[PATCH 15/27] acpi: Ignore acpi_rsdp kernel param when the kernel has been locked down
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From: jlee@suse.com (joeyli)
Date: 2017-10-20 06:45:58
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On Thu, Oct 19, 2017 at 03:52:27PM +0100, David Howells wrote:
From: Josh Boyer <redacted> This option allows userspace to pass the RSDP address to the kernel, which makes it possible for a user to modify the workings of hardware . Reject the option when the kernel is locked down. Signed-off-by: Josh Boyer <redacted> Signed-off-by: David Howells <dhowells@redhat.com>
I have reviewed this patch. Please feel free to add: Reviewed-by: "Lee, Chun-Yi" <jlee@suse.com> Thanks! Joey Lee
quoted hunk ↗ jump to hunk
cc: Dave Young <redacted> cc: linux-acpi at vger.kernel.org --- drivers/acpi/osl.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c index db78d353bab1..36c6527c1b0a 100644 --- a/drivers/acpi/osl.c +++ b/drivers/acpi/osl.c@@ -192,7 +192,7 @@ acpi_physical_address __init acpi_os_get_root_pointer(void) acpi_physical_address pa = 0; #ifdef CONFIG_KEXEC - if (acpi_rsdp) + if (acpi_rsdp && !kernel_is_locked_down("ACPI RSDP specification")) return acpi_rsdp; #endif --To unsubscribe from this list: send the line "unsubscribe linux-efi" in the body of a message to majordomo at vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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