With the SEV-ES series, the kernel command line is no longer guaranteed to be mapped on entry into the main kernel. This fixes that, and a stackprotector issue that cropped up on head64.c.
The first three patches are preparatory cleanups. Patch 4 fixes the mapping issue and patch 5 disables stack protector for head code. Arvind Sankar (5): x86/boot: Initialize boot_params in startup code x86/boot: Move get_cmd_line_ptr() and COMMAND_LINE_SIZE into misc.h x86/boot/64: Change add_identity_map() to take size for ease of use x86/boot/64: Explicitly map boot_params and command line x86/head/64: Disable stack protection for head$(BITS).o arch/x86/boot/compressed/cmdline.c | 8 ------ arch/x86/boot/compressed/head_32.S | 11 ++++---- arch/x86/boot/compressed/head_64.S | 34 ++++++++----------------- arch/x86/boot/compressed/ident_map_64.c | 18 ++++++------- arch/x86/boot/compressed/kaslr.c | 6 ----- arch/x86/boot/compressed/misc.c | 10 +------- arch/x86/boot/compressed/misc.h | 13 ++++++++++ arch/x86/boot/compressed/pgtable_64.c | 5 +--- arch/x86/kernel/Makefile | 2 ++ 9 files changed, 43 insertions(+), 64 deletions(-) -- 2.26.2
