Revert "x86/boot: Disable RSDP parsing temporarily"

TODO:

- ask dyoung and Dirk van der Merwe <dirk.vandermerwe@netronome.com> to
test again.

This reverts commit 36f0c423552dacaca152324b8e9bda42a6d88865.

Now that the required fixes are in place, reenable early RSDP parsing.

Signed-off-by: Borislav Petkov <bp@suse.de>
Cc: Baoquan He <bhe@redhat.com>
Cc: Chao Fan <fanc.fnst@cn.fujitsu.com>
Cc: Dave Hansen <dave.hansen@linux.intel.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: msys.mizuma@gmail.com
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Tom Lendacky <thomas.lendacky@amd.com>
Cc: x86-ml <x86@kernel.org>

diff --git a/arch/x86/boot/compressed/misc.c b/arch/x86/boot/compressed/misc.c
index 5a237e8dbf8d563504a6cfcb4a67a2b7350bed0a..c0d6c560df69e0e63941a34539660770304ff612 100644 (file)
--- a/arch/x86/boot/compressed/misc.c
+++ b/arch/x86/boot/compressed/misc.c
@@ -352,7 +352,7 @@ asmlinkage __visible void *extract_kernel(void *rmode, memptr heap,
        boot_params->hdr.loadflags &= ~KASLR_FLAG;
 
        /* Save RSDP address for later use. */
-       /* boot_params->acpi_rsdp_addr = get_rsdp_addr(); */
+       boot_params->acpi_rsdp_addr = get_rsdp_addr();
 
        sanitize_boot_params(boot_params);