On Thu, 2025-08-14 at 06:54 -0700, Sean Christopherson wrote:
> > diff --git a/arch/x86/include/asm/tdx.h b/arch/x86/include/asm/tdx.h
> > index 0922265c6bdc..e9a213582f03 100644
> > --- a/arch/x86/include/asm/tdx.h
> > +++ b/arch/x86/include/asm/tdx.h
> > @@ -217,6 +217,7 @@ u64 tdh_mem_page_remove(struct tdx_td *td, u64 gpa, u64 level, u64 *ext_err1, u6
> > u64 tdh_phymem_cache_wb(bool resume);
> > u64 tdh_phymem_page_wbinvd_tdr(struct tdx_td *td);
> > u64 tdh_phymem_page_wbinvd_hkid(u64 hkid, struct page *page);
> > +void tdx_cpu_flush_cache(void);
> > #else
> > static inline void tdx_init(void) { }
> > static inline int tdx_cpu_enable(void) { return -ENODEV; }
> > @@ -224,6 +225,7 @@ static inline int tdx_enable(void) { return -ENODEV; }
> > static inline u32 tdx_get_nr_guest_keyids(void) { return 0; }
> > static inline const char *tdx_dump_mce_info(struct mce *m) { return NULL; }
> > static inline const struct tdx_sys_info *tdx_get_sysinfo(void) { return NULL; }
> > +static inline void tdx_cpu_flush_cache(void) { }
>
> Stub is unnecessary. tdx.c is built iff KVM_INTEL_TDX=y, and that depends on
> INTEL_TDX_HOST.
>
> At a glance, some of the existing stubs are useless as well.
OK I will remove it. Thanks.
