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KVM: s390: intercepts for privileged instructions

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This patch introduces in-kernel handling of some intercepts for privileged
instructions:

handle_set_prefix()        sets the prefix register of the local cpu
handle_store_prefix()      stores the content of the prefix register to memory
handle_store_cpu_address() stores the cpu number of the current cpu to memory
handle_skey()              just decrements the instruction address and retries
handle_stsch()             delivers condition code 3 "operation not supported"
handle_chsc()              same here
handle_stfl()              stores the facility list which contains the
                           capabilities of the cpu
handle_stidp()             stores cpu type/model/revision and such
handle_stsi()              stores information about the system topology

Acked-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Carsten Otte <cotte@de.ibm.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
This commit is contained in:
Christian Borntraeger
2008-03-25 18:47:29 +01:00
committed by Avi Kivity
parent ba5c1e9b6c
commit 453423dce2
6 changed files with 352 additions and 1 deletions
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arch/s390/kvm/intercept.c
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@@ -95,6 +95,7 @@ static int handle_lctl(struct kvm_vcpu *vcpu)
}
static intercept_handler_t instruction_handlers[256] = {
[0xb2] = kvm_s390_handle_priv,
[0xb7] = handle_lctl,
[0xeb] = handle_lctg,
};