diff options
| -rw-r--r-- | src/arch/x86_64/Makefile | 4 | ||||
| -rw-r--r-- | src/arch/x86_64/include/bits/hyperv.h | 3 |
2 files changed, 5 insertions, 2 deletions
diff --git a/src/arch/x86_64/Makefile b/src/arch/x86_64/Makefile index 246905cd..b3064b75 100644 --- a/src/arch/x86_64/Makefile +++ b/src/arch/x86_64/Makefile @@ -13,6 +13,10 @@ CFLAGS += -m64 ASFLAGS += --64 LDFLAGS += -m elf_x86_64 +# Prevent use of MMX and SSE registers +# +CFLAGS += -mno-mmx -mno-sse + # EFI requires -fshort-wchar, and nothing else currently uses wchar_t # CFLAGS += -fshort-wchar diff --git a/src/arch/x86_64/include/bits/hyperv.h b/src/arch/x86_64/include/bits/hyperv.h index 975b1eee..fa8bb3f9 100644 --- a/src/arch/x86_64/include/bits/hyperv.h +++ b/src/arch/x86_64/include/bits/hyperv.h @@ -44,8 +44,7 @@ hv_call ( struct hv_hypervisor *hv, unsigned int code, const void *in, : "=a" ( result ), "+r" ( rcx ), "+r" ( rdx ), "+r" ( r8 ) : "m" ( hypercall ) - : "r9", "r10", "r11", "xmm0", "xmm1", "xmm2", - "xmm3", "xmm4", "xmm5" ); + : "r9", "r10", "r11" ); return result; } |