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
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