diff options
| author | Paolo Bonzini <pbonzini@redhat.com> | 2017-10-12 15:54:08 +0200 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2017-10-16 18:03:52 +0200 |
| commit | 6a24f34e5c0bf83c5a31015242c94185c95c2554 (patch) | |
| tree | 0565158883793eb0b8dd8c64f7f683e023216d5c /hw/acpi/tco.c | |
| parent | b7ecba0f6f6427683b2dc609f4830535b9a271dd (diff) | |
tco: add trace events
Add trace events to the PCH watchdog timer, it can be useful to see how
the guest is using it.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <1507816448-86665-1-git-send-email-pbonzini@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'hw/acpi/tco.c')
| -rw-r--r-- | hw/acpi/tco.c | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/hw/acpi/tco.c b/hw/acpi/tco.c index 05b9d7ba36..a9143963ab 100644 --- a/hw/acpi/tco.c +++ b/hw/acpi/tco.c @@ -12,6 +12,7 @@ #include "hw/i386/ich9.h" #include "hw/acpi/tco.h" +#include "trace.h" //#define DEBUG @@ -41,8 +42,11 @@ enum { static inline void tco_timer_reload(TCOIORegs *tr) { - tr->expire_time = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL) + - ((int64_t)(tr->tco.tmr & TCO_TMR_MASK) * TCO_TICK_NSEC); + int ticks = tr->tco.tmr & TCO_TMR_MASK; + int64_t nsec = (int64_t)ticks * TCO_TICK_NSEC; + + trace_tco_timer_reload(ticks, nsec / 1000000); + tr->expire_time = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL) + nsec; timer_mod(tr->tco_timer, tr->expire_time); } @@ -59,6 +63,9 @@ static void tco_timer_expired(void *opaque) ICH9LPCState *lpc = container_of(pm, ICH9LPCState, pm); uint32_t gcs = pci_get_long(lpc->chip_config + ICH9_CC_GCS); + trace_tco_timer_expired(tr->timeouts_no, + lpc->pin_strap.spkr_hi, + !!(gcs & ICH9_CC_GCS_NO_REBOOT)); tr->tco.rld = 0; tr->tco.sts1 |= TCO_TIMEOUT; if (++tr->timeouts_no == 2) { |