diff mbox series

[v11,7/7] x86/sgx: Add check for SGX pages to ghes_do_memory_failure()

Message ID 20211026220050.697075-8-tony.luck@intel.com (mailing list archive)
State Not Applicable, archived
Headers show
Series [v11,1/7] x86/sgx: Add new sgx_epc_page flag bit to mark free pages | expand

Commit Message

Tony Luck Oct. 26, 2021, 10 p.m. UTC 
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.

Reviewed-by: Jarkko Sakkinen <jarkko@kernel.org>
Tested-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
---
 drivers/acpi/apei/ghes.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Comments

Rafael J. Wysocki Oct. 29, 2021, 6:39 p.m. UTC | #1 
On Wed, Oct 27, 2021 at 12:01 AM Tony Luck <tony.luck@intel.com> wrote:
>
> 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.
>
> Reviewed-by: Jarkko Sakkinen <jarkko@kernel.org>
> Tested-by: Reinette Chatre <reinette.chatre@intel.com>
> Signed-off-by: Tony Luck <tony.luck@intel.com>

Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

> ---
>  drivers/acpi/apei/ghes.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/acpi/apei/ghes.c b/drivers/acpi/apei/ghes.c
> index 0c8330ed1ffd..0c5c9acc6254 100644
> --- 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);
> --
> 2.31.1
>
diff mbox series

Patch

diff --git a/drivers/acpi/apei/ghes.c b/drivers/acpi/apei/ghes.c
index 0c8330ed1ffd..0c5c9acc6254 100644
--- 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);