x86/sgx: Add check for SGX pages to ghes_do_memory_failure()

SGX EPC pages do not have a "struct page" associated with them so the pfn_valid() sanity check fails and results in a warning message to the console. Add an additional check to skip the warning if the address of the error is in an SGX EPC page. Signed-off-by: Tony Luck <[email protected]> Signed-off-by: Dave Hansen <[email protected]> Reviewed-by: Jarkko Sakkinen <[email protected]> Tested-by: Reinette Chatre <[email protected]> Link: https://lkml.kernel.org/r/[email protected]
niw · Nov 15, 2021 · 3ad6fd7 · 3ad6fd7
1 parent c6acb1e
commit 3ad6fd7
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/drivers/acpi/apei/ghes.c b/drivers/acpi/apei/ghes.c
@@ -449,7 +449,7 @@ static bool ghes_do_memory_failure(u64 physical_addr, int flags)
 		return false;
 
 	pfn = PHYS_PFN(physical_addr);
-	if (!pfn_valid(pfn)) {
+	if (!pfn_valid(pfn) && !arch_is_platform_page(physical_addr)) {
 		pr_warn_ratelimited(FW_WARN GHES_PFX
 		"Invalid address in generic error data: %#llx\n",
 		physical_addr);