x86/Hyper-V: Report crash data in die() when panic_on_oops is set
authorTianyu Lan <Tianyu.Lan@microsoft.com>
Mon, 6 Apr 2020 15:53:31 +0000 (08:53 -0700)
committerWei Liu <wei.liu@kernel.org>
Sat, 11 Apr 2020 16:19:07 +0000 (17:19 +0100)
commitf3a99e761efa616028b255b4de58e9b5b87c5545
tree0a9c42a1b17d9e538b97afdac98e3a6344e873ee
parent040026df7088c56ccbad28f7042308f67bde63df
x86/Hyper-V: Report crash data in die() when panic_on_oops is set

When oops happens with panic_on_oops unset, the oops
thread is killed by die() and system continues to run.
In such case, guest should not report crash register
data to host since system still runs. Check panic_on_oops
and return directly in hyperv_report_panic() when the function
is called in the die() and panic_on_oops is unset. Fix it.

Fixes: 7ed4325a44ea ("Drivers: hv: vmbus: Make panic reporting to be more useful")
Signed-off-by: Tianyu Lan <Tianyu.Lan@microsoft.com>
Reviewed-by: Michael Kelley <mikelley@microsoft.com>
Link: https://lore.kernel.org/r/20200406155331.2105-7-Tianyu.Lan@microsoft.com
Signed-off-by: Wei Liu <wei.liu@kernel.org>
arch/x86/hyperv/hv_init.c
drivers/hv/vmbus_drv.c
include/asm-generic/mshyperv.h