On 5/15/2017 1:09 PM, Borislav Petkov wrote:
On Tue, Apr 18, 2017 at 04:18:48PM -0500, Tom Lendacky wrote:Add a function that will determine if a supplied physical address matches the address of an EFI table. Signed-off-by: Tom Lendacky <thomas.lendacky@xxxxxxx> --- drivers/firmware/efi/efi.c | 33 +++++++++++++++++++++++++++++++++ include/linux/efi.h | 7 +++++++ 2 files changed, 40 insertions(+) diff --git a/drivers/firmware/efi/efi.c b/drivers/firmware/efi/efi.c index b372aad..8f606a3 100644 --- a/drivers/firmware/efi/efi.c +++ b/drivers/firmware/efi/efi.c @@ -55,6 +55,25 @@ struct efi __read_mostly efi = { }; EXPORT_SYMBOL(efi); +static unsigned long *efi_tables[] = { + &efi.mps, + &efi.acpi, + &efi.acpi20, + &efi.smbios, + &efi.smbios3, + &efi.sal_systab, + &efi.boot_info, + &efi.hcdp, + &efi.uga, + &efi.uv_systab, + &efi.fw_vendor, + &efi.runtime, + &efi.config_table, + &efi.esrt, + &efi.properties_table, + &efi.mem_attr_table, +}; + static bool disable_runtime; static int __init setup_noefi(char *arg) { @@ -854,6 +873,20 @@ int efi_status_to_err(efi_status_t status) return err; } +bool efi_table_address_match(unsigned long phys_addr)efi_is_table_address() reads easier/better in the code.
Will do. Thanks, Tom
