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authorAvi Kivity <avi@qumranet.com>2007-03-04 14:24:03 +0200
committerAvi Kivity <avi@qumranet.com>2007-05-03 10:52:24 +0300
commit1b19f3e61d7e1edb395dd64bf7d63621a37af8ca (patch)
tree52d90cc6e505f84ec741770950f4f07be45b7fba
parent8eb7d334bd8e693340ee198280f7d45035cdab8c (diff)
downloadop-kernel-dev-1b19f3e61d7e1edb395dd64bf7d63621a37af8ca.zip
op-kernel-dev-1b19f3e61d7e1edb395dd64bf7d63621a37af8ca.tar.gz
KVM: Add a special exit reason when exiting due to an interrupt
This is redundant, as we also return -EINTR from the ioctl, but it allows us to examine the exit_reason field on resume without seeing old data. Signed-off-by: Avi Kivity <avi@qumranet.com>
-rw-r--r--drivers/kvm/svm.c2
-rw-r--r--drivers/kvm/vmx.c2
-rw-r--r--include/linux/kvm.h3
3 files changed, 6 insertions, 1 deletions
diff --git a/drivers/kvm/svm.c b/drivers/kvm/svm.c
index b09928f..0311665 100644
--- a/drivers/kvm/svm.c
+++ b/drivers/kvm/svm.c
@@ -1619,12 +1619,14 @@ again:
if (signal_pending(current)) {
++kvm_stat.signal_exits;
post_kvm_run_save(vcpu, kvm_run);
+ kvm_run->exit_reason = KVM_EXIT_INTR;
return -EINTR;
}
if (dm_request_for_irq_injection(vcpu, kvm_run)) {
++kvm_stat.request_irq_exits;
post_kvm_run_save(vcpu, kvm_run);
+ kvm_run->exit_reason = KVM_EXIT_INTR;
return -EINTR;
}
kvm_resched(vcpu);
diff --git a/drivers/kvm/vmx.c b/drivers/kvm/vmx.c
index cf9568f..e69bab6 100644
--- a/drivers/kvm/vmx.c
+++ b/drivers/kvm/vmx.c
@@ -1941,12 +1941,14 @@ again:
if (signal_pending(current)) {
++kvm_stat.signal_exits;
post_kvm_run_save(vcpu, kvm_run);
+ kvm_run->exit_reason = KVM_EXIT_INTR;
return -EINTR;
}
if (dm_request_for_irq_injection(vcpu, kvm_run)) {
++kvm_stat.request_irq_exits;
post_kvm_run_save(vcpu, kvm_run);
+ kvm_run->exit_reason = KVM_EXIT_INTR;
return -EINTR;
}
diff --git a/include/linux/kvm.h b/include/linux/kvm.h
index 57f47ef..b3af92e 100644
--- a/include/linux/kvm.h
+++ b/include/linux/kvm.h
@@ -11,7 +11,7 @@
#include <asm/types.h>
#include <linux/ioctl.h>
-#define KVM_API_VERSION 8
+#define KVM_API_VERSION 9
/*
* Architectural interrupt line count, and the size of the bitmap needed
@@ -45,6 +45,7 @@ enum kvm_exit_reason {
KVM_EXIT_IRQ_WINDOW_OPEN = 7,
KVM_EXIT_SHUTDOWN = 8,
KVM_EXIT_FAIL_ENTRY = 9,
+ KVM_EXIT_INTR = 10,
};
/* for KVM_RUN, returned by mmap(vcpu_fd, offset=0) */
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