diff options
| author | John Hubbard <jhubbard@nvidia.com> | 2019-08-21 12:25:13 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-09-06 10:18:10 +0200 |
| commit | 24a5ed6757d857bcbecd413ef592fb86f1c15231 (patch) | |
| tree | 9dd16b41b434d4c462f58b08802eb4d22a1668ac /arch/x86/include/asm/bootparam_utils.h | |
| parent | 41664b97f46e2c951c05313f4a9e9bb1fecc1439 (diff) | |
x86/boot: Fix boot regression caused by bootparam sanitizing
commit 7846f58fba964af7cb8cf77d4d13c33254725211 upstream.
commit a90118c445cc ("x86/boot: Save fields explicitly, zero out everything
else") had two errors:
* It preserved boot_params.acpi_rsdp_addr, and
* It failed to preserve boot_params.hdr
Therefore, zero out acpi_rsdp_addr, and preserve hdr.
Fixes: a90118c445cc ("x86/boot: Save fields explicitly, zero out everything else")
Reported-by: Neil MacLeod <neil@nmacleod.com>
Suggested-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: John Hubbard <jhubbard@nvidia.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: Neil MacLeod <neil@nmacleod.com>
Cc: stable@vger.kernel.org
Link: https://lkml.kernel.org/r/20190821192513.20126-1-jhubbard@nvidia.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'arch/x86/include/asm/bootparam_utils.h')
| -rw-r--r-- | arch/x86/include/asm/bootparam_utils.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/x86/include/asm/bootparam_utils.h b/arch/x86/include/asm/bootparam_utils.h index 4d965cc429e7..0232b5a2a2d9 100644 --- a/arch/x86/include/asm/bootparam_utils.h +++ b/arch/x86/include/asm/bootparam_utils.h @@ -70,6 +70,7 @@ static void sanitize_boot_params(struct boot_params *boot_params) BOOT_PARAM_PRESERVE(eddbuf_entries), BOOT_PARAM_PRESERVE(edd_mbr_sig_buf_entries), BOOT_PARAM_PRESERVE(edd_mbr_sig_buffer), + BOOT_PARAM_PRESERVE(hdr), BOOT_PARAM_PRESERVE(eddbuf), }; |