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[ Upstream commit917dc6068b] vmx_check_nested_events() should return -EBUSY only in case there is a pending L1 event which requires a VMExit from L2 to L1 but such a VMExit is currently blocked. Such VMExits are blocked either because nested_run_pending=1 or an event was reinjected to L2. vmx_check_nested_events() should return 0 in case there are no pending L1 events which requires a VMExit from L2 to L1 or if a VMExit from L2 to L1 was done internally. However, upstream commit which introduced blocking in case an event was reinjected to L2 (commitacc9ab6013("KVM: nVMX: Fix pending events injection")) contains a bug: It returns -EBUSY even if there are no pending L1 events which requires VMExit from L2 to L1. This commit fix this issue. Fixes:acc9ab6013("KVM: nVMX: Fix pending events injection") Signed-off-by: Liran Alon <liran.alon@oracle.com> Reviewed-by: Nikita Leshenko <nikita.leshchenko@oracle.com> Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Signed-off-by: Radim Krčmář <rkrcmar@redhat.com> Signed-off-by: Sasha Levin <alexander.levin@verizon.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Linux kernel ============ This file was moved to Documentation/admin-guide/README.rst Please notice that there are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. There are various text files in the Documentation/ subdirectory, several of them using the Restructured Text markup notation. See Documentation/00-INDEX for a list of what is contained in each file. Please read the Documentation/process/changes.rst file, as it contains the requirements for building and running the kernel, and information about the problems which may result by upgrading your kernel.