diff options
| author |   Tony Luck <tony.luck@intel.com> | 2021-10-26 15:00:49 -0700 |
|---|---|---|
| committer |   Dave Hansen <dave.hansen@linux.intel.com> | 2021-11-15 11:13:16 -0800 |
| commit | c6acb1e7bf4656b9434335c72b8245cc84575fde (patch) | |
| tree | b97d6134e6af7d05b966523b83f3e331e6123295 /drivers/acpi/apei | |
| parent | x86/sgx: Hook arch_memory_failure() into mainline code (diff) | |
| download | linux-dev-c6acb1e7bf4656b9434335c72b8245cc84575fde.tar.xz linux-dev-c6acb1e7bf4656b9434335c72b8245cc84575fde.zip | |
x86/sgx: Add hook to error injection address validation
SGX reserved memory does not appear in the standard address maps.
Add hook to call into the SGX code to check if an address is located
in SGX memory.
There are other challenges in injecting errors into SGX. Update the
documentation with a sequence of operations to inject.
Signed-off-by: Tony Luck <tony.luck@intel.com>
Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com>
Reviewed-by: Jarkko Sakkinen <jarkko@kernel.org>
Tested-by: Reinette Chatre <reinette.chatre@intel.com>
Link: https://lkml.kernel.org/r/20211026220050.697075-7-tony.luck@intel.com
Diffstat (limited to 'drivers/acpi/apei')
| -rw-r--r-- | drivers/acpi/apei/einj.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/acpi/apei/einj.c b/drivers/acpi/apei/einj.c index edb2622fd35f..95cc2a9f3e05 100644 --- a/drivers/acpi/apei/einj.c +++ b/drivers/acpi/apei/einj.c @@ -545,7 +545,8 @@ static int einj_error_inject(u32 type, u32 flags, u64 param1, u64 param2, ((region_intersects(base_addr, size, IORESOURCE_SYSTEM_RAM, IORES_DESC_NONE) != REGION_INTERSECTS) && (region_intersects(base_addr, size, IORESOURCE_MEM, IORES_DESC_PERSISTENT_MEMORY) - != REGION_INTERSECTS))) + != REGION_INTERSECTS) && + !arch_is_platform_page(base_addr))) return -EINVAL; inject: |