linux/tools/testing
Paolo Bonzini 204c91eff7 KVM: selftests: do not blindly clobber registers in guest asm
The guest_code of sync_regs_test is assuming that the compiler will not
touch %r11 outside the asm that increments it, which is a bit brittle.
Instead, we can increment a variable and use a dummy asm to ensure the
increment is not optimized away.  However, we also need to use a
callee-save register or the compiler will insert a save/restore around
the vmexit, breaking the whole idea behind the test.

(Yes, "if it ain't broken...", but I would like the test to be clean
before it is copied into the upcoming s390 selftests).

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2019-05-24 21:27:10 +02:00
..
fault-injection
ktest ktest: update sample.conf for grub2bls 2019-05-10 14:54:52 -04:00
nvdimm tools/testing/nvdimm: add watermarks for dax_pmem* modules 2019-04-22 15:56:28 -07:00
radix-tree radix tree: Don't return retry entries from lookup 2018-12-06 08:26:16 -05:00
scatterlist
selftests KVM: selftests: do not blindly clobber registers in guest asm 2019-05-24 21:27:10 +02:00
vsock