Add tests to verify that RDMSR and WRMSR to x2APIC MSRs behave according to Intel's architecture, e.g. that writes to read-only MSRs and reads to write-only MSRs #GP, accesses to non-existent MSRs #GP, etc... Many of the testcases fail without the associated KVM fixes: https://lore.kernel.org/all/20230107011025.565472-1-seanjc@xxxxxxxxxx Sean Christopherson (3): x86/msr: Skip built-in testcases if user provides custom MSR+value to test x86/apic: Refactor x2APIC reg helper to provide exact semantics x86/msr: Add testcases for x2APIC MSRs lib/x86/apic.h | 59 ++++++++++--- x86/msr.c | 229 ++++++++++++++++++++++++++++++++---------------- x86/vmx_tests.c | 6 +- 3 files changed, 203 insertions(+), 91 deletions(-) base-commit: e11a0e2f881d7bc038f44d8d4f99b2d55a01bc4e -- 2.39.0.314.g84b9a713c41-goog
