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VMware exposes the following Pseudo PMCs: 0x10000: Physical host TSC 0x10001: Elapsed real time in ns 0x10002: Elapsed apparent time in ns For more info refer to: https://www.vmware.com/files/pdf/techpaper/Timekeeping-In-VirtualMachines.pdf VMware allows access to these Pseduo-PMCs even when read via RDPMC in Ring3 and CR4.PCE=0. Therefore, commit modifies x86 emulator to allow access to these PMCs in this situation. In addition, emulation of these PMCs were added to kvm_pmu_rdpmc(). Signed-off-by: Arbel Moshe <arbel.moshe@oracle.com> Signed-off-by: Liran Alon <liran.alon@oracle.com> Reviewed-by: Radim Krčmář <rkrcmar@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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.