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watchdog: map the watchdog reset to warm reset

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Per debugging requirement, map the watchdog reset to warm reset.
So the ramconsole could be used to capture the kernel log of UOS
before watchdog is hit.

Tracked-On: #2471
Signed-off-by: Yin Fengwei <fengwei.yin@intel.com>
Acked-by: Yu Wang <yu1.wang@intel.com>
This commit is contained in:
Yin Fengwei 2019-01-28 16:09:01 +08:00 committed by wenlingz
parent 2f4e320730
commit 2e5a6e28b9
3 changed files with 11 additions and 1 deletions
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7
devicemodel/core/main.c
View File

@ -322,6 +322,13 @@ delete_cpu(struct vmctx *ctx, int vcpu)
return CPU_EMPTY(&cpumask);
}
void
notify_vmloop_thread(void)
{
pthread_kill(mt_vmm_info[0].mt_thr, SIGCONT);
return;
}
static void
vmexit_inout(struct vmctx *ctx, struct vhm_request *vhm_req, int *pvcpu)
{

4
devicemodel/hw/pci/wdt_i6300esb.c
View File

@ -136,7 +136,9 @@ wdt_expired_handler(void *arg, uint64_t nexp)
wdt_timeout = 1;
/* watchdog timer out, set the uos to reboot */
vm_set_suspend_mode(VM_SUSPEND_FULL_RESET);
vm_set_suspend_mode(VM_SUSPEND_SYSTEM_RESET);
/* Notify vm thread to handle VM_SUSPEND_SYSTEM_RESET request */
notify_vmloop_thread();
mevent_notify();
} else {
/* if not need reboot, just loop timer */

1
devicemodel/include/vmmapi.h
View File

@ -101,6 +101,7 @@ int vm_attach_ioreq_client(struct vmctx *ctx);
int vm_notify_request_done(struct vmctx *ctx, int vcpu);
void vm_clear_ioreq(struct vmctx *ctx);
void vm_set_suspend_mode(enum vm_suspend_how how);
void notify_vmloop_thread(void);
int vm_get_suspend_mode(void);
void vm_destroy(struct vmctx *ctx);
int vm_parse_memsize(const char *optarg, size_t *memsize);