[PATCH v2 2/2] uefi: fix fwts_uefi_rt_support_status_get()

Heinrich Schuchardt xypron.glpk at gmx.de
Mon Dec 28 18:57:28 UTC 2020


The UEFI 2.8 Errata A specification has clarified that
RuntimeServicesSupported is not a UEFI variable but a value in the
EFI_RT_PROPERTIES_TABLE configuration table. Since Linux 5.11 the value can
be retrieved via an IOCTL call.

Replace the code trying to read the non-existent RuntimeServicesSupported
variable by the IOCTL call.

Signed-off-by: Heinrich Schuchardt <xypron.glpk at gmx.de>
---
 src/lib/include/fwts_uefi.h              |  4 +-
 src/lib/src/fwts_uefi.c                  | 49 +++++-----------
 src/uefi/uefirtmisc/uefirtmisc.c         | 27 ++++-----
 src/uefi/uefirttime/uefirttime.c         | 72 ++++++++++--------------
 src/uefi/uefirtvariable/uefirtvariable.c | 72 ++++++++++--------------
 5 files changed, 87 insertions(+), 137 deletions(-)

diff --git a/src/lib/include/fwts_uefi.h b/src/lib/include/fwts_uefi.h
index 36cd5824..24e2962e 100644
--- a/src/lib/include/fwts_uefi.h
+++ b/src/lib/include/fwts_uefi.h
@@ -137,6 +137,8 @@ enum {
 #define EFI_RT_SUPPORTED_QUERY_CAPSULE_CAPABILITIES	0x1000
 #define EFI_RT_SUPPORTED_QUERY_VARIABLE_INFO		0x2000

+#define EFI_RT_SUPPORTED_ALL				0x3fff
+
 #define EFI_CERT_SHA256_GUID \
 { 0xc1c41626, 0x504c, 0x4092, { 0xac, 0xa9, 0x41, 0xf9, 0x36, 0x93, 0x43, 0x28 }}

@@ -680,7 +682,7 @@ char *fwts_uefi_attribute_info(uint32_t attr);

 bool fwts_uefi_efivars_iface_exist(void);

-void fwts_uefi_rt_support_status_get(int fd, bool *getvar_supported, uint32_t *var_rtsupported);
+void fwts_uefi_rt_support_status_get(int fd, bool *have_rtsupported, uint32_t *var_rtsupported);

 PRAGMA_POP

diff --git a/src/lib/src/fwts_uefi.c b/src/lib/src/fwts_uefi.c
index 0fb6b799..131e187b 100644
--- a/src/lib/src/fwts_uefi.c
+++ b/src/lib/src/fwts_uefi.c
@@ -541,45 +541,26 @@ bool fwts_uefi_efivars_iface_exist(void)

 /*
  *  fwts_uefi_rt_support_status_get()
- *	get the status of runtime service support and the value of
- *	the RuntimeServicesSupported variable
+ *	get the status of runtime service support.
+ *
+ *	Since UEFI 2.8 Errata A the EFI_RT_PROPERTIES_TABLE configuration table
+ *	can be used to indicate which UEFI runtime services are not implemented
+ *	via the bitmask RuntimeServicesSupported. If the table is not present,
+ *	all runtime services are to be considered available. Since Linux 5.11
+ *	this bitmask can be read via an IOCTL call. Before Linux 5.11 the value
+ *	cannot be determined.
  */
-void fwts_uefi_rt_support_status_get(int fd, bool *getvar_supported, uint32_t *var_rtsupported)
+void fwts_uefi_rt_support_status_get(int fd, bool *have_rtsupported, uint32_t *var_rtsupported)
 {
 	long ioret;
-	struct efi_getvariable getvariable;
-	uint64_t status = ~0ULL;
-	uint8_t data[512];
-	uint64_t getdatasize = sizeof(data);
-	*var_rtsupported = 0xFFFF;
-
-	uint32_t attributes = FWTS_UEFI_VAR_NON_VOLATILE |
-				FWTS_UEFI_VAR_BOOTSERVICE_ACCESS |
-				FWTS_UEFI_VAR_RUNTIME_ACCESS;
-	static uint16_t varname[] = {'R', 'u', 'n', 't', 'i', 'm', 'e', 'S', 'e',
-				'r', 'v', 'i', 'c', 'e', 's', 'S', 'u', 'p',
-				'p', 'o', 'r', 't', 'e', 'd', '\0'};
-	EFI_GUID global_var_guid = EFI_GLOBAL_VARIABLE;
-	getvariable.VariableName = varname;
-	getvariable.VendorGuid = &global_var_guid;
-	getvariable.Attributes = &attributes;
-	getvariable.DataSize = &getdatasize;
-	getvariable.Data = data;
-	getvariable.status = &status;
-
-	ioret = ioctl(fd, EFI_RUNTIME_GET_VARIABLE, &getvariable);
+
+	ioret = ioctl(fd, EFI_RUNTIME_GET_SUPPORTED_MASK, var_rtsupported);
 	if (ioret == -1) {
-		if (status == EFI_NOT_FOUND) {
-			*getvar_supported = true;
-		} else {
-			*getvar_supported = false;
-		}
-		return;
+		*have_rtsupported = false;
+		*var_rtsupported = EFI_RT_SUPPORTED_ALL;
+	} else {
+		*have_rtsupported = true;
 	}

-	*getvar_supported = true;
-	*var_rtsupported = data[0] | data[1] << 8;
-
 	return;
-
 }
diff --git a/src/uefi/uefirtmisc/uefirtmisc.c b/src/uefi/uefirtmisc/uefirtmisc.c
index a2dc6967..c0d3835a 100644
--- a/src/uefi/uefirtmisc/uefirtmisc.c
+++ b/src/uefi/uefirtmisc/uefirtmisc.c
@@ -245,20 +245,18 @@ static int uefirtmisc_test4(fwts_framework *fw)
 {
 	long ioret;
 	uint64_t status;
-	bool getvar_supported;
+	bool have_rtsupported;
 	uint32_t var_runtimeservicessupported;

 	struct efi_getnexthighmonotoniccount getnexthighmonotoniccount;
 	uint32_t highcount;

-	fwts_uefi_rt_support_status_get(fd, &getvar_supported,
+	fwts_uefi_rt_support_status_get(fd, &have_rtsupported,
 			&var_runtimeservicessupported);
-	if (!getvar_supported || (var_runtimeservicessupported == 0xFFFF)) {
+	if (!have_rtsupported) {
 		fwts_skipped(fw, "Cannot get the RuntimeServicesSupported "
-				"variable, maybe the runtime service "
-				"GetVariable is not supported or "
-				"RuntimeServicesSupported not provided by "
-				"firmware.");
+				 "mask from the kernel. This IOCTL was "
+				 "introduced in Linux v5.11.");
 		return FWTS_SKIP;
 	}

@@ -268,13 +266,12 @@ static int uefirtmisc_test4(fwts_framework *fw)
 	ioret = ioctl(fd, EFI_RUNTIME_GET_NEXTHIGHMONOTONICCOUNT, &getnexthighmonotoniccount);
 	if (ioret == -1) {
 		if (status == EFI_UNSUPPORTED) {
-			if ((var_runtimeservicessupported & EFI_RT_SUPPORTED_GET_NEXT_HIGH_MONOTONIC_COUNT)
-				|| (var_runtimeservicessupported == 0)) {
+			if (var_runtimeservicessupported & EFI_RT_SUPPORTED_GET_NEXT_HIGH_MONOTONIC_COUNT) {
 				fwts_failed(fw, LOG_LEVEL_HIGH,
 					"UEFIRuntimeGetNextHighMonotonicCount",
 					"Get the GetNextHighMonotonicCount runtime "
 					"service supported via RuntimeServicesSupported "
-					"variable. But actually is not supported by "
+					"mask. But actually is not supported by "
 					"firmware.");
 			} else {
 				fwts_passed(fw, "UEFI GetNextHighMonotonicCount runtime "
@@ -285,8 +282,7 @@ static int uefirtmisc_test4(fwts_framework *fw)
 				fwts_skipped(fw, "Unknown error occurred, skip test.");
 				return FWTS_SKIP;
 			}
-			if ((var_runtimeservicessupported & EFI_RT_SUPPORTED_GET_NEXT_HIGH_MONOTONIC_COUNT)
-				|| (var_runtimeservicessupported == 0)) {
+			if (var_runtimeservicessupported & EFI_RT_SUPPORTED_GET_NEXT_HIGH_MONOTONIC_COUNT) {
 				fwts_passed(fw, "UEFI GetNextHighMonotonicCount runtime "
 					"service supported status test passed.");
 			} else {
@@ -294,7 +290,7 @@ static int uefirtmisc_test4(fwts_framework *fw)
 					"UEFIRuntimeGetNextHighMonotonicCount",
 					"Get the GetNextHighMonotonicCount runtime "
 					"service unsupported via RuntimeServicesSupported "
-					"variable. But actually is supported by firmware.");
+					"mask. But actually is supported by firmware.");
 			}
 		}
 	} else {
@@ -302,8 +298,7 @@ static int uefirtmisc_test4(fwts_framework *fw)
 			fwts_skipped(fw, "Unknown error occurred, skip test.");
 			return FWTS_SKIP;
 		}
-		if ((var_runtimeservicessupported & EFI_RT_SUPPORTED_GET_NEXT_HIGH_MONOTONIC_COUNT)
-			|| (var_runtimeservicessupported == 0)) {
+		if (var_runtimeservicessupported & EFI_RT_SUPPORTED_GET_NEXT_HIGH_MONOTONIC_COUNT) {
 			fwts_passed(fw, "UEFI GetNextHighMonotonicCount runtime "
 				"service supported status test passed.");
 		} else {
@@ -311,7 +306,7 @@ static int uefirtmisc_test4(fwts_framework *fw)
 				"UEFIRuntimeGetNextHighMonotonicCount",
 				"Get the GetNextHighMonotonicCount runtime "
 				"service unsupported via RuntimeServicesSupported "
-				"variable. But actually is supported by firmware.");
+				"mask. But actually is supported by firmware.");
 		}
 	}

diff --git a/src/uefi/uefirttime/uefirttime.c b/src/uefi/uefirttime/uefirttime.c
index e0aa7071..3bbac718 100644
--- a/src/uefi/uefirttime/uefirttime.c
+++ b/src/uefi/uefirttime/uefirttime.c
@@ -1142,7 +1142,7 @@ static int uefirttime_test37(fwts_framework *fw)
 static int uefirttime_test38(fwts_framework *fw)
 {
 	long ioret;
-	bool getvar_supported;
+	bool have_rtsupported;
 	uint32_t var_runtimeservicessupported;

 	struct efi_settime settime;
@@ -1155,15 +1155,13 @@ static int uefirttime_test38(fwts_framework *fw)
 	EFI_TIME efi_time;
 	EFI_TIME_CAPABILITIES efi_time_cap;

-	fwts_uefi_rt_support_status_get(fd, &getvar_supported,
+	fwts_uefi_rt_support_status_get(fd, &have_rtsupported,
 			&var_runtimeservicessupported);

-	if (!getvar_supported || (var_runtimeservicessupported == 0xFFFF)) {
+	if (!have_rtsupported) {
 		fwts_skipped(fw, "Cannot get the RuntimeServicesSupported "
-				"variable, maybe the runtime service "
-				"GetVariable is not supported or "
-				"RuntimeServicesSupported not provided by "
-				"firmware.");
+				 "mask from the kernel. This IOCTL was "
+				 "introduced in Linux v5.11.");
 		return FWTS_SKIP;
 	}

@@ -1173,11 +1171,10 @@ static int uefirttime_test38(fwts_framework *fw)
 	ioret = ioctl(fd, EFI_RUNTIME_GET_TIME, &gettime);
 	if (ioret == -1) {
 		if (status == EFI_UNSUPPORTED) {
-			if ((var_runtimeservicessupported & EFI_RT_SUPPORTED_GET_TIME)
-				|| (var_runtimeservicessupported == 0)) {
+			if (var_runtimeservicessupported & EFI_RT_SUPPORTED_GET_TIME) {
 				fwts_failed(fw, LOG_LEVEL_HIGH, "UEFIRuntimeGetTime",
 					"Get the GetTime runtime service supported "
-					"via RuntimeServicesSupported variable. "
+					"via RuntimeServicesSupported mask. "
 					"But actually is not supported by firmware.");
 			} else {
 				fwts_passed(fw, "UEFI GetTime runtime service "
@@ -1188,14 +1185,13 @@ static int uefirttime_test38(fwts_framework *fw)
 				fwts_skipped(fw, "Unknown error occurred, skip test.");
 				return FWTS_SKIP;
 			}
-			if ((var_runtimeservicessupported & EFI_RT_SUPPORTED_GET_TIME)
-				|| (var_runtimeservicessupported == 0)) {
+			if (var_runtimeservicessupported & EFI_RT_SUPPORTED_GET_TIME) {
 				fwts_passed(fw, "UEFI GetTime runtime service "
 					"supported status test passed.");
 			} else {
 				fwts_failed(fw, LOG_LEVEL_HIGH, "UEFIRuntimeGetTime",
 					"Get the GetTime runtime service unsupported "
-					"via RuntimeServicesSupported variable. "
+					"via RuntimeServicesSupported mask. "
 					"But actually is supported by firmware.");
 			}
 		}
@@ -1204,14 +1200,13 @@ static int uefirttime_test38(fwts_framework *fw)
 			fwts_skipped(fw, "Unknown error occurred, skip test.");
 			return FWTS_SKIP;
 		}
-		if ((var_runtimeservicessupported & EFI_RT_SUPPORTED_GET_TIME)
-			|| (var_runtimeservicessupported == 0)) {
+		if (var_runtimeservicessupported & EFI_RT_SUPPORTED_GET_TIME) {
 			fwts_passed(fw, "UEFI GetTime runtime service "
 				"supported status test passed.");
 		} else {
 			fwts_failed(fw, LOG_LEVEL_HIGH, "UEFIRuntimeGetTime",
 				"Get the GetTime runtime service unsupported "
-				"via RuntimeServicesSupported variable. "
+				"via RuntimeServicesSupported mask. "
 				"But actually is supported by firmware.");
 		}
 	}
@@ -1223,11 +1218,10 @@ static int uefirttime_test38(fwts_framework *fw)
 	ioret = ioctl(fd, EFI_RUNTIME_SET_TIME, &settime);
 	if (ioret == -1) {
 		if (status == EFI_UNSUPPORTED) {
-			if ((var_runtimeservicessupported & EFI_RT_SUPPORTED_SET_TIME)
-				|| (var_runtimeservicessupported == 0)) {
+			if (var_runtimeservicessupported & EFI_RT_SUPPORTED_SET_TIME) {
 				fwts_failed(fw, LOG_LEVEL_HIGH, "UEFIRuntimeSetTime",
 					"Get the SetTime runtime service supported "
-					"via RuntimeServicesSupported variable. "
+					"via RuntimeServicesSupported mask. "
 					"But actually is not supported by firmware.");
 			} else {
 				fwts_passed(fw, "UEFI SetTime runtime service "
@@ -1238,14 +1232,13 @@ static int uefirttime_test38(fwts_framework *fw)
 				fwts_skipped(fw, "Unknown error occurred, skip test.");
 				return FWTS_SKIP;
 			}
-			if ((var_runtimeservicessupported & EFI_RT_SUPPORTED_SET_TIME)
-				|| (var_runtimeservicessupported == 0)) {
+			if (var_runtimeservicessupported & EFI_RT_SUPPORTED_SET_TIME) {
 				fwts_passed(fw, "UEFI SetTime runtime service "
 					"supported status test passed.");
 			} else {
 				fwts_failed(fw, LOG_LEVEL_HIGH, "UEFIRuntimeSetTime",
 					"Get the SetTime runtime service unsupported "
-					"via RuntimeServicesSupported variable. "
+					"via RuntimeServicesSupported mask. "
 					"But actually is supported by firmware.");
 			}
 		}
@@ -1254,14 +1247,13 @@ static int uefirttime_test38(fwts_framework *fw)
 			fwts_skipped(fw, "Unknown error occurred, skip test.");
 			return FWTS_SKIP;
 		}
-		if ((var_runtimeservicessupported & EFI_RT_SUPPORTED_SET_TIME)
-			|| (var_runtimeservicessupported == 0)) {
+		if (var_runtimeservicessupported & EFI_RT_SUPPORTED_SET_TIME) {
 			fwts_passed(fw, "UEFI SetTime runtime service "
 				"supported status test passed.");
 		} else {
 			fwts_failed(fw, LOG_LEVEL_HIGH, "UEFIRuntimeSetTime",
 				"Get the SetTime runtime service unsupported "
-				"via RuntimeServicesSupported variable. "
+				"via RuntimeServicesSupported mask. "
 				"But actually is supported by firmware.");
 		}
 	}
@@ -1274,11 +1266,10 @@ static int uefirttime_test38(fwts_framework *fw)
 	ioret = ioctl(fd, EFI_RUNTIME_SET_WAKETIME, &setwakeuptime);
 	if (ioret == -1) {
 		if (status == EFI_UNSUPPORTED) {
-			if ((var_runtimeservicessupported & EFI_RT_SUPPORTED_SET_WAKEUP_TIME)
-				|| (var_runtimeservicessupported == 0)) {
+			if (var_runtimeservicessupported & EFI_RT_SUPPORTED_SET_WAKEUP_TIME) {
 				fwts_failed(fw, LOG_LEVEL_HIGH, "UEFIRuntimeSetWakeupTime",
 					"Get the SetWakeupTime runtime service supported "
-					"via RuntimeServicesSupported variable. "
+					"via RuntimeServicesSupported mask. "
 					"But actually is not supported by firmware");

 			} else {
@@ -1290,14 +1281,13 @@ static int uefirttime_test38(fwts_framework *fw)
 				fwts_skipped(fw, "Unknown error occurred, skip test.");
 				return FWTS_SKIP;
 			}
-			if ((var_runtimeservicessupported & EFI_RT_SUPPORTED_SET_WAKEUP_TIME)
-				|| (var_runtimeservicessupported == 0)) {
+			if (var_runtimeservicessupported & EFI_RT_SUPPORTED_SET_WAKEUP_TIME) {
 				fwts_passed(fw, "UEFI SetWakeupTime runtime service "
 					"supported status test passed.");
 			} else {
 				fwts_failed(fw, LOG_LEVEL_HIGH, "UEFIRuntimeSetWakeupTime",
 					"Get the SetWakeupTime runtime service unsupported "
-					"via RuntimeServicesSupported variable. "
+					"via RuntimeServicesSupported mask. "
 					"But actually is supported by firmware.");
 			}
 		}
@@ -1306,14 +1296,13 @@ static int uefirttime_test38(fwts_framework *fw)
 			fwts_skipped(fw, "Unknown error occurred, skip test.");
 			return FWTS_SKIP;
 		}
-		if ((var_runtimeservicessupported & EFI_RT_SUPPORTED_SET_WAKEUP_TIME)
-			|| (var_runtimeservicessupported == 0)) {
+		if (var_runtimeservicessupported & EFI_RT_SUPPORTED_SET_WAKEUP_TIME) {
 			fwts_passed(fw, "UEFI SetWakeupTime runtime service "
 				"supported status test passed.");
 		} else {
 			fwts_failed(fw, LOG_LEVEL_HIGH, "UEFIRuntimeSetWakeupTime",
 				"Get the SetWakeupTime runtime service unsupported "
-				"via RuntimeServicesSupported variable. "
+				"via RuntimeServicesSupported mask. "
 				"But actually is supported by firmware.");
 		}
 	}
@@ -1326,11 +1315,10 @@ static int uefirttime_test38(fwts_framework *fw)
 	ioret = ioctl(fd, EFI_RUNTIME_GET_WAKETIME, &getwakeuptime);
 	if (ioret == -1) {
 		if (status == EFI_UNSUPPORTED) {
-			if ((var_runtimeservicessupported & EFI_RT_SUPPORTED_GET_WAKEUP_TIME)
-				|| (var_runtimeservicessupported == 0)) {
+			if (var_runtimeservicessupported & EFI_RT_SUPPORTED_GET_WAKEUP_TIME) {
 				fwts_failed(fw, LOG_LEVEL_HIGH, "UEFIRuntimeGetWakeupTime",
 					"Get the GetWakeupTime runtime service supported "
-					"via RuntimeServicesSupported variable. "
+					"via RuntimeServicesSupported mask. "
 					"But actually is not supported by firmware");
 			} else {
 				fwts_passed(fw, "UEFI GetWakeupTime runtime service "
@@ -1341,14 +1329,13 @@ static int uefirttime_test38(fwts_framework *fw)
 				fwts_skipped(fw, "Unknown error occurred, skip test.");
 				return FWTS_SKIP;
 			}
-			if ((var_runtimeservicessupported & EFI_RT_SUPPORTED_GET_WAKEUP_TIME)
-				|| (var_runtimeservicessupported == 0)) {
+			if (var_runtimeservicessupported & EFI_RT_SUPPORTED_GET_WAKEUP_TIME) {
 				fwts_passed(fw, "UEFI GetWakeupTime runtime service "
 					"supported status test passed.");
 			} else {
 				fwts_failed(fw, LOG_LEVEL_HIGH, "UEFIRuntimeGetWakeupTime",
 					"Get the GetWakeupTime runtime service unsupported "
-					"via RuntimeServicesSupported variable. "
+					"via RuntimeServicesSupported mask. "
 					"But actually is supported by firmware");
 			}
 		}
@@ -1357,14 +1344,13 @@ static int uefirttime_test38(fwts_framework *fw)
 			fwts_skipped(fw, "Unknow error occurred, skip test.");
 			return FWTS_SKIP;
 		}
-		if ((var_runtimeservicessupported & EFI_RT_SUPPORTED_GET_WAKEUP_TIME)
-			|| (var_runtimeservicessupported == 0)) {
+		if (var_runtimeservicessupported & EFI_RT_SUPPORTED_GET_WAKEUP_TIME) {
 			fwts_passed(fw, "UEFI GetWakeupTime runtime service "
 				"supported status test passed.");
 		} else {
 			fwts_failed(fw, LOG_LEVEL_HIGH, "UEFIRuntimeGetWakeupTime",
 				"Get the GetWakeupTime runtime service unsupported "
-				"via RuntimeServicesSupported variable. "
+				"via RuntimeServicesSupported mask. "
 				"But actually is supported by firmware");
 		}
 	}
diff --git a/src/uefi/uefirtvariable/uefirtvariable.c b/src/uefi/uefirtvariable/uefirtvariable.c
index 713803dc..1fcde5e4 100644
--- a/src/uefi/uefirtvariable/uefirtvariable.c
+++ b/src/uefi/uefirtvariable/uefirtvariable.c
@@ -2020,7 +2020,7 @@ static int uefirtvariable_test9(fwts_framework *fw)
 {
 	long ioret;

-	bool getvar_supported;
+	bool have_rtsupported;
 	uint32_t var_runtimeservicessupported;

 	struct efi_getvariable getvariable;
@@ -2041,15 +2041,13 @@ static int uefirtvariable_test9(fwts_framework *fw)
 	uint64_t getdatasize = sizeof(testdata);
 	uint32_t attr;

-	fwts_uefi_rt_support_status_get(fd, &getvar_supported,
+	fwts_uefi_rt_support_status_get(fd, &have_rtsupported,
 			&var_runtimeservicessupported);

-	if (!getvar_supported || (var_runtimeservicessupported == 0xFFFF)) {
+	if (!have_rtsupported) {
 		fwts_skipped(fw, "Cannot get the RuntimeServicesSupported "
-				"variable, maybe the runtime service "
-				"GetVariable is not supported or "
-				"RuntimeServicesSupported not provided by "
-				"firmware.");
+				 "mask from the kernel. This IOCTL was "
+				 "introduced in Linux v5.11.");
 		return FWTS_SKIP;
 	}

@@ -2063,11 +2061,10 @@ static int uefirtvariable_test9(fwts_framework *fw)
 	ioret = ioctl(fd, EFI_RUNTIME_SET_VARIABLE, &setvariable);
 	if (ioret == -1) {
 		if (status == EFI_UNSUPPORTED) {
-			if ((var_runtimeservicessupported & EFI_RT_SUPPORTED_SET_VARIABLE)
-				|| (var_runtimeservicessupported == 0)) {
+			if (var_runtimeservicessupported & EFI_RT_SUPPORTED_SET_VARIABLE) {
 				fwts_failed(fw, LOG_LEVEL_HIGH, "UEFIRuntimeSetVariable",
 					"Get the Setvariable runtime service supported "
-					"via RuntimeServicesSupported variable. "
+					"via RuntimeServicesSupported mask. "
 					"But actually is not supported by firmware.");
 			} else {
 				fwts_passed(fw, "UEFI SetVariable runtime service "
@@ -2078,14 +2075,13 @@ static int uefirtvariable_test9(fwts_framework *fw)
 				fwts_skipped(fw, "Unknown error occurred, skip test.");
 				return FWTS_SKIP;
 			}
-			if ((var_runtimeservicessupported & EFI_RT_SUPPORTED_SET_VARIABLE) ||
-				(var_runtimeservicessupported == 0)) {
+			if (var_runtimeservicessupported & EFI_RT_SUPPORTED_SET_VARIABLE) {
 				fwts_passed(fw, "UEFI SetVariable runtime service "
 					"supported status test passed.");
 			} else {
 				fwts_failed(fw, LOG_LEVEL_HIGH, "UEFIRuntimeSetVariable",
 					"Get the SetVariable runtime service unsupported "
-					"via RuntimeServicesSupported variable. "
+					"via RuntimeServicesSupported mask. "
 					"But actually is supported by firmware.");
 			}
 		}
@@ -2094,14 +2090,13 @@ static int uefirtvariable_test9(fwts_framework *fw)
 			fwts_skipped(fw, "Unknown error occurred, skip test.");
 			return FWTS_SKIP;
 		}
-		if ((var_runtimeservicessupported & EFI_RT_SUPPORTED_SET_VARIABLE) ||
-			(var_runtimeservicessupported == 0)) {
+		if (var_runtimeservicessupported & EFI_RT_SUPPORTED_SET_VARIABLE) {
 			fwts_passed(fw, "UEFI SetVariable runtime service "
 				"supported status test passed.");
 		} else {
 			fwts_failed(fw, LOG_LEVEL_HIGH, "UEFIRuntimeSetVariable",
 				"Get the SetVariable runtime service unsupported "
-				"via RuntimeServicesSupported variable. "
+				"via RuntimeServicesSupported mask. "
 				"But actually is supported by firmware.");
 		}
 	}
@@ -2116,11 +2111,10 @@ static int uefirtvariable_test9(fwts_framework *fw)
 	ioret = ioctl(fd, EFI_RUNTIME_GET_VARIABLE, &getvariable);
 	if (ioret == -1) {
 		if (status == EFI_UNSUPPORTED) {
-			if ((var_runtimeservicessupported & EFI_RT_SUPPORTED_GET_VARIABLE)
-				|| (var_runtimeservicessupported == 0)) {
+			if (var_runtimeservicessupported & EFI_RT_SUPPORTED_GET_VARIABLE) {
 				fwts_failed(fw, LOG_LEVEL_HIGH, "UEFIRuntimeGetVariable",
 					"Get the GetVariable runtime service supported "
-					"via RuntimeServicesSupported variable. "
+					"via RuntimeServicesSupported mask. "
 					"But actually is not supported by firmware.");
 			} else {
 				fwts_passed(fw, "UEFI GetVariable runtime service "
@@ -2131,14 +2125,13 @@ static int uefirtvariable_test9(fwts_framework *fw)
 				fwts_skipped(fw, "Unknown error occurred, skip test.");
 				return FWTS_SKIP;
 			}
-			if ((var_runtimeservicessupported & EFI_RT_SUPPORTED_GET_VARIABLE) ||
-				(var_runtimeservicessupported == 0)) {
+			if (var_runtimeservicessupported & EFI_RT_SUPPORTED_GET_VARIABLE) {
 				fwts_passed(fw, "UEFI GetVariable runtime service "
 					"supported status test passed.");
 			} else {
 				fwts_failed(fw, LOG_LEVEL_HIGH, "UEFIRuntimeGetVariable",
 					"Get the GetVariable runtime service unsupported "
-					"via RuntimeServicesSupported variable. "
+					"via RuntimeServicesSupported mask. "
 					"But actually is supported by firmware.");
 			}
 		}
@@ -2147,14 +2140,13 @@ static int uefirtvariable_test9(fwts_framework *fw)
 			fwts_skipped(fw, "Unknown error occurred, skip test.");
 			return FWTS_SKIP;
 		}
-		if ((var_runtimeservicessupported & EFI_RT_SUPPORTED_GET_VARIABLE) ||
-			(var_runtimeservicessupported == 0)) {
+		if (var_runtimeservicessupported & EFI_RT_SUPPORTED_GET_VARIABLE) {
 			fwts_passed(fw, "UEFI GetVariable runtime service "
 				"supported status test passed.");
 		} else {
 			fwts_failed(fw, LOG_LEVEL_HIGH, "UEFIRuntimeGetVariable",
 				"Get the GetVariable runtime service unsupported "
-				"via RuntimeServicesSupported variable. "
+				"via RuntimeServicesSupported mask. "
 				"But actually is supported by firmware.");
 		}
 	}
@@ -2179,11 +2171,10 @@ static int uefirtvariable_test9(fwts_framework *fw)
 	ioret = ioctl(fd, EFI_RUNTIME_GET_NEXTVARIABLENAME, &getnextvariablename);
 	if (ioret == -1) {
 		if (status == EFI_UNSUPPORTED) {
-			if ((var_runtimeservicessupported & EFI_RT_SUPPORTED_GET_NEXT_VARIABLE_NAME)
-				|| (var_runtimeservicessupported == 0)) {
+			if (var_runtimeservicessupported & EFI_RT_SUPPORTED_GET_NEXT_VARIABLE_NAME) {
 				fwts_failed(fw, LOG_LEVEL_HIGH, "UEFIRuntimeGetNextVarName",
 					"Get the GetNextVarName runtime service supported "
-					"via RuntimeServicesSupported variable. "
+					"via RuntimeServicesSupported mask. "
 					"But actually is not supported by firmware.");
 			} else {
 				fwts_passed(fw, "UEFI GetNextVarName runtime service "
@@ -2194,14 +2185,13 @@ static int uefirtvariable_test9(fwts_framework *fw)
 				fwts_skipped(fw, "Unknown error occurred, skip test.");
 				return FWTS_SKIP;
 			}
-			if ((var_runtimeservicessupported & EFI_RT_SUPPORTED_GET_NEXT_VARIABLE_NAME)
-				|| (var_runtimeservicessupported == 0)) {
+			if (var_runtimeservicessupported & EFI_RT_SUPPORTED_GET_NEXT_VARIABLE_NAME) {
 				fwts_passed(fw, "UEFI GetNextVarName runtime service "
 					"supported status test passed.");
 			} else {
 				fwts_failed(fw, LOG_LEVEL_HIGH, "UEFIRuntimeGetNextVarName",
 					"Get the GetNextVarName runtime service unsupported "
-					"via RuntimeServicesSupported variable. "
+					"via RuntimeServicesSupported mask. "
 					"But actually is supported by firmware.");
 			}
 		}
@@ -2210,14 +2200,13 @@ static int uefirtvariable_test9(fwts_framework *fw)
 			fwts_skipped(fw, "Unknown error occurred, skip test.");
 			return FWTS_SKIP;
 		}
-		if ((var_runtimeservicessupported & EFI_RT_SUPPORTED_GET_NEXT_VARIABLE_NAME)
-			|| (var_runtimeservicessupported == 0)) {
+		if (var_runtimeservicessupported & EFI_RT_SUPPORTED_GET_NEXT_VARIABLE_NAME) {
 			fwts_passed(fw, "UEFI GetNextVarName runtime service "
 				"supported status test passed.");
 		} else {
 			fwts_failed(fw, LOG_LEVEL_HIGH, "UEFIRuntimeGetNextVarName",
 				"Get the GetNextVarName runtime service unsupported "
-				"via RuntimeServicesSupported variable. "
+				"via RuntimeServicesSupported mask. "
 				"But actually is supported by firmware.");
 		}
 	}
@@ -2232,11 +2221,10 @@ static int uefirtvariable_test9(fwts_framework *fw)
 	ioret = ioctl(fd, EFI_RUNTIME_QUERY_VARIABLEINFO, &queryvariableinfo);
 	if (ioret == -1) {
 		if (status == EFI_UNSUPPORTED) {
-			if ((var_runtimeservicessupported & EFI_RT_SUPPORTED_QUERY_VARIABLE_INFO)
-				|| (var_runtimeservicessupported == 0)) {
+			if (var_runtimeservicessupported & EFI_RT_SUPPORTED_QUERY_VARIABLE_INFO) {
 				fwts_failed(fw, LOG_LEVEL_HIGH, "UEFIRuntimeQueryVarInfo",
 					"Get the QueryVarInfo runtime service supported "
-					"via RuntimeServicesSupported variable. "
+					"via RuntimeServicesSupported mask. "
 					"But actually is not supported by firmware.");
 			} else {
 				fwts_passed(fw, "UEFI QueryVarInfo runtime service "
@@ -2247,14 +2235,13 @@ static int uefirtvariable_test9(fwts_framework *fw)
 				fwts_skipped(fw, "Unknown error occurred, skip test.");
 				return FWTS_SKIP;
 			}
-			if ((var_runtimeservicessupported & EFI_RT_SUPPORTED_QUERY_VARIABLE_INFO)
-				|| (var_runtimeservicessupported == 0)) {
+			if (var_runtimeservicessupported & EFI_RT_SUPPORTED_QUERY_VARIABLE_INFO) {
 				fwts_passed(fw, "UEFI QueryVarInfo runtime service "
 					"supported status test passed.");
 			} else {
 				fwts_failed(fw, LOG_LEVEL_HIGH, "UEFIRuntimeQueryVarInfo",
 					"Get the QueryVarInfo runtime service unsupported "
-					"via RuntimeServicesSupported variable. "
+					"via RuntimeServicesSupported mask. "
 					"But actually is supported by firmware.");
 			}
 		}
@@ -2263,14 +2250,13 @@ static int uefirtvariable_test9(fwts_framework *fw)
 			fwts_skipped(fw, "Unknown error occurred, skip test.");
 			return FWTS_SKIP;
 		}
-		if ((var_runtimeservicessupported & EFI_RT_SUPPORTED_QUERY_VARIABLE_INFO)
-			|| (var_runtimeservicessupported == 0)) {
+		if (var_runtimeservicessupported & EFI_RT_SUPPORTED_QUERY_VARIABLE_INFO) {
 			fwts_passed(fw, "UEFI QueryVarInfo runtime service "
 				"supported status test passed.");
 		} else {
 			fwts_failed(fw, LOG_LEVEL_HIGH, "UEFIRuntimeQueryVarInfo",
 				"Get the QueryVarInfo runtime service unsupported "
-				"via RuntimeServicesSupported variable. "
+				"via RuntimeServicesSupported mask. "
 				"But actually is supported by firmware.");
 		}
 	}
--
2.29.2




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