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authorPaolo Bonzini <pbonzini@redhat.com>2015-01-28 10:16:37 +0100
committerPaolo Bonzini <pbonzini@redhat.com>2015-02-02 16:55:11 +0100
commit2e91cc62f29a7359d00576a250a10892e00c95b4 (patch)
treeaf765b6027ac51777f5d1d97bcb62f9a4ab98a5b /cpu-exec.c
parenta498d0ef37cf23e1776240af61f558d113afdf4f (diff)
cpu-exec: simplify init_delay_params
With the introduction of QEMU_CLOCK_VIRTUAL_RT, the computation of sc->diff_clk can be simplified nicely: qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL) - qemu_clock_get_ns(QEMU_CLOCK_REALTIME) + cpu_get_clock_offset() = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL) - (qemu_clock_get_ns(QEMU_CLOCK_REALTIME) - cpu_get_clock_offset()) = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL) - (qemu_clock_get_ns(QEMU_CLOCK_REALTIME) + timers_state.cpu_clock_offset) = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL) - qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL_RT) Cc: Sebastian Tanase <sebastian.tanase@openwide.fr> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'cpu-exec.c')
-rw-r--r--cpu-exec.c6
1 files changed, 2 insertions, 4 deletions
diff --git a/cpu-exec.c b/cpu-exec.c
index 9dd1ca5bb8..fa506e628a 100644
--- a/cpu-exec.c
+++ b/cpu-exec.c
@@ -100,10 +100,8 @@ static void init_delay_params(SyncClocks *sc,
if (!icount_align_option) {
return;
}
- sc->realtime_clock = qemu_clock_get_ns(QEMU_CLOCK_REALTIME);
- sc->diff_clk = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL) -
- sc->realtime_clock +
- cpu_get_clock_offset();
+ sc->realtime_clock = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL_RT);
+ sc->diff_clk = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL) - sc->realtime_clock;
sc->last_cpu_icount = cpu->icount_extra + cpu->icount_decr.u16.low;
if (sc->diff_clk < max_delay) {
max_delay = sc->diff_clk;