Message ID | 1491396106-26376-17-git-send-email-clg@kaod.org |
---|---|
State | New |
Headers | show |
On Wed, Apr 05, 2017 at 02:41:41PM +0200, Cédric Le Goater wrote: > OpenPOWER systems expect to be notified with such an event before a > shutdown or a reboot. An OEM SEL message is sent with specific > identifiers and a user data containing the request : OFF or REBOOT. > > Signed-off-by: Cédric Le Goater <clg@kaod.org> Reviewed-by: David Gibson <david@gibson.dropbear.id.au> > --- > hw/ppc/pnv.c | 14 ++++++++++++++ > hw/ppc/pnv_bmc.c | 42 ++++++++++++++++++++++++++++++++++++++++++ > include/hw/ppc/pnv.h | 3 +++ > 3 files changed, 59 insertions(+) > > diff --git a/hw/ppc/pnv.c b/hw/ppc/pnv.c > index c7caecad0aa6..df0a88c3e252 100644 > --- a/hw/ppc/pnv.c > +++ b/hw/ppc/pnv.c > @@ -467,6 +467,15 @@ static void *powernv_create_fdt(MachineState *machine) > return fdt; > } > > +static void pnv_powerdown_notify(Notifier *n, void *opaque) > +{ > + PnvMachineState *pnv = POWERNV_MACHINE(qdev_get_machine()); > + > + if (pnv->bmc) { > + pnv_bmc_powerdown(pnv->bmc); > + } > +} > + > static void ppc_powernv_reset(void) > { > MachineState *machine = MACHINE(qdev_get_machine()); > @@ -662,6 +671,11 @@ static void ppc_powernv_init(MachineState *machine) > > /* Create an RTC ISA device too */ > rtc_init(pnv->isa_bus, 2000, NULL); > + > + /* OpenPOWER systems use a IPMI SEL Event message to notify the > + * host to powerdown */ > + pnv->powerdown_notifier.notify = pnv_powerdown_notify; > + qemu_register_powerdown_notifier(&pnv->powerdown_notifier); > } > > /* > diff --git a/hw/ppc/pnv_bmc.c b/hw/ppc/pnv_bmc.c > index 2998530dc4c0..d9ed774acbac 100644 > --- a/hw/ppc/pnv_bmc.c > +++ b/hw/ppc/pnv_bmc.c > @@ -32,6 +32,48 @@ > /* TODO: include definition in ipmi.h */ > #define IPMI_SDR_FULL_TYPE 1 > > +/* > + * OEM SEL Event data packet sent by BMC in response of a Read Event > + * Message Buffer command > + */ > +typedef struct OemSel { > + /* SEL header */ > + uint8_t id[2]; > + uint8_t type; > + uint8_t timestamp[4]; > + uint8_t manuf_id[3]; > + > + /* OEM SEL data (6 bytes) follows */ > + uint8_t netfun; > + uint8_t cmd; > + uint8_t data[4]; > +} OemSel; > + > +#define SOFT_OFF 0x00 > +#define SOFT_REBOOT 0x01 > + > +static void pnv_gen_oem_sel(Object *obj, uint8_t reboot) > +{ > + /* IPMI SEL Event are 16 bytes long */ > + OemSel sel = { > + .id = { 0x55 , 0x55 }, > + .type = 0xC0, /* OEM */ > + .manuf_id = { 0x0, 0x0, 0x0 }, > + .timestamp = { 0x0, 0x0, 0x0, 0x0 }, > + .netfun = 0x3A, /* IBM */ > + .cmd = 0x04, /* AMI OEM SEL Power Notification */ > + .data = { reboot, 0xFF, 0xFF, 0xFF }, > + }; > + > + ipmi_bmc_gen_event(IPMI_BMC(obj), (uint8_t *) &sel, > + 0 /* do not log the event */); > +} > + > +void pnv_bmc_powerdown(Object *obj) > +{ > + pnv_gen_oem_sel(obj, SOFT_OFF); > +} > + > void pnv_bmc_populate_sensors(Object *bmc, void *fdt) > { > int offset; > diff --git a/include/hw/ppc/pnv.h b/include/hw/ppc/pnv.h > index 050763f6cf54..b70a13bd4175 100644 > --- a/include/hw/ppc/pnv.h > +++ b/include/hw/ppc/pnv.h > @@ -132,6 +132,8 @@ typedef struct PnvMachineState { > uint32_t cpld_irqstate; > > Object *bmc; > + > + Notifier powerdown_notifier; > } PnvMachineState; > > #define PNV_FDT_ADDR 0x01000000 > @@ -141,6 +143,7 @@ typedef struct PnvMachineState { > * BMC helpers > */ > void pnv_bmc_populate_sensors(Object *objbmc, void *fdt); > +void pnv_bmc_powerdown(Object *objbmc); > > /* > * POWER8 MMIO base addresses
diff --git a/hw/ppc/pnv.c b/hw/ppc/pnv.c index c7caecad0aa6..df0a88c3e252 100644 --- a/hw/ppc/pnv.c +++ b/hw/ppc/pnv.c @@ -467,6 +467,15 @@ static void *powernv_create_fdt(MachineState *machine) return fdt; } +static void pnv_powerdown_notify(Notifier *n, void *opaque) +{ + PnvMachineState *pnv = POWERNV_MACHINE(qdev_get_machine()); + + if (pnv->bmc) { + pnv_bmc_powerdown(pnv->bmc); + } +} + static void ppc_powernv_reset(void) { MachineState *machine = MACHINE(qdev_get_machine()); @@ -662,6 +671,11 @@ static void ppc_powernv_init(MachineState *machine) /* Create an RTC ISA device too */ rtc_init(pnv->isa_bus, 2000, NULL); + + /* OpenPOWER systems use a IPMI SEL Event message to notify the + * host to powerdown */ + pnv->powerdown_notifier.notify = pnv_powerdown_notify; + qemu_register_powerdown_notifier(&pnv->powerdown_notifier); } /* diff --git a/hw/ppc/pnv_bmc.c b/hw/ppc/pnv_bmc.c index 2998530dc4c0..d9ed774acbac 100644 --- a/hw/ppc/pnv_bmc.c +++ b/hw/ppc/pnv_bmc.c @@ -32,6 +32,48 @@ /* TODO: include definition in ipmi.h */ #define IPMI_SDR_FULL_TYPE 1 +/* + * OEM SEL Event data packet sent by BMC in response of a Read Event + * Message Buffer command + */ +typedef struct OemSel { + /* SEL header */ + uint8_t id[2]; + uint8_t type; + uint8_t timestamp[4]; + uint8_t manuf_id[3]; + + /* OEM SEL data (6 bytes) follows */ + uint8_t netfun; + uint8_t cmd; + uint8_t data[4]; +} OemSel; + +#define SOFT_OFF 0x00 +#define SOFT_REBOOT 0x01 + +static void pnv_gen_oem_sel(Object *obj, uint8_t reboot) +{ + /* IPMI SEL Event are 16 bytes long */ + OemSel sel = { + .id = { 0x55 , 0x55 }, + .type = 0xC0, /* OEM */ + .manuf_id = { 0x0, 0x0, 0x0 }, + .timestamp = { 0x0, 0x0, 0x0, 0x0 }, + .netfun = 0x3A, /* IBM */ + .cmd = 0x04, /* AMI OEM SEL Power Notification */ + .data = { reboot, 0xFF, 0xFF, 0xFF }, + }; + + ipmi_bmc_gen_event(IPMI_BMC(obj), (uint8_t *) &sel, + 0 /* do not log the event */); +} + +void pnv_bmc_powerdown(Object *obj) +{ + pnv_gen_oem_sel(obj, SOFT_OFF); +} + void pnv_bmc_populate_sensors(Object *bmc, void *fdt) { int offset; diff --git a/include/hw/ppc/pnv.h b/include/hw/ppc/pnv.h index 050763f6cf54..b70a13bd4175 100644 --- a/include/hw/ppc/pnv.h +++ b/include/hw/ppc/pnv.h @@ -132,6 +132,8 @@ typedef struct PnvMachineState { uint32_t cpld_irqstate; Object *bmc; + + Notifier powerdown_notifier; } PnvMachineState; #define PNV_FDT_ADDR 0x01000000 @@ -141,6 +143,7 @@ typedef struct PnvMachineState { * BMC helpers */ void pnv_bmc_populate_sensors(Object *objbmc, void *fdt); +void pnv_bmc_powerdown(Object *objbmc); /* * POWER8 MMIO base addresses
OpenPOWER systems expect to be notified with such an event before a shutdown or a reboot. An OEM SEL message is sent with specific identifiers and a user data containing the request : OFF or REBOOT. Signed-off-by: Cédric Le Goater <clg@kaod.org> --- hw/ppc/pnv.c | 14 ++++++++++++++ hw/ppc/pnv_bmc.c | 42 ++++++++++++++++++++++++++++++++++++++++++ include/hw/ppc/pnv.h | 3 +++ 3 files changed, 59 insertions(+)