In the case of memory error injection, einj_error_inject() checks
if a target address is regular RAM. Change this check to allow
injecting a memory error to both RAM and NVDIMM so that memory
errors can be tested on NVDIMM as well.
Signed-off-by: Toshi Kani <toshi.kani@xxxxxxx>
---
drivers/acpi/apei/einj.c | 12 ++++++++----
1 file changed, 8 insertions(+), 4 deletions(-)
diff --git a/drivers/acpi/apei/einj.c b/drivers/acpi/apei/einj.c
index 0431883..696f45a 100644
--- a/drivers/acpi/apei/einj.c
+++ b/drivers/acpi/apei/einj.c
@@ -519,7 +519,7 @@ static int einj_error_inject(u32 type, u32 flags, u64 param1, u64 param2,
u64 param3, u64 param4)
{
int rc;
- unsigned long pfn;
+ u64 base_addr, size;
/* If user manually set "flags", make sure it is legal */
if (flags && (flags &
@@ -545,10 +545,14 @@ static int einj_error_inject(u32 type, u32 flags, u64 param1, u64 param2,
/*
* Disallow crazy address masks that give BIOS leeway to pick
* injection address almost anywhere. Insist on page or
- * better granularity and that target address is normal RAM.
+ * better granularity and that target address is normal RAM or
+ * NVDIMM.
*/
- pfn = PFN_DOWN(param1 & param2);
- if (!page_is_ram(pfn) || ((param2 & PAGE_MASK) != PAGE_MASK))
+ base_addr = param1 & param2;
+ size = (~param2) + 1;
+ if (((!page_is_ram(PFN_DOWN(base_addr))) &&
+ (region_intersects_pmem(base_addr, size) != REGION_INTERSECTS)) ||
+ ((param2 & PAGE_MASK) != PAGE_MASK))
return -EINVAL;
inject:
--
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