Commit 1b19f3e6 authored by Avi Kivity's avatar Avi Kivity

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: default avatarAvi Kivity <avi@qumranet.com>
parent 8eb7d334
...@@ -1619,12 +1619,14 @@ again: ...@@ -1619,12 +1619,14 @@ again:
if (signal_pending(current)) { if (signal_pending(current)) {
++kvm_stat.signal_exits; ++kvm_stat.signal_exits;
post_kvm_run_save(vcpu, kvm_run); post_kvm_run_save(vcpu, kvm_run);
kvm_run->exit_reason = KVM_EXIT_INTR;
return -EINTR; return -EINTR;
} }
if (dm_request_for_irq_injection(vcpu, kvm_run)) { if (dm_request_for_irq_injection(vcpu, kvm_run)) {
++kvm_stat.request_irq_exits; ++kvm_stat.request_irq_exits;
post_kvm_run_save(vcpu, kvm_run); post_kvm_run_save(vcpu, kvm_run);
kvm_run->exit_reason = KVM_EXIT_INTR;
return -EINTR; return -EINTR;
} }
kvm_resched(vcpu); kvm_resched(vcpu);
......
...@@ -1941,12 +1941,14 @@ again: ...@@ -1941,12 +1941,14 @@ again:
if (signal_pending(current)) { if (signal_pending(current)) {
++kvm_stat.signal_exits; ++kvm_stat.signal_exits;
post_kvm_run_save(vcpu, kvm_run); post_kvm_run_save(vcpu, kvm_run);
kvm_run->exit_reason = KVM_EXIT_INTR;
return -EINTR; return -EINTR;
} }
if (dm_request_for_irq_injection(vcpu, kvm_run)) { if (dm_request_for_irq_injection(vcpu, kvm_run)) {
++kvm_stat.request_irq_exits; ++kvm_stat.request_irq_exits;
post_kvm_run_save(vcpu, kvm_run); post_kvm_run_save(vcpu, kvm_run);
kvm_run->exit_reason = KVM_EXIT_INTR;
return -EINTR; return -EINTR;
} }
......
...@@ -11,7 +11,7 @@ ...@@ -11,7 +11,7 @@
#include <asm/types.h> #include <asm/types.h>
#include <linux/ioctl.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 * Architectural interrupt line count, and the size of the bitmap needed
...@@ -45,6 +45,7 @@ enum kvm_exit_reason { ...@@ -45,6 +45,7 @@ enum kvm_exit_reason {
KVM_EXIT_IRQ_WINDOW_OPEN = 7, KVM_EXIT_IRQ_WINDOW_OPEN = 7,
KVM_EXIT_SHUTDOWN = 8, KVM_EXIT_SHUTDOWN = 8,
KVM_EXIT_FAIL_ENTRY = 9, KVM_EXIT_FAIL_ENTRY = 9,
KVM_EXIT_INTR = 10,
}; };
/* for KVM_RUN, returned by mmap(vcpu_fd, offset=0) */ /* for KVM_RUN, returned by mmap(vcpu_fd, offset=0) */
......
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