From: Dan Williams dan.j.williams@intel.com
[ 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@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 Signed-off-by: Sasha Levin sashal@kernel.org --- 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 95cc2a9f3e05..49b5e317e916 100644 --- 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;