diff options
| author | Thomas Hellstrom <[email protected]> | 2019-10-21 19:24:02 +0200 |
|---|---|---|
| committer | Ingo Molnar <[email protected]> | 2019-10-22 00:51:44 +0200 |
| commit | db633a4e0e6eda69b6065e3e106f9ea13a0676c3 (patch) | |
| tree | 189a7ad397899f31d0588821027cc774f49cf774 | |
| parent | 7d194c2100ad2a6dded545887d02754948ca5241 (diff) | |
x86/cpu/vmware: Use the full form of INL in VMWARE_HYPERCALL, for clang/llvm
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.
Suggested-by: Sami Tolvanen <[email protected]>
Signed-off-by: Thomas Hellstrom <[email protected]>
Reviewed-by: Nick Desaulniers <[email protected]>
Cc: Borislav Petkov <[email protected]>
Cc: H. Peter Anvin <[email protected]>
Cc: Linus Torvalds <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Sean Christopherson <[email protected]>
Cc: Thomas Gleixner <[email protected]>
Cc: [email protected]
Fixes: b4dd4f6e3648 ("Add a header file for hypercall definitions")
Link: https://lkml.kernel.org/r/[email protected]
Signed-off-by: Ingo Molnar <[email protected]>
| -rw-r--r-- | arch/x86/include/asm/vmware.h | 3 |
1 files changed, 2 insertions, 1 deletions
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) |