diff options
| author | Ricardo Koller <ricarkol@google.com> | 2021-06-10 18:10:17 -0700 |
|---|---|---|
| committer | Marc Zyngier <maz@kernel.org> | 2021-06-14 09:06:23 +0100 |
| commit | 75275d7fbef47805b77e8af81a4d51e2d92db70f (patch) | |
| tree | a603b148b43d9db96198f234ae884c00934c8e41 /tools/testing/selftests/kvm/include | |
| parent | b7326c01122683b88e273a0cc826cd4c01234470 (diff) | |
KVM: selftests: Introduce UCALL_UNHANDLED for unhandled vector reporting
x86, the only arch implementing exception handling, reports unhandled
vectors using port IO at a specific port number. This replicates what
ucall already does.
Introduce a new ucall type, UCALL_UNHANDLED, for guests to report
unhandled exceptions. Then replace the x86 unhandled vector exception
reporting to use it instead of port IO. This new ucall type will be
used in the next commits by arm64 to report unhandled vectors as well.
Tested: Forcing a page fault in the ./x86_64/xapic_ipi_test
halter_guest_code() shows this:
$ ./x86_64/xapic_ipi_test
...
Unexpected vectored event in guest (vector:0xe)
Signed-off-by: Ricardo Koller <ricarkol@google.com>
Reviewed-by: Andrew Jones <drjones@redhat.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20210611011020.3420067-4-ricarkol@google.com
Diffstat (limited to 'tools/testing/selftests/kvm/include')
| -rw-r--r-- | tools/testing/selftests/kvm/include/kvm_util.h | 1 | ||||
| -rw-r--r-- | tools/testing/selftests/kvm/include/x86_64/processor.h | 2 |
2 files changed, 1 insertions, 2 deletions
diff --git a/tools/testing/selftests/kvm/include/kvm_util.h b/tools/testing/selftests/kvm/include/kvm_util.h index fcd8e3855111..beb76d6deaa9 100644 --- a/tools/testing/selftests/kvm/include/kvm_util.h +++ b/tools/testing/selftests/kvm/include/kvm_util.h @@ -349,6 +349,7 @@ enum { UCALL_SYNC, UCALL_ABORT, UCALL_DONE, + UCALL_UNHANDLED, }; #define UCALL_MAX_ARGS 6 diff --git a/tools/testing/selftests/kvm/include/x86_64/processor.h b/tools/testing/selftests/kvm/include/x86_64/processor.h index e9f584991332..92a62c6999bc 100644 --- a/tools/testing/selftests/kvm/include/x86_64/processor.h +++ b/tools/testing/selftests/kvm/include/x86_64/processor.h @@ -53,8 +53,6 @@ #define CPUID_PKU (1ul << 3) #define CPUID_LA57 (1ul << 16) -#define UNEXPECTED_VECTOR_PORT 0xfff0u - /* General Registers in 64-Bit Mode */ struct gpr64_regs { u64 rax; |