From: Thomas Hellstrom <[email protected]> LLVM's assembler doesn't accept the short form INL instruction:
inl (%%dx) but instead insists on the output register to be explicitly specified. This was previously fixed for the VMWARE_PORT macro. Fix it also for the VMWARE_HYPERCALL macro. Cc: [email protected] Cc: "H. Peter Anvin" <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Thomas Gleixner <[email protected]> Cc: x86-ml <[email protected]> Cc: Borislav Petkov <[email protected]> Fixes: b4dd4f6e3648 ("Add a header file for hypercall definitions") Suggested-by: Sami Tolvanen <[email protected]> Signed-off-by: Thomas Hellstrom <[email protected]> Reviewed-by: Nick Desaulniers <[email protected]> --- arch/x86/include/asm/vmware.h | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/arch/x86/include/asm/vmware.h b/arch/x86/include/asm/vmware.h index e00c9e875933..3caac90f9761 100644 --- a/arch/x86/include/asm/vmware.h +++ b/arch/x86/include/asm/vmware.h @@ -29,7 +29,8 @@ /* The low bandwidth call. The low word of edx is presumed clear. */ #define VMWARE_HYPERCALL \ - ALTERNATIVE_2("movw $" VMWARE_HYPERVISOR_PORT ", %%dx; inl (%%dx)", \ + ALTERNATIVE_2("movw $" VMWARE_HYPERVISOR_PORT ", %%dx; " \ + "inl (%%dx), %%eax", \ "vmcall", X86_FEATURE_VMCALL, \ "vmmcall", X86_FEATURE_VMW_VMMCALL) -- 2.21.0
