diff options
| author | Justin Terry (VM) via Qemu-devel <qemu-devel@nongnu.org> | 2018-02-26 09:13:36 -0800 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2018-03-06 14:01:29 +0100 |
| commit | eb1fe944a89457981407f5335f11bae104a32e57 (patch) | |
| tree | c710edaa18b982a10f6215e57e8387603151e436 | |
| parent | e2940978fc86b2bf2016e115c56c01f850092bfb (diff) | |
WHPX improve interrupt notification registration
Improves the usage of the InterruptNotification registration by skipping the
additional call to WHvSetVirtualProcessorRegisters if we have already
registered for the window exit.
Signed-off-by: Justin Terry (VM) <juterry@microsoft.com>
Message-Id: <1519665216-1078-9-git-send-email-juterry@microsoft.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Justin Terry (VM) via Qemu-devel <qemu-devel@nongnu.org>
| -rw-r--r-- | target/i386/whpx-all.c | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/target/i386/whpx-all.c b/target/i386/whpx-all.c index 24387bebad..940bbe590d 100644 --- a/target/i386/whpx-all.c +++ b/target/i386/whpx-all.c @@ -756,12 +756,11 @@ static void whpx_vcpu_pre_run(CPUState *cpu) } /* Update the state of the interrupt delivery notification */ - if (cpu->interrupt_request & CPU_INTERRUPT_HARD) { + if (!vcpu->window_registered && + cpu->interrupt_request & CPU_INTERRUPT_HARD) { reg_values[reg_count].DeliverabilityNotifications.InterruptNotification = 1; - if (vcpu->window_registered != 1) { - vcpu->window_registered = 1; - } + vcpu->window_registered = 1; reg_names[reg_count] = WHvX64RegisterDeliverabilityNotifications; reg_count += 1; } |