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| author | Ivan Orlov <iorlov@amazon.com> | 2024-12-17 18:14:58 +0000 |
|---|---|---|
| committer | Sean Christopherson <seanjc@google.com> | 2024-12-18 15:14:47 -0800 |
| commit | 62e41f6b4f3697e5909cdf70d56e9a7ebd958732 (patch) | |
| tree | dd4a9f1ff670062b74d699c36528418e93603c10 /tools/testing/selftests/kvm/include | |
| parent | KVM: selftests: Add and use a helper function for x86's LIDT (diff) | |
| download | linux-62e41f6b4f3697e5909cdf70d56e9a7ebd958732.tar.gz linux-62e41f6b4f3697e5909cdf70d56e9a7ebd958732.zip | |
KVM: selftests: Add test case for MMIO during vectoring on x86
Extend the 'set_memory_region_test' with an x86-only test case which
covers emulated MMIO during event vectoring error handling. The test case
1) Sets an IDT descriptor base to point to an MMIO address
2) Generates a #GP in the guest
3) Verifies userspace gets the correct exit reason, suberror code, and
GPA in internal.data[3]
Opportunistically add a definition for a non-canonical address to
processor.h so that the source of the #GP is somewhat self-documenting,
and so that future tests don't have to reinvent the wheel.
Signed-off-by: Ivan Orlov <iorlov@amazon.com>
Link: https://lore.kernel.org/r/20241217181458.68690-8-iorlov@amazon.com
[sean: massage changelog]
Signed-off-by: Sean Christopherson <seanjc@google.com>
Diffstat (limited to 'tools/testing/selftests/kvm/include')
| -rw-r--r-- | tools/testing/selftests/kvm/include/x86/processor.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/tools/testing/selftests/kvm/include/x86/processor.h b/tools/testing/selftests/kvm/include/x86/processor.h index daa02b851273..d60da8966772 100644 --- a/tools/testing/selftests/kvm/include/x86/processor.h +++ b/tools/testing/selftests/kvm/include/x86/processor.h @@ -27,6 +27,8 @@ extern uint64_t guest_tsc_khz; #define MAX_NR_CPUID_ENTRIES 100 #endif +#define NONCANONICAL 0xaaaaaaaaaaaaaaaaull + /* Forced emulation prefix, used to invoke the emulator unconditionally. */ #define KVM_FEP "ud2; .byte 'k', 'v', 'm';" |