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authorChao Fan <fanc.fnst@cn.fujitsu.com>2019-01-23 12:08:48 +0100
committerBorislav Petkov <bp@suse.de>2019-02-01 11:52:55 +0100
commit3a63f70bf4c3a17f5d9c9bf3bc3288a23bdfefce (patch)
treeaa7b862cbe8ba794b260801f5f80a0f5a9b552d8 /crypto/acompress.c
parentx86/boot: Search for RSDP in memory (diff)
downloadlinux-3a63f70bf4c3a17f5d9c9bf3bc3288a23bdfefce.tar.xz
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x86/boot: Early parse RSDP and save it in boot_params
The RSDP is needed by KASLR so parse it early and save it in boot_params.acpi_rsdp_addr, before KASLR setup runs. RSDP is needed by other kernel facilities so have the parsing code built-in instead of a long "depends on" line in Kconfig. [ bp: - Trim commit message and comments - Add CONFIG_ACPI dependency in the Makefile - Move ->acpi_rsdp_addr assignment with the rest of boot_params massaging in extract_kernel(). ] Signed-off-by: Chao Fan <fanc.fnst@cn.fujitsu.com> Signed-off-by: Borislav Petkov <bp@suse.de> Cc: bhe@redhat.com Cc: Cao jin <caoj.fnst@cn.fujitsu.com> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: indou.takao@jp.fujitsu.com Cc: Ingo Molnar <mingo@redhat.com> Cc: Juergen Gross <jgross@suse.com> Cc: kasong@redhat.com Cc: Kees Cook <keescook@chromium.org> Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com> Cc: Masahiro Yamada <yamada.masahiro@socionext.com> Cc: msys.mizuma@gmail.com Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Tom Lendacky <thomas.lendacky@amd.com> Cc: x86-ml <x86@kernel.org> Link: https://lkml.kernel.org/r/20190123110850.12433-6-fanc.fnst@cn.fujitsu.com
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