Current minimum required version of binutils is 2.23, which supports INVPCID instruction mnemonic.
Replace the byte-wise specification of INVPCID with this proper mnemonic. Signed-off-by: Uros Bizjak <[email protected]> CC: "H. Peter Anvin" <[email protected]> CC: Ingo Molnar <[email protected]> CC: Thomas Gleixner <[email protected]> --- arch/x86/include/asm/invpcid.h | 7 ++----- 1 file changed, 2 insertions(+), 5 deletions(-) diff --git a/arch/x86/include/asm/invpcid.h b/arch/x86/include/asm/invpcid.h index 989cfa86de85..23749bbca0ad 100644 --- a/arch/x86/include/asm/invpcid.h +++ b/arch/x86/include/asm/invpcid.h @@ -12,12 +12,9 @@ static inline void __invpcid(unsigned long pcid, unsigned long addr, * stale TLB entries and, especially if we're flushing global * mappings, we don't want the compiler to reorder any subsequent * memory accesses before the TLB flush. - * - * The hex opcode is invpcid (%ecx), %eax in 32-bit mode and - * invpcid (%rcx), %rax in long mode. */ - asm volatile (".byte 0x66, 0x0f, 0x38, 0x82, 0x01" - : : "m" (desc), "a" (type), "c" (&desc) : "memory"); + asm volatile ("invpcid %1, %0" + : : "r" (type), "m" (desc) : "memory"); } #define INVPCID_TYPE_INDIV_ADDR 0 -- 2.25.4
