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-rw-r--r--accel/accel-common.c4
-rw-r--r--accel/accel-qmp.c35
-rw-r--r--accel/accel-system.c28
-rw-r--r--accel/dummy-cpus.c1
-rw-r--r--accel/dummy-cpus.h14
-rw-r--r--accel/hvf/hvf-accel-ops.c329
-rw-r--r--accel/hvf/hvf-all.c269
-rw-r--r--accel/hvf/trace-events7
-rw-r--r--accel/hvf/trace.h2
-rw-r--r--accel/kvm/kvm-accel-ops.c3
-rw-r--r--accel/kvm/kvm-all.c63
-rw-r--r--accel/meson.build2
-rw-r--r--accel/qtest/qtest.c7
-rw-r--r--accel/stubs/kvm-stub.c9
-rw-r--r--accel/stubs/meson.build2
-rw-r--r--accel/stubs/nvmm-stub.c12
-rw-r--r--accel/stubs/whpx-stub.c12
-rw-r--r--accel/tcg/internal-common.h2
-rw-r--r--accel/tcg/meson.build1
-rw-r--r--accel/tcg/monitor.c209
-rw-r--r--accel/tcg/plugin-gen.c30
-rw-r--r--accel/tcg/tcg-accel-ops-mttcg.c1
-rw-r--r--accel/tcg/tcg-accel-ops.c12
-rw-r--r--accel/tcg/tcg-all.c9
-rw-r--r--accel/tcg/tcg-stats.c219
-rw-r--r--accel/xen/xen-all.c9
26 files changed, 760 insertions, 531 deletions
diff --git a/accel/accel-common.c b/accel/accel-common.c
index 4894b98..850c5ab 100644
--- a/accel/accel-common.c
+++ b/accel/accel-common.c
@@ -10,7 +10,9 @@
#include "qemu/osdep.h"
#include "qemu/accel.h"
#include "qemu/target-info.h"
+#include "accel/accel-ops.h"
#include "accel/accel-cpu.h"
+#include "accel/accel-cpu-ops.h"
#include "accel-internal.h"
/* Lookup AccelClass from opt_name. Returns NULL if not found */
@@ -124,7 +126,7 @@ int accel_supported_gdbstub_sstep_flags(void)
AccelState *accel = current_accel();
AccelClass *acc = ACCEL_GET_CLASS(accel);
if (acc->gdbstub_supported_sstep_flags) {
- return acc->gdbstub_supported_sstep_flags();
+ return acc->gdbstub_supported_sstep_flags(accel);
}
return 0;
}
diff --git a/accel/accel-qmp.c b/accel/accel-qmp.c
new file mode 100644
index 0000000..5fb70c6
--- /dev/null
+++ b/accel/accel-qmp.c
@@ -0,0 +1,35 @@
+/*
+ * QMP commands related to accelerators
+ *
+ * Copyright (c) Linaro
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
+
+#include "qemu/osdep.h"
+#include "qemu/accel.h"
+#include "qapi/type-helpers.h"
+#include "qapi/qapi-commands-accelerator.h"
+#include "accel/accel-ops.h"
+#include "accel/accel-cpu-ops.h"
+#include "hw/core/cpu.h"
+
+HumanReadableText *qmp_x_accel_stats(Error **errp)
+{
+ AccelState *accel = current_accel();
+ AccelClass *acc = ACCEL_GET_CLASS(accel);
+ g_autoptr(GString) buf = g_string_new("");
+
+ if (acc->get_stats) {
+ acc->get_stats(accel, buf);
+ }
+ if (acc->ops->get_vcpu_stats) {
+ CPUState *cpu;
+
+ CPU_FOREACH(cpu) {
+ acc->ops->get_vcpu_stats(cpu, buf);
+ }
+ }
+
+ return human_readable_text_from_str(buf);
+}
diff --git a/accel/accel-system.c b/accel/accel-system.c
index a0f562a..1e97c64 100644
--- a/accel/accel-system.c
+++ b/accel/accel-system.c
@@ -25,8 +25,12 @@
#include "qemu/osdep.h"
#include "qemu/accel.h"
+#include "qapi/qapi-commands-accelerator.h"
+#include "monitor/monitor.h"
#include "hw/boards.h"
-#include "system/accel-ops.h"
+#include "hw/core/cpu.h"
+#include "accel/accel-ops.h"
+#include "accel/accel-cpu-ops.h"
#include "system/cpus.h"
#include "qemu/error-report.h"
#include "accel-internal.h"
@@ -37,7 +41,7 @@ int accel_init_machine(AccelState *accel, MachineState *ms)
int ret;
ms->accelerator = accel;
*(acc->allowed) = true;
- ret = acc->init_machine(ms);
+ ret = acc->init_machine(accel, ms);
if (ret < 0) {
ms->accelerator = NULL;
*(acc->allowed) = false;
@@ -58,7 +62,16 @@ void accel_setup_post(MachineState *ms)
AccelState *accel = ms->accelerator;
AccelClass *acc = ACCEL_GET_CLASS(accel);
if (acc->setup_post) {
- acc->setup_post(ms, accel);
+ acc->setup_post(accel);
+ }
+}
+
+void accel_pre_resume(MachineState *ms, bool step_pending)
+{
+ AccelState *accel = ms->accelerator;
+ AccelClass *acc = ACCEL_GET_CLASS(accel);
+ if (acc->pre_resume_vm) {
+ acc->pre_resume_vm(accel, step_pending);
}
}
@@ -85,17 +98,24 @@ void accel_init_ops_interfaces(AccelClass *ac)
* non-NULL create_vcpu_thread operation.
*/
ops = ACCEL_OPS_CLASS(oc);
+ ac->ops = ops;
if (ops->ops_init) {
- ops->ops_init(ops);
+ ops->ops_init(ac);
}
cpus_register_accel(ops);
}
+static void accel_ops_class_init(ObjectClass *oc, const void *data)
+{
+ monitor_register_hmp_info_hrt("accel", qmp_x_accel_stats);
+}
+
static const TypeInfo accel_ops_type_info = {
.name = TYPE_ACCEL_OPS,
.parent = TYPE_OBJECT,
.abstract = true,
.class_size = sizeof(AccelOpsClass),
+ .class_init = accel_ops_class_init,
};
static void accel_system_register_types(void)
diff --git a/accel/dummy-cpus.c b/accel/dummy-cpus.c
index 8672761..03cfc0f 100644
--- a/accel/dummy-cpus.c
+++ b/accel/dummy-cpus.c
@@ -17,6 +17,7 @@
#include "qemu/guest-random.h"
#include "qemu/main-loop.h"
#include "hw/core/cpu.h"
+#include "accel/dummy-cpus.h"
static void *dummy_cpu_thread_fn(void *arg)
{
diff --git a/accel/dummy-cpus.h b/accel/dummy-cpus.h
new file mode 100644
index 0000000..d18dd0f
--- /dev/null
+++ b/accel/dummy-cpus.h
@@ -0,0 +1,14 @@
+/*
+ * Dummy cpu thread code
+ *
+ * Copyright IBM, Corp. 2011
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
+
+#ifndef ACCEL_DUMMY_CPUS_H
+#define ACCEL_DUMMY_CPUS_H
+
+void dummy_start_vcpu_thread(CPUState *cpu);
+
+#endif
diff --git a/accel/hvf/hvf-accel-ops.c b/accel/hvf/hvf-accel-ops.c
index d60446b..d488d6a 100644
--- a/accel/hvf/hvf-accel-ops.c
+++ b/accel/hvf/hvf-accel-ops.c
@@ -48,17 +48,17 @@
*/
#include "qemu/osdep.h"
-#include "qemu/error-report.h"
+#include "qemu/guest-random.h"
#include "qemu/main-loop.h"
-#include "system/address-spaces.h"
+#include "qemu/queue.h"
#include "gdbstub/enums.h"
-#include "hw/boards.h"
-#include "system/accel-ops.h"
+#include "exec/cpu-common.h"
+#include "hw/core/cpu.h"
+#include "accel/accel-cpu-ops.h"
#include "system/cpus.h"
#include "system/hvf.h"
#include "system/hvf_int.h"
-#include "system/runstate.h"
-#include "qemu/guest-random.h"
+#include <mach/mach_time.h>
HVFState *hvf_state;
@@ -78,138 +78,17 @@ hvf_slot *hvf_find_overlap_slot(uint64_t start, uint64_t size)
return NULL;
}
-struct mac_slot {
- int present;
- uint64_t size;
- uint64_t gpa_start;
- uint64_t gva;
-};
-
-struct mac_slot mac_slots[32];
-
-static int do_hvf_set_memory(hvf_slot *slot, hv_memory_flags_t flags)
-{
- struct mac_slot *macslot;
- hv_return_t ret;
-
- macslot = &mac_slots[slot->slot_id];
-
- if (macslot->present) {
- if (macslot->size != slot->size) {
- macslot->present = 0;
- ret = hv_vm_unmap(macslot->gpa_start, macslot->size);
- assert_hvf_ok(ret);
- }
- }
-
- if (!slot->size) {
- return 0;
- }
-
- macslot->present = 1;
- macslot->gpa_start = slot->start;
- macslot->size = slot->size;
- ret = hv_vm_map(slot->mem, slot->start, slot->size, flags);
- assert_hvf_ok(ret);
- return 0;
-}
-
-static void hvf_set_phys_mem(MemoryRegionSection *section, bool add)
-{
- hvf_slot *mem;
- MemoryRegion *area = section->mr;
- bool writable = !area->readonly && !area->rom_device;
- hv_memory_flags_t flags;
- uint64_t page_size = qemu_real_host_page_size();
-
- if (!memory_region_is_ram(area)) {
- if (writable) {
- return;
- } else if (!memory_region_is_romd(area)) {
- /*
- * If the memory device is not in romd_mode, then we actually want
- * to remove the hvf memory slot so all accesses will trap.
- */
- add = false;
- }
- }
-
- if (!QEMU_IS_ALIGNED(int128_get64(section->size), page_size) ||
- !QEMU_IS_ALIGNED(section->offset_within_address_space, page_size)) {
- /* Not page aligned, so we can not map as RAM */
- add = false;
- }
-
- mem = hvf_find_overlap_slot(
- section->offset_within_address_space,
- int128_get64(section->size));
-
- if (mem && add) {
- if (mem->size == int128_get64(section->size) &&
- mem->start == section->offset_within_address_space &&
- mem->mem == (memory_region_get_ram_ptr(area) +
- section->offset_within_region)) {
- return; /* Same region was attempted to register, go away. */
- }
- }
-
- /* Region needs to be reset. set the size to 0 and remap it. */
- if (mem) {
- mem->size = 0;
- if (do_hvf_set_memory(mem, 0)) {
- error_report("Failed to reset overlapping slot");
- abort();
- }
- }
-
- if (!add) {
- return;
- }
-
- if (area->readonly ||
- (!memory_region_is_ram(area) && memory_region_is_romd(area))) {
- flags = HV_MEMORY_READ | HV_MEMORY_EXEC;
- } else {
- flags = HV_MEMORY_READ | HV_MEMORY_WRITE | HV_MEMORY_EXEC;
- }
-
- /* Now make a new slot. */
- int x;
-
- for (x = 0; x < hvf_state->num_slots; ++x) {
- mem = &hvf_state->slots[x];
- if (!mem->size) {
- break;
- }
- }
-
- if (x == hvf_state->num_slots) {
- error_report("No free slots");
- abort();
- }
-
- mem->size = int128_get64(section->size);
- mem->mem = memory_region_get_ram_ptr(area) + section->offset_within_region;
- mem->start = section->offset_within_address_space;
- mem->region = area;
-
- if (do_hvf_set_memory(mem, flags)) {
- error_report("Error registering new memory slot");
- abort();
- }
-}
-
static void do_hvf_cpu_synchronize_state(CPUState *cpu, run_on_cpu_data arg)
{
- if (!cpu->accel->dirty) {
+ if (!cpu->vcpu_dirty) {
hvf_get_registers(cpu);
- cpu->accel->dirty = true;
+ cpu->vcpu_dirty = true;
}
}
static void hvf_cpu_synchronize_state(CPUState *cpu)
{
- if (!cpu->accel->dirty) {
+ if (!cpu->vcpu_dirty) {
run_on_cpu(cpu, do_hvf_cpu_synchronize_state, RUN_ON_CPU_NULL);
}
}
@@ -218,7 +97,7 @@ static void do_hvf_cpu_synchronize_set_dirty(CPUState *cpu,
run_on_cpu_data arg)
{
/* QEMU state is the reference, push it to HVF now and on next entry */
- cpu->accel->dirty = true;
+ cpu->vcpu_dirty = true;
}
static void hvf_cpu_synchronize_post_reset(CPUState *cpu)
@@ -236,147 +115,16 @@ static void hvf_cpu_synchronize_pre_loadvm(CPUState *cpu)
run_on_cpu(cpu, do_hvf_cpu_synchronize_set_dirty, RUN_ON_CPU_NULL);
}
-static void hvf_set_dirty_tracking(MemoryRegionSection *section, bool on)
-{
- hvf_slot *slot;
-
- slot = hvf_find_overlap_slot(
- section->offset_within_address_space,
- int128_get64(section->size));
-
- /* protect region against writes; begin tracking it */
- if (on) {
- slot->flags |= HVF_SLOT_LOG;
- hv_vm_protect((uintptr_t)slot->start, (size_t)slot->size,
- HV_MEMORY_READ | HV_MEMORY_EXEC);
- /* stop tracking region*/
- } else {
- slot->flags &= ~HVF_SLOT_LOG;
- hv_vm_protect((uintptr_t)slot->start, (size_t)slot->size,
- HV_MEMORY_READ | HV_MEMORY_WRITE | HV_MEMORY_EXEC);
- }
-}
-
-static void hvf_log_start(MemoryListener *listener,
- MemoryRegionSection *section, int old, int new)
-{
- if (old != 0) {
- return;
- }
-
- hvf_set_dirty_tracking(section, 1);
-}
-
-static void hvf_log_stop(MemoryListener *listener,
- MemoryRegionSection *section, int old, int new)
-{
- if (new != 0) {
- return;
- }
-
- hvf_set_dirty_tracking(section, 0);
-}
-
-static void hvf_log_sync(MemoryListener *listener,
- MemoryRegionSection *section)
-{
- /*
- * sync of dirty pages is handled elsewhere; just make sure we keep
- * tracking the region.
- */
- hvf_set_dirty_tracking(section, 1);
-}
-
-static void hvf_region_add(MemoryListener *listener,
- MemoryRegionSection *section)
-{
- hvf_set_phys_mem(section, true);
-}
-
-static void hvf_region_del(MemoryListener *listener,
- MemoryRegionSection *section)
-{
- hvf_set_phys_mem(section, false);
-}
-
-static MemoryListener hvf_memory_listener = {
- .name = "hvf",
- .priority = MEMORY_LISTENER_PRIORITY_ACCEL,
- .region_add = hvf_region_add,
- .region_del = hvf_region_del,
- .log_start = hvf_log_start,
- .log_stop = hvf_log_stop,
- .log_sync = hvf_log_sync,
-};
-
static void dummy_signal(int sig)
{
}
-bool hvf_allowed;
-
-static int hvf_accel_init(MachineState *ms)
+static void do_hvf_get_vcpu_exec_time(CPUState *cpu, run_on_cpu_data arg)
{
- int x;
- hv_return_t ret;
- HVFState *s;
- int pa_range = 36;
- MachineClass *mc = MACHINE_GET_CLASS(ms);
-
- if (mc->hvf_get_physical_address_range) {
- pa_range = mc->hvf_get_physical_address_range(ms);
- if (pa_range < 0) {
- return -EINVAL;
- }
- }
-
- ret = hvf_arch_vm_create(ms, (uint32_t)pa_range);
- assert_hvf_ok(ret);
-
- s = g_new0(HVFState, 1);
-
- s->num_slots = ARRAY_SIZE(s->slots);
- for (x = 0; x < s->num_slots; ++x) {
- s->slots[x].size = 0;
- s->slots[x].slot_id = x;
- }
-
- QTAILQ_INIT(&s->hvf_sw_breakpoints);
-
- hvf_state = s;
- memory_listener_register(&hvf_memory_listener, &address_space_memory);
-
- return hvf_arch_init();
-}
-
-static inline int hvf_gdbstub_sstep_flags(void)
-{
- return SSTEP_ENABLE | SSTEP_NOIRQ;
-}
-
-static void hvf_accel_class_init(ObjectClass *oc, const void *data)
-{
- AccelClass *ac = ACCEL_CLASS(oc);
- ac->name = "HVF";
- ac->init_machine = hvf_accel_init;
- ac->allowed = &hvf_allowed;
- ac->gdbstub_supported_sstep_flags = hvf_gdbstub_sstep_flags;
-}
-
-static const TypeInfo hvf_accel_type = {
- .name = TYPE_HVF_ACCEL,
- .parent = TYPE_ACCEL,
- .instance_size = sizeof(HVFState),
- .class_init = hvf_accel_class_init,
-};
-
-static void hvf_type_init(void)
-{
- type_register_static(&hvf_accel_type);
+ int r = hv_vcpu_get_exec_time(cpu->accel->fd, arg.host_ptr);
+ assert_hvf_ok(r);
}
-type_init(hvf_type_init);
-
static void hvf_vcpu_destroy(CPUState *cpu)
{
hv_return_t ret = hv_vcpu_destroy(cpu->accel->fd);
@@ -409,8 +157,8 @@ static int hvf_init_vcpu(CPUState *cpu)
#else
r = hv_vcpu_create(&cpu->accel->fd, HV_VCPU_DEFAULT);
#endif
- cpu->accel->dirty = true;
assert_hvf_ok(r);
+ cpu->vcpu_dirty = true;
cpu->accel->guest_debug_enabled = false;
@@ -476,6 +224,34 @@ static void hvf_start_vcpu_thread(CPUState *cpu)
cpu, QEMU_THREAD_JOINABLE);
}
+struct hvf_sw_breakpoint *hvf_find_sw_breakpoint(CPUState *cpu, vaddr pc)
+{
+ struct hvf_sw_breakpoint *bp;
+
+ QTAILQ_FOREACH(bp, &hvf_state->hvf_sw_breakpoints, entry) {
+ if (bp->pc == pc) {
+ return bp;
+ }
+ }
+ return NULL;
+}
+
+int hvf_sw_breakpoints_active(CPUState *cpu)
+{
+ return !QTAILQ_EMPTY(&hvf_state->hvf_sw_breakpoints);
+}
+
+static void do_hvf_update_guest_debug(CPUState *cpu, run_on_cpu_data arg)
+{
+ hvf_arch_update_guest_debug(cpu);
+}
+
+int hvf_update_guest_debug(CPUState *cpu)
+{
+ run_on_cpu(cpu, do_hvf_update_guest_debug, RUN_ON_CPU_NULL);
+ return 0;
+}
+
static int hvf_insert_breakpoint(CPUState *cpu, int type, vaddr addr, vaddr len)
{
struct hvf_sw_breakpoint *bp;
@@ -578,12 +354,28 @@ static void hvf_remove_all_breakpoints(CPUState *cpu)
}
}
+static void hvf_get_vcpu_stats(CPUState *cpu, GString *buf)
+{
+ uint64_t time_mach; /* units of mach_absolute_time() */
+
+ run_on_cpu(cpu, do_hvf_get_vcpu_exec_time, RUN_ON_CPU_HOST_PTR(&time_mach));
+
+ mach_timebase_info_data_t timebase;
+ mach_timebase_info(&timebase);
+ uint64_t time_ns = time_mach * timebase.numer / timebase.denom;
+
+ g_string_append_printf(buf, "HVF cumulative execution time: %llu.%.3llus\n",
+ time_ns / 1000000000,
+ (time_ns % 1000000000) / 1000000);
+}
+
static void hvf_accel_ops_class_init(ObjectClass *oc, const void *data)
{
AccelOpsClass *ops = ACCEL_OPS_CLASS(oc);
ops->create_vcpu_thread = hvf_start_vcpu_thread;
ops->kick_vcpu_thread = hvf_kick_vcpu_thread;
+ ops->handle_interrupt = generic_handle_interrupt;
ops->synchronize_post_reset = hvf_cpu_synchronize_post_reset;
ops->synchronize_post_init = hvf_cpu_synchronize_post_init;
@@ -595,7 +387,10 @@ static void hvf_accel_ops_class_init(ObjectClass *oc, const void *data)
ops->remove_all_breakpoints = hvf_remove_all_breakpoints;
ops->update_guest_debug = hvf_update_guest_debug;
ops->supports_guest_debug = hvf_arch_supports_guest_debug;
+
+ ops->get_vcpu_stats = hvf_get_vcpu_stats;
};
+
static const TypeInfo hvf_accel_ops_type = {
.name = ACCEL_OPS_NAME("hvf"),
@@ -603,8 +398,10 @@ static const TypeInfo hvf_accel_ops_type = {
.class_init = hvf_accel_ops_class_init,
.abstract = true,
};
+
static void hvf_accel_ops_register_types(void)
{
type_register_static(&hvf_accel_ops_type);
}
+
type_init(hvf_accel_ops_register_types);
diff --git a/accel/hvf/hvf-all.c b/accel/hvf/hvf-all.c
index 8c387fd..0a4b498 100644
--- a/accel/hvf/hvf-all.c
+++ b/accel/hvf/hvf-all.c
@@ -10,9 +10,25 @@
#include "qemu/osdep.h"
#include "qemu/error-report.h"
+#include "accel/accel-ops.h"
+#include "system/address-spaces.h"
+#include "system/memory.h"
#include "system/hvf.h"
#include "system/hvf_int.h"
#include "hw/core/cpu.h"
+#include "hw/boards.h"
+#include "trace.h"
+
+bool hvf_allowed;
+
+struct mac_slot {
+ int present;
+ uint64_t size;
+ uint64_t gpa_start;
+ uint64_t gva;
+};
+
+struct mac_slot mac_slots[32];
const char *hvf_return_string(hv_return_t ret)
{
@@ -42,30 +58,257 @@ void assert_hvf_ok_impl(hv_return_t ret, const char *file, unsigned int line,
abort();
}
-struct hvf_sw_breakpoint *hvf_find_sw_breakpoint(CPUState *cpu, vaddr pc)
+static int do_hvf_set_memory(hvf_slot *slot, hv_memory_flags_t flags)
{
- struct hvf_sw_breakpoint *bp;
+ struct mac_slot *macslot;
+ hv_return_t ret;
- QTAILQ_FOREACH(bp, &hvf_state->hvf_sw_breakpoints, entry) {
- if (bp->pc == pc) {
- return bp;
+ macslot = &mac_slots[slot->slot_id];
+
+ if (macslot->present) {
+ if (macslot->size != slot->size) {
+ macslot->present = 0;
+ trace_hvf_vm_unmap(macslot->gpa_start, macslot->size);
+ ret = hv_vm_unmap(macslot->gpa_start, macslot->size);
+ assert_hvf_ok(ret);
}
}
- return NULL;
+
+ if (!slot->size) {
+ return 0;
+ }
+
+ macslot->present = 1;
+ macslot->gpa_start = slot->start;
+ macslot->size = slot->size;
+ trace_hvf_vm_map(slot->start, slot->size, slot->mem, flags,
+ flags & HV_MEMORY_READ ? 'R' : '-',
+ flags & HV_MEMORY_WRITE ? 'W' : '-',
+ flags & HV_MEMORY_EXEC ? 'X' : '-');
+ ret = hv_vm_map(slot->mem, slot->start, slot->size, flags);
+ assert_hvf_ok(ret);
+ return 0;
}
-int hvf_sw_breakpoints_active(CPUState *cpu)
+static void hvf_set_phys_mem(MemoryRegionSection *section, bool add)
{
- return !QTAILQ_EMPTY(&hvf_state->hvf_sw_breakpoints);
+ hvf_slot *mem;
+ MemoryRegion *area = section->mr;
+ bool writable = !area->readonly && !area->rom_device;
+ hv_memory_flags_t flags;
+ uint64_t page_size = qemu_real_host_page_size();
+
+ if (!memory_region_is_ram(area)) {
+ if (writable) {
+ return;
+ } else if (!memory_region_is_romd(area)) {
+ /*
+ * If the memory device is not in romd_mode, then we actually want
+ * to remove the hvf memory slot so all accesses will trap.
+ */
+ add = false;
+ }
+ }
+
+ if (!QEMU_IS_ALIGNED(int128_get64(section->size), page_size) ||
+ !QEMU_IS_ALIGNED(section->offset_within_address_space, page_size)) {
+ /* Not page aligned, so we can not map as RAM */
+ add = false;
+ }
+
+ mem = hvf_find_overlap_slot(
+ section->offset_within_address_space,
+ int128_get64(section->size));
+
+ if (mem && add) {
+ if (mem->size == int128_get64(section->size) &&
+ mem->start == section->offset_within_address_space &&
+ mem->mem == (memory_region_get_ram_ptr(area) +
+ section->offset_within_region)) {
+ return; /* Same region was attempted to register, go away. */
+ }
+ }
+
+ /* Region needs to be reset. set the size to 0 and remap it. */
+ if (mem) {
+ mem->size = 0;
+ if (do_hvf_set_memory(mem, 0)) {
+ error_report("Failed to reset overlapping slot");
+ abort();
+ }
+ }
+
+ if (!add) {
+ return;
+ }
+
+ if (area->readonly ||
+ (!memory_region_is_ram(area) && memory_region_is_romd(area))) {
+ flags = HV_MEMORY_READ | HV_MEMORY_EXEC;
+ } else {
+ flags = HV_MEMORY_READ | HV_MEMORY_WRITE | HV_MEMORY_EXEC;
+ }
+
+ /* Now make a new slot. */
+ int x;
+
+ for (x = 0; x < hvf_state->num_slots; ++x) {
+ mem = &hvf_state->slots[x];
+ if (!mem->size) {
+ break;
+ }
+ }
+
+ if (x == hvf_state->num_slots) {
+ error_report("No free slots");
+ abort();
+ }
+
+ mem->size = int128_get64(section->size);
+ mem->mem = memory_region_get_ram_ptr(area) + section->offset_within_region;
+ mem->start = section->offset_within_address_space;
+ mem->region = area;
+
+ if (do_hvf_set_memory(mem, flags)) {
+ error_report("Error registering new memory slot");
+ abort();
+ }
}
-static void do_hvf_update_guest_debug(CPUState *cpu, run_on_cpu_data arg)
+static void hvf_set_dirty_tracking(MemoryRegionSection *section, bool on)
{
- hvf_arch_update_guest_debug(cpu);
+ hvf_slot *slot;
+
+ slot = hvf_find_overlap_slot(
+ section->offset_within_address_space,
+ int128_get64(section->size));
+
+ /* protect region against writes; begin tracking it */
+ if (on) {
+ slot->flags |= HVF_SLOT_LOG;
+ hv_vm_protect((uintptr_t)slot->start, (size_t)slot->size,
+ HV_MEMORY_READ | HV_MEMORY_EXEC);
+ /* stop tracking region*/
+ } else {
+ slot->flags &= ~HVF_SLOT_LOG;
+ hv_vm_protect((uintptr_t)slot->start, (size_t)slot->size,
+ HV_MEMORY_READ | HV_MEMORY_WRITE | HV_MEMORY_EXEC);
+ }
}
-int hvf_update_guest_debug(CPUState *cpu)
+static void hvf_log_start(MemoryListener *listener,
+ MemoryRegionSection *section, int old, int new)
{
- run_on_cpu(cpu, do_hvf_update_guest_debug, RUN_ON_CPU_NULL);
- return 0;
+ if (old != 0) {
+ return;
+ }
+
+ hvf_set_dirty_tracking(section, 1);
}
+
+static void hvf_log_stop(MemoryListener *listener,
+ MemoryRegionSection *section, int old, int new)
+{
+ if (new != 0) {
+ return;
+ }
+
+ hvf_set_dirty_tracking(section, 0);
+}
+
+static void hvf_log_sync(MemoryListener *listener,
+ MemoryRegionSection *section)
+{
+ /*
+ * sync of dirty pages is handled elsewhere; just make sure we keep
+ * tracking the region.
+ */
+ hvf_set_dirty_tracking(section, 1);
+}
+
+static void hvf_region_add(MemoryListener *listener,
+ MemoryRegionSection *section)
+{
+ hvf_set_phys_mem(section, true);
+}
+
+static void hvf_region_del(MemoryListener *listener,
+ MemoryRegionSection *section)
+{
+ hvf_set_phys_mem(section, false);
+}
+
+static MemoryListener hvf_memory_listener = {
+ .name = "hvf",
+ .priority = MEMORY_LISTENER_PRIORITY_ACCEL,
+ .region_add = hvf_region_add,
+ .region_del = hvf_region_del,
+ .log_start = hvf_log_start,
+ .log_stop = hvf_log_stop,
+ .log_sync = hvf_log_sync,
+};
+
+static int hvf_accel_init(AccelState *as, MachineState *ms)
+{
+ int x;
+ hv_return_t ret;
+ HVFState *s = HVF_STATE(as);
+ int pa_range = 36;
+ MachineClass *mc = MACHINE_GET_CLASS(ms);
+
+ if (mc->hvf_get_physical_address_range) {
+ pa_range = mc->hvf_get_physical_address_range(ms);
+ if (pa_range < 0) {
+ return -EINVAL;
+ }
+ }
+
+ ret = hvf_arch_vm_create(ms, (uint32_t)pa_range);
+ if (ret == HV_DENIED) {
+ error_report("Could not access HVF. Is the executable signed"
+ " with com.apple.security.hypervisor entitlement?");
+ exit(1);
+ }
+ assert_hvf_ok(ret);
+
+ s->num_slots = ARRAY_SIZE(s->slots);
+ for (x = 0; x < s->num_slots; ++x) {
+ s->slots[x].size = 0;
+ s->slots[x].slot_id = x;
+ }
+
+ QTAILQ_INIT(&s->hvf_sw_breakpoints);
+
+ hvf_state = s;
+ memory_listener_register(&hvf_memory_listener, &address_space_memory);
+
+ return hvf_arch_init();
+}
+
+static int hvf_gdbstub_sstep_flags(AccelState *as)
+{
+ return SSTEP_ENABLE | SSTEP_NOIRQ;
+}
+
+static void hvf_accel_class_init(ObjectClass *oc, const void *data)
+{
+ AccelClass *ac = ACCEL_CLASS(oc);
+ ac->name = "HVF";
+ ac->init_machine = hvf_accel_init;
+ ac->allowed = &hvf_allowed;
+ ac->gdbstub_supported_sstep_flags = hvf_gdbstub_sstep_flags;
+}
+
+static const TypeInfo hvf_accel_type = {
+ .name = TYPE_HVF_ACCEL,
+ .parent = TYPE_ACCEL,
+ .instance_size = sizeof(HVFState),
+ .class_init = hvf_accel_class_init,
+};
+
+static void hvf_type_init(void)
+{
+ type_register_static(&hvf_accel_type);
+}
+
+type_init(hvf_type_init);
diff --git a/accel/hvf/trace-events b/accel/hvf/trace-events
new file mode 100644
index 0000000..2fd3e12
--- /dev/null
+++ b/accel/hvf/trace-events
@@ -0,0 +1,7 @@
+# SPDX-License-Identifier: GPL-2.0-or-later
+#
+# See docs/devel/tracing.rst for syntax documentation.
+
+# hvf-accel-ops.c
+hvf_vm_map(uint64_t paddr, uint64_t size, void *vaddr, uint8_t flags, const char r, const char w, const char e) "paddr:0x%016"PRIx64" size:0x%08"PRIx64" vaddr:%p flags:0x%02x/%c%c%c"
+hvf_vm_unmap(uint64_t paddr, uint64_t size) "paddr:0x%016"PRIx64" size:0x%08"PRIx64
diff --git a/accel/hvf/trace.h b/accel/hvf/trace.h
new file mode 100644
index 0000000..83a1883
--- /dev/null
+++ b/accel/hvf/trace.h
@@ -0,0 +1,2 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+#include "trace/trace-accel_hvf.h"
diff --git a/accel/kvm/kvm-accel-ops.c b/accel/kvm/kvm-accel-ops.c
index e5c1544..b709187 100644
--- a/accel/kvm/kvm-accel-ops.c
+++ b/accel/kvm/kvm-accel-ops.c
@@ -16,7 +16,7 @@
#include "qemu/osdep.h"
#include "qemu/error-report.h"
#include "qemu/main-loop.h"
-#include "system/accel-ops.h"
+#include "accel/accel-cpu-ops.h"
#include "system/kvm.h"
#include "system/kvm_int.h"
#include "system/runstate.h"
@@ -101,6 +101,7 @@ static void kvm_accel_ops_class_init(ObjectClass *oc, const void *data)
ops->synchronize_post_init = kvm_cpu_synchronize_post_init;
ops->synchronize_state = kvm_cpu_synchronize_state;
ops->synchronize_pre_loadvm = kvm_cpu_synchronize_pre_loadvm;
+ ops->handle_interrupt = generic_handle_interrupt;
#ifdef TARGET_KVM_HAVE_GUEST_DEBUG
ops->update_guest_debug = kvm_update_guest_debug_ops;
diff --git a/accel/kvm/kvm-all.c b/accel/kvm/kvm-all.c
index d095d1b..890d5ea 100644
--- a/accel/kvm/kvm-all.c
+++ b/accel/kvm/kvm-all.c
@@ -32,6 +32,7 @@
#include "system/runstate.h"
#include "system/cpus.h"
#include "system/accel-blocker.h"
+#include "accel/accel-ops.h"
#include "qemu/bswap.h"
#include "exec/tswap.h"
#include "system/memory.h"
@@ -453,7 +454,13 @@ static void kvm_reset_parked_vcpus(KVMState *s)
}
}
-int kvm_create_vcpu(CPUState *cpu)
+/**
+ * kvm_create_vcpu - Gets a parked KVM vCPU or creates a KVM vCPU
+ * @cpu: QOM CPUState object for which KVM vCPU has to be fetched/created.
+ *
+ * @returns: 0 when success, errno (<0) when failed.
+ */
+static int kvm_create_vcpu(CPUState *cpu)
{
unsigned long vcpu_id = kvm_arch_vcpu_id(cpu);
KVMState *s = kvm_state;
@@ -515,16 +522,23 @@ static int do_kvm_destroy_vcpu(CPUState *cpu)
goto err;
}
+ /* If I am the CPU that created coalesced_mmio_ring, then discard it */
+ if (s->coalesced_mmio_ring == (void *)cpu->kvm_run + PAGE_SIZE) {
+ s->coalesced_mmio_ring = NULL;
+ }
+
ret = munmap(cpu->kvm_run, mmap_size);
if (ret < 0) {
goto err;
}
+ cpu->kvm_run = NULL;
if (cpu->kvm_dirty_gfns) {
ret = munmap(cpu->kvm_dirty_gfns, s->kvm_dirty_ring_bytes);
if (ret < 0) {
goto err;
}
+ cpu->kvm_dirty_gfns = NULL;
}
kvm_park_vcpu(cpu);
@@ -608,6 +622,31 @@ err:
return ret;
}
+void kvm_close(void)
+{
+ CPUState *cpu;
+
+ if (!kvm_state || kvm_state->fd == -1) {
+ return;
+ }
+
+ CPU_FOREACH(cpu) {
+ cpu_remove_sync(cpu);
+ close(cpu->kvm_fd);
+ cpu->kvm_fd = -1;
+ close(cpu->kvm_vcpu_stats_fd);
+ cpu->kvm_vcpu_stats_fd = -1;
+ }
+
+ if (kvm_state && kvm_state->fd != -1) {
+ close(kvm_state->vmfd);
+ kvm_state->vmfd = -1;
+ close(kvm_state->fd);
+ kvm_state->fd = -1;
+ }
+ kvm_state = NULL;
+}
+
/*
* dirty pages logging control
*/
@@ -2464,13 +2503,10 @@ uint32_t kvm_dirty_ring_size(void)
return kvm_state->kvm_dirty_ring_size;
}
-static int do_kvm_create_vm(MachineState *ms, int type)
+static int do_kvm_create_vm(KVMState *s, int type)
{
- KVMState *s;
int ret;
- s = KVM_STATE(ms->accelerator);
-
do {
ret = kvm_ioctl(s, KVM_CREATE_VM, type);
} while (ret == -EINTR);
@@ -2567,12 +2603,11 @@ static int kvm_setup_dirty_ring(KVMState *s)
return 0;
}
-static int kvm_init(MachineState *ms)
+static int kvm_init(AccelState *as, MachineState *ms)
{
MachineClass *mc = MACHINE_GET_CLASS(ms);
static const char upgrade_note[] =
- "Please upgrade to at least kernel 2.6.29 or recent kvm-kmod\n"
- "(see http://sourceforge.net/projects/kvm).\n";
+ "Please upgrade to at least kernel 4.5.\n";
const struct {
const char *name;
int num;
@@ -2582,15 +2617,13 @@ static int kvm_init(MachineState *ms)
{ /* end of list */ }
}, *nc = num_cpus;
int soft_vcpus_limit, hard_vcpus_limit;
- KVMState *s;
+ KVMState *s = KVM_STATE(as);
const KVMCapabilityInfo *missing_cap;
int ret;
int type;
qemu_mutex_init(&kml_slots_lock);
- s = KVM_STATE(ms->accelerator);
-
/*
* On systems where the kernel can support different base page
* sizes, host page size may be different from TARGET_PAGE_SIZE,
@@ -2642,7 +2675,7 @@ static int kvm_init(MachineState *ms)
goto err;
}
- ret = do_kvm_create_vm(ms, type);
+ ret = do_kvm_create_vm(s, type);
if (ret < 0) {
goto err;
}
@@ -3785,10 +3818,10 @@ int kvm_get_one_reg(CPUState *cs, uint64_t id, void *target)
return r;
}
-static bool kvm_accel_has_memory(MachineState *ms, AddressSpace *as,
+static bool kvm_accel_has_memory(AccelState *accel, AddressSpace *as,
hwaddr start_addr, hwaddr size)
{
- KVMState *kvm = KVM_STATE(ms->accelerator);
+ KVMState *kvm = KVM_STATE(accel);
int i;
for (i = 0; i < kvm->nr_as; ++i) {
@@ -3979,7 +4012,7 @@ static void kvm_accel_instance_init(Object *obj)
* Returns: SSTEP_* flags that KVM supports for guest debug. The
* support is probed during kvm_init()
*/
-static int kvm_gdbstub_sstep_flags(void)
+static int kvm_gdbstub_sstep_flags(AccelState *as)
{
return kvm_sstep_flags;
}
diff --git a/accel/meson.build b/accel/meson.build
index 5290931..25b0f10 100644
--- a/accel/meson.build
+++ b/accel/meson.build
@@ -1,6 +1,6 @@
common_ss.add(files('accel-common.c'))
specific_ss.add(files('accel-target.c'))
-system_ss.add(files('accel-system.c', 'accel-blocker.c'))
+system_ss.add(files('accel-system.c', 'accel-blocker.c', 'accel-qmp.c'))
user_ss.add(files('accel-user.c'))
subdir('tcg')
diff --git a/accel/qtest/qtest.c b/accel/qtest/qtest.c
index 92bed92..1d4337d 100644
--- a/accel/qtest/qtest.c
+++ b/accel/qtest/qtest.c
@@ -18,12 +18,14 @@
#include "qemu/option.h"
#include "qemu/config-file.h"
#include "qemu/accel.h"
-#include "system/accel-ops.h"
+#include "accel/accel-ops.h"
+#include "accel/accel-cpu-ops.h"
#include "system/qtest.h"
#include "system/cpus.h"
#include "qemu/guest-random.h"
#include "qemu/main-loop.h"
#include "hw/core/cpu.h"
+#include "accel/dummy-cpus.h"
static int64_t qtest_clock_counter;
@@ -37,7 +39,7 @@ static void qtest_set_virtual_clock(int64_t count)
qatomic_set_i64(&qtest_clock_counter, count);
}
-static int qtest_init_accel(MachineState *ms)
+static int qtest_init_accel(AccelState *as, MachineState *ms)
{
return 0;
}
@@ -66,6 +68,7 @@ static void qtest_accel_ops_class_init(ObjectClass *oc, const void *data)
ops->create_vcpu_thread = dummy_start_vcpu_thread;
ops->get_virtual_clock = qtest_get_virtual_clock;
ops->set_virtual_clock = qtest_set_virtual_clock;
+ ops->handle_interrupt = generic_handle_interrupt;
};
static const TypeInfo qtest_accel_ops_type = {
diff --git a/accel/stubs/kvm-stub.c b/accel/stubs/kvm-stub.c
index ecfd763..68cd33b 100644
--- a/accel/stubs/kvm-stub.c
+++ b/accel/stubs/kvm-stub.c
@@ -29,10 +29,6 @@ void kvm_flush_coalesced_mmio_buffer(void)
{
}
-void kvm_cpu_synchronize_state(CPUState *cpu)
-{
-}
-
bool kvm_has_sync_mmu(void)
{
return false;
@@ -105,11 +101,6 @@ unsigned int kvm_get_free_memslots(void)
return 0;
}
-void kvm_init_cpu_signals(CPUState *cpu)
-{
- abort();
-}
-
bool kvm_arm_supports_user_irq(void)
{
return false;
diff --git a/accel/stubs/meson.build b/accel/stubs/meson.build
index 8ca1a45..9dfc4f9 100644
--- a/accel/stubs/meson.build
+++ b/accel/stubs/meson.build
@@ -3,5 +3,7 @@ system_stubs_ss.add(when: 'CONFIG_XEN', if_false: files('xen-stub.c'))
system_stubs_ss.add(when: 'CONFIG_KVM', if_false: files('kvm-stub.c'))
system_stubs_ss.add(when: 'CONFIG_TCG', if_false: files('tcg-stub.c'))
system_stubs_ss.add(when: 'CONFIG_HVF', if_false: files('hvf-stub.c'))
+system_stubs_ss.add(when: 'CONFIG_NVMM', if_false: files('nvmm-stub.c'))
+system_stubs_ss.add(when: 'CONFIG_WHPX', if_false: files('whpx-stub.c'))
specific_ss.add_all(when: ['CONFIG_SYSTEM_ONLY'], if_true: system_stubs_ss)
diff --git a/accel/stubs/nvmm-stub.c b/accel/stubs/nvmm-stub.c
new file mode 100644
index 0000000..ec14837
--- /dev/null
+++ b/accel/stubs/nvmm-stub.c
@@ -0,0 +1,12 @@
+/*
+ * NVMM stubs for QEMU
+ *
+ * Copyright (c) Linaro
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
+
+#include "qemu/osdep.h"
+#include "system/nvmm.h"
+
+bool nvmm_allowed;
diff --git a/accel/stubs/whpx-stub.c b/accel/stubs/whpx-stub.c
new file mode 100644
index 0000000..c564c89
--- /dev/null
+++ b/accel/stubs/whpx-stub.c
@@ -0,0 +1,12 @@
+/*
+ * WHPX stubs for QEMU
+ *
+ * Copyright (c) Linaro
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
+
+#include "qemu/osdep.h"
+#include "system/whpx.h"
+
+bool whpx_allowed;
diff --git a/accel/tcg/internal-common.h b/accel/tcg/internal-common.h
index 1dbc45d..6adfeef 100644
--- a/accel/tcg/internal-common.h
+++ b/accel/tcg/internal-common.h
@@ -139,4 +139,6 @@ G_NORETURN void cpu_io_recompile(CPUState *cpu, uintptr_t retaddr);
void tb_phys_invalidate(TranslationBlock *tb, tb_page_addr_t page_addr);
void tb_set_jmp_target(TranslationBlock *tb, int n, uintptr_t addr);
+void tcg_get_stats(AccelState *accel, GString *buf);
+
#endif
diff --git a/accel/tcg/meson.build b/accel/tcg/meson.build
index 575e92b..002aa8f 100644
--- a/accel/tcg/meson.build
+++ b/accel/tcg/meson.build
@@ -11,6 +11,7 @@ tcg_ss.add(files(
'tcg-runtime-gvec.c',
'tb-maint.c',
'tcg-all.c',
+ 'tcg-stats.c',
'translate-all.c',
'translator.c',
))
diff --git a/accel/tcg/monitor.c b/accel/tcg/monitor.c
index 1c182b6..be5c195 100644
--- a/accel/tcg/monitor.c
+++ b/accel/tcg/monitor.c
@@ -7,197 +7,13 @@
*/
#include "qemu/osdep.h"
-#include "qemu/accel.h"
-#include "qemu/qht.h"
#include "qapi/error.h"
#include "qapi/type-helpers.h"
#include "qapi/qapi-commands-machine.h"
#include "monitor/monitor.h"
-#include "system/cpu-timers.h"
-#include "exec/icount.h"
#include "system/tcg.h"
#include "tcg/tcg.h"
#include "internal-common.h"
-#include "tb-context.h"
-
-
-static void dump_drift_info(GString *buf)
-{
- if (!icount_enabled()) {
- return;
- }
-
- g_string_append_printf(buf, "Host - Guest clock %"PRIi64" ms\n",
- (cpu_get_clock() - icount_get()) / SCALE_MS);
- if (icount_align_option) {
- g_string_append_printf(buf, "Max guest delay %"PRIi64" ms\n",
- -max_delay / SCALE_MS);
- g_string_append_printf(buf, "Max guest advance %"PRIi64" ms\n",
- max_advance / SCALE_MS);
- } else {
- g_string_append_printf(buf, "Max guest delay NA\n");
- g_string_append_printf(buf, "Max guest advance NA\n");
- }
-}
-
-static void dump_accel_info(GString *buf)
-{
- AccelState *accel = current_accel();
- bool one_insn_per_tb = object_property_get_bool(OBJECT(accel),
- "one-insn-per-tb",
- &error_fatal);
-
- g_string_append_printf(buf, "Accelerator settings:\n");
- g_string_append_printf(buf, "one-insn-per-tb: %s\n\n",
- one_insn_per_tb ? "on" : "off");
-}
-
-static void print_qht_statistics(struct qht_stats hst, GString *buf)
-{
- uint32_t hgram_opts;
- size_t hgram_bins;
- char *hgram;
-
- if (!hst.head_buckets) {
- return;
- }
- g_string_append_printf(buf, "TB hash buckets %zu/%zu "
- "(%0.2f%% head buckets used)\n",
- hst.used_head_buckets, hst.head_buckets,
- (double)hst.used_head_buckets /
- hst.head_buckets * 100);
-
- hgram_opts = QDIST_PR_BORDER | QDIST_PR_LABELS;
- hgram_opts |= QDIST_PR_100X | QDIST_PR_PERCENT;
- if (qdist_xmax(&hst.occupancy) - qdist_xmin(&hst.occupancy) == 1) {
- hgram_opts |= QDIST_PR_NODECIMAL;
- }
- hgram = qdist_pr(&hst.occupancy, 10, hgram_opts);
- g_string_append_printf(buf, "TB hash occupancy %0.2f%% avg chain occ. "
- "Histogram: %s\n",
- qdist_avg(&hst.occupancy) * 100, hgram);
- g_free(hgram);
-
- hgram_opts = QDIST_PR_BORDER | QDIST_PR_LABELS;
- hgram_bins = qdist_xmax(&hst.chain) - qdist_xmin(&hst.chain);
- if (hgram_bins > 10) {
- hgram_bins = 10;
- } else {
- hgram_bins = 0;
- hgram_opts |= QDIST_PR_NODECIMAL | QDIST_PR_NOBINRANGE;
- }
- hgram = qdist_pr(&hst.chain, hgram_bins, hgram_opts);
- g_string_append_printf(buf, "TB hash avg chain %0.3f buckets. "
- "Histogram: %s\n",
- qdist_avg(&hst.chain), hgram);
- g_free(hgram);
-}
-
-struct tb_tree_stats {
- size_t nb_tbs;
- size_t host_size;
- size_t target_size;
- size_t max_target_size;
- size_t direct_jmp_count;
- size_t direct_jmp2_count;
- size_t cross_page;
-};
-
-static gboolean tb_tree_stats_iter(gpointer key, gpointer value, gpointer data)
-{
- const TranslationBlock *tb = value;
- struct tb_tree_stats *tst = data;
-
- tst->nb_tbs++;
- tst->host_size += tb->tc.size;
- tst->target_size += tb->size;
- if (tb->size > tst->max_target_size) {
- tst->max_target_size = tb->size;
- }
- if (tb->page_addr[1] != -1) {
- tst->cross_page++;
- }
- if (tb->jmp_reset_offset[0] != TB_JMP_OFFSET_INVALID) {
- tst->direct_jmp_count++;
- if (tb->jmp_reset_offset[1] != TB_JMP_OFFSET_INVALID) {
- tst->direct_jmp2_count++;
- }
- }
- return false;
-}
-
-static void tlb_flush_counts(size_t *pfull, size_t *ppart, size_t *pelide)
-{
- CPUState *cpu;
- size_t full = 0, part = 0, elide = 0;
-
- CPU_FOREACH(cpu) {
- full += qatomic_read(&cpu->neg.tlb.c.full_flush_count);
- part += qatomic_read(&cpu->neg.tlb.c.part_flush_count);
- elide += qatomic_read(&cpu->neg.tlb.c.elide_flush_count);
- }
- *pfull = full;
- *ppart = part;
- *pelide = elide;
-}
-
-static void tcg_dump_info(GString *buf)
-{
- g_string_append_printf(buf, "[TCG profiler not compiled]\n");
-}
-
-static void dump_exec_info(GString *buf)
-{
- struct tb_tree_stats tst = {};
- struct qht_stats hst;
- size_t nb_tbs, flush_full, flush_part, flush_elide;
-
- tcg_tb_foreach(tb_tree_stats_iter, &tst);
- nb_tbs = tst.nb_tbs;
- /* XXX: avoid using doubles ? */
- g_string_append_printf(buf, "Translation buffer state:\n");
- /*
- * Report total code size including the padding and TB structs;
- * otherwise users might think "-accel tcg,tb-size" is not honoured.
- * For avg host size we use the precise numbers from tb_tree_stats though.
- */
- g_string_append_printf(buf, "gen code size %zu/%zu\n",
- tcg_code_size(), tcg_code_capacity());
- g_string_append_printf(buf, "TB count %zu\n", nb_tbs);
- g_string_append_printf(buf, "TB avg target size %zu max=%zu bytes\n",
- nb_tbs ? tst.target_size / nb_tbs : 0,
- tst.max_target_size);
- g_string_append_printf(buf, "TB avg host size %zu bytes "
- "(expansion ratio: %0.1f)\n",
- nb_tbs ? tst.host_size / nb_tbs : 0,
- tst.target_size ?
- (double)tst.host_size / tst.target_size : 0);
- g_string_append_printf(buf, "cross page TB count %zu (%zu%%)\n",
- tst.cross_page,
- nb_tbs ? (tst.cross_page * 100) / nb_tbs : 0);
- g_string_append_printf(buf, "direct jump count %zu (%zu%%) "
- "(2 jumps=%zu %zu%%)\n",
- tst.direct_jmp_count,
- nb_tbs ? (tst.direct_jmp_count * 100) / nb_tbs : 0,
- tst.direct_jmp2_count,
- nb_tbs ? (tst.direct_jmp2_count * 100) / nb_tbs : 0);
-
- qht_statistics_init(&tb_ctx.htable, &hst);
- print_qht_statistics(hst, buf);
- qht_statistics_destroy(&hst);
-
- g_string_append_printf(buf, "\nStatistics:\n");
- g_string_append_printf(buf, "TB flush count %u\n",
- qatomic_read(&tb_ctx.tb_flush_count));
- g_string_append_printf(buf, "TB invalidate count %u\n",
- qatomic_read(&tb_ctx.tb_phys_invalidate_count));
-
- tlb_flush_counts(&flush_full, &flush_part, &flush_elide);
- g_string_append_printf(buf, "TLB full flushes %zu\n", flush_full);
- g_string_append_printf(buf, "TLB partial flushes %zu\n", flush_part);
- g_string_append_printf(buf, "TLB elided flushes %zu\n", flush_elide);
- tcg_dump_info(buf);
-}
HumanReadableText *qmp_x_query_jit(Error **errp)
{
@@ -208,29 +24,7 @@ HumanReadableText *qmp_x_query_jit(Error **errp)
return NULL;
}
- dump_accel_info(buf);
- dump_exec_info(buf);
- dump_drift_info(buf);
-
- return human_readable_text_from_str(buf);
-}
-
-static void tcg_dump_op_count(GString *buf)
-{
- g_string_append_printf(buf, "[TCG profiler not compiled]\n");
-}
-
-HumanReadableText *qmp_x_query_opcount(Error **errp)
-{
- g_autoptr(GString) buf = g_string_new("");
-
- if (!tcg_enabled()) {
- error_setg(errp,
- "Opcode count information is only available with accel=tcg");
- return NULL;
- }
-
- tcg_dump_op_count(buf);
+ tcg_dump_stats(buf);
return human_readable_text_from_str(buf);
}
@@ -238,7 +32,6 @@ HumanReadableText *qmp_x_query_opcount(Error **errp)
static void hmp_tcg_register(void)
{
monitor_register_hmp_info_hrt("jit", qmp_x_query_jit);
- monitor_register_hmp_info_hrt("opcount", qmp_x_query_opcount);
}
type_init(hmp_tcg_register);
diff --git a/accel/tcg/plugin-gen.c b/accel/tcg/plugin-gen.c
index c1da753..9920381 100644
--- a/accel/tcg/plugin-gen.c
+++ b/accel/tcg/plugin-gen.c
@@ -117,10 +117,20 @@ static TCGv_i32 gen_cpu_index(void)
static void gen_udata_cb(struct qemu_plugin_regular_cb *cb)
{
TCGv_i32 cpu_index = gen_cpu_index();
+ enum qemu_plugin_cb_flags cb_flags =
+ tcg_call_to_qemu_plugin_cb_flags(cb->info->flags);
+ TCGv_i32 flags = tcg_constant_i32(cb_flags);
+ TCGv_i32 clear_flags = tcg_constant_i32(QEMU_PLUGIN_CB_NO_REGS);
+ tcg_gen_st_i32(flags, tcg_env,
+ offsetof(CPUState, neg.plugin_cb_flags) - sizeof(CPUState));
tcg_gen_call2(cb->f.vcpu_udata, cb->info, NULL,
tcgv_i32_temp(cpu_index),
tcgv_ptr_temp(tcg_constant_ptr(cb->userp)));
+ tcg_gen_st_i32(clear_flags, tcg_env,
+ offsetof(CPUState, neg.plugin_cb_flags) - sizeof(CPUState));
tcg_temp_free_i32(cpu_index);
+ tcg_temp_free_i32(flags);
+ tcg_temp_free_i32(clear_flags);
}
static TCGv_ptr gen_plugin_u64_ptr(qemu_plugin_u64 entry)
@@ -173,10 +183,20 @@ static void gen_udata_cond_cb(struct qemu_plugin_conditional_cb *cb)
tcg_gen_ld_i64(val, ptr, 0);
tcg_gen_brcondi_i64(cond, val, cb->imm, after_cb);
TCGv_i32 cpu_index = gen_cpu_index();
+ enum qemu_plugin_cb_flags cb_flags =
+ tcg_call_to_qemu_plugin_cb_flags(cb->info->flags);
+ TCGv_i32 flags = tcg_constant_i32(cb_flags);
+ TCGv_i32 clear_flags = tcg_constant_i32(QEMU_PLUGIN_CB_NO_REGS);
+ tcg_gen_st_i32(flags, tcg_env,
+ offsetof(CPUState, neg.plugin_cb_flags) - sizeof(CPUState));
tcg_gen_call2(cb->f.vcpu_udata, cb->info, NULL,
tcgv_i32_temp(cpu_index),
tcgv_ptr_temp(tcg_constant_ptr(cb->userp)));
+ tcg_gen_st_i32(clear_flags, tcg_env,
+ offsetof(CPUState, neg.plugin_cb_flags) - sizeof(CPUState));
tcg_temp_free_i32(cpu_index);
+ tcg_temp_free_i32(flags);
+ tcg_temp_free_i32(clear_flags);
gen_set_label(after_cb);
tcg_temp_free_i64(val);
@@ -210,12 +230,22 @@ static void gen_mem_cb(struct qemu_plugin_regular_cb *cb,
qemu_plugin_meminfo_t meminfo, TCGv_i64 addr)
{
TCGv_i32 cpu_index = gen_cpu_index();
+ enum qemu_plugin_cb_flags cb_flags =
+ tcg_call_to_qemu_plugin_cb_flags(cb->info->flags);
+ TCGv_i32 flags = tcg_constant_i32(cb_flags);
+ TCGv_i32 clear_flags = tcg_constant_i32(QEMU_PLUGIN_CB_NO_REGS);
+ tcg_gen_st_i32(flags, tcg_env,
+ offsetof(CPUState, neg.plugin_cb_flags) - sizeof(CPUState));
tcg_gen_call4(cb->f.vcpu_mem, cb->info, NULL,
tcgv_i32_temp(cpu_index),
tcgv_i32_temp(tcg_constant_i32(meminfo)),
tcgv_i64_temp(addr),
tcgv_ptr_temp(tcg_constant_ptr(cb->userp)));
+ tcg_gen_st_i32(clear_flags, tcg_env,
+ offsetof(CPUState, neg.plugin_cb_flags) - sizeof(CPUState));
tcg_temp_free_i32(cpu_index);
+ tcg_temp_free_i32(flags);
+ tcg_temp_free_i32(clear_flags);
}
static void inject_cb(struct qemu_plugin_dyn_cb *cb)
diff --git a/accel/tcg/tcg-accel-ops-mttcg.c b/accel/tcg/tcg-accel-ops-mttcg.c
index dfcee30..337b993 100644
--- a/accel/tcg/tcg-accel-ops-mttcg.c
+++ b/accel/tcg/tcg-accel-ops-mttcg.c
@@ -113,7 +113,6 @@ static void *mttcg_cpu_thread_fn(void *arg)
}
}
- qatomic_set_mb(&cpu->exit_request, 0);
qemu_wait_io_event(cpu);
} while (!cpu->unplug || cpu_can_run(cpu));
diff --git a/accel/tcg/tcg-accel-ops.c b/accel/tcg/tcg-accel-ops.c
index b24d6a7..3b0d7d2 100644
--- a/accel/tcg/tcg-accel-ops.c
+++ b/accel/tcg/tcg-accel-ops.c
@@ -26,7 +26,8 @@
*/
#include "qemu/osdep.h"
-#include "system/accel-ops.h"
+#include "accel/accel-ops.h"
+#include "accel/accel-cpu-ops.h"
#include "system/tcg.h"
#include "system/replay.h"
#include "exec/icount.h"
@@ -80,6 +81,9 @@ int tcg_cpu_exec(CPUState *cpu)
cpu_exec_start(cpu);
ret = cpu_exec(cpu);
cpu_exec_end(cpu);
+
+ qatomic_set_mb(&cpu->exit_request, 0);
+
return ret;
}
@@ -93,8 +97,6 @@ static void tcg_cpu_reset_hold(CPUState *cpu)
/* mask must never be zero, except for A20 change call */
void tcg_handle_interrupt(CPUState *cpu, int mask)
{
- g_assert(bql_locked());
-
cpu->interrupt_request |= mask;
/*
@@ -198,8 +200,10 @@ static inline void tcg_remove_all_breakpoints(CPUState *cpu)
cpu_watchpoint_remove_all(cpu, BP_GDB);
}
-static void tcg_accel_ops_init(AccelOpsClass *ops)
+static void tcg_accel_ops_init(AccelClass *ac)
{
+ AccelOpsClass *ops = ac->ops;
+
if (qemu_tcg_mttcg_enabled()) {
ops->create_vcpu_thread = mttcg_start_vcpu_thread;
ops->kick_vcpu_thread = mttcg_kick_vcpu_thread;
diff --git a/accel/tcg/tcg-all.c b/accel/tcg/tcg-all.c
index 6e5dc33..5125e1a 100644
--- a/accel/tcg/tcg-all.c
+++ b/accel/tcg/tcg-all.c
@@ -39,6 +39,8 @@
#ifndef CONFIG_USER_ONLY
#include "hw/boards.h"
#endif
+#include "accel/accel-ops.h"
+#include "accel/accel-cpu-ops.h"
#include "accel/tcg/cpu-ops.h"
#include "internal-common.h"
@@ -80,9 +82,9 @@ static void tcg_accel_instance_init(Object *obj)
bool one_insn_per_tb;
-static int tcg_init_machine(MachineState *ms)
+static int tcg_init_machine(AccelState *as, MachineState *ms)
{
- TCGState *s = TCG_STATE(current_accel());
+ TCGState *s = TCG_STATE(as);
unsigned max_threads = 1;
#ifndef CONFIG_USER_ONLY
@@ -219,7 +221,7 @@ static void tcg_set_one_insn_per_tb(Object *obj, bool value, Error **errp)
qatomic_set(&one_insn_per_tb, value);
}
-static int tcg_gdbstub_supported_sstep_flags(void)
+static int tcg_gdbstub_supported_sstep_flags(AccelState *as)
{
/*
* In replay mode all events will come from the log and can't be
@@ -241,6 +243,7 @@ static void tcg_accel_class_init(ObjectClass *oc, const void *data)
ac->init_machine = tcg_init_machine;
ac->cpu_common_realize = tcg_exec_realizefn;
ac->cpu_common_unrealize = tcg_exec_unrealizefn;
+ ac->get_stats = tcg_get_stats;
ac->allowed = &tcg_allowed;
ac->gdbstub_supported_sstep_flags = tcg_gdbstub_supported_sstep_flags;
diff --git a/accel/tcg/tcg-stats.c b/accel/tcg/tcg-stats.c
new file mode 100644
index 0000000..ced5dec
--- /dev/null
+++ b/accel/tcg/tcg-stats.c
@@ -0,0 +1,219 @@
+/*
+ * SPDX-License-Identifier: LGPL-2.1-or-later
+ *
+ * QEMU TCG statistics
+ *
+ * Copyright (c) 2003-2005 Fabrice Bellard
+ */
+
+#include "qemu/osdep.h"
+#include "qemu/accel.h"
+#include "qemu/qht.h"
+#include "qapi/error.h"
+#include "system/cpu-timers.h"
+#include "exec/icount.h"
+#include "hw/core/cpu.h"
+#include "tcg/tcg.h"
+#include "internal-common.h"
+#include "tb-context.h"
+#include <math.h>
+
+static void dump_drift_info(GString *buf)
+{
+ if (!icount_enabled()) {
+ return;
+ }
+
+ g_string_append_printf(buf, "Host - Guest clock %"PRIi64" ms\n",
+ (cpu_get_clock() - icount_get()) / SCALE_MS);
+ if (icount_align_option) {
+ g_string_append_printf(buf, "Max guest delay %"PRIi64" ms\n",
+ -max_delay / SCALE_MS);
+ g_string_append_printf(buf, "Max guest advance %"PRIi64" ms\n",
+ max_advance / SCALE_MS);
+ } else {
+ g_string_append_printf(buf, "Max guest delay NA\n");
+ g_string_append_printf(buf, "Max guest advance NA\n");
+ }
+}
+
+static void dump_accel_info(AccelState *accel, GString *buf)
+{
+ bool one_insn_per_tb = object_property_get_bool(OBJECT(accel),
+ "one-insn-per-tb",
+ &error_fatal);
+
+ g_string_append_printf(buf, "Accelerator settings:\n");
+ g_string_append_printf(buf, "one-insn-per-tb: %s\n\n",
+ one_insn_per_tb ? "on" : "off");
+}
+
+static void print_qht_statistics(struct qht_stats hst, GString *buf)
+{
+ uint32_t hgram_opts;
+ size_t hgram_bins;
+ char *hgram;
+ double avg;
+
+ if (!hst.head_buckets) {
+ return;
+ }
+ g_string_append_printf(buf, "TB hash buckets %zu/%zu "
+ "(%0.2f%% head buckets used)\n",
+ hst.used_head_buckets, hst.head_buckets,
+ (double)hst.used_head_buckets /
+ hst.head_buckets * 100);
+
+ hgram_opts = QDIST_PR_BORDER | QDIST_PR_LABELS;
+ hgram_opts |= QDIST_PR_100X | QDIST_PR_PERCENT;
+ if (qdist_xmax(&hst.occupancy) - qdist_xmin(&hst.occupancy) == 1) {
+ hgram_opts |= QDIST_PR_NODECIMAL;
+ }
+ hgram = qdist_pr(&hst.occupancy, 10, hgram_opts);
+ avg = qdist_avg(&hst.occupancy);
+ if (!isnan(avg)) {
+ g_string_append_printf(buf, "TB hash occupancy "
+ "%0.2f%% avg chain occ. "
+ "Histogram: %s\n",
+ avg * 100, hgram);
+ }
+ g_free(hgram);
+
+ hgram_opts = QDIST_PR_BORDER | QDIST_PR_LABELS;
+ hgram_bins = qdist_xmax(&hst.chain) - qdist_xmin(&hst.chain);
+ if (hgram_bins > 10) {
+ hgram_bins = 10;
+ } else {
+ hgram_bins = 0;
+ hgram_opts |= QDIST_PR_NODECIMAL | QDIST_PR_NOBINRANGE;
+ }
+ hgram = qdist_pr(&hst.chain, hgram_bins, hgram_opts);
+ avg = qdist_avg(&hst.chain);
+ if (!isnan(avg)) {
+ g_string_append_printf(buf, "TB hash avg chain %0.3f buckets. "
+ "Histogram: %s\n",
+ avg, hgram);
+ }
+ g_free(hgram);
+}
+
+struct tb_tree_stats {
+ size_t nb_tbs;
+ size_t host_size;
+ size_t target_size;
+ size_t max_target_size;
+ size_t direct_jmp_count;
+ size_t direct_jmp2_count;
+ size_t cross_page;
+};
+
+static gboolean tb_tree_stats_iter(gpointer key, gpointer value, gpointer data)
+{
+ const TranslationBlock *tb = value;
+ struct tb_tree_stats *tst = data;
+
+ tst->nb_tbs++;
+ tst->host_size += tb->tc.size;
+ tst->target_size += tb->size;
+ if (tb->size > tst->max_target_size) {
+ tst->max_target_size = tb->size;
+ }
+#ifndef CONFIG_USER_ONLY
+ if (tb->page_addr[1] != -1) {
+ tst->cross_page++;
+ }
+#endif
+ if (tb->jmp_reset_offset[0] != TB_JMP_OFFSET_INVALID) {
+ tst->direct_jmp_count++;
+ if (tb->jmp_reset_offset[1] != TB_JMP_OFFSET_INVALID) {
+ tst->direct_jmp2_count++;
+ }
+ }
+ return false;
+}
+
+static void tlb_flush_counts(size_t *pfull, size_t *ppart, size_t *pelide)
+{
+ CPUState *cpu;
+ size_t full = 0, part = 0, elide = 0;
+
+ CPU_FOREACH(cpu) {
+ full += qatomic_read(&cpu->neg.tlb.c.full_flush_count);
+ part += qatomic_read(&cpu->neg.tlb.c.part_flush_count);
+ elide += qatomic_read(&cpu->neg.tlb.c.elide_flush_count);
+ }
+ *pfull = full;
+ *ppart = part;
+ *pelide = elide;
+}
+
+static void tcg_dump_flush_info(GString *buf)
+{
+ size_t flush_full, flush_part, flush_elide;
+
+ g_string_append_printf(buf, "TB flush count %u\n",
+ qatomic_read(&tb_ctx.tb_flush_count));
+ g_string_append_printf(buf, "TB invalidate count %u\n",
+ qatomic_read(&tb_ctx.tb_phys_invalidate_count));
+
+ tlb_flush_counts(&flush_full, &flush_part, &flush_elide);
+ g_string_append_printf(buf, "TLB full flushes %zu\n", flush_full);
+ g_string_append_printf(buf, "TLB partial flushes %zu\n", flush_part);
+ g_string_append_printf(buf, "TLB elided flushes %zu\n", flush_elide);
+}
+
+static void dump_exec_info(GString *buf)
+{
+ struct tb_tree_stats tst = {};
+ struct qht_stats hst;
+ size_t nb_tbs;
+
+ tcg_tb_foreach(tb_tree_stats_iter, &tst);
+ nb_tbs = tst.nb_tbs;
+ /* XXX: avoid using doubles ? */
+ g_string_append_printf(buf, "Translation buffer state:\n");
+ /*
+ * Report total code size including the padding and TB structs;
+ * otherwise users might think "-accel tcg,tb-size" is not honoured.
+ * For avg host size we use the precise numbers from tb_tree_stats though.
+ */
+ g_string_append_printf(buf, "gen code size %zu/%zu\n",
+ tcg_code_size(), tcg_code_capacity());
+ g_string_append_printf(buf, "TB count %zu\n", nb_tbs);
+ g_string_append_printf(buf, "TB avg target size %zu max=%zu bytes\n",
+ nb_tbs ? tst.target_size / nb_tbs : 0,
+ tst.max_target_size);
+ g_string_append_printf(buf, "TB avg host size %zu bytes "
+ "(expansion ratio: %0.1f)\n",
+ nb_tbs ? tst.host_size / nb_tbs : 0,
+ tst.target_size ?
+ (double)tst.host_size / tst.target_size : 0);
+ g_string_append_printf(buf, "cross page TB count %zu (%zu%%)\n",
+ tst.cross_page,
+ nb_tbs ? (tst.cross_page * 100) / nb_tbs : 0);
+ g_string_append_printf(buf, "direct jump count %zu (%zu%%) "
+ "(2 jumps=%zu %zu%%)\n",
+ tst.direct_jmp_count,
+ nb_tbs ? (tst.direct_jmp_count * 100) / nb_tbs : 0,
+ tst.direct_jmp2_count,
+ nb_tbs ? (tst.direct_jmp2_count * 100) / nb_tbs : 0);
+
+ qht_statistics_init(&tb_ctx.htable, &hst);
+ print_qht_statistics(hst, buf);
+ qht_statistics_destroy(&hst);
+
+ g_string_append_printf(buf, "\nStatistics:\n");
+ tcg_dump_flush_info(buf);
+}
+
+void tcg_get_stats(AccelState *accel, GString *buf)
+{
+ dump_accel_info(accel, buf);
+ dump_exec_info(buf);
+ dump_drift_info(buf);
+}
+
+void tcg_dump_stats(GString *buf)
+{
+ tcg_get_stats(current_accel(), buf);
+}
diff --git a/accel/xen/xen-all.c b/accel/xen/xen-all.c
index de52a8f..97377d6 100644
--- a/accel/xen/xen-all.c
+++ b/accel/xen/xen-all.c
@@ -18,7 +18,9 @@
#include "hw/xen/xen_igd.h"
#include "chardev/char.h"
#include "qemu/accel.h"
-#include "system/accel-ops.h"
+#include "accel/dummy-cpus.h"
+#include "accel/accel-ops.h"
+#include "accel/accel-cpu-ops.h"
#include "system/cpus.h"
#include "system/xen.h"
#include "system/runstate.h"
@@ -63,7 +65,7 @@ static void xen_set_igd_gfx_passthru(Object *obj, bool value, Error **errp)
xen_igd_gfx_pt_set(value, errp);
}
-static void xen_setup_post(MachineState *ms, AccelState *accel)
+static void xen_setup_post(AccelState *as)
{
int rc;
@@ -76,7 +78,7 @@ static void xen_setup_post(MachineState *ms, AccelState *accel)
}
}
-static int xen_init(MachineState *ms)
+static int xen_init(AccelState *as, MachineState *ms)
{
MachineClass *mc = MACHINE_GET_CLASS(ms);
@@ -152,6 +154,7 @@ static void xen_accel_ops_class_init(ObjectClass *oc, const void *data)
AccelOpsClass *ops = ACCEL_OPS_CLASS(oc);
ops->create_vcpu_thread = dummy_start_vcpu_thread;
+ ops->handle_interrupt = generic_handle_interrupt;
}
static const TypeInfo xen_accel_ops_type = {
generated by cgit v1.1 at 2025-08-03 23:46:02 +0000