47bc726fe8
Building the KVM selftests with LLVM's integrated assembler fails with:
$ CFLAGS=-fintegrated-as make -C tools/testing/selftests/kvm CC=clang
lib/x86_64/svm.c:77:16: error: too few operands for instruction
asm volatile ("vmsave\n\t" : : "a" (vmcb_gpa) : "memory");
^
<inline asm>:1:2: note: instantiated into assembly here
vmsave
^
lib/x86_64/svm.c:134:3: error: too few operands for instruction
"vmload\n\t"
^
<inline asm>:1:2: note: instantiated into assembly here
vmload
^
This is because LLVM IAS does not currently support calling vmsave,
vmload, or vmload without an explicit %rax operand.
Add an explicit operand to vmsave, vmload, and vmrum in svm.c. Fixing
this was suggested by Sean Christopherson.
Tested: building without this error in clang 11. The following patch
(not queued yet) needs to be applied to solve the other remaining error:
"selftests: kvm: remove reassignment of non-absolute variables".
Suggested-by: Sean Christopherson <seanjc@google.com>
Link: https://lore.kernel.org/kvm/X+Df2oQczVBmwEzi@google.com/
Reviewed-by: Jim Mattson <jmattson@google.com>
Signed-off-by: Ricardo Koller <ricarkol@google.com>
Message-Id: <20210210031719.769837-1-ricarkol@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
|
||
|---|---|---|
| .. | ||
| aarch64 | ||
| s390x | ||
| x86_64 | ||
| assert.c | ||
| elf.c | ||
| guest_modes.c | ||
| io.c | ||
| kvm_util_internal.h | ||
| kvm_util.c | ||
| perf_test_util.c | ||
| sparsebit.c | ||
| test_util.c | ||