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| author | Sean Christopherson <seanjc@google.com> | 2022-06-14 20:07:04 +0000 |
|---|---|---|
| committer | Sean Christopherson <seanjc@google.com> | 2022-07-13 18:14:24 -0700 |
| commit | d4c94ee8121cce64f2882f3bdcc346dc3d01bcdd (patch) | |
| tree | 21a040301a4c0fc7a80244f0fb1258ac56c22008 /tools/testing/selftests/kvm/lib/x86_64/processor.c | |
| parent | 7fbb653e01fdd45b377674a9e77da473d49afd38 (diff) | |
| download | linux-d4c94ee8121cce64f2882f3bdcc346dc3d01bcdd.tar.bz2 | |
KVM: selftests: Skip AMX test if ARCH_REQ_XCOMP_GUEST_PERM isn't supported
Skip the AMX test instead of silently returning if the host kernel
doesn't support ARCH_REQ_XCOMP_GUEST_PERM. KVM didn't support XFD until
v5.17, so it's extremely unlikely allowing the test to run on a pre-v5.15
kernel is the right thing to do.
Signed-off-by: Sean Christopherson <seanjc@google.com>
Link: https://lore.kernel.org/r/20220614200707.3315957-40-seanjc@google.com
Diffstat (limited to 'tools/testing/selftests/kvm/lib/x86_64/processor.c')
| -rw-r--r-- | tools/testing/selftests/kvm/lib/x86_64/processor.c | 9 |
1 files changed, 1 insertions, 8 deletions
diff --git a/tools/testing/selftests/kvm/lib/x86_64/processor.c b/tools/testing/selftests/kvm/lib/x86_64/processor.c index 6cb93bbd6130..912da2100f90 100644 --- a/tools/testing/selftests/kvm/lib/x86_64/processor.c +++ b/tools/testing/selftests/kvm/lib/x86_64/processor.c @@ -601,14 +601,7 @@ void vm_xsave_req_perm(int bit) TEST_REQUIRE(bitmask & (1ULL << bit)); - rc = syscall(SYS_arch_prctl, ARCH_REQ_XCOMP_GUEST_PERM, bit); - - /* - * The older kernel version(<5.15) can't support - * ARCH_REQ_XCOMP_GUEST_PERM and directly return. - */ - if (rc) - return; + TEST_REQUIRE(!syscall(SYS_arch_prctl, ARCH_REQ_XCOMP_GUEST_PERM, bit)); rc = syscall(SYS_arch_prctl, ARCH_GET_XCOMP_GUEST_PERM, &bitmask); TEST_ASSERT(rc == 0, "prctl(ARCH_GET_XCOMP_GUEST_PERM) error: %ld", rc); |