From 81b205cecf30d5e1e1c2ece1f7121855e4e0fb1e Mon Sep 17 00:00:00 2001 From: Alexey Kardashevskiy Date: Wed, 22 Jun 2022 15:10:08 +1000 Subject: ppc/spapr: Implement H_WATCHDOG MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The new PAPR 2.12 defines a watchdog facility managed via the new H_WATCHDOG hypercall. This adds H_WATCHDOG support which a proposed driver for pseries uses: https://patchwork.ozlabs.org/project/linuxppc-dev/list/?series=303120 This was tested by running QEMU with a debug kernel and command line: -append \ "pseries-wdt.timeout=60 pseries-wdt.nowayout=1 pseries-wdt.action=2" and running "echo V > /dev/watchdog0" inside the VM. Signed-off-by: Alexey Kardashevskiy Reviewed-by: Cédric Le Goater Reviewed-by: Daniel Henrique Barboza Message-Id: <20220622051008.1067464-1-aik@ozlabs.ru> Signed-off-by: Daniel Henrique Barboza --- hw/watchdog/trace-events | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'hw/watchdog/trace-events') diff --git a/hw/watchdog/trace-events b/hw/watchdog/trace-events index e7523e22aa..89ccbcfdfd 100644 --- a/hw/watchdog/trace-events +++ b/hw/watchdog/trace-events @@ -9,3 +9,10 @@ cmsdk_apb_watchdog_lock(uint32_t lock) "CMSDK APB watchdog: lock %" PRIu32 # wdt-aspeed.c aspeed_wdt_read(uint64_t addr, uint32_t size) "@0x%" PRIx64 " size=%d" aspeed_wdt_write(uint64_t addr, uint32_t size, uint64_t data) "@0x%" PRIx64 " size=%d value=0x%"PRIx64 + +# spapr_watchdog.c +spapr_watchdog_start(uint64_t flags, uint64_t num, uint64_t timeout) "Flags 0x%" PRIx64 " num=%" PRId64 " %" PRIu64 "ms" +spapr_watchdog_stop(uint64_t num, uint64_t ret) "num=%" PRIu64 " ret=%" PRId64 +spapr_watchdog_query(uint64_t caps) "caps=0x%" PRIx64 +spapr_watchdog_query_lpm(uint64_t caps) "caps=0x%" PRIx64 +spapr_watchdog_expired(uint64_t num, unsigned action) "num=%" PRIu64 " action=%u" -- cgit v1.2.3