Commit 3ad6fd77 authored by Tony Luck's avatar Tony Luck Committed by Dave Hansen
Browse files

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: default avatarTony Luck <tony.luck@intel.com>
Signed-off-by: default avatarDave Hansen <dave.hansen@linux.intel.com>
Reviewed-by: default avatarJarkko Sakkinen <jarkko@kernel.org>
Tested-by: default avatarReinette Chatre <reinette.chatre@intel.com>
Link: https://lkml.kernel.org/r/20211026220050.697075-8-tony.luck@intel.com
parent c6acb1e7

drivers/acpi/apei/ghes.c

+1 −1
Original line number Diff line number Diff line
@@ -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);