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kvm: selftests: add cr4_cpuid_sync_test
authorWei Huang <wei@redhat.com>
Tue, 26 Jun 2018 03:41:57 +0000 (23:41 -0400)
committerPaolo Bonzini <pbonzini@redhat.com>
Mon, 6 Aug 2018 15:31:59 +0000 (17:31 +0200)
commitca359066889f753ca6d54bb333b783e7a784c0d1
treef701a35b3bfed46ef5bd30c1a1dcb465d9e670d9tree | snapshot
parentd2ce98ca0a192e1bcb89068adfe6cb736f5e351ccommit | diff
kvm: selftests: add cr4_cpuid_sync_test

KVM is supposed to update some guest VM's CPUID bits (e.g. OSXSAVE) when
CR4 is changed. A bug was found in KVM recently and it was fixed by
Commit c4d2188206ba ("KVM: x86: Update cpuid properly when CR4.OSXAVE or
CR4.PKE is changed"). This patch adds a test to verify the synchronization
between guest VM's CR4 and CPUID bits.

Signed-off-by: Wei Huang <wei@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
tools/testing/selftests/kvm/.gitignore diff | blob | history
tools/testing/selftests/kvm/Makefile diff | blob | history
tools/testing/selftests/kvm/cr4_cpuid_sync_test.c [new file with mode: 0644] blob
ep93xx device tree rework repo: git://git.maquefel.me/linux.git