From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:60081) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1e2dwI-0008Vn-KH for qemu-devel@nongnu.org; Thu, 12 Oct 2017 09:54:19 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1e2dwE-0005Mg-KE for qemu-devel@nongnu.org; Thu, 12 Oct 2017 09:54:18 -0400 Received: from mail-wm0-x244.google.com ([2a00:1450:400c:c09::244]:34180) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1e2dwE-0005M1-Cn for qemu-devel@nongnu.org; Thu, 12 Oct 2017 09:54:14 -0400 Received: by mail-wm0-x244.google.com with SMTP id l10so4042458wmg.1 for ; Thu, 12 Oct 2017 06:54:14 -0700 (PDT) Received: from 640k.lan (94-36-246-2.adsl-ull.clienti.tiscali.it. [94.36.246.2]) by smtp.gmail.com with ESMTPSA id s196sm333449wmb.26.2017.10.12.06.54.10 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Thu, 12 Oct 2017 06:54:10 -0700 (PDT) Sender: Paolo Bonzini From: Paolo Bonzini Date: Thu, 12 Oct 2017 15:54:08 +0200 Message-Id: <1507816448-86665-1-git-send-email-pbonzini@redhat.com> Subject: [Qemu-devel] [PATCH] tco: add trace events List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org 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 --- hw/acpi/tco.c | 11 +++++++++-- hw/acpi/trace-events | 4 ++++ 2 files changed, 13 insertions(+), 2 deletions(-) diff --git a/hw/acpi/tco.c b/hw/acpi/tco.c index 05b9d7b..0032db4 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) { diff --git a/hw/acpi/trace-events b/hw/acpi/trace-events index e3b41e9..df0024f 100644 --- a/hw/acpi/trace-events +++ b/hw/acpi/trace-events @@ -30,3 +30,7 @@ cpuhp_acpi_ejecting_invalid_cpu(uint32_t idx) "0x%"PRIx32 cpuhp_acpi_ejecting_cpu(uint32_t idx) "0x%"PRIx32 cpuhp_acpi_write_ost_ev(uint32_t slot, uint32_t ev) "idx[0x%"PRIx32"] OST EVENT: 0x%"PRIx32 cpuhp_acpi_write_ost_status(uint32_t slot, uint32_t st) "idx[0x%"PRIx32"] OST STATUS: 0x%"PRIx32 + +# hw/acpi/tco.c +tco_timer_reload(int ticks, int msec) "ticks=%d (%d ms)" +tco_timer_expired(int timeouts_no, bool strap, bool no_reboot) "timeouts_no=%d no_reboot=%d/%d" -- 1.8.3.1