Sunil Muthuswamy 81b18bce48 Drivers: HV: Send one page worth of kmsg dump over Hyper-V during panic ... In the VM mode on Hyper-V, currently, when the kernel panics, an error code and few register values are populated in an MSR and the Hypervisor notified. This information is collected on the host. The amount of information currently collected is found to be limited and not very actionable. To gather more actionable data, such as stack trace, the proposal is to write one page worth of kmsg data on an allocated page and the Hypervisor notified of the page address through the MSR. - Sysctl option to control the behavior, with ON by default. Cc: K. Y. Srinivasan <kys@microsoft.com> Cc: Stephen Hemminger <sthemmin@microsoft.com> Signed-off-by: Sunil Muthuswamy <sunilmut@microsoft.com> Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2018-07-08 15:54:31 +02:00
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hv_apic.c	x86/Hyper-V/hv_apic: Build the Hyper-V APIC conditionally	2018-05-19 21:34:11 +02:00
hv_init.c	Drivers: HV: Send one page worth of kmsg dump over Hyper-V during panic	2018-07-08 15:54:31 +02:00
Makefile	x86/Hyper-V/hv_apic: Build the Hyper-V APIC conditionally	2018-05-19 21:34:11 +02:00
mmu.c	x86/hyper-v: move struct hv_flush_pcpu{,ex} definitions to common header	2018-05-26 14:14:33 +02:00