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acrn-dm: add some logs for vm state transition

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add logs for vm state transition to help
analyze some problems.

Tracked-On: #4098
Signed-off-by: Mingqiang Chi <mingqiang.chi@intel.com>
Reviewed-by: Yin Fengwei <fengwei.yin@intel.com>
This commit is contained in:
Mingqiang Chi
2020-05-12 11:04:44 +08:00
committed by wenlingz
parent e58609ad1f
commit 4d3221a7f3
7 changed files with 30 additions and 4 deletions
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21
devicemodel/core/vmmapi.c
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@@ -60,6 +60,22 @@
#define SUPPORT_VHM_API_VERSION_MAJOR 1
#define SUPPORT_VHM_API_VERSION_MINOR 0
#define VM_STATE_STR_LEN 16
static const char vm_state_str[VM_SUSPEND_LAST][VM_STATE_STR_LEN] = {
[VM_SUSPEND_NONE] = "RUNNING",
[VM_SUSPEND_SYSTEM_RESET] = "SYSTEM_RESET",
[VM_SUSPEND_FULL_RESET] = "FULL_RESET",
[VM_SUSPEND_POWEROFF] = "POWEROFF",
[VM_SUSPEND_SUSPEND] = "SUSPEND",
[VM_SUSPEND_HALT] = "HALT",
[VM_SUSPEND_TRIPLEFAULT] = "TRIPLEFAULT"
};
const char *vm_state_to_str(enum vm_suspend_how idx)
{
return (idx < VM_SUSPEND_LAST) ? vm_state_str[idx] : "UNKNOWN";
}
static int
check_api(int fd)
{
@@ -494,12 +510,12 @@ vm_clear_ioreq(struct vmctx *ctx)
ioctl(ctx->fd, IC_CLEAR_VM_IOREQ, NULL);
}
static int suspend_mode = VM_SUSPEND_NONE;
static enum vm_suspend_how suspend_mode = VM_SUSPEND_NONE;
void
vm_set_suspend_mode(enum vm_suspend_how how)
{
pr_notice("vm mode changed from %d to %d\n", suspend_mode, how);
pr_notice("VM state changed from[ %s ] to [ %s ]\n", vm_state_to_str(suspend_mode), vm_state_to_str(how));
suspend_mode = how;
}
@@ -512,6 +528,7 @@ vm_get_suspend_mode(void)
int
vm_suspend(struct vmctx *ctx, enum vm_suspend_how how)
{
pr_info("%s: setting VM state to %s\n", __func__, vm_state_to_str(how));
vm_set_suspend_mode(how);
mevent_notify();