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general: Replace global smp variables with smp machine properties 

Basically, the context could get the MachineState reference via call
chains or unrecommended qdev_get_machine() in !CONFIG_USER_ONLY mode.

A local variable of the same name would be introduced in the declaration
phase out of less effort OR replace it on the spot if it's only used
once in the context. No semantic changes.

Signed-off-by: Like Xu <like.xu@linux.intel.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20190518205428.90532-4-like.xu@linux.intel.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
This commit is contained in:
Like Xu 2019-05-19 04:54:21 +08:00 committed by Eduardo Habkost
parent a0628599fa
commit 5cc8767d05
10 changed files with 45 additions and 11 deletions
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4
accel/kvm/kvm-all.c
View File

@ -1542,8 +1542,8 @@ static int kvm_init(MachineState *ms)
const char *name;
int num;
} num_cpus[] = {
{ "SMP", smp_cpus },
{ "hotpluggable", max_cpus },
{ "SMP", ms->smp.cpus },
{ "hotpluggable", ms->smp.max_cpus },
{ NULL, }
}, *nc = num_cpus;
int soft_vcpus_limit, hard_vcpus_limit;

6
backends/hostmem.c
View File

@ -222,6 +222,7 @@ static void host_memory_backend_set_prealloc(Object *obj, bool value,
{
Error *local_err = NULL;
HostMemoryBackend *backend = MEMORY_BACKEND(obj);
MachineState *ms = MACHINE(qdev_get_machine());
if (backend->force_prealloc) {
if (value) {
@ -241,7 +242,7 @@ static void host_memory_backend_set_prealloc(Object *obj, bool value,
void *ptr = memory_region_get_ram_ptr(&backend->mr);
uint64_t sz = memory_region_size(&backend->mr);
os_mem_prealloc(fd, ptr, sz, smp_cpus, &local_err);
os_mem_prealloc(fd, ptr, sz, ms->smp.cpus, &local_err);
if (local_err) {
error_propagate(errp, local_err);
return;
@ -311,6 +312,7 @@ host_memory_backend_memory_complete(UserCreatable *uc, Error **errp)
{
HostMemoryBackend *backend = MEMORY_BACKEND(uc);
HostMemoryBackendClass *bc = MEMORY_BACKEND_GET_CLASS(uc);
MachineState *ms = MACHINE(qdev_get_machine());
Error *local_err = NULL;
void *ptr;
uint64_t sz;
@ -375,7 +377,7 @@ host_memory_backend_memory_complete(UserCreatable *uc, Error **errp)
*/
if (backend->prealloc) {
os_mem_prealloc(memory_region_get_fd(&backend->mr), ptr, sz,
smp_cpus, &local_err);
ms->smp.cpus, &local_err);
if (local_err) {
goto out;
}

7
cpus.c
View File

@ -54,6 +54,7 @@
#include "tcg.h"
#include "hw/nmi.h"
#include "sysemu/replay.h"
#include "hw/boards.h"
#ifdef CONFIG_LINUX
@ -2075,8 +2076,10 @@ static void qemu_dummy_start_vcpu(CPUState *cpu)
void qemu_init_vcpu(CPUState *cpu)
{
cpu->nr_cores = smp_cores;
cpu->nr_threads = smp_threads;
MachineState *ms = MACHINE(qdev_get_machine());
cpu->nr_cores = ms->smp.cores;
cpu->nr_threads = ms->smp.threads;
cpu->stopped = true;
cpu->random_seed = qemu_guest_random_seed_thread_part1();

3
exec.c
View File

@ -1874,6 +1874,7 @@ static void *file_ram_alloc(RAMBlock *block,
bool truncate,
Error **errp)
{
MachineState *ms = MACHINE(qdev_get_machine());
void *area;
block->page_size = qemu_fd_getpagesize(fd);
@ -1930,7 +1931,7 @@ static void *file_ram_alloc(RAMBlock *block,
}
if (mem_prealloc) {
os_mem_prealloc(fd, area, memory, smp_cpus, errp);
os_mem_prealloc(fd, area, memory, ms->smp.cpus, errp);
if (errp && *errp) {
qemu_ram_munmap(fd, area, memory);
return NULL;

4
gdbstub.c
View File

@ -34,6 +34,7 @@
#include "sysemu/sysemu.h"
#include "exec/gdbstub.h"
#include "hw/cpu/cluster.h"
#include "hw/boards.h"
#endif
#define MAX_PACKET_LENGTH 4096
@ -1171,6 +1172,9 @@ static int gdb_handle_vcont(GDBState *s, const char *p)
CPU_FOREACH(cpu) {
max_cpus = max_cpus <= cpu->cpu_index ? cpu->cpu_index + 1 : max_cpus;
}
#else
MachineState *ms = MACHINE(qdev_get_machine());
unsigned int max_cpus = ms->smp.max_cpus;
#endif
/* uninitialised CPUs stay 0 */
newstates = g_new0(char, max_cpus);

1
hw/core/numa.c
View File

@ -60,6 +60,7 @@ static void parse_numa_node(MachineState *ms, NumaNodeOptions *node,
uint16_t nodenr;
uint16List *cpus = NULL;
MachineClass *mc = MACHINE_GET_CLASS(ms);
unsigned int max_cpus = ms->smp.max_cpus;
if (node->has_nodeid) {
nodenr = node->nodeid;

4
hw/cpu/core.c
View File

@ -13,6 +13,7 @@
#include "qemu/module.h"
#include "qapi/error.h"
#include "sysemu/cpus.h"
#include "hw/boards.h"
static void core_prop_get_core_id(Object *obj, Visitor *v, const char *name,
void *opaque, Error **errp)
@ -71,13 +72,14 @@ static void core_prop_set_nr_threads(Object *obj, Visitor *v, const char *name,
static void cpu_core_instance_init(Object *obj)
{
MachineState *ms = MACHINE(qdev_get_machine());
CPUCore *core = CPU_CORE(obj);
object_property_add(obj, "core-id", "int", core_prop_get_core_id,
core_prop_set_core_id, NULL, NULL, NULL);
object_property_add(obj, "nr-threads", "int", core_prop_get_nr_threads,
core_prop_set_nr_threads, NULL, NULL, NULL);
core->nr_threads = smp_threads;
core->nr_threads = ms->smp.threads;
}
static void cpu_core_class_init(ObjectClass *oc, void *data)

8
migration/postcopy-ram.c
View File

@ -29,6 +29,7 @@
#include "sysemu/balloon.h"
#include "qemu/error-report.h"
#include "trace.h"
#include "hw/boards.h"
/* Arbitrary limit on size of each discard command,
* keeps them around ~200 bytes
@ -128,6 +129,8 @@ static void migration_exit_cb(Notifier *n, void *data)
static struct PostcopyBlocktimeContext *blocktime_context_new(void)
{
MachineState *ms = MACHINE(qdev_get_machine());
unsigned int smp_cpus = ms->smp.cpus;
PostcopyBlocktimeContext *ctx = g_new0(PostcopyBlocktimeContext, 1);
ctx->page_fault_vcpu_time = g_new0(uint32_t, smp_cpus);
ctx->vcpu_addr = g_new0(uintptr_t, smp_cpus);
@ -141,10 +144,11 @@ static struct PostcopyBlocktimeContext *blocktime_context_new(void)
static uint32List *get_vcpu_blocktime_list(PostcopyBlocktimeContext *ctx)
{
MachineState *ms = MACHINE(qdev_get_machine());
uint32List *list = NULL, *entry = NULL;
int i;
for (i = smp_cpus - 1; i >= 0; i--) {
for (i = ms->smp.cpus - 1; i >= 0; i--) {
entry = g_new0(uint32List, 1);
entry->value = ctx->vcpu_blocktime[i];
entry->next = list;
@ -807,6 +811,8 @@ static void mark_postcopy_blocktime_end(uintptr_t addr)
{
MigrationIncomingState *mis = migration_incoming_get_current();
PostcopyBlocktimeContext *dc = mis->blocktime_ctx;
MachineState *ms = MACHINE(qdev_get_machine());
unsigned int smp_cpus = ms->smp.cpus;
int i, affected_cpu = 0;
bool vcpu_total_blocktime = false;
uint32_t read_vcpu_time, low_time_offset;

6
target/openrisc/sys_helper.c
View File

@ -24,6 +24,9 @@
#include "exec/helper-proto.h"
#include "exception.h"
#include "sysemu/sysemu.h"
#ifndef CONFIG_USER_ONLY
#include "hw/boards.h"
#endif
#define TO_SPR(group, number) (((group) << 11) + (number))
@ -194,6 +197,7 @@ target_ulong HELPER(mfspr)(CPUOpenRISCState *env, target_ulong rd,
target_ulong spr)
{
#ifndef CONFIG_USER_ONLY
MachineState *ms = MACHINE(qdev_get_machine());
OpenRISCCPU *cpu = env_archcpu(env);
CPUState *cs = env_cpu(env);
int idx;
@ -241,7 +245,7 @@ target_ulong HELPER(mfspr)(CPUOpenRISCState *env, target_ulong rd,
return cpu->parent_obj.cpu_index;
case TO_SPR(0, 129): /* NUMCORES */
return max_cpus;
return ms->smp.max_cpus;
case TO_SPR(0, 1024) ... TO_SPR(0, 1024 + (16 * 32)): /* Shadow GPRs */
idx = (spr - 1024);

13
tcg/tcg.c
View File

@ -45,6 +45,10 @@
#include "exec/cpu-common.h"
#include "exec/exec-all.h"
#if !defined(CONFIG_USER_ONLY)
#include "hw/boards.h"
#endif
#include "tcg-op.h"
#if UINTPTR_MAX == UINT32_MAX
@ -620,6 +624,10 @@ static size_t tcg_n_regions(void)
size_t i;
/* Use a single region if all we have is one vCPU thread */
#if !defined(CONFIG_USER_ONLY)
MachineState *ms = MACHINE(qdev_get_machine());
unsigned int max_cpus = ms->smp.max_cpus;
#endif
if (max_cpus == 1 || !qemu_tcg_mttcg_enabled()) {
return 1;
}
@ -752,6 +760,7 @@ void tcg_register_thread(void)
#else
void tcg_register_thread(void)
{
MachineState *ms = MACHINE(qdev_get_machine());
TCGContext *s = g_malloc(sizeof(*s));
unsigned int i, n;
bool err;
@ -769,7 +778,7 @@ void tcg_register_thread(void)
/* Claim an entry in tcg_ctxs */
n = atomic_fetch_inc(&n_tcg_ctxs);
g_assert(n < max_cpus);
g_assert(n < ms->smp.max_cpus);
atomic_set(&tcg_ctxs[n], s);
tcg_ctx = s;
@ -979,6 +988,8 @@ void tcg_context_init(TCGContext *s)
tcg_ctxs = &tcg_ctx;
n_tcg_ctxs = 1;
#else
MachineState *ms = MACHINE(qdev_get_machine());
unsigned int max_cpus = ms->smp.max_cpus;
tcg_ctxs = g_new(TCGContext *, max_cpus);
#endif