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| author | Naman Jain <[email protected]> | 2025-01-16 06:12:24 +0000 |
|---|---|---|
| committer | Wei Liu <[email protected]> | 2025-02-12 02:16:56 +0000 |
| commit | 59115e2e25f42924181055ed7cc1d123af7598b7 (patch) | |
| tree | bf23b41fbb58e51a921225e37dc31876ac8dc7ec /tools/testing/selftests/kvm/x86/nested_exceptions_test.c | |
| parent | Linux 6.14-rc2 (diff) | |
| download | kernel-59115e2e25f42924181055ed7cc1d123af7598b7.tar.gz kernel-59115e2e25f42924181055ed7cc1d123af7598b7.zip | |
x86/hyperv/vtl: Stop kernel from probing VTL0 low memory
For Linux, running in Hyper-V VTL (Virtual Trust Level), kernel in VTL2
tries to access VTL0 low memory in probe_roms. This memory is not
described in the e820 map. Initialize probe_roms call to no-ops
during boot for VTL2 kernel to avoid this. The issue got identified
in OpenVMM which detects invalid accesses initiated from kernel running
in VTL2.
Co-developed-by: Saurabh Sengar <[email protected]>
Signed-off-by: Saurabh Sengar <[email protected]>
Signed-off-by: Naman Jain <[email protected]>
Tested-by: Roman Kisel <[email protected]>
Reviewed-by: Roman Kisel <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Wei Liu <[email protected]>
Message-ID: <[email protected]>
Diffstat (limited to 'tools/testing/selftests/kvm/x86/nested_exceptions_test.c')
0 files changed, 0 insertions, 0 deletions