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dm: add log for debuging pci while vm reset

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Print some log to dmesg when init/deinit vdev.

Tracked-On: #2419
Signed-off-by: Yin Fengwei <fengwei.yin@intel.com>
This commit is contained in:
Yin Fengwei 2019-01-15 14:33:07 +08:00 committed by wenlingz
parent 68a2aa5086
commit 928dfefc62
3 changed files with 13 additions and 3 deletions
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3
devicemodel/arch/x86/pm.c
View File

@ -41,6 +41,7 @@
#include "mevent.h"
#include "irq.h"
#include "lpc.h"
#include "dm.h"
static pthread_mutex_t pm_lock = PTHREAD_MUTEX_INITIALIZER;
static struct mevent *power_button;
@ -68,12 +69,14 @@ reset_handler(struct vmctx *ctx, int vcpu, int in, int port, int bytes,
if (*eax & 0x8) {
fprintf(stderr, "full reset\r\n");
write_kmsg("full reset\n");
error = vm_suspend(ctx, VM_SUSPEND_FULL_RESET);
assert(error ==0 || errno == EALREADY);
mevent_notify();
reset_control = 0;
} else if (*eax & 0x4) {
fprintf(stderr, "system reset\r\n");
write_kmsg("system reset\n");
error = vm_suspend(ctx, VM_SUSPEND_SYSTEM_RESET);
assert(error ==0 || errno == EALREADY);
mevent_notify();

1
devicemodel/core/vmmapi.c
View File

@ -409,6 +409,7 @@ vm_get_suspend_mode(void)
int
vm_suspend(struct vmctx *ctx, enum vm_suspend_how how)
{
write_kmsg("vm_suspend mode to: %d\n", how);
vm_set_suspend_mode(how);
mevent_notify();

12
devicemodel/hw/pci/core.c
View File

@ -1273,10 +1273,15 @@ init_pci(struct vmctx *ctx)
continue;
ops = pci_emul_finddev(fi->fi_name);
assert(ops != NULL);
write_kmsg("%s before init ---\n", fi->fi_name);
error = pci_emul_init(ctx, ops, bus, slot,
func, fi);
if (error)
if (error) {
write_kmsg("%s after init failure ---\n", fi->fi_name);
goto pci_emul_init_fail;
}
write_kmsg("%s after init ---\n", fi->fi_name);
success_cnt++;
}
}
@ -1430,8 +1435,9 @@ deinit_pci(struct vmctx *ctx)
continue;
ops = pci_emul_finddev(fi->fi_name);
assert(ops != NULL);
pci_emul_deinit(ctx, ops, bus, slot,
func, fi);
write_kmsg("%s before deinit ---\n", fi->fi_name);
pci_emul_deinit(ctx, ops, bus, slot, func, fi);
write_kmsg("%s after deinit ---\n", fi->fi_name);
}
}
}