OpenE2K/qemu-e2k
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* Support multiple -d trace:PATTERN arguments (Daniel)

Browse Source 
* SCSI cleanups/fixes for removable meia (Fam)
 * SCSI security fixes (Li Qiang, PJP)
 * qemu-char segfault fix (Lin Ma)
 * "make help" and qemu-socket cleanups (Marc-André)
 * end of the buffer_is_zero reword (Richard)
 * Fix target-i386 syscall segfault (Stanislav)
 * split irqchip fix/robustification (Wanpeng)
 * misc cleanups (me, Jiangang)
 * x86 vmstate fixes (Pavel)
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Merge remote-tracking branch 'remotes/bonzini/tags/for-upstream' into staging

* Support multiple -d trace:PATTERN arguments (Daniel)
* SCSI cleanups/fixes for removable meia (Fam)
* SCSI security fixes (Li Qiang, PJP)
* qemu-char segfault fix (Lin Ma)
* "make help" and qemu-socket cleanups (Marc-André)
* end of the buffer_is_zero reword (Richard)
* Fix target-i386 syscall segfault (Stanislav)
* split irqchip fix/robustification (Wanpeng)
* misc cleanups (me, Jiangang)
* x86 vmstate fixes (Pavel)

# gpg: Signature made Thu 15 Sep 2016 14:11:35 BST
# gpg:                using RSA key 0xBFFBD25F78C7AE83
# gpg: Good signature from "Paolo Bonzini <bonzini@gnu.org>"
# gpg:                 aka "Paolo Bonzini <pbonzini@redhat.com>"
# Primary key fingerprint: 46F5 9FBD 57D6 12E7 BFD4  E2F7 7E15 100C CD36 69B1
#      Subkey fingerprint: F133 3857 4B66 2389 866C  7682 BFFB D25F 78C7 AE83

* remotes/bonzini/tags/for-upstream:
  pcspk: adding vmstate for save/restore
  kvmvapic: fix state change handler
  pc: apic: introduce APIC macro
  target-i386: Fixed syscall posssible segfault
  log: fix parsing of multiple trace:PATTERN log args
  qemu-char: avoid segfault if user lacks of permisson of a given logfile
  build-sys: add make 'help' target
  linux-user: complete omission of removing uses of strdup
  target-i386: fix ordering of fields in CPUX86State
  pc: apic: fix touch LAPIC when irqchip is split
  scsi: pvscsi: limit process IO loop to ring size
  memory: remove memory_region_destructor_rom_device
  Change net/socket.c to use socket_*() functions
  cutils: Rewrite x86 buffer zero checking
  scsi: mptsas: use g_new0 to allocate MPTSASRequest object
  virtio-scsi: Don't abort when media is ejected
  scsi-disk: Cleaning up around tray open state

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Peter Maydell 2016-09-15 18:12:40 +01:00
commit 5f473241ac
18 changed files with 379 additions and 234 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

37
Makefile
View File

@ -669,3 +669,40 @@ endif
-include $(wildcard *.d tests/*.d)
include $(SRC_PATH)/tests/docker/Makefile.include
.PHONY: help
help:
@echo 'Generic targets:'
@echo ' all - Build all'
@echo ' dir/file.o - Build specified target only'
@echo ' install - Install QEMU, documentation and tools'
@echo ' ctags/TAGS - Generate tags file for editors'
@echo ' cscope - Generate cscope index'
@echo ''
@$(if $(TARGET_DIRS), \
echo 'Architecture specific targets:'; \
$(foreach t, $(TARGET_DIRS), \
printf " %-30s - Build for %s\\n" $(patsubst %,subdir-%,$(t)) $(t);) \
echo '')
@echo 'Cleaning targets:'
@echo ' clean - Remove most generated files but keep the config'
@echo ' distclean - Remove all generated files'
@echo ' dist - Build a distributable tarball'
@echo ''
@echo 'Test targets:'
@echo ' check - Run all tests (check-help for details)'
@echo ' docker - Help about targets running tests inside Docker containers'
@echo ''
@echo 'Documentation targets:'
@echo ' dvi html info pdf'
@echo ' - Build documentation in specified format'
@echo ''
ifdef CONFIG_WIN32
@echo 'Windows targets:'
@echo ' installer - Build NSIS-based installer for qemu-ga'
ifdef QEMU_GA_MSI_ENABLED
@echo ' msi - Build MSI-based installer for qemu-ga'
endif
@echo ''
endif
@echo ' make V=0|1 [targets] 0 => quiet build (default), 1 => verbose build'

3
backends/msmouse.c
View File

@ -159,6 +159,9 @@ static CharDriverState *qemu_chr_open_msmouse(const char *id,
CharDriverState *chr;
chr = qemu_chr_alloc(common, errp);
if (!chr) {
return NULL;
}
chr->chr_write = msmouse_chr_write;
chr->chr_close = msmouse_chr_close;
chr->chr_accept_input = msmouse_chr_accept_input;

17
hw/audio/pcspk.c
View File

@ -52,8 +52,8 @@ typedef struct {
unsigned int pit_count;
unsigned int samples;
unsigned int play_pos;
int data_on;
int dummy_refresh_clock;
uint8_t data_on;
uint8_t dummy_refresh_clock;
} PCSpkState;
static const char *s_spk = "pcspk";
@ -187,6 +187,18 @@ static void pcspk_realizefn(DeviceState *dev, Error **errp)
pcspk_state = s;
}
static const VMStateDescription vmstate_spk = {
.name = "pcspk",
.version_id = 1,
.minimum_version_id = 1,
.minimum_version_id_old = 1,
.fields = (VMStateField[]) {
VMSTATE_UINT8(data_on, PCSpkState),
VMSTATE_UINT8(dummy_refresh_clock, PCSpkState),
VMSTATE_END_OF_LIST()
}
};
static Property pcspk_properties[] = {
DEFINE_PROP_UINT32("iobase", PCSpkState, iobase, -1),
DEFINE_PROP_END_OF_LIST(),
@ -198,6 +210,7 @@ static void pcspk_class_initfn(ObjectClass *klass, void *data)
dc->realize = pcspk_realizefn;
set_bit(DEVICE_CATEGORY_SOUND, dc->categories);
dc->vmsd = &vmstate_spk;
dc->props = pcspk_properties;
/* Reason: realize sets global pcspk_state */
dc->cannot_instantiate_with_device_add_yet = true;

1
hw/i386/kvmvapic.c
View File

@ -768,6 +768,7 @@ static void kvmvapic_vm_state_change(void *opaque, int running,
}
qemu_del_vm_change_state_handler(s->vmsentry);
s->vmsentry = NULL;
}
static int vapic_post_load(void *opaque, int version_id)

18
hw/i386/pc.c
View File

@ -161,13 +161,15 @@ int cpu_get_pic_interrupt(CPUX86State *env)
X86CPU *cpu = x86_env_get_cpu(env);
int intno;
intno = apic_get_interrupt(cpu->apic_state);
if (intno >= 0) {
return intno;
}
/* read the irq from the PIC */
if (!apic_accept_pic_intr(cpu->apic_state)) {
return -1;
if (!kvm_irqchip_in_kernel()) {
intno = apic_get_interrupt(cpu->apic_state);
if (intno >= 0) {
return intno;
}
/* read the irq from the PIC */
if (!apic_accept_pic_intr(cpu->apic_state)) {
return -1;
}
}
intno = pic_read_irq(isa_pic);
@ -180,7 +182,7 @@ static void pic_irq_request(void *opaque, int irq, int level)
X86CPU *cpu = X86_CPU(cs);
DPRINTF("pic_irqs: %s irq %d\n", level? "raise" : "lower", irq);
if (cpu->apic_state) {
if (cpu->apic_state && !kvm_irqchip_in_kernel()) {
CPU_FOREACH(cs) {
cpu = X86_CPU(cs);
if (apic_accept_pic_intr(cpu->apic_state)) {

26
hw/intc/apic.c
View File

@ -39,6 +39,10 @@
static APICCommonState *local_apics[MAX_APICS + 1];
#define TYPE_APIC "apic"
#define APIC(obj) \
OBJECT_CHECK(APICCommonState, (obj), TYPE_APIC)
static void apic_set_irq(APICCommonState *s, int vector_num, int trigger_mode);
static void apic_update_irq(APICCommonState *s);
static void apic_get_delivery_bitmask(uint32_t *deliver_bitmask,
@ -163,7 +167,7 @@ static void apic_local_deliver(APICCommonState *s, int vector)
void apic_deliver_pic_intr(DeviceState *dev, int level)
{
APICCommonState *s = APIC_COMMON(dev);
APICCommonState *s = APIC(dev);
if (level) {
apic_local_deliver(s, APIC_LVT_LINT0);
@ -373,7 +377,7 @@ static void apic_update_irq(APICCommonState *s)
void apic_poll_irq(DeviceState *dev)
{
APICCommonState *s = APIC_COMMON(dev);
APICCommonState *s = APIC(dev);
apic_sync_vapic(s, SYNC_FROM_VAPIC);
apic_update_irq(s);
@ -479,7 +483,7 @@ static void apic_startup(APICCommonState *s, int vector_num)
void apic_sipi(DeviceState *dev)
{
APICCommonState *s = APIC_COMMON(dev);
APICCommonState *s = APIC(dev);
cpu_reset_interrupt(CPU(s->cpu), CPU_INTERRUPT_SIPI);
@ -493,7 +497,7 @@ static void apic_deliver(DeviceState *dev, uint8_t dest, uint8_t dest_mode,
uint8_t delivery_mode, uint8_t vector_num,
uint8_t trigger_mode)
{
APICCommonState *s = APIC_COMMON(dev);
APICCommonState *s = APIC(dev);
uint32_t deliver_bitmask[MAX_APIC_WORDS];
int dest_shorthand = (s->icr[0] >> 18) & 3;
APICCommonState *apic_iter;
@ -550,7 +554,7 @@ static bool apic_check_pic(APICCommonState *s)
int apic_get_interrupt(DeviceState *dev)
{
APICCommonState *s = APIC_COMMON(dev);
APICCommonState *s = APIC(dev);
int intno;
/* if the APIC is installed or enabled, we let the 8259 handle the
@ -584,7 +588,7 @@ int apic_get_interrupt(DeviceState *dev)
int apic_accept_pic_intr(DeviceState *dev)
{
APICCommonState *s = APIC_COMMON(dev);
APICCommonState *s = APIC(dev);
uint32_t lvt0;
if (!s)
@ -663,7 +667,7 @@ static uint32_t apic_mem_readl(void *opaque, hwaddr addr)
if (!dev) {
return 0;
}
s = APIC_COMMON(dev);
s = APIC(dev);
index = (addr >> 4) & 0xff;
switch(index) {
@ -766,7 +770,7 @@ static void apic_mem_writel(void *opaque, hwaddr addr, uint32_t val)
if (!dev) {
return;
}
s = APIC_COMMON(dev);
s = APIC(dev);
trace_apic_mem_writel(addr, val);
@ -870,7 +874,7 @@ static const MemoryRegionOps apic_io_ops = {
static void apic_realize(DeviceState *dev, Error **errp)
{
APICCommonState *s = APIC_COMMON(dev);
APICCommonState *s = APIC(dev);
if (s->id >= MAX_APICS) {
error_setg(errp, "%s initialization failed. APIC ID %d is invalid",
@ -889,7 +893,7 @@ static void apic_realize(DeviceState *dev, Error **errp)
static void apic_unrealize(DeviceState *dev, Error **errp)
{
APICCommonState *s = APIC_COMMON(dev);
APICCommonState *s = APIC(dev);
timer_del(s->timer);
timer_free(s->timer);
@ -912,7 +916,7 @@ static void apic_class_init(ObjectClass *klass, void *data)
}
static const TypeInfo apic_info = {
.name = "apic",
.name = TYPE_APIC,
.instance_size = sizeof(APICCommonState),
.parent = TYPE_APIC_COMMON,
.class_init = apic_class_init,

2
hw/scsi/mptsas.c
View File

@ -304,7 +304,7 @@ static int mptsas_process_scsi_io_request(MPTSASState *s,
goto bad;
}
req = g_new(MPTSASRequest, 1);
req = g_new0(MPTSASRequest, 1);
QTAILQ_INSERT_TAIL(&s->pending, req, next);
req->scsi_io = *scsi_io;
req->dev = s;

22
hw/scsi/scsi-disk.c
View File

@ -396,7 +396,7 @@ static void scsi_read_data(SCSIRequest *req)
return;
}
if (s->tray_open) {
if (!blk_is_available(req->dev->conf.blk)) {
scsi_read_complete(r, -ENOMEDIUM);
return;
}
@ -519,7 +519,7 @@ static void scsi_write_data(SCSIRequest *req)
scsi_write_complete_noio(r, 0);
return;
}
if (s->tray_open) {
if (!blk_is_available(req->dev->conf.blk)) {
scsi_write_complete_noio(r, -ENOMEDIUM);
return;
}
@ -792,10 +792,7 @@ static inline bool media_is_dvd(SCSIDiskState *s)
if (s->qdev.type != TYPE_ROM) {
return false;
}
if (!blk_is_inserted(s->qdev.conf.blk)) {
return false;
}
if (s->tray_open) {
if (!blk_is_available(s->qdev.conf.blk)) {
return false;
}
blk_get_geometry(s->qdev.conf.blk, &nb_sectors);
@ -808,10 +805,7 @@ static inline bool media_is_cd(SCSIDiskState *s)
if (s->qdev.type != TYPE_ROM) {
return false;
}
if (!blk_is_inserted(s->qdev.conf.blk)) {
return false;
}
if (s->tray_open) {
if (!blk_is_available(s->qdev.conf.blk)) {
return false;
}
blk_get_geometry(s->qdev.conf.blk, &nb_sectors);
@ -875,7 +869,7 @@ static int scsi_read_dvd_structure(SCSIDiskState *s, SCSIDiskReq *r,
}
if (format != 0xff) {
if (s->tray_open || !blk_is_inserted(s->qdev.conf.blk)) {
if (!blk_is_available(s->qdev.conf.blk)) {
scsi_check_condition(r, SENSE_CODE(NO_MEDIUM));
return -1;
}
@ -1857,7 +1851,7 @@ static int32_t scsi_disk_emulate_command(SCSIRequest *req, uint8_t *buf)
break;
default:
if (s->tray_open || !blk_is_inserted(s->qdev.conf.blk)) {
if (!blk_is_available(s->qdev.conf.blk)) {
scsi_check_condition(r, SENSE_CODE(NO_MEDIUM));
return 0;
}
@ -1886,7 +1880,7 @@ static int32_t scsi_disk_emulate_command(SCSIRequest *req, uint8_t *buf)
memset(outbuf, 0, r->buflen);
switch (req->cmd.buf[0]) {
case TEST_UNIT_READY:
assert(!s->tray_open && blk_is_inserted(s->qdev.conf.blk));
assert(blk_is_available(s->qdev.conf.blk));
break;
case INQUIRY:
buflen = scsi_disk_emulate_inquiry(req, outbuf);
@ -2126,7 +2120,7 @@ static int32_t scsi_disk_dma_command(SCSIRequest *req, uint8_t *buf)
command = buf[0];
if (s->tray_open || !blk_is_inserted(s->qdev.conf.blk)) {
if (!blk_is_available(s->qdev.conf.blk)) {
scsi_check_condition(r, SENSE_CODE(NO_MEDIUM));
return 0;
}

15
hw/scsi/virtio-scsi.c
View File

@ -236,6 +236,13 @@ static void virtio_scsi_cancel_notify(Notifier *notifier, void *data)
g_free(n);
}
static inline void virtio_scsi_ctx_check(VirtIOSCSI *s, SCSIDevice *d)
{
if (s->dataplane_started && d && blk_is_available(d->conf.blk)) {
assert(blk_get_aio_context(d->conf.blk) == s->ctx);
}
}
/* Return 0 if the request is ready to be completed and return to guest;
* -EINPROGRESS if the request is submitted and will be completed later, in the
* case of async cancellation. */
@ -247,9 +254,7 @@ static int virtio_scsi_do_tmf(VirtIOSCSI *s, VirtIOSCSIReq *req)
int target;
int ret = 0;
if (s->dataplane_started && d) {
assert(blk_get_aio_context(d->conf.blk) == s->ctx);
}
virtio_scsi_ctx_check(s, d);
/* Here VIRTIO_SCSI_S_OK means "FUNCTION COMPLETE". */
req->resp.tmf.response = VIRTIO_SCSI_S_OK;
@ -539,9 +544,7 @@ static bool virtio_scsi_handle_cmd_req_prepare(VirtIOSCSI *s, VirtIOSCSIReq *req
virtio_scsi_complete_cmd_req(req);
return false;
}
if (s->dataplane_started) {
assert(blk_get_aio_context(d->conf.blk) == s->ctx);
}
virtio_scsi_ctx_check(s, d);
req->sreq = scsi_req_new(d, req->req.cmd.tag,
virtio_scsi_get_lun(req->req.cmd.lun),
req->req.cmd.cdb, req);

5
hw/scsi/vmw_pvscsi.c
View File

@ -247,8 +247,11 @@ static hwaddr
pvscsi_ring_pop_req_descr(PVSCSIRingInfo *mgr)
{
uint32_t ready_ptr = RS_GET_FIELD(mgr, reqProdIdx);
uint32_t ring_size = PVSCSI_MAX_NUM_PAGES_REQ_RING
* PVSCSI_MAX_NUM_REQ_ENTRIES_PER_PAGE;
if (ready_ptr != mgr->consumed_ptr) {
if (ready_ptr != mgr->consumed_ptr
&& ready_ptr - mgr->consumed_ptr < ring_size) {
uint32_t next_ready_ptr =
mgr->consumed_ptr++ & mgr->txr_len_mask;
uint32_t next_ready_page =

7
linux-user/elfload.c
View File

@ -2718,7 +2718,6 @@ static int core_dump_filename(const TaskState *ts, char *buf,
size_t bufsize)
{
char timestamp[64];
char *filename = NULL;
char *base_filename = NULL;
struct timeval tv;
struct tm tm;
@ -2731,14 +2730,12 @@ static int core_dump_filename(const TaskState *ts, char *buf,
return (-1);
}
filename = strdup(ts->bprm->filename);
base_filename = strdup(basename(filename));
base_filename = g_path_get_basename(ts->bprm->filename);
(void) strftime(timestamp, sizeof (timestamp), "%Y%m%d-%H%M%S",
localtime_r(&tv.tv_sec, &tm));
(void) snprintf(buf, bufsize, "qemu_%s_%s_%d.core",
base_filename, timestamp, (int)getpid());
free(base_filename);
free(filename);
g_free(base_filename);
return (0);
}

7
memory.c
View File

@ -944,11 +944,6 @@ static void memory_region_destructor_ram(MemoryRegion *mr)
qemu_ram_free(mr->ram_block);
}
static void memory_region_destructor_rom_device(MemoryRegion *mr)
{
qemu_ram_free(mr->ram_block);
}
static bool memory_region_need_escape(char c)
{
return c == '/' || c == '[' || c == '\\' || c == ']';
@ -1405,7 +1400,7 @@ void memory_region_init_rom_device(MemoryRegion *mr,
mr->opaque = opaque;
mr->terminates = true;
mr->rom_device = true;
mr->destructor = memory_region_destructor_rom_device;
mr->destructor = memory_region_destructor_ram;
mr->ram_block = qemu_ram_alloc(size, mr, errp);
}

127
net/socket.c
View File

@ -489,90 +489,105 @@ static int net_socket_listen_init(NetClientState *peer,
{
NetClientState *nc;
NetSocketState *s;
struct sockaddr_in saddr;
int fd, ret;
SocketAddress *saddr;
int ret;
Error *local_error = NULL;
if (parse_host_port(&saddr, host_str) < 0)
return -1;
fd = qemu_socket(PF_INET, SOCK_STREAM, 0);
if (fd < 0) {
perror("socket");
saddr = socket_parse(host_str, &local_error);
if (saddr == NULL) {
error_report_err(local_error);
return -1;
}
qemu_set_nonblock(fd);
socket_set_fast_reuse(fd);
ret = bind(fd, (struct sockaddr *)&saddr, sizeof(saddr));
ret = socket_listen(saddr, &local_error);
if (ret < 0) {
perror("bind");
closesocket(fd);
return -1;
}
ret = listen(fd, 0);
if (ret < 0) {
perror("listen");
closesocket(fd);
qapi_free_SocketAddress(saddr);
error_report_err(local_error);
return -1;
}
nc = qemu_new_net_client(&net_socket_info, peer, model, name);
s = DO_UPCAST(NetSocketState, nc, nc);
s->fd = -1;
s->listen_fd = fd;
s->listen_fd = ret;
s->nc.link_down = true;
qemu_set_fd_handler(s->listen_fd, net_socket_accept, NULL, s);
qapi_free_SocketAddress(saddr);
return 0;
}
typedef struct {
NetClientState *peer;
SocketAddress *saddr;
char *model;
char *name;
} socket_connect_data;
static void socket_connect_data_free(socket_connect_data *c)
{
qapi_free_SocketAddress(c->saddr);
g_free(c->model);
g_free(c->name);
g_free(c);
}
static void net_socket_connected(int fd, Error *err, void *opaque)
{
socket_connect_data *c = opaque;
NetSocketState *s;
char *addr_str = NULL;
Error *local_error = NULL;
addr_str = socket_address_to_string(c->saddr, &local_error);
if (addr_str == NULL) {
error_report_err(local_error);
closesocket(fd);
goto end;
}
s = net_socket_fd_init(c->peer, c->model, c->name, fd, true);
if (!s) {
closesocket(fd);
goto end;
}
snprintf(s->nc.info_str, sizeof(s->nc.info_str),
"socket: connect to %s", addr_str);
end:
g_free(addr_str);
socket_connect_data_free(c);
}
static int net_socket_connect_init(NetClientState *peer,
const char *model,
const char *name,
const char *host_str)
{
NetSocketState *s;
int fd, connected, ret;
struct sockaddr_in saddr;
socket_connect_data *c = g_new0(socket_connect_data, 1);
int fd = -1;
Error *local_error = NULL;
if (parse_host_port(&saddr, host_str) < 0)
return -1;
c->peer = peer;
c->model = g_strdup(model);
c->name = g_strdup(name);
c->saddr = socket_parse(host_str, &local_error);
if (c->saddr == NULL) {
goto err;
}
fd = qemu_socket(PF_INET, SOCK_STREAM, 0);
fd = socket_connect(c->saddr, &local_error, net_socket_connected, c);
if (fd < 0) {
perror("socket");
return -1;
goto err;
}
qemu_set_nonblock(fd);
connected = 0;
for(;;) {
ret = connect(fd, (struct sockaddr *)&saddr, sizeof(saddr));
if (ret < 0) {
if (errno == EINTR || errno == EWOULDBLOCK) {
/* continue */
} else if (errno == EINPROGRESS ||
errno == EALREADY ||
errno == EINVAL) {
break;
} else {
perror("connect");
closesocket(fd);
return -1;
}
} else {
connected = 1;
break;
}
}
s = net_socket_fd_init(peer, model, name, fd, connected);
if (!s)
return -1;
snprintf(s->nc.info_str, sizeof(s->nc.info_str),
"socket: connect to %s:%d",
inet_ntoa(saddr.sin_addr), ntohs(saddr.sin_port));
return 0;
err:
error_report_err(local_error);
socket_connect_data_free(c);
return -1;
}
static int net_socket_mcast_init(NetClientState *peer,

6
qemu-char.c
View File

@ -1230,6 +1230,9 @@ static CharDriverState *qemu_chr_open_stdio(const char *id,
sigaction(SIGCONT, &act, NULL);
chr = qemu_chr_open_fd(0, 1, common, errp);
if (!chr) {
return NULL;
}
chr->chr_close = qemu_chr_close_stdio;
chr->chr_set_echo = qemu_chr_set_echo_stdio;
if (opts->has_signal) {
@ -1686,6 +1689,9 @@ static CharDriverState *qemu_chr_open_tty_fd(int fd,
tty_serial_init(fd, 115200, 'N', 8, 1);
chr = qemu_chr_open_fd(fd, fd, backend, errp);
if (!chr) {
return NULL;
}
chr->chr_ioctl = tty_serial_ioctl;
chr->chr_close = qemu_chr_close_tty;
return chr;

12
target-i386/cpu.h
View File

@ -1035,6 +1035,9 @@ typedef struct CPUX86State {
uint64_t tsc;
uint64_t tsc_adjust;
uint64_t tsc_deadline;
uint64_t tsc_aux;
uint64_t xcr0;
uint64_t mcg_status;
uint64_t msr_ia32_misc_enable;
@ -1051,6 +1054,8 @@ typedef struct CPUX86State {
uint64_t pat;
uint32_t smbase;
uint32_t pkru;
/* End of state preserved by INIT (dummy marker). */
struct {} end_init_save;
@ -1135,20 +1140,15 @@ typedef struct CPUX86State {
uint64_t mcg_ctl;
uint64_t mcg_ext_ctl;
uint64_t mce_banks[MCE_BANKS_DEF*4];
uint64_t tsc_aux;
uint64_t xstate_bv;
/* vmstate */
uint16_t fpus_vmstate;
uint16_t fptag_vmstate;
uint16_t fpregs_format_vmstate;
uint64_t xstate_bv;
uint64_t xcr0;
uint64_t xss;
uint32_t pkru;
TPRAccess tpr_access_type;
} CPUX86State;

36
target-i386/seg_helper.c
View File

@ -1137,25 +1137,27 @@ static void do_interrupt_real(CPUX86State *env, int intno, int is_int,
static void do_interrupt_user(CPUX86State *env, int intno, int is_int,
int error_code, target_ulong next_eip)
{
SegmentCache *dt;
target_ulong ptr;
int dpl, cpl, shift;
uint32_t e2;
if (is_int) {
SegmentCache *dt;
target_ulong ptr;
int dpl, cpl, shift;
uint32_t e2;
dt = &env->idt;
if (env->hflags & HF_LMA_MASK) {
shift = 4;
} else {
shift = 3;
}
ptr = dt->base + (intno << shift);
e2 = cpu_ldl_kernel(env, ptr + 4);
dt = &env->idt;
if (env->hflags & HF_LMA_MASK) {
shift = 4;
} else {
shift = 3;
}
ptr = dt->base + (intno << shift);
e2 = cpu_ldl_kernel(env, ptr + 4);
dpl = (e2 >> DESC_DPL_SHIFT) & 3;
cpl = env->hflags & HF_CPL_MASK;
/* check privilege if software int */
if (is_int && dpl < cpl) {
raise_exception_err(env, EXCP0D_GPF, (intno << shift) + 2);
dpl = (e2 >> DESC_DPL_SHIFT) & 3;
cpl = env->hflags & HF_CPL_MASK;
/* check privilege if software int */
if (dpl < cpl) {
raise_exception_err(env, EXCP0D_GPF, (intno << shift) + 2);
}
}
/* Since we emulate only user space, we cannot do more than

231
util/bufferiszero.c
View File

@ -26,38 +26,6 @@
#include "qemu/cutils.h"
#include "qemu/bswap.h"
/* vector definitions */
extern void link_error(void);
#define ACCEL_BUFFER_ZERO(NAME, SIZE, VECTYPE, NONZERO) \
static bool NAME(const void *buf, size_t len) \
{ \
const void *end = buf + len; \
do { \
const VECTYPE *p = buf; \
VECTYPE t; \
__builtin_prefetch(buf + SIZE); \
barrier(); \
if (SIZE == sizeof(VECTYPE) * 4) { \
t = (p[0] | p[1]) | (p[2] | p[3]); \
} else if (SIZE == sizeof(VECTYPE) * 8) { \
t = p[0] | p[1]; \
t |= p[2] | p[3]; \
t |= p[4] | p[5]; \
t |= p[6] | p[7]; \
} else { \
link_error(); \
} \
if (unlikely(NONZERO(t))) { \
return false; \
} \
buf += SIZE; \
} while (buf < end); \
return true; \
}
static bool
buffer_zero_int(const void *buf, size_t len)
{
@ -96,47 +64,174 @@ buffer_zero_int(const void *buf, size_t len)
}
}
#if defined(CONFIG_AVX2_OPT) || (defined(CONFIG_CPUID_H) && defined(__SSE2__))
#include <cpuid.h>
#if defined(CONFIG_AVX2_OPT) || defined(__SSE2__)
/* Do not use push_options pragmas unnecessarily, because clang
* does not support them.
*/
#ifndef __SSE2__
#ifdef CONFIG_AVX2_OPT
#pragma GCC push_options
#pragma GCC target("sse2")
#endif
#include <emmintrin.h>
#define SSE2_NONZERO(X) \
(_mm_movemask_epi8(_mm_cmpeq_epi8((X), _mm_setzero_si128())) != 0xFFFF)
ACCEL_BUFFER_ZERO(buffer_zero_sse2, 64, __m128i, SSE2_NONZERO)
#ifndef __SSE2__
/* Note that each of these vectorized functions require len >= 64. */
static bool
buffer_zero_sse2(const void *buf, size_t len)
{
__m128i t = _mm_loadu_si128(buf);
__m128i *p = (__m128i *)(((uintptr_t)buf + 5 * 16) & -16);
__m128i *e = (__m128i *)(((uintptr_t)buf + len) & -16);
__m128i zero = _mm_setzero_si128();
/* Loop over 16-byte aligned blocks of 64. */
while (likely(p <= e)) {
__builtin_prefetch(p);
t = _mm_cmpeq_epi8(t, zero);
if (unlikely(_mm_movemask_epi8(t) != 0xFFFF)) {
return false;
}
t = p[-4] | p[-3] | p[-2] | p[-1];
p += 4;
}
/* Finish the aligned tail. */
t |= e[-3];
t |= e[-2];
t |= e[-1];
/* Finish the unaligned tail. */
t |= _mm_loadu_si128(buf + len - 16);
return _mm_movemask_epi8(_mm_cmpeq_epi8(t, zero)) == 0xFFFF;
}
#ifdef CONFIG_AVX2_OPT
#pragma GCC pop_options
#endif
#ifdef CONFIG_AVX2_OPT
/* Note that due to restrictions/bugs wrt __builtin functions in gcc <= 4.8,
* the includes have to be within the corresponding push_options region, and
* therefore the regions themselves have to be ordered with increasing ISA.
*/
#pragma GCC push_options
#pragma GCC target("sse4")
#include <smmintrin.h>
#define SSE4_NONZERO(X) !_mm_testz_si128((X), (X))
ACCEL_BUFFER_ZERO(buffer_zero_sse4, 64, __m128i, SSE4_NONZERO)
#pragma GCC pop_options
static bool
buffer_zero_sse4(const void *buf, size_t len)
{
__m128i t = _mm_loadu_si128(buf);
__m128i *p = (__m128i *)(((uintptr_t)buf + 5 * 16) & -16);
__m128i *e = (__m128i *)(((uintptr_t)buf + len) & -16);
/* Loop over 16-byte aligned blocks of 64. */
while (likely(p <= e)) {
__builtin_prefetch(p);
if (unlikely(!_mm_testz_si128(t, t))) {
return false;
}
t = p[-4] | p[-3] | p[-2] | p[-1];
p += 4;
}
/* Finish the aligned tail. */
t |= e[-3];
t |= e[-2];
t |= e[-1];
/* Finish the unaligned tail. */
t |= _mm_loadu_si128(buf + len - 16);
return _mm_testz_si128(t, t);
}
#pragma GCC pop_options
#pragma GCC push_options
#pragma GCC target("avx2")
#include <immintrin.h>
#define AVX2_NONZERO(X) !_mm256_testz_si256((X), (X))
ACCEL_BUFFER_ZERO(buffer_zero_avx2, 128, __m256i, AVX2_NONZERO)
static bool
buffer_zero_avx2(const void *buf, size_t len)
{
/* Begin with an unaligned head of 32 bytes. */
__m256i t = _mm256_loadu_si256(buf);
__m256i *p = (__m256i *)(((uintptr_t)buf + 5 * 32) & -32);
__m256i *e = (__m256i *)(((uintptr_t)buf + len) & -32);
if (likely(p <= e)) {
/* Loop over 32-byte aligned blocks of 128. */
do {
__builtin_prefetch(p);
if (unlikely(!_mm256_testz_si256(t, t))) {
return false;
}
t = p[-4] | p[-3] | p[-2] | p[-1];
p += 4;
} while (p <= e);
} else {
t |= _mm256_loadu_si256(buf + 32);
if (len <= 128) {
goto last2;
}
}
/* Finish the last block of 128 unaligned. */
t |= _mm256_loadu_si256(buf + len - 4 * 32);
t |= _mm256_loadu_si256(buf + len - 3 * 32);
last2:
t |= _mm256_loadu_si256(buf + len - 2 * 32);
t |= _mm256_loadu_si256(buf + len - 1 * 32);
return _mm256_testz_si256(t, t);
}
#pragma GCC pop_options
#endif /* CONFIG_AVX2_OPT */
/* Note that for test_buffer_is_zero_next_accel, the most preferred
* ISA must have the least significant bit.
*/
#define CACHE_AVX2 1
#define CACHE_SSE4 2
#define CACHE_SSE2 4
/* Make sure that these variables are appropriately initialized when
* SSE2 is enabled on the compiler command-line, but the compiler is
* too old to support <cpuid.h>.
*/
#ifdef CONFIG_AVX2_OPT
# define INIT_CACHE 0
# define INIT_ACCEL buffer_zero_int
#else
# ifndef __SSE2__
# error "ISA selection confusion"
# endif
# define INIT_CACHE CACHE_SSE2
# define INIT_ACCEL buffer_zero_sse2
#endif
#define CACHE_AVX2 2
#define CACHE_AVX1 4
#define CACHE_SSE4 8
#define CACHE_SSE2 16
static unsigned cpuid_cache = INIT_CACHE;
static bool (*buffer_accel)(const void *, size_t) = INIT_ACCEL;
static unsigned cpuid_cache;
static void init_accel(unsigned cache)
{
bool (*fn)(const void *, size_t) = buffer_zero_int;
if (cache & CACHE_SSE2) {
fn = buffer_zero_sse2;
}
#ifdef CONFIG_AVX2_OPT
if (cache & CACHE_SSE4) {
fn = buffer_zero_sse4;
}
if (cache & CACHE_AVX2) {
fn = buffer_zero_avx2;
}
#endif
buffer_accel = fn;
}
#ifdef CONFIG_AVX2_OPT
#include <cpuid.h>
static void __attribute__((constructor)) init_cpuid_cache(void)
{
int max = __get_cpuid_max(0, NULL);
@ -154,24 +249,21 @@ static void __attribute__((constructor)) init_cpuid_cache(void)
}
/* We must check that AVX is not just available, but usable. */
if ((c & bit_OSXSAVE) && (c & bit_AVX)) {
__asm("xgetbv" : "=a"(a), "=d"(d) : "c"(0));
if ((a & 6) == 6) {
cache |= CACHE_AVX1;
if (max >= 7) {
__cpuid_count(7, 0, a, b, c, d);
if (b & bit_AVX2) {
cache |= CACHE_AVX2;
}
}
if ((c & bit_OSXSAVE) && (c & bit_AVX) && max >= 7) {
int bv;
__asm("xgetbv" : "=a"(bv), "=d"(d) : "c"(0));
__cpuid_count(7, 0, a, b, c, d);
if ((bv & 6) == 6 && (b & bit_AVX2)) {
cache |= CACHE_AVX2;
}
}
#endif
}
cpuid_cache = cache;
init_accel(cache);
}
#endif /* CONFIG_AVX2_OPT */
#define HAVE_NEXT_ACCEL
bool test_buffer_is_zero_next_accel(void)
{
/* If no bits set, we just tested buffer_zero_int, and there
@ -181,31 +273,20 @@ bool test_buffer_is_zero_next_accel(void)
}
/* Disable the accelerator we used before and select a new one. */
cpuid_cache &= cpuid_cache - 1;
init_accel(cpuid_cache);
return true;
}
static bool select_accel_fn(const void *buf, size_t len)
{
uintptr_t ibuf = (uintptr_t)buf;
#ifdef CONFIG_AVX2_OPT
if (len % 128 == 0 && ibuf % 32 == 0 && (cpuid_cache & CACHE_AVX2)) {
return buffer_zero_avx2(buf, len);
}
if (len % 64 == 0 && ibuf % 16 == 0 && (cpuid_cache & CACHE_SSE4)) {
return buffer_zero_sse4(buf, len);
}
#endif
if (len % 64 == 0 && ibuf % 16 == 0 && (cpuid_cache & CACHE_SSE2)) {
return buffer_zero_sse2(buf, len);
if (likely(len >= 64)) {
return buffer_accel(buf, len);
}
return buffer_zero_int(buf, len);
}
#else
#define select_accel_fn buffer_zero_int
#endif
#ifndef HAVE_NEXT_ACCEL
bool test_buffer_is_zero_next_accel(void)
{
return false;

41
util/log.c
View File

@ -275,53 +275,42 @@ const QEMULogItem qemu_log_items[] = {
{ 0, NULL, NULL },
};
static int cmp1(const char *s1, int n, const char *s2)
{
if (strlen(s2) != n) {
return 0;
}
return memcmp(s1, s2, n) == 0;
}
/* takes a comma separated list of log masks. Return 0 if error. */
int qemu_str_to_log_mask(const char *str)
{
const QEMULogItem *item;
int mask;
const char *p, *p1;
int mask = 0;
char **parts = g_strsplit(str, ",", 0);
char **tmp;
p = str;
mask = 0;
for (;;) {
p1 = strchr(p, ',');
if (!p1) {
p1 = p + strlen(p);
}
if (cmp1(p,p1-p,"all")) {
for (tmp = parts; tmp && *tmp; tmp++) {
if (g_str_equal(*tmp, "all")) {
for (item = qemu_log_items; item->mask != 0; item++) {
mask |= item->mask;
}
#ifdef CONFIG_TRACE_LOG
} else if (strncmp(p, "trace:", 6) == 0 && p + 6 != p1) {
trace_enable_events(p + 6);
} else if (g_str_has_prefix(*tmp, "trace:") && (*tmp)[6] != '\0') {
trace_enable_events((*tmp) + 6);
mask |= LOG_TRACE;
#endif
} else {
for (item = qemu_log_items; item->mask != 0; item++) {
if (cmp1(p, p1 - p, item->name)) {
if (g_str_equal(*tmp, item->name)) {
goto found;
}
}
return 0;
goto error;
found:
mask |= item->mask;
}
if (*p1 != ',') {
break;
}
p = p1 + 1;
}
g_strfreev(parts);
return mask;
error:
g_strfreev(parts);
return 0;
}
void qemu_print_log_usage(FILE *f)