Hotplug events were previously delivered using an EPOW interrupt and were queued by linux guests into a circular buffer. For traditional EPOW events like shutdown/resets, this isn't an issue, but for hotplug events there are cases where this buffer can be exhausted, resulting in the loss of hotplug events, resets, etc. Newer-style hotplug event are delivered using a dedicated event source. We enable this in supported guests by adding standard an additional event source in the guest device-tree via /event-sources, and, if the guest advertises support for the newer-style hotplug events, using the corresponding interrupt to signal the available of hotplug/unplug events. Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
732 lines
25 KiB
C
732 lines
25 KiB
C
/*
|
|
* QEMU PowerPC pSeries Logical Partition (aka sPAPR) hardware System Emulator
|
|
*
|
|
* RTAS events handling
|
|
*
|
|
* Copyright (c) 2012 David Gibson, IBM Corporation.
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
* of this software and associated documentation files (the "Software"), to deal
|
|
* in the Software without restriction, including without limitation the rights
|
|
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
|
* copies of the Software, and to permit persons to whom the Software is
|
|
* furnished to do so, subject to the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice shall be included in
|
|
* all copies or substantial portions of the Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
|
|
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
|
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
|
* THE SOFTWARE.
|
|
*
|
|
*/
|
|
#include "qemu/osdep.h"
|
|
#include "qapi/error.h"
|
|
#include "cpu.h"
|
|
#include "sysemu/sysemu.h"
|
|
#include "sysemu/char.h"
|
|
#include "hw/qdev.h"
|
|
#include "sysemu/device_tree.h"
|
|
|
|
#include "hw/ppc/fdt.h"
|
|
#include "hw/ppc/spapr.h"
|
|
#include "hw/ppc/spapr_vio.h"
|
|
#include "hw/pci/pci.h"
|
|
#include "hw/pci-host/spapr.h"
|
|
#include "hw/ppc/spapr_drc.h"
|
|
#include "qemu/help_option.h"
|
|
#include "qemu/bcd.h"
|
|
#include "hw/ppc/spapr_ovec.h"
|
|
#include <libfdt.h>
|
|
|
|
struct rtas_error_log {
|
|
uint32_t summary;
|
|
#define RTAS_LOG_VERSION_MASK 0xff000000
|
|
#define RTAS_LOG_VERSION_6 0x06000000
|
|
#define RTAS_LOG_SEVERITY_MASK 0x00e00000
|
|
#define RTAS_LOG_SEVERITY_ALREADY_REPORTED 0x00c00000
|
|
#define RTAS_LOG_SEVERITY_FATAL 0x00a00000
|
|
#define RTAS_LOG_SEVERITY_ERROR 0x00800000
|
|
#define RTAS_LOG_SEVERITY_ERROR_SYNC 0x00600000
|
|
#define RTAS_LOG_SEVERITY_WARNING 0x00400000
|
|
#define RTAS_LOG_SEVERITY_EVENT 0x00200000
|
|
#define RTAS_LOG_SEVERITY_NO_ERROR 0x00000000
|
|
#define RTAS_LOG_DISPOSITION_MASK 0x00180000
|
|
#define RTAS_LOG_DISPOSITION_FULLY_RECOVERED 0x00000000
|
|
#define RTAS_LOG_DISPOSITION_LIMITED_RECOVERY 0x00080000
|
|
#define RTAS_LOG_DISPOSITION_NOT_RECOVERED 0x00100000
|
|
#define RTAS_LOG_OPTIONAL_PART_PRESENT 0x00040000
|
|
#define RTAS_LOG_INITIATOR_MASK 0x0000f000
|
|
#define RTAS_LOG_INITIATOR_UNKNOWN 0x00000000
|
|
#define RTAS_LOG_INITIATOR_CPU 0x00001000
|
|
#define RTAS_LOG_INITIATOR_PCI 0x00002000
|
|
#define RTAS_LOG_INITIATOR_MEMORY 0x00004000
|
|
#define RTAS_LOG_INITIATOR_HOTPLUG 0x00006000
|
|
#define RTAS_LOG_TARGET_MASK 0x00000f00
|
|
#define RTAS_LOG_TARGET_UNKNOWN 0x00000000
|
|
#define RTAS_LOG_TARGET_CPU 0x00000100
|
|
#define RTAS_LOG_TARGET_PCI 0x00000200
|
|
#define RTAS_LOG_TARGET_MEMORY 0x00000400
|
|
#define RTAS_LOG_TARGET_HOTPLUG 0x00000600
|
|
#define RTAS_LOG_TYPE_MASK 0x000000ff
|
|
#define RTAS_LOG_TYPE_OTHER 0x00000000
|
|
#define RTAS_LOG_TYPE_RETRY 0x00000001
|
|
#define RTAS_LOG_TYPE_TCE_ERR 0x00000002
|
|
#define RTAS_LOG_TYPE_INTERN_DEV_FAIL 0x00000003
|
|
#define RTAS_LOG_TYPE_TIMEOUT 0x00000004
|
|
#define RTAS_LOG_TYPE_DATA_PARITY 0x00000005
|
|
#define RTAS_LOG_TYPE_ADDR_PARITY 0x00000006
|
|
#define RTAS_LOG_TYPE_CACHE_PARITY 0x00000007
|
|
#define RTAS_LOG_TYPE_ADDR_INVALID 0x00000008
|
|
#define RTAS_LOG_TYPE_ECC_UNCORR 0x00000009
|
|
#define RTAS_LOG_TYPE_ECC_CORR 0x0000000a
|
|
#define RTAS_LOG_TYPE_EPOW 0x00000040
|
|
#define RTAS_LOG_TYPE_HOTPLUG 0x000000e5
|
|
uint32_t extended_length;
|
|
} QEMU_PACKED;
|
|
|
|
struct rtas_event_log_v6 {
|
|
uint8_t b0;
|
|
#define RTAS_LOG_V6_B0_VALID 0x80
|
|
#define RTAS_LOG_V6_B0_UNRECOVERABLE_ERROR 0x40
|
|
#define RTAS_LOG_V6_B0_RECOVERABLE_ERROR 0x20
|
|
#define RTAS_LOG_V6_B0_DEGRADED_OPERATION 0x10
|
|
#define RTAS_LOG_V6_B0_PREDICTIVE_ERROR 0x08
|
|
#define RTAS_LOG_V6_B0_NEW_LOG 0x04
|
|
#define RTAS_LOG_V6_B0_BIGENDIAN 0x02
|
|
uint8_t _resv1;
|
|
uint8_t b2;
|
|
#define RTAS_LOG_V6_B2_POWERPC_FORMAT 0x80
|
|
#define RTAS_LOG_V6_B2_LOG_FORMAT_MASK 0x0f
|
|
#define RTAS_LOG_V6_B2_LOG_FORMAT_PLATFORM_EVENT 0x0e
|
|
uint8_t _resv2[9];
|
|
uint32_t company;
|
|
#define RTAS_LOG_V6_COMPANY_IBM 0x49424d00 /* IBM<null> */
|
|
} QEMU_PACKED;
|
|
|
|
struct rtas_event_log_v6_section_header {
|
|
uint16_t section_id;
|
|
uint16_t section_length;
|
|
uint8_t section_version;
|
|
uint8_t section_subtype;
|
|
uint16_t creator_component_id;
|
|
} QEMU_PACKED;
|
|
|
|
struct rtas_event_log_v6_maina {
|
|
#define RTAS_LOG_V6_SECTION_ID_MAINA 0x5048 /* PH */
|
|
struct rtas_event_log_v6_section_header hdr;
|
|
uint32_t creation_date; /* BCD: YYYYMMDD */
|
|
uint32_t creation_time; /* BCD: HHMMSS00 */
|
|
uint8_t _platform1[8];
|
|
char creator_id;
|
|
uint8_t _resv1[2];
|
|
uint8_t section_count;
|
|
uint8_t _resv2[4];
|
|
uint8_t _platform2[8];
|
|
uint32_t plid;
|
|
uint8_t _platform3[4];
|
|
} QEMU_PACKED;
|
|
|
|
struct rtas_event_log_v6_mainb {
|
|
#define RTAS_LOG_V6_SECTION_ID_MAINB 0x5548 /* UH */
|
|
struct rtas_event_log_v6_section_header hdr;
|
|
uint8_t subsystem_id;
|
|
uint8_t _platform1;
|
|
uint8_t event_severity;
|
|
uint8_t event_subtype;
|
|
uint8_t _platform2[4];
|
|
uint8_t _resv1[2];
|
|
uint16_t action_flags;
|
|
uint8_t _resv2[4];
|
|
} QEMU_PACKED;
|
|
|
|
struct rtas_event_log_v6_epow {
|
|
#define RTAS_LOG_V6_SECTION_ID_EPOW 0x4550 /* EP */
|
|
struct rtas_event_log_v6_section_header hdr;
|
|
uint8_t sensor_value;
|
|
#define RTAS_LOG_V6_EPOW_ACTION_RESET 0
|
|
#define RTAS_LOG_V6_EPOW_ACTION_WARN_COOLING 1
|
|
#define RTAS_LOG_V6_EPOW_ACTION_WARN_POWER 2
|
|
#define RTAS_LOG_V6_EPOW_ACTION_SYSTEM_SHUTDOWN 3
|
|
#define RTAS_LOG_V6_EPOW_ACTION_SYSTEM_HALT 4
|
|
#define RTAS_LOG_V6_EPOW_ACTION_MAIN_ENCLOSURE 5
|
|
#define RTAS_LOG_V6_EPOW_ACTION_POWER_OFF 7
|
|
uint8_t event_modifier;
|
|
#define RTAS_LOG_V6_EPOW_MODIFIER_NORMAL 1
|
|
#define RTAS_LOG_V6_EPOW_MODIFIER_ON_UPS 2
|
|
#define RTAS_LOG_V6_EPOW_MODIFIER_CRITICAL 3
|
|
#define RTAS_LOG_V6_EPOW_MODIFIER_TEMPERATURE 4
|
|
uint8_t extended_modifier;
|
|
#define RTAS_LOG_V6_EPOW_XMODIFIER_SYSTEM_WIDE 0
|
|
#define RTAS_LOG_V6_EPOW_XMODIFIER_PARTITION_SPECIFIC 1
|
|
uint8_t _resv;
|
|
uint64_t reason_code;
|
|
} QEMU_PACKED;
|
|
|
|
struct epow_log_full {
|
|
struct rtas_error_log hdr;
|
|
struct rtas_event_log_v6 v6hdr;
|
|
struct rtas_event_log_v6_maina maina;
|
|
struct rtas_event_log_v6_mainb mainb;
|
|
struct rtas_event_log_v6_epow epow;
|
|
} QEMU_PACKED;
|
|
|
|
struct rtas_event_log_v6_hp {
|
|
#define RTAS_LOG_V6_SECTION_ID_HOTPLUG 0x4850 /* HP */
|
|
struct rtas_event_log_v6_section_header hdr;
|
|
uint8_t hotplug_type;
|
|
#define RTAS_LOG_V6_HP_TYPE_CPU 1
|
|
#define RTAS_LOG_V6_HP_TYPE_MEMORY 2
|
|
#define RTAS_LOG_V6_HP_TYPE_SLOT 3
|
|
#define RTAS_LOG_V6_HP_TYPE_PHB 4
|
|
#define RTAS_LOG_V6_HP_TYPE_PCI 5
|
|
uint8_t hotplug_action;
|
|
#define RTAS_LOG_V6_HP_ACTION_ADD 1
|
|
#define RTAS_LOG_V6_HP_ACTION_REMOVE 2
|
|
uint8_t hotplug_identifier;
|
|
#define RTAS_LOG_V6_HP_ID_DRC_NAME 1
|
|
#define RTAS_LOG_V6_HP_ID_DRC_INDEX 2
|
|
#define RTAS_LOG_V6_HP_ID_DRC_COUNT 3
|
|
uint8_t reserved;
|
|
union {
|
|
uint32_t index;
|
|
uint32_t count;
|
|
char name[1];
|
|
} drc;
|
|
} QEMU_PACKED;
|
|
|
|
struct hp_log_full {
|
|
struct rtas_error_log hdr;
|
|
struct rtas_event_log_v6 v6hdr;
|
|
struct rtas_event_log_v6_maina maina;
|
|
struct rtas_event_log_v6_mainb mainb;
|
|
struct rtas_event_log_v6_hp hp;
|
|
} QEMU_PACKED;
|
|
|
|
typedef enum EventClass {
|
|
EVENT_CLASS_INTERNAL_ERRORS = 0,
|
|
EVENT_CLASS_EPOW = 1,
|
|
EVENT_CLASS_RESERVED = 2,
|
|
EVENT_CLASS_HOT_PLUG = 3,
|
|
EVENT_CLASS_IO = 4,
|
|
EVENT_CLASS_MAX
|
|
} EventClassIndex;
|
|
#define EVENT_CLASS_MASK(index) (1 << (31 - index))
|
|
|
|
static const char * const event_names[EVENT_CLASS_MAX] = {
|
|
[EVENT_CLASS_INTERNAL_ERRORS] = "internal-errors",
|
|
[EVENT_CLASS_EPOW] = "epow-events",
|
|
[EVENT_CLASS_HOT_PLUG] = "hot-plug-events",
|
|
[EVENT_CLASS_IO] = "ibm,io-events",
|
|
};
|
|
|
|
struct sPAPREventSource {
|
|
int irq;
|
|
uint32_t mask;
|
|
bool enabled;
|
|
};
|
|
|
|
static sPAPREventSource *spapr_event_sources_new(void)
|
|
{
|
|
return g_new0(sPAPREventSource, EVENT_CLASS_MAX);
|
|
}
|
|
|
|
static void spapr_event_sources_register(sPAPREventSource *event_sources,
|
|
EventClassIndex index, int irq)
|
|
{
|
|
/* we only support 1 irq per event class at the moment */
|
|
g_assert(event_sources);
|
|
g_assert(!event_sources[index].enabled);
|
|
event_sources[index].irq = irq;
|
|
event_sources[index].mask = EVENT_CLASS_MASK(index);
|
|
event_sources[index].enabled = true;
|
|
}
|
|
|
|
static const sPAPREventSource *
|
|
spapr_event_sources_get_source(sPAPREventSource *event_sources,
|
|
EventClassIndex index)
|
|
{
|
|
g_assert(index < EVENT_CLASS_MAX);
|
|
g_assert(event_sources);
|
|
|
|
return &event_sources[index];
|
|
}
|
|
|
|
void spapr_dt_events(sPAPRMachineState *spapr, void *fdt)
|
|
{
|
|
uint32_t irq_ranges[EVENT_CLASS_MAX * 2];
|
|
int i, count = 0, event_sources;
|
|
sPAPREventSource *events = spapr->event_sources;
|
|
|
|
g_assert(events);
|
|
|
|
_FDT(event_sources = fdt_add_subnode(fdt, 0, "event-sources"));
|
|
|
|
for (i = 0, count = 0; i < EVENT_CLASS_MAX; i++) {
|
|
int node_offset;
|
|
uint32_t interrupts[2];
|
|
const sPAPREventSource *source =
|
|
spapr_event_sources_get_source(events, i);
|
|
const char *source_name = event_names[i];
|
|
|
|
if (!source->enabled) {
|
|
continue;
|
|
}
|
|
|
|
interrupts[0] = cpu_to_be32(source->irq);
|
|
interrupts[1] = 0;
|
|
|
|
_FDT(node_offset = fdt_add_subnode(fdt, event_sources, source_name));
|
|
_FDT(fdt_setprop(fdt, node_offset, "interrupts", interrupts,
|
|
sizeof(interrupts)));
|
|
|
|
irq_ranges[count++] = interrupts[0];
|
|
irq_ranges[count++] = cpu_to_be32(1);
|
|
}
|
|
|
|
irq_ranges[count] = cpu_to_be32(count);
|
|
count++;
|
|
|
|
_FDT((fdt_setprop(fdt, event_sources, "interrupt-controller", NULL, 0)));
|
|
_FDT((fdt_setprop_cell(fdt, event_sources, "#interrupt-cells", 2)));
|
|
_FDT((fdt_setprop(fdt, event_sources, "interrupt-ranges",
|
|
irq_ranges, count * sizeof(uint32_t))));
|
|
}
|
|
|
|
static const sPAPREventSource *
|
|
rtas_event_log_to_source(sPAPRMachineState *spapr, int log_type)
|
|
{
|
|
const sPAPREventSource *source;
|
|
|
|
g_assert(spapr->event_sources);
|
|
|
|
switch (log_type) {
|
|
case RTAS_LOG_TYPE_HOTPLUG:
|
|
source = spapr_event_sources_get_source(spapr->event_sources,
|
|
EVENT_CLASS_HOT_PLUG);
|
|
if (spapr_ovec_test(spapr->ov5_cas, OV5_HP_EVT)) {
|
|
g_assert(source->enabled);
|
|
break;
|
|
}
|
|
/* fall back to epow for legacy hotplug interrupt source */
|
|
case RTAS_LOG_TYPE_EPOW:
|
|
source = spapr_event_sources_get_source(spapr->event_sources,
|
|
EVENT_CLASS_EPOW);
|
|
break;
|
|
default:
|
|
source = NULL;
|
|
}
|
|
|
|
return source;
|
|
}
|
|
|
|
static int rtas_event_log_to_irq(sPAPRMachineState *spapr, int log_type)
|
|
{
|
|
const sPAPREventSource *source;
|
|
|
|
source = rtas_event_log_to_source(spapr, log_type);
|
|
g_assert(source);
|
|
g_assert(source->enabled);
|
|
|
|
return source->irq;
|
|
}
|
|
|
|
static void rtas_event_log_queue(int log_type, void *data, bool exception)
|
|
{
|
|
sPAPRMachineState *spapr = SPAPR_MACHINE(qdev_get_machine());
|
|
sPAPREventLogEntry *entry = g_new(sPAPREventLogEntry, 1);
|
|
|
|
g_assert(data);
|
|
entry->log_type = log_type;
|
|
entry->exception = exception;
|
|
entry->data = data;
|
|
QTAILQ_INSERT_TAIL(&spapr->pending_events, entry, next);
|
|
}
|
|
|
|
static sPAPREventLogEntry *rtas_event_log_dequeue(uint32_t event_mask,
|
|
bool exception)
|
|
{
|
|
sPAPRMachineState *spapr = SPAPR_MACHINE(qdev_get_machine());
|
|
sPAPREventLogEntry *entry = NULL;
|
|
|
|
QTAILQ_FOREACH(entry, &spapr->pending_events, next) {
|
|
const sPAPREventSource *source =
|
|
rtas_event_log_to_source(spapr, entry->log_type);
|
|
|
|
if (entry->exception != exception) {
|
|
continue;
|
|
}
|
|
|
|
if (source->mask & event_mask) {
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (entry) {
|
|
QTAILQ_REMOVE(&spapr->pending_events, entry, next);
|
|
}
|
|
|
|
return entry;
|
|
}
|
|
|
|
static bool rtas_event_log_contains(uint32_t event_mask, bool exception)
|
|
{
|
|
sPAPRMachineState *spapr = SPAPR_MACHINE(qdev_get_machine());
|
|
sPAPREventLogEntry *entry = NULL;
|
|
|
|
QTAILQ_FOREACH(entry, &spapr->pending_events, next) {
|
|
const sPAPREventSource *source =
|
|
rtas_event_log_to_source(spapr, entry->log_type);
|
|
|
|
if (entry->exception != exception) {
|
|
continue;
|
|
}
|
|
|
|
if (source->mask & event_mask) {
|
|
return true;
|
|
}
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
static uint32_t next_plid;
|
|
|
|
static void spapr_init_v6hdr(struct rtas_event_log_v6 *v6hdr)
|
|
{
|
|
v6hdr->b0 = RTAS_LOG_V6_B0_VALID | RTAS_LOG_V6_B0_NEW_LOG
|
|
| RTAS_LOG_V6_B0_BIGENDIAN;
|
|
v6hdr->b2 = RTAS_LOG_V6_B2_POWERPC_FORMAT
|
|
| RTAS_LOG_V6_B2_LOG_FORMAT_PLATFORM_EVENT;
|
|
v6hdr->company = cpu_to_be32(RTAS_LOG_V6_COMPANY_IBM);
|
|
}
|
|
|
|
static void spapr_init_maina(struct rtas_event_log_v6_maina *maina,
|
|
int section_count)
|
|
{
|
|
sPAPRMachineState *spapr = SPAPR_MACHINE(qdev_get_machine());
|
|
struct tm tm;
|
|
int year;
|
|
|
|
maina->hdr.section_id = cpu_to_be16(RTAS_LOG_V6_SECTION_ID_MAINA);
|
|
maina->hdr.section_length = cpu_to_be16(sizeof(*maina));
|
|
/* FIXME: section version, subtype and creator id? */
|
|
spapr_rtc_read(spapr->rtc, &tm, NULL);
|
|
year = tm.tm_year + 1900;
|
|
maina->creation_date = cpu_to_be32((to_bcd(year / 100) << 24)
|
|
| (to_bcd(year % 100) << 16)
|
|
| (to_bcd(tm.tm_mon + 1) << 8)
|
|
| to_bcd(tm.tm_mday));
|
|
maina->creation_time = cpu_to_be32((to_bcd(tm.tm_hour) << 24)
|
|
| (to_bcd(tm.tm_min) << 16)
|
|
| (to_bcd(tm.tm_sec) << 8));
|
|
maina->creator_id = 'H'; /* Hypervisor */
|
|
maina->section_count = section_count;
|
|
maina->plid = next_plid++;
|
|
}
|
|
|
|
static void spapr_powerdown_req(Notifier *n, void *opaque)
|
|
{
|
|
sPAPRMachineState *spapr = SPAPR_MACHINE(qdev_get_machine());
|
|
struct rtas_error_log *hdr;
|
|
struct rtas_event_log_v6 *v6hdr;
|
|
struct rtas_event_log_v6_maina *maina;
|
|
struct rtas_event_log_v6_mainb *mainb;
|
|
struct rtas_event_log_v6_epow *epow;
|
|
struct epow_log_full *new_epow;
|
|
|
|
new_epow = g_malloc0(sizeof(*new_epow));
|
|
hdr = &new_epow->hdr;
|
|
v6hdr = &new_epow->v6hdr;
|
|
maina = &new_epow->maina;
|
|
mainb = &new_epow->mainb;
|
|
epow = &new_epow->epow;
|
|
|
|
hdr->summary = cpu_to_be32(RTAS_LOG_VERSION_6
|
|
| RTAS_LOG_SEVERITY_EVENT
|
|
| RTAS_LOG_DISPOSITION_NOT_RECOVERED
|
|
| RTAS_LOG_OPTIONAL_PART_PRESENT
|
|
| RTAS_LOG_TYPE_EPOW);
|
|
hdr->extended_length = cpu_to_be32(sizeof(*new_epow)
|
|
- sizeof(new_epow->hdr));
|
|
|
|
spapr_init_v6hdr(v6hdr);
|
|
spapr_init_maina(maina, 3 /* Main-A, Main-B and EPOW */);
|
|
|
|
mainb->hdr.section_id = cpu_to_be16(RTAS_LOG_V6_SECTION_ID_MAINB);
|
|
mainb->hdr.section_length = cpu_to_be16(sizeof(*mainb));
|
|
/* FIXME: section version, subtype and creator id? */
|
|
mainb->subsystem_id = 0xa0; /* External environment */
|
|
mainb->event_severity = 0x00; /* Informational / non-error */
|
|
mainb->event_subtype = 0xd0; /* Normal shutdown */
|
|
|
|
epow->hdr.section_id = cpu_to_be16(RTAS_LOG_V6_SECTION_ID_EPOW);
|
|
epow->hdr.section_length = cpu_to_be16(sizeof(*epow));
|
|
epow->hdr.section_version = 2; /* includes extended modifier */
|
|
/* FIXME: section subtype and creator id? */
|
|
epow->sensor_value = RTAS_LOG_V6_EPOW_ACTION_SYSTEM_SHUTDOWN;
|
|
epow->event_modifier = RTAS_LOG_V6_EPOW_MODIFIER_NORMAL;
|
|
epow->extended_modifier = RTAS_LOG_V6_EPOW_XMODIFIER_PARTITION_SPECIFIC;
|
|
|
|
rtas_event_log_queue(RTAS_LOG_TYPE_EPOW, new_epow, true);
|
|
|
|
qemu_irq_pulse(xics_get_qirq(spapr->xics,
|
|
rtas_event_log_to_irq(spapr,
|
|
RTAS_LOG_TYPE_EPOW)));
|
|
}
|
|
|
|
static void spapr_hotplug_set_signalled(uint32_t drc_index)
|
|
{
|
|
sPAPRDRConnector *drc = spapr_dr_connector_by_index(drc_index);
|
|
sPAPRDRConnectorClass *drck = SPAPR_DR_CONNECTOR_GET_CLASS(drc);
|
|
drck->set_signalled(drc);
|
|
}
|
|
|
|
static void spapr_hotplug_req_event(uint8_t hp_id, uint8_t hp_action,
|
|
sPAPRDRConnectorType drc_type,
|
|
uint32_t drc)
|
|
{
|
|
sPAPRMachineState *spapr = SPAPR_MACHINE(qdev_get_machine());
|
|
struct hp_log_full *new_hp;
|
|
struct rtas_error_log *hdr;
|
|
struct rtas_event_log_v6 *v6hdr;
|
|
struct rtas_event_log_v6_maina *maina;
|
|
struct rtas_event_log_v6_mainb *mainb;
|
|
struct rtas_event_log_v6_hp *hp;
|
|
|
|
new_hp = g_malloc0(sizeof(struct hp_log_full));
|
|
hdr = &new_hp->hdr;
|
|
v6hdr = &new_hp->v6hdr;
|
|
maina = &new_hp->maina;
|
|
mainb = &new_hp->mainb;
|
|
hp = &new_hp->hp;
|
|
|
|
hdr->summary = cpu_to_be32(RTAS_LOG_VERSION_6
|
|
| RTAS_LOG_SEVERITY_EVENT
|
|
| RTAS_LOG_DISPOSITION_NOT_RECOVERED
|
|
| RTAS_LOG_OPTIONAL_PART_PRESENT
|
|
| RTAS_LOG_INITIATOR_HOTPLUG
|
|
| RTAS_LOG_TYPE_HOTPLUG);
|
|
hdr->extended_length = cpu_to_be32(sizeof(*new_hp)
|
|
- sizeof(new_hp->hdr));
|
|
|
|
spapr_init_v6hdr(v6hdr);
|
|
spapr_init_maina(maina, 3 /* Main-A, Main-B, HP */);
|
|
|
|
mainb->hdr.section_id = cpu_to_be16(RTAS_LOG_V6_SECTION_ID_MAINB);
|
|
mainb->hdr.section_length = cpu_to_be16(sizeof(*mainb));
|
|
mainb->subsystem_id = 0x80; /* External environment */
|
|
mainb->event_severity = 0x00; /* Informational / non-error */
|
|
mainb->event_subtype = 0x00; /* Normal shutdown */
|
|
|
|
hp->hdr.section_id = cpu_to_be16(RTAS_LOG_V6_SECTION_ID_HOTPLUG);
|
|
hp->hdr.section_length = cpu_to_be16(sizeof(*hp));
|
|
hp->hdr.section_version = 1; /* includes extended modifier */
|
|
hp->hotplug_action = hp_action;
|
|
hp->hotplug_identifier = hp_id;
|
|
|
|
switch (drc_type) {
|
|
case SPAPR_DR_CONNECTOR_TYPE_PCI:
|
|
hp->hotplug_type = RTAS_LOG_V6_HP_TYPE_PCI;
|
|
if (hp->hotplug_action == RTAS_LOG_V6_HP_ACTION_ADD) {
|
|
spapr_hotplug_set_signalled(drc);
|
|
}
|
|
break;
|
|
case SPAPR_DR_CONNECTOR_TYPE_LMB:
|
|
hp->hotplug_type = RTAS_LOG_V6_HP_TYPE_MEMORY;
|
|
break;
|
|
case SPAPR_DR_CONNECTOR_TYPE_CPU:
|
|
hp->hotplug_type = RTAS_LOG_V6_HP_TYPE_CPU;
|
|
break;
|
|
default:
|
|
/* we shouldn't be signaling hotplug events for resources
|
|
* that don't support them
|
|
*/
|
|
g_assert(false);
|
|
return;
|
|
}
|
|
|
|
if (hp_id == RTAS_LOG_V6_HP_ID_DRC_COUNT) {
|
|
hp->drc.count = cpu_to_be32(drc);
|
|
} else if (hp_id == RTAS_LOG_V6_HP_ID_DRC_INDEX) {
|
|
hp->drc.index = cpu_to_be32(drc);
|
|
}
|
|
|
|
rtas_event_log_queue(RTAS_LOG_TYPE_HOTPLUG, new_hp, true);
|
|
|
|
qemu_irq_pulse(xics_get_qirq(spapr->xics,
|
|
rtas_event_log_to_irq(spapr,
|
|
RTAS_LOG_TYPE_HOTPLUG)));
|
|
}
|
|
|
|
void spapr_hotplug_req_add_by_index(sPAPRDRConnector *drc)
|
|
{
|
|
sPAPRDRConnectorClass *drck = SPAPR_DR_CONNECTOR_GET_CLASS(drc);
|
|
sPAPRDRConnectorType drc_type = drck->get_type(drc);
|
|
uint32_t index = drck->get_index(drc);
|
|
|
|
spapr_hotplug_req_event(RTAS_LOG_V6_HP_ID_DRC_INDEX,
|
|
RTAS_LOG_V6_HP_ACTION_ADD, drc_type, index);
|
|
}
|
|
|
|
void spapr_hotplug_req_remove_by_index(sPAPRDRConnector *drc)
|
|
{
|
|
sPAPRDRConnectorClass *drck = SPAPR_DR_CONNECTOR_GET_CLASS(drc);
|
|
sPAPRDRConnectorType drc_type = drck->get_type(drc);
|
|
uint32_t index = drck->get_index(drc);
|
|
|
|
spapr_hotplug_req_event(RTAS_LOG_V6_HP_ID_DRC_INDEX,
|
|
RTAS_LOG_V6_HP_ACTION_REMOVE, drc_type, index);
|
|
}
|
|
|
|
void spapr_hotplug_req_add_by_count(sPAPRDRConnectorType drc_type,
|
|
uint32_t count)
|
|
{
|
|
spapr_hotplug_req_event(RTAS_LOG_V6_HP_ID_DRC_COUNT,
|
|
RTAS_LOG_V6_HP_ACTION_ADD, drc_type, count);
|
|
}
|
|
|
|
void spapr_hotplug_req_remove_by_count(sPAPRDRConnectorType drc_type,
|
|
uint32_t count)
|
|
{
|
|
spapr_hotplug_req_event(RTAS_LOG_V6_HP_ID_DRC_COUNT,
|
|
RTAS_LOG_V6_HP_ACTION_REMOVE, drc_type, count);
|
|
}
|
|
|
|
static void check_exception(PowerPCCPU *cpu, sPAPRMachineState *spapr,
|
|
uint32_t token, uint32_t nargs,
|
|
target_ulong args,
|
|
uint32_t nret, target_ulong rets)
|
|
{
|
|
uint32_t mask, buf, len, event_len;
|
|
uint64_t xinfo;
|
|
sPAPREventLogEntry *event;
|
|
struct rtas_error_log *hdr;
|
|
int i;
|
|
|
|
if ((nargs < 6) || (nargs > 7) || nret != 1) {
|
|
rtas_st(rets, 0, RTAS_OUT_PARAM_ERROR);
|
|
return;
|
|
}
|
|
|
|
xinfo = rtas_ld(args, 1);
|
|
mask = rtas_ld(args, 2);
|
|
buf = rtas_ld(args, 4);
|
|
len = rtas_ld(args, 5);
|
|
if (nargs == 7) {
|
|
xinfo |= (uint64_t)rtas_ld(args, 6) << 32;
|
|
}
|
|
|
|
event = rtas_event_log_dequeue(mask, true);
|
|
if (!event) {
|
|
goto out_no_events;
|
|
}
|
|
|
|
hdr = event->data;
|
|
event_len = be32_to_cpu(hdr->extended_length) + sizeof(*hdr);
|
|
|
|
if (event_len < len) {
|
|
len = event_len;
|
|
}
|
|
|
|
cpu_physical_memory_write(buf, event->data, len);
|
|
rtas_st(rets, 0, RTAS_OUT_SUCCESS);
|
|
g_free(event->data);
|
|
g_free(event);
|
|
|
|
/* according to PAPR+, the IRQ must be left asserted, or re-asserted, if
|
|
* there are still pending events to be fetched via check-exception. We
|
|
* do the latter here, since our code relies on edge-triggered
|
|
* interrupts.
|
|
*/
|
|
for (i = 0; i < EVENT_CLASS_MAX; i++) {
|
|
if (rtas_event_log_contains(EVENT_CLASS_MASK(i), true)) {
|
|
const sPAPREventSource *source =
|
|
spapr_event_sources_get_source(spapr->event_sources, i);
|
|
|
|
g_assert(source->enabled);
|
|
qemu_irq_pulse(xics_get_qirq(spapr->xics, source->irq));
|
|
}
|
|
}
|
|
|
|
return;
|
|
|
|
out_no_events:
|
|
rtas_st(rets, 0, RTAS_OUT_NO_ERRORS_FOUND);
|
|
}
|
|
|
|
static void event_scan(PowerPCCPU *cpu, sPAPRMachineState *spapr,
|
|
uint32_t token, uint32_t nargs,
|
|
target_ulong args,
|
|
uint32_t nret, target_ulong rets)
|
|
{
|
|
uint32_t mask, buf, len, event_len;
|
|
sPAPREventLogEntry *event;
|
|
struct rtas_error_log *hdr;
|
|
|
|
if (nargs != 4 || nret != 1) {
|
|
rtas_st(rets, 0, RTAS_OUT_PARAM_ERROR);
|
|
return;
|
|
}
|
|
|
|
mask = rtas_ld(args, 0);
|
|
buf = rtas_ld(args, 2);
|
|
len = rtas_ld(args, 3);
|
|
|
|
event = rtas_event_log_dequeue(mask, false);
|
|
if (!event) {
|
|
goto out_no_events;
|
|
}
|
|
|
|
hdr = event->data;
|
|
event_len = be32_to_cpu(hdr->extended_length) + sizeof(*hdr);
|
|
|
|
if (event_len < len) {
|
|
len = event_len;
|
|
}
|
|
|
|
cpu_physical_memory_write(buf, event->data, len);
|
|
rtas_st(rets, 0, RTAS_OUT_SUCCESS);
|
|
g_free(event->data);
|
|
g_free(event);
|
|
return;
|
|
|
|
out_no_events:
|
|
rtas_st(rets, 0, RTAS_OUT_NO_ERRORS_FOUND);
|
|
}
|
|
|
|
void spapr_events_init(sPAPRMachineState *spapr)
|
|
{
|
|
QTAILQ_INIT(&spapr->pending_events);
|
|
|
|
spapr->event_sources = spapr_event_sources_new();
|
|
|
|
spapr_event_sources_register(spapr->event_sources, EVENT_CLASS_EPOW,
|
|
xics_spapr_alloc(spapr->xics, 0, false,
|
|
&error_fatal));
|
|
|
|
/* NOTE: if machine supports modern/dedicated hotplug event source,
|
|
* we add it to the device-tree unconditionally. This means we may
|
|
* have cases where the source is enabled in QEMU, but unused by the
|
|
* guest because it does not support modern hotplug events, so we
|
|
* take care to rely on checking for negotiation of OV5_HP_EVT option
|
|
* before attempting to use it to signal events, rather than simply
|
|
* checking that it's enabled.
|
|
*/
|
|
if (spapr->use_hotplug_event_source) {
|
|
spapr_event_sources_register(spapr->event_sources, EVENT_CLASS_HOT_PLUG,
|
|
xics_spapr_alloc(spapr->xics, 0, false,
|
|
&error_fatal));
|
|
}
|
|
|
|
spapr->epow_notifier.notify = spapr_powerdown_req;
|
|
qemu_register_powerdown_notifier(&spapr->epow_notifier);
|
|
spapr_rtas_register(RTAS_CHECK_EXCEPTION, "check-exception",
|
|
check_exception);
|
|
spapr_rtas_register(RTAS_EVENT_SCAN, "event-scan", event_scan);
|
|
}
|