diff options
| author | Alexey Kardashevskiy <aik@ozlabs.ru> | 2022-06-22 15:10:08 +1000 |
|---|---|---|
| committer | Daniel Henrique Barboza <danielhb413@gmail.com> | 2022-07-06 10:22:38 -0300 |
| commit | 81b205cecf30d5e1e1c2ece1f7121855e4e0fb1e (patch) | |
| tree | 8d215da8fbb2ce87faf17b0b6d517e53b5be1048 /hw/ppc | |
| parent | 95444afcab4dd7ecd117b67aae5af8f8665be0ff (diff) | |
ppc/spapr: Implement H_WATCHDOG
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 <aik@ozlabs.ru>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Message-Id: <20220622051008.1067464-1-aik@ozlabs.ru>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Diffstat (limited to 'hw/ppc')
| -rw-r--r-- | hw/ppc/spapr.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/hw/ppc/spapr.c b/hw/ppc/spapr.c index fd4942e881..9a5382d527 100644 --- a/hw/ppc/spapr.c +++ b/hw/ppc/spapr.c @@ -898,6 +898,8 @@ static void spapr_dt_rtas(SpaprMachineState *spapr, void *fdt) add_str(hypertas, "hcall-hpt-resize"); } + add_str(hypertas, "hcall-watchdog"); + _FDT(fdt_setprop(fdt, rtas, "ibm,hypertas-functions", hypertas->str, hypertas->len)); g_string_free(hypertas, TRUE); @@ -3051,6 +3053,8 @@ static void spapr_machine_init(MachineState *machine) spapr->vof->fw_size = fw_size; /* for claim() on itself */ spapr_register_hypercall(KVMPPC_H_VOF_CLIENT, spapr_h_vof_client); } + + spapr_watchdog_init(spapr); } #define DEFAULT_KVM_TYPE "auto" |