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| author |   Nuno Das Neves <nunodasneves@linux.microsoft.com> | 2025-02-21 11:56:35 -0800 |
|---|---|---|
| committer |   Wei Liu <wei.liu@kernel.org> | 2025-03-20 21:22:58 +0000 |
| commit | 461fbbd036b11d755b50e2ef7c165859a0f908d5 (patch) | |
| tree | caa25ffab490e20c17207d34de3c6543deae1564 /tools/perf/scripts/python/export-to-postgresql.py | |
| parent | hyperv: Change hv_root_partition into a function (diff) | |
| download | linux-rng-461fbbd036b11d755b50e2ef7c165859a0f908d5.tar.xz linux-rng-461fbbd036b11d755b50e2ef7c165859a0f908d5.zip | |
hyperv: Add CONFIG_MSHV_ROOT to gate root partition support
CONFIG_MSHV_ROOT allows kernels built to run as a normal Hyper-V guest
to exclude the root partition code, which is expected to grow
significantly over time.
This option is a tristate so future driver code can be built as a
(m)odule, allowing faster development iteration cycles.
If CONFIG_MSHV_ROOT is disabled, don't compile hv_proc.c, and stub
hv_root_partition() to return false unconditionally. This allows the
compiler to optimize away root partition code blocks since they will
be disabled at compile time.
In the case of booting as root partition *without* CONFIG_MSHV_ROOT
enabled, print a critical error (the kernel will likely crash).
Signed-off-by: Nuno Das Neves <nunodasneves@linux.microsoft.com>
Reviewed-by: Easwar Hariharan <eahariha@linux.microsoft.com>
Reviewed-by: Michael Kelley <mhklinux@outlook.com>
Link: https://lore.kernel.org/r/1740167795-13296-4-git-send-email-nunodasneves@linux.microsoft.com
Signed-off-by: Wei Liu <wei.liu@kernel.org>
Message-ID: <1740167795-13296-4-git-send-email-nunodasneves@linux.microsoft.com>
Diffstat (limited to 'tools/perf/scripts/python/export-to-postgresql.py')
0 files changed, 0 insertions, 0 deletions