[XS] Change in coreboot[master]: UNTESTED arch/x86/tables.c: Carve out ACPI as separate bootmem range

[Arthur Heymans (Code Review)]

Arthur Heymans has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/76133?usp=email )

Change subject: UNTESTED arch/x86/tables.c: Carve out ACPI as separate bootmem range
......................................................................

UNTESTED arch/x86/tables.c: Carve out ACPI as separate bootmem range

ACPI memory needs to be read only once by the OS and can in principle be
reclaimed afterwards.

Signed-off-by: Arthur Heymans 
Change-Id: I1bd0ef2b1a36f101ecf89237eddcf07a79d0a9ec
---
M src/arch/x86/tables.c
1 file changed, 5 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/33/76133/1

diff --git a/src/arch/x86/tables.c b/src/arch/x86/tables.c
index 1cff614..42c7b8a 100644
--- a/src/arch/x86/tables.c
+++ b/src/arch/x86/tables.c
@@ -222,4 +222,9 @@
    const uintptr_t base = 0;

bootmem_add_range(base, forwarding_table - base, BM_MEM_TABLE);
+
+	if (CONFIG(HAVE_ACPI_TABLES)) {
+		const struct cbmem_entry *acpi = cbmem_entry_find(CBMEM_ID_ACPI);
+		bootmem_add_range((uintptr_t)cbmem_entry_start(acpi), cbmem_entry_size(acpi), BM_MEM_ACPI);
+	}
 }