ACPI: APEI: Fix _EINJ vs EFI_MEMORY_SP

When a platform marks a memory range as "special purpose" it is not
onlined as System RAM by default. However, it is still suitable for
error injection. Add IORES_DESC_SOFT_RESERVED to einj_error_inject() as
a permissible memory type in the sanity checking of the arguments to
_EINJ.

Fixes: 262b45ae3ab4 ("x86/efi: EFI soft reservation to E820 enumeration")
Reviewed-by: Tony Luck <tony.luck@intel.com>
Reported-by: Omar Avelar <omar.avelar@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

diff --git a/drivers/acpi/apei/einj.c b/drivers/acpi/apei/einj.c
index d4326ec..6b58337 100644 (file)
--- a/drivers/acpi/apei/einj.c
+++ b/drivers/acpi/apei/einj.c
@@ -546,6 +546,8 @@ static int einj_error_inject(u32 type, u32 flags, u64 param1, u64 param2,
                                != REGION_INTERSECTS) &&
             (region_intersects(base_addr, size, IORESOURCE_MEM, IORES_DESC_PERSISTENT_MEMORY)
                                != REGION_INTERSECTS) &&
+            (region_intersects(base_addr, size, IORESOURCE_MEM, IORES_DESC_SOFT_RESERVED)
+                               != REGION_INTERSECTS) &&
             !arch_is_platform_page(base_addr)))
                return -EINVAL;