android_kernel_msm-6.1_noth.../include/uapi
Liran Alon 7396d337cf KVM: x86: Return to userspace with internal error on unexpected exit reason
Receiving an unexpected exit reason from hardware should be considered
as a severe bug in KVM. Therefore, instead of just injecting #UD to
guest and ignore it, exit to userspace on internal error so that
it could handle it properly (probably by terminating guest).

In addition, prefer to use vcpu_unimpl() instead of WARN_ONCE()
as handling unexpected exit reason should be a rare unexpected
event (that was expected to never happen) and we prefer to print
a message on it every time it occurs to guest.

Furthermore, dump VMCS/VMCB to dmesg to assist diagnosing such cases.

Reviewed-by: Mihai Carabas <mihai.carabas@oracle.com>
Reviewed-by: Nikita Leshenko <nikita.leshchenko@oracle.com>
Reviewed-by: Joao Martins <joao.m.martins@oracle.com>
Signed-off-by: Liran Alon <liran.alon@oracle.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2019-09-11 15:42:45 +02:00
..
asm-generic Merge branch 'akpm' (patches from Andrew) 2019-07-17 08:58:04 -07:00
drm Merge tag 'drm-next-5.3-2019-07-18' of git://people.freedesktop.org/~agd5f/linux into drm-next 2019-07-19 17:21:48 +10:00
linux KVM: x86: Return to userspace with internal error on unexpected exit reason 2019-09-11 15:42:45 +02:00
misc treewide: add "WITH Linux-syscall-note" to SPDX tag of uapi headers 2019-07-25 11:05:10 +02:00
mtd mtd: abi: do not use C++ style comments in uapi header 2019-07-07 20:31:29 +02:00
rdma treewide: add "WITH Linux-syscall-note" to SPDX tag of uapi headers 2019-07-25 11:05:10 +02:00
scsi treewide: add "WITH Linux-syscall-note" to SPDX tag of uapi headers 2019-07-25 11:05:10 +02:00
sound sound fixes for 5.3-rc4 2019-08-09 09:21:27 -07:00
video
xen
Kbuild kbuild: re-implement Makefile.headersinst without recursion 2019-06-15 19:57:02 +09:00