EDAC/skx_common: Allow decoding of SGX addresses

There are no "struct page" associations with SGX pages, causing the check
pfn_to_online_page() to fail. This results in the inability to decode the
SGX addresses and warning messages like:

  Invalid address 0x34cc9a98840 in IA32_MC17_ADDR

Add an additional check to allow the decoding of the error address and to
skip the warning message, if the error address is an SGX address.

Fixes: 1e92af09fab1 ("EDAC/skx_common: Filter out the invalid address")
Signed-off-by: Qiuxu Zhuo <qiuxu.zhuo@intel.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
Link: https://lore.kernel.org/r/20240408120419.50234-1-qiuxu.zhuo@intel.com

diff --git a/drivers/edac/skx_common.c b/drivers/edac/skx_common.c
index 9c5b6f8bd8bd5902ceb5fdd0448fdb0778fd8940..27996b7924c82dc5f40ec733bf48da34843b2f17 100644 (file)
--- a/drivers/edac/skx_common.c
+++ b/drivers/edac/skx_common.c
@@ -648,7 +648,7 @@ int skx_mce_check_error(struct notifier_block *nb, unsigned long val,
        memset(&res, 0, sizeof(res));
        res.mce  = mce;
        res.addr = mce->addr & MCI_ADDR_PHYSADDR;
-       if (!pfn_to_online_page(res.addr >> PAGE_SHIFT)) {
+       if (!pfn_to_online_page(res.addr >> PAGE_SHIFT) && !arch_is_platform_page(res.addr)) {
                pr_err("Invalid address 0x%llx in IA32_MC%d_ADDR\n", mce->addr, mce->bank);
                return NOTIFY_DONE;
        }