s390x/cpu.h | |
| parent | f07177a5599fb204e42a007db4820ceda1bc85ba (diff) | |
s390x/mmu: Use ioctl for reading and writing from/to guest memory
Add code to make use of the new ioctl for reading from / writing to
virtual guest memory. By using the ioctl, the memory accesses are now
protected with the so-called ipte-lock in the kernel.
[CH: moved error message into kvm_s390_mem_op()]
Signed-off-by: Thomas Huth <thuth@linux.vnet.ibm.com>
Acked-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Diffstat (limited to 'target-s390x/cpu.h')
| -rw-r--r-- | target-s390x/cpu.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/target-s390x/cpu.h b/target-s390x/cpu.h index 79bc80b586..9c4274325a 100644 --- a/target-s390x/cpu.h +++ b/target-s390x/cpu.h @@ -401,6 +401,8 @@ void kvm_s390_vcpu_interrupt(S390CPU *cpu, struct kvm_s390_irq *irq); void kvm_s390_floating_interrupt(struct kvm_s390_irq *irq); int kvm_s390_inject_flic(struct kvm_s390_irq *irq); void kvm_s390_access_exception(S390CPU *cpu, uint16_t code, uint64_t te_code); +int kvm_s390_mem_op(S390CPU *cpu, vaddr addr, void *hostbuf, int len, + bool is_write); int kvm_s390_get_clock(uint8_t *tod_high, uint64_t *tod_clock); int kvm_s390_set_clock(uint8_t *tod_high, uint64_t *tod_clock); #else @@ -418,6 +420,11 @@ static inline int kvm_s390_set_clock(uint8_t *tod_high, uint64_t *tod_low) { return -ENOSYS; } +static inline int kvm_s390_mem_op(S390CPU *cpu, vaddr addr, void *hostbuf, + int len, bool is_write) +{ + return -ENOSYS; +} static inline void kvm_s390_access_exception(S390CPU *cpu, uint16_t code, uint64_t te_code) { |