summaryrefslogtreecommitdiff
path: root/Documentation/virtual/kvm/hypercalls.txt
diff options
context:
space:
mode:
Diffstat (limited to 'Documentation/virtual/kvm/hypercalls.txt')
-rw-r--r--Documentation/virtual/kvm/hypercalls.txt5
1 files changed, 4 insertions, 1 deletions
diff --git a/Documentation/virtual/kvm/hypercalls.txt b/Documentation/virtual/kvm/hypercalls.txt
index 022198e389d7..c8d040e27046 100644
--- a/Documentation/virtual/kvm/hypercalls.txt
+++ b/Documentation/virtual/kvm/hypercalls.txt
@@ -17,6 +17,9 @@ S390:
S390 uses diagnose instruction as hypercall (0x500) along with hypercall
number in R1.
+ For further information on the S390 diagnose call as supported by KVM,
+ refer to Documentation/virtual/kvm/s390-diag.txt.
+
PowerPC:
It uses R3-R10 and hypercall number in R11. R4-R11 are used as output registers.
Return value is placed in R3.
@@ -74,7 +77,7 @@ Usage example : A vcpu of a paravirtualized guest that is busywaiting in guest
kernel mode for an event to occur (ex: a spinlock to become available) can
execute HLT instruction once it has busy-waited for more than a threshold
time-interval. Execution of HLT instruction would cause the hypervisor to put
-the vcpu to sleep until occurence of an appropriate event. Another vcpu of the
+the vcpu to sleep until occurrence of an appropriate event. Another vcpu of the
same guest can wakeup the sleeping vcpu by issuing KVM_HC_KICK_CPU hypercall,
specifying APIC ID (a1) of the vcpu to be woken up. An additional argument (a0)
is used in the hypercall for future use.