Re: [PATCH 08/21] x86/msr-index: Add bunch of MSRs for Arch LBR

Peter Zijlstra
2020-06-19T19:12:27Z

On Fri, Jun 19, 2020 at 07:03:56AM -0700, kan.liang@linux.intel.com wrote:

> +#define ARCH_LBR_INFO_MISPRED BIT_ULL(63)
> +#define ARCH_LBR_INFO_IN_TSX BIT_ULL(62)
> +#define ARCH_LBR_INFO_TSX_ABORT BIT_ULL(61)

That's identical to what we already have.

> +#define ARCH_LBR_INFO_CYC_CNT_VALID BIT_ULL(60)

If you call that LBR_INFO_CYC_VALID or something, then we good there.

> +#define ARCH_LBR_INFO_BR_TYPE_OFFSET 56
> +#define ARCH_LBR_INFO_BR_TYPE (0xfull << ARCH_LBR_INFO_BR_TYPE_OFFSET)

Same

> +#define ARCH_LBR_INFO_CYC_CNT 0xffff

And we already have that in LBR_INFO_CYCLES.