Revert "x86/boot: Disable RSDP parsing temporarily"

TODO:

- ask dyoung and Dirk van der Merwe <[email protected]> to
test again.

This reverts commit 36f0c423552dacaca152324b8e9bda42a6d88865.

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

Signed-off-by: Borislav Petkov <[email protected]>
Cc: Baoquan He <[email protected]>
Cc: Chao Fan <[email protected]>
Cc: Dave Hansen <[email protected]>
Cc: "H. Peter Anvin" <[email protected]>
Cc: [email protected]
Cc: Ingo Molnar <[email protected]>
Cc: Juergen Gross <[email protected]>
Cc: [email protected]
Cc: Kees Cook <[email protected]>
Cc: "Kirill A. Shutemov" <[email protected]>
Cc: [email protected]
Cc: Thomas Gleixner <[email protected]>
Cc: Tom Lendacky <[email protected]>
Cc: x86-ml <[email protected]>

1 files changed, 1 insertions, 1 deletions

diff --git a/arch/x86/boot/compressed/misc.c b/arch/x86/boot/compressed/misc.c
index 5a237e8dbf8d..c0d6c560df69 100644
--- 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);