[PATCH 5.15 188/779] ACPI: APEI: Fix _EINJ vs EFI_MEMORY_SP
From: Greg Kroah-Hartman
Date: Mon Aug 15 2022 - 14:37:48 EST
From: Dan Williams <dan.j.williams@xxxxxxxxx>
[ Upstream commit b13a3e5fd40b7d1b394c5ecbb5eb301a4c38e7b2 ]
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@xxxxxxxxx>
Reported-by: Omar Avelar <omar.avelar@xxxxxxxxx>
Signed-off-by: Dan Williams <dan.j.williams@xxxxxxxxx>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@xxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/acpi/apei/einj.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/acpi/apei/einj.c b/drivers/acpi/apei/einj.c
index 2882450c443e..2e0ab898cce3 100644
--- a/drivers/acpi/apei/einj.c
+++ b/drivers/acpi/apei/einj.c
@@ -544,6 +544,8 @@ static int einj_error_inject(u32 type, u32 flags, u64 param1, u64 param2,
((region_intersects(base_addr, size, IORESOURCE_SYSTEM_RAM, IORES_DESC_NONE)
!= 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)))
return -EINVAL;
--
2.35.1