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Andreas's fixes to --enable-modules, two 2.1 regression fixes, and a

Browse source 
new qtest.  Michael sent a pull request of his own, so I dropped
 the vhost changes.
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Merge remote-tracking branch 'remotes/bonzini/tags/for-upstream' into staging

Andreas's fixes to --enable-modules, two 2.1 regression fixes, and a
new qtest.  Michael sent a pull request of his own, so I dropped
the vhost changes.

# gpg: Signature made Fri 18 Jul 2014 14:30:34 BST using RSA key ID 9B4D86F2
# gpg: Can't check signature: public key not found

* remotes/bonzini/tags/for-upstream:
  Revert "kvmclock: Ensure time in migration never goes backward"
  Revert "kvmclock: Ensure proper env->tsc value for kvmclock_current_nsec calculation"
  module: Don't complain when a module is absent
  module: Simplify module_load()
  qtest: new test for wdt_ib700
  target-i386: Allow execute from user mode when SMEP is enabled.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Peter Maydell 2014-07-18 14:46:53 +01:00
parent e0097ea371 fa666c10f2
commit 50a2c45da9
5 changed files with 141 additions and 60 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

52
hw/i386/kvm/clock.c
View file

@ -14,10 +14,8 @@
*/
#include "qemu-common.h"
#include "qemu/host-utils.h"
#include "sysemu/sysemu.h"
#include "sysemu/kvm.h"
#include "sysemu/cpus.h"
#include "hw/sysbus.h"
#include "hw/kvm/clock.h"
@ -36,48 +34,6 @@ typedef struct KVMClockState {
bool clock_valid;
} KVMClockState;
struct pvclock_vcpu_time_info {
uint32_t version;
uint32_t pad0;
uint64_t tsc_timestamp;
uint64_t system_time;
uint32_t tsc_to_system_mul;
int8_t tsc_shift;
uint8_t flags;
uint8_t pad[2];
} __attribute__((__packed__)); /* 32 bytes */
static uint64_t kvmclock_current_nsec(KVMClockState *s)
{
CPUState *cpu = first_cpu;
CPUX86State *env = cpu->env_ptr;
hwaddr kvmclock_struct_pa = env->system_time_msr & ~1ULL;
uint64_t migration_tsc = env->tsc;
struct pvclock_vcpu_time_info time;
uint64_t delta;
uint64_t nsec_lo;
uint64_t nsec_hi;
uint64_t nsec;
if (!(env->system_time_msr & 1ULL)) {
/* KVM clock not active */
return 0;
}
cpu_physical_memory_read(kvmclock_struct_pa, &time, sizeof(time));
assert(time.tsc_timestamp <= migration_tsc);
delta = migration_tsc - time.tsc_timestamp;
if (time.tsc_shift < 0) {
delta >>= -time.tsc_shift;
} else {
delta <<= time.tsc_shift;
}
mulu64(&nsec_lo, &nsec_hi, delta, time.tsc_to_system_mul);
nsec = (nsec_lo >> 32) | (nsec_hi << 32);
return nsec + time.system_time;
}
static void kvmclock_vm_state_change(void *opaque, int running,
RunState state)
@ -89,15 +45,9 @@ static void kvmclock_vm_state_change(void *opaque, int running,
if (running) {
struct kvm_clock_data data;
uint64_t time_at_migration = kvmclock_current_nsec(s);
s->clock_valid = false;
/* We can't rely on the migrated clock value, just discard it */
if (time_at_migration) {
s->clock = time_at_migration;
}
data.clock = s->clock;
data.flags = 0;
ret = kvm_vm_ioctl(kvm_state, KVM_SET_CLOCK, &data);
@ -125,8 +75,6 @@ static void kvmclock_vm_state_change(void *opaque, int running,
if (s->clock_valid) {
return;
}
cpu_synchronize_all_states();
ret = kvm_vm_ioctl(kvm_state, KVM_GET_CLOCK, &data);
if (ret < 0) {
fprintf(stderr, "KVM_GET_CLOCK failed: %s\n", strerror(ret));

3
target-i386/helper.c
View file

@ -750,7 +750,8 @@ do_check_protect_pse36:
/* the page can be put in the TLB */
prot = PAGE_READ;
if (!(ptep & PG_NX_MASK) &&
!((env->cr[4] & CR4_SMEP_MASK) && (ptep & PG_USER_MASK))) {
(mmu_idx == MMU_USER_IDX ||
!((env->cr[4] & CR4_SMEP_MASK) && (ptep & PG_USER_MASK)))) {
prot |= PAGE_EXEC;
}
if (pte & PG_DIRTY_MASK) {

3
tests/Makefile
View file

@ -141,6 +141,8 @@ check-qtest-i386-y += tests/i440fx-test$(EXESUF)
check-qtest-i386-y += tests/fw_cfg-test$(EXESUF)
check-qtest-i386-y += tests/blockdev-test$(EXESUF)
check-qtest-i386-y += tests/qdev-monitor-test$(EXESUF)
check-qtest-i386-y += tests/wdt_ib700-test$(EXESUF)
gcov-files-i386-y += hw/watchdog/watchdog.c hw/watchdog/wdt_ib700.c
check-qtest-i386-y += $(check-qtest-pci-y)
gcov-files-i386-y += $(gcov-files-pci-y)
check-qtest-i386-y += tests/vmxnet3-test$(EXESUF)
@ -311,6 +313,7 @@ tests/pcnet-test$(EXESUF): tests/pcnet-test.o
tests/eepro100-test$(EXESUF): tests/eepro100-test.o
tests/vmxnet3-test$(EXESUF): tests/vmxnet3-test.o
tests/ne2000-test$(EXESUF): tests/ne2000-test.o
tests/wdt_ib700-test$(EXESUF): tests/wdt_ib700-test.o
tests/virtio-balloon-test$(EXESUF): tests/virtio-balloon-test.o
tests/virtio-blk-test$(EXESUF): tests/virtio-blk-test.o
tests/virtio-net-test$(EXESUF): tests/virtio-net-test.o

134
tests/wdt_ib700-test.c Normal file
View file

@ -0,0 +1,134 @@
/*
* QTest testcase for the IB700 watchdog
*
* Copyright (c) 2014 Red Hat, Inc.
*
* This work is licensed under the terms of the GNU GPL, version 2 or later.
* See the COPYING file in the top-level directory.
*/
#include <glib.h>
#include <string.h>
#include "libqtest.h"
#include "qemu/osdep.h"
#define NS_PER_SEC 1000000000ULL
static void qmp_check_no_event(void)
{
QDict *resp = qmp("{'execute':'query-status'}");
g_assert(qdict_haskey(resp, "return"));
QDECREF(resp);
}
static QDict *qmp_get_event(const char *name)
{
QDict *event = qmp("");
QDict *data;
g_assert(qdict_haskey(event, "event"));
g_assert(!strcmp(qdict_get_str(event, "event"), name));
if (qdict_haskey(event, "data")) {
data = qdict_get_qdict(event, "data");
QINCREF(data);
} else {
data = NULL;
}
QDECREF(event);
return data;
}
static QDict *ib700_program_and_wait(QTestState *s)
{
clock_step(NS_PER_SEC * 40);
qmp_check_no_event();
/* 2 second limit */
outb(0x443, 14);
/* Ping */
clock_step(NS_PER_SEC);
qmp_check_no_event();
outb(0x443, 14);
/* Disable */
clock_step(NS_PER_SEC);
qmp_check_no_event();
outb(0x441, 1);
clock_step(3 * NS_PER_SEC);
qmp_check_no_event();
/* Enable and let it fire */
outb(0x443, 13);
clock_step(3 * NS_PER_SEC);
qmp_check_no_event();
clock_step(2 * NS_PER_SEC);
return qmp_get_event("WATCHDOG");
}
static void ib700_pause(void)
{
QDict *d;
QTestState *s = qtest_start("-watchdog-action pause -device ib700");
qtest_irq_intercept_in(s, "ioapic");
d = ib700_program_and_wait(s);
g_assert(!strcmp(qdict_get_str(d, "action"), "pause"));
QDECREF(d);
d = qmp_get_event("STOP");
QDECREF(d);
qtest_end();
}
static void ib700_reset(void)
{
QDict *d;
QTestState *s = qtest_start("-watchdog-action reset -device ib700");
qtest_irq_intercept_in(s, "ioapic");
d = ib700_program_and_wait(s);
g_assert(!strcmp(qdict_get_str(d, "action"), "reset"));
QDECREF(d);
d = qmp_get_event("RESET");
QDECREF(d);
qtest_end();
}
static void ib700_shutdown(void)
{
QDict *d;
QTestState *s = qtest_start("-watchdog-action reset -no-reboot -device ib700");
qtest_irq_intercept_in(s, "ioapic");
d = ib700_program_and_wait(s);
g_assert(!strcmp(qdict_get_str(d, "action"), "reset"));
QDECREF(d);
d = qmp_get_event("SHUTDOWN");
QDECREF(d);
qtest_end();
}
static void ib700_none(void)
{
QDict *d;
QTestState *s = qtest_start("-watchdog-action none -device ib700");
qtest_irq_intercept_in(s, "ioapic");
d = ib700_program_and_wait(s);
g_assert(!strcmp(qdict_get_str(d, "action"), "none"));
QDECREF(d);
qtest_end();
}
int main(int argc, char **argv)
{
int ret;
g_test_init(&argc, &argv, NULL);
qtest_add_func("/wdt_ib700/pause", ib700_pause);
qtest_add_func("/wdt_ib700/reset", ib700_reset);
qtest_add_func("/wdt_ib700/shutdown", ib700_shutdown);
qtest_add_func("/wdt_ib700/none", ib700_none);
ret = g_test_run();
return ret;
}

9
util/module.c
View file

@ -202,18 +202,13 @@ static void module_load(module_init_type type)
for (i = 0; i < ARRAY_SIZE(dirs); i++) {
fname = g_strdup_printf("%s/%s%s", dirs[i], *mp, HOST_DSOSUF);
ret = module_load_file(fname);
g_free(fname);
fname = NULL;
/* Try loading until loaded a module file */
if (!ret) {
break;
}
g_free(fname);
fname = NULL;
}
if (ret == -ENOENT) {
fprintf(stderr, "Can't find module: %s\n", *mp);
}
g_free(fname);
}
for (i = 0; i < ARRAY_SIZE(dirs); i++) {