Re: [PATCH v4 1/2] KVM: VMX: Cleanup VMX basic information defines and usages

[Huang, Kai]

On Fri, 2024-01-12 at 01:34 -0800, Xin Li wrote:
> Define VMX basic information fields with BIT_ULL()/GENMASK_ULL(), and
> replace hardcoded VMX basic numbers with these field macros.
> 
> Per Sean's ask, save the full/raw value of MSR_IA32_VMX_BASIC in the
> global vmcs_config as type u64 to get rid of the hi/lo crud, and then
> use VMX_BASIC helpers to extract info as needed.
> 
> Tested-by: Shan Kang <shan.kang@xxxxxxxxx>
> Signed-off-by: Xin Li <xin3.li@xxxxxxxxx>
> ---
> 

[...]

> +/* x86 memory types, explicitly used in VMX only */
> +#define MEM_TYPE_WB				0x6ULL
> +#define MEM_TYPE_UC				0x0ULL
> +

[...]

> -#define VMX_EPTP_MT_WB				0x6ull
> -#define VMX_EPTP_MT_UC				0x0ull

Could you also put some words to the changelog to justify your change around
memory type macros?