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authorChristian Borntraeger <borntraeger@de.ibm.com>2008-03-25 18:47:23 +0100
committerAvi Kivity <avi@qumranet.com>2008-04-27 12:00:43 +0300
commit8f2abe6a1e525e878bdf58f68ccd146d543fde84 (patch)
tree5f52959474a16847c740fb8668ebd9d6cbc75d07 /include/asm-s390
parentb0c632db637d68ad39d9f97f452ce176253f5f4e (diff)
downloadlwn-8f2abe6a1e525e878bdf58f68ccd146d543fde84.tar.gz
lwn-8f2abe6a1e525e878bdf58f68ccd146d543fde84.zip
KVM: s390: sie intercept handling
This path introduces handling of sie intercepts in three flavors: Intercepts are either handled completely in-kernel by kvm_handle_sie_intercept(), or passed to userspace with corresponding data in struct kvm_run in case kvm_handle_sie_intercept() returns -ENOTSUPP. In case of partial execution in kernel with the need of userspace support, kvm_handle_sie_intercept() may choose to set up struct kvm_run and return -EREMOTE. The trivial intercept reasons are handled in this patch: handle_noop() just does nothing for intercepts that don't require our support at all handle_stop() is called when a cpu enters stopped state, and it drops out to userland after updating our vcpu state handle_validity() faults in the cpu lowcore if needed, or passes the request to userland Acked-by: Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com> Signed-off-by: Carsten Otte <cotte@de.ibm.com> Signed-off-by: Avi Kivity <avi@qumranet.com>
Diffstat (limited to 'include/asm-s390')
-rw-r--r--include/asm-s390/kvm_host.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/include/asm-s390/kvm_host.h b/include/asm-s390/kvm_host.h
index c9d653333106..8965b38d0a32 100644
--- a/include/asm-s390/kvm_host.h
+++ b/include/asm-s390/kvm_host.h
@@ -101,6 +101,10 @@ struct sie_block {
struct kvm_vcpu_stat {
u32 exit_userspace;
+ u32 exit_external_request;
+ u32 exit_external_interrupt;
+ u32 exit_stop_request;
+ u32 exit_validity;
};
struct kvm_vcpu_arch {