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| author | Liu Wei <liuwei09@cestc.cn> | 2024-06-25 11:05:04 +0800 |
|---|---|---|
| committer | Catalin Marinas <catalin.marinas@arm.com> | 2024-07-04 16:33:13 +0100 |
| commit | f5a4af3c752704272e9094466e66e21d4ee4e414 (patch) | |
| tree | cdb1063521df7e587b89d315902147d863c9f5a6 /arch/arm64/kernel/alternative.c | |
| parent | bfe3f0df3e3c0afdbe147d2479fe9aee4d0683e9 (diff) | |
| download | lwn-f5a4af3c752704272e9094466e66e21d4ee4e414.tar.gz lwn-f5a4af3c752704272e9094466e66e21d4ee4e414.zip | |
ACPI: Add acpi=nospcr to disable ACPI SPCR as default console on ARM64
For varying privacy and security reasons, sometimes we would like to
completely silence the _serial_ console, and only enable it when needed.
But there are many existing systems that depend on this _serial_ console,
so add acpi=nospcr to disable console in ACPI SPCR table as default
_serial_ console.
Signed-off-by: Liu Wei <liuwei09@cestc.cn>
Suggested-by: Prarit Bhargava <prarit@redhat.com>
Suggested-by: Will Deacon <will@kernel.org>
Suggested-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Hanjun Guo <guohanjun@huawei.com>
Reviewed-by: Prarit Bhargava <prarit@redhat.com>
Link: https://lore.kernel.org/r/20240625030504.58025-1-liuwei09@cestc.cn
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Diffstat (limited to 'arch/arm64/kernel/alternative.c')
0 files changed, 0 insertions, 0 deletions