Hi All, This is the version 6 of the patch written to add tests for AMD SEV-ES #VC handling. This version attempts to address review comments to the previous version of the patch in https://lore.kernel.org/kvm/20220208162623.18368-1-vkarasulli@xxxxxxx/. Changes in this version: 1. The patch in the previous version is split into 4 parts. 2. Constants in function sev_es_nae_mmio are replaced by macros. Thanks, Vasant Vasant Karasulli (4): x86/tests: Add Kconfig options for testing AMD SEV related features. x86/tests: Add KUnit based tests to validate Linux's VC handling for instructions cpuid and wbinvd. These tests: 1. install a kretprobe on the #VC handler (sev_es_ghcb_hv_call, to access GHCB before/after the resulting VMGEXIT). 2. trigger an NAE by executing either cpuid or wbinvd. 3. check that the kretprobe was hit with the right exit_code available in GHCB. x86/tests: Add KUnit based tests to validate Linux's VC handling for instructions accessing registers such as MSR and DR7. These tests: 1. install a kretprobe on the #VC handler (sev_es_ghcb_hv_call, to access GHCB before/after the resulting VMGEXIT). 2. trigger an NAE by accessing either MSR or DR7. 3. check that the kretprobe was hit with the right exit_code available in GHCB. x86/tests: Add KUnit based tests to validate Linux's VC handling for IO instructions. These tests: 1. install a kretprobe on the #VC handler (sev_es_ghcb_hv_call, to access GHCB before/after the resulting VMGEXIT). 2. trigger an NAE by issuing an IO instruction. 3. check that the kretprobe was hit with the right exit_code available in GHCB. arch/x86/Kbuild | 2 + arch/x86/Kconfig.debug | 16 ++++ arch/x86/kernel/Makefile | 7 ++ arch/x86/tests/Makefile | 3 + arch/x86/tests/sev-test-vc.c | 155 +++++++++++++++++++++++++++++++++++ 5 files changed, 183 insertions(+) create mode 100644 arch/x86/tests/Makefile create mode 100644 arch/x86/tests/sev-test-vc.c base-commit: 09688c0166e76ce2fb85e86b9d99be8b0084cdf9 prerequisite-patch-id: b74bc39d7ca69ad86b5f9090047c44ab039f4622 prerequisite-patch-id: a53a291b59b4ceaffa25a9a08dfa08b5a78a01b9 -- 2.32.0
