travis.yml: Add CI for macOS

Build the tests on macOS and test TCG. HVF doesn't work in travis.

sieve tests pass but they might timeout in travis, they were left out
because of that.

Suggested-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Roman Bolshakov <r.bolshakov@yadro.com>
Message-Id: <20200901085056.33391-9-r.bolshakov@yadro.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

.travis.yml

@@ -108,6 +108,48 @@ matrix:
       - TESTS="sieve"
       - ACCEL="tcg,firmware=s390x/run"
 
+    - os: osx
+      osx_image: xcode11.6
+      addons:
+        homebrew:
+          packages:
+            - bash
+            - coreutils
+            - gnu-getopt
+            - qemu
+            - x86_64-elf-gcc
+      env:
+      - CONFIG="--cross-prefix=x86_64-elf-
+                --getopt=/usr/local/opt/gnu-getopt/bin/getopt"
+      - BUILD_DIR="build"
+      - TESTS="ioapic-split smptest smptest3 vmexit_cpuid vmexit_mov_from_cr8
+               vmexit_mov_to_cr8 vmexit_inl_pmtimer vmexit_ipi vmexit_ipi_halt
+               vmexit_ple_round_robin vmexit_tscdeadline
+               vmexit_tscdeadline_immed eventinj msr port80 setjmp
+               syscall tsc rmap_chain umip intel_iommu"
+      - ACCEL="tcg"
+
+    - os: osx
+      osx_image: xcode11.6
+      addons:
+        homebrew:
+          packages:
+            - bash
+            - coreutils
+            - gnu-getopt
+            - qemu
+            - i686-elf-gcc
+      env:
+      - CONFIG="--arch=i386 --cross-prefix=i686-elf-
+                --getopt=/usr/local/opt/gnu-getopt/bin/getopt"
+      - BUILD_DIR="build"
+      - TESTS="cmpxchg8b vmexit_cpuid vmexit_mov_from_cr8 vmexit_mov_to_cr8
+               vmexit_inl_pmtimer vmexit_ipi vmexit_ipi_halt
+               vmexit_ple_round_robin vmexit_tscdeadline
+               vmexit_tscdeadline_immed eventinj port80 setjmp tsc
+               taskswitch umip"
+      - ACCEL="tcg"
+
 before_script:
   - if [ "$ACCEL" = "kvm" ]; then
       sudo chgrp kvm /usr/bin/qemu-system-* ;