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RISC-V SBI v0.3 specification defines a set of firmware events that can provide additional information about the current firmware context. All of the firmware event monitoring are enabled now. The firmware events must be defined as raw perf event with MSB set as specified in the specification. Reviewed-by: Anup Patel <anup.patel@wdc.com> Signed-off-by: Atish Patra <atish.patra@wdc.com>