On January 9, 2017 2:16:07 PM PST, tip-bot for Borislav Petkov <tip...@zytor.com> wrote: >Commit-ID: 5dedade6dfa243c130b85d1e4daba6f027805033 >Gitweb: >http://git.kernel.org/tip/5dedade6dfa243c130b85d1e4daba6f027805033 >Author: Borislav Petkov <b...@suse.de> >AuthorDate: Mon, 9 Jan 2017 12:41:43 +0100 >Committer: Thomas Gleixner <t...@linutronix.de> >CommitDate: Mon, 9 Jan 2017 23:11:13 +0100 > >x86/CPU: Add native CPUID variants returning a single datum > >... similarly to the cpuid_<reg>() variants. > >Signed-off-by: Borislav Petkov <b...@suse.de> >Link: http://lkml.kernel.org/r/20170109114147.5082-2...@alien8.de >Signed-off-by: Thomas Gleixner <t...@linutronix.de> > >--- > arch/x86/include/asm/processor.h | 18 ++++++++++++++++++ > 1 file changed, 18 insertions(+) > >diff --git a/arch/x86/include/asm/processor.h >b/arch/x86/include/asm/processor.h >index eaf1005..1be64da 100644 >--- a/arch/x86/include/asm/processor.h >+++ b/arch/x86/include/asm/processor.h >@@ -219,6 +219,24 @@ static inline void native_cpuid(unsigned int *eax, >unsigned int *ebx, > : "memory"); > } > >+#define native_cpuid_reg(reg) \ >+static inline unsigned int native_cpuid_##reg(unsigned int op) \ >+{ \ >+ unsigned int eax = op, ebx, ecx = 0, edx; \ >+ \ >+ native_cpuid(&eax, &ebx, &ecx, &edx); \ >+ \ >+ return reg; \ >+} >+ >+/* >+ * Native CPUID functions returning a single datum. >+ */ >+native_cpuid_reg(eax) >+native_cpuid_reg(ebx) >+native_cpuid_reg(ecx) >+native_cpuid_reg(edx) >+ > static inline void load_cr3(pgd_t *pgdir) > { > write_cr3(__pa(pgdir));
Any reason to not make these interfaces (leaf, subleaf) from the start? -- Sent from my Android device with K-9 Mail. Please excuse my brevity.
