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authorK. Y. Srinivasan <kys@microsoft.com>2017-10-29 11:33:41 -0700
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2017-10-31 13:40:29 +0100
commit7ed4325a44ea5a683547d4ce62578f812938cf94 (patch)
tree41ba328a2255acac2767ab013baf163fff0d74aa /drivers
parent6981fbf3780366093858c5d2dcdaadcd1fbb04be (diff)
Drivers: hv: vmbus: Make panic reporting to be more useful
Hyper-V allows the guest to report panic and the guest can pass additional information. All this is logged on the host. Currently Linux is passing back information that is not particularly useful. Make the following changes: 1. Windows uses crash MSR P0 to report bugcheck code. Follow the same convention for Linux as well. 2. It will be useful to know the gust ID of the Linux guest that has paniced. Pass back this information. These changes will help in better supporting Linux on Hyper-V Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/hv/vmbus_drv.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/hv/vmbus_drv.c b/drivers/hv/vmbus_drv.c
index bca8188f3c8c..8fe13cd76acf 100644
--- a/drivers/hv/vmbus_drv.c
+++ b/drivers/hv/vmbus_drv.c
@@ -65,7 +65,7 @@ static int hyperv_panic_event(struct notifier_block *nb, unsigned long val,
regs = current_pt_regs();
- hyperv_report_panic(regs);
+ hyperv_report_panic(regs, val);
return NOTIFY_DONE;
}
@@ -75,7 +75,7 @@ static int hyperv_die_event(struct notifier_block *nb, unsigned long val,
struct die_args *die = (struct die_args *)args;
struct pt_regs *regs = die->regs;
- hyperv_report_panic(regs);
+ hyperv_report_panic(regs, val);
return NOTIFY_DONE;
}

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