1 files changed, 0 insertions, 219 deletions
diff --git a/tools/testing/selftests/x86/pkey-helpers.h b/tools/testing/selftests/x86/pkey-helpers.h
deleted file mode 100644
index 254e5436bdd9..000000000000
--- a/tools/testing/selftests/x86/pkey-helpers.h
+++ /dev/null
@@ -1,219 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-#ifndef _PKEYS_HELPER_H
-#define _PKEYS_HELPER_H
-#define _GNU_SOURCE
-#include <string.h>
-#include <stdarg.h>
-#include <stdio.h>
-#include <stdint.h>
-#include <stdbool.h>
-#include <signal.h>
-#include <assert.h>
-#include <stdlib.h>
-#include <ucontext.h>
-#include <sys/mman.h>
-
-#define NR_PKEYS 16
-#define PKRU_BITS_PER_PKEY 2
-
-#ifndef DEBUG_LEVEL
-#define DEBUG_LEVEL 0
-#endif
-#define DPRINT_IN_SIGNAL_BUF_SIZE 4096
-extern int dprint_in_signal;
-extern char dprint_in_signal_buffer[DPRINT_IN_SIGNAL_BUF_SIZE];
-static inline void sigsafe_printf(const char *format, ...)
-{
-	va_list ap;
-
-	if (!dprint_in_signal) {
-		va_start(ap, format);
-		vprintf(format, ap);
-		va_end(ap);
-	} else {
-		int ret;
-		/*
-		 * No printf() functions are signal-safe.
-		 * They deadlock easily. Write the format
-		 * string to get some output, even if
-		 * incomplete.
-		 */
-		ret = write(1, format, strlen(format));
-		if (ret < 0)
-			exit(1);
-	}
-}
-#define dprintf_level(level, args...) do {	\
-	if (level <= DEBUG_LEVEL)		\
-		sigsafe_printf(args);		\
-} while (0)
-#define dprintf0(args...) dprintf_level(0, args)
-#define dprintf1(args...) dprintf_level(1, args)
-#define dprintf2(args...) dprintf_level(2, args)
-#define dprintf3(args...) dprintf_level(3, args)
-#define dprintf4(args...) dprintf_level(4, args)
-
-extern unsigned int shadow_pkru;
-static inline unsigned int __rdpkru(void)
-{
-	unsigned int eax, edx;
-	unsigned int ecx = 0;
-	unsigned int pkru;
-
-	asm volatile(".byte 0x0f,0x01,0xee\n\t"
-		     : "=a" (eax), "=d" (edx)
-		     : "c" (ecx));
-	pkru = eax;
-	return pkru;
-}
-
-static inline unsigned int _rdpkru(int line)
-{
-	unsigned int pkru = __rdpkru();
-
-	dprintf4("rdpkru(line=%d) pkru: %x shadow: %x\n",
-			line, pkru, shadow_pkru);
-	assert(pkru == shadow_pkru);
-
-	return pkru;
-}
-
-#define rdpkru() _rdpkru(__LINE__)
-
-static inline void __wrpkru(unsigned int pkru)
-{
-	unsigned int eax = pkru;
-	unsigned int ecx = 0;
-	unsigned int edx = 0;
-
-	dprintf4("%s() changing %08x to %08x\n", __func__, __rdpkru(), pkru);
-	asm volatile(".byte 0x0f,0x01,0xef\n\t"
-		     : : "a" (eax), "c" (ecx), "d" (edx));
-	assert(pkru == __rdpkru());
-}
-
-static inline void wrpkru(unsigned int pkru)
-{
-	dprintf4("%s() changing %08x to %08x\n", __func__, __rdpkru(), pkru);
-	/* will do the shadow check for us: */
-	rdpkru();
-	__wrpkru(pkru);
-	shadow_pkru = pkru;
-	dprintf4("%s(%08x) pkru: %08x\n", __func__, pkru, __rdpkru());
-}
-
-/*
- * These are technically racy. since something could
- * change PKRU between the read and the write.
- */
-static inline void __pkey_access_allow(int pkey, int do_allow)
-{
-	unsigned int pkru = rdpkru();
-	int bit = pkey * 2;
-
-	if (do_allow)
-		pkru &= (1<<bit);
-	else
-		pkru |= (1<<bit);
-
-	dprintf4("pkru now: %08x\n", rdpkru());
-	wrpkru(pkru);
-}
-
-static inline void __pkey_write_allow(int pkey, int do_allow_write)
-{
-	long pkru = rdpkru();
-	int bit = pkey * 2 + 1;
-
-	if (do_allow_write)
-		pkru &= (1<<bit);
-	else
-		pkru |= (1<<bit);
-
-	wrpkru(pkru);
-	dprintf4("pkru now: %08x\n", rdpkru());
-}
-
-#define PROT_PKEY0     0x10            /* protection key value (bit 0) */
-#define PROT_PKEY1     0x20            /* protection key value (bit 1) */
-#define PROT_PKEY2     0x40            /* protection key value (bit 2) */
-#define PROT_PKEY3     0x80            /* protection key value (bit 3) */
-
-#define PAGE_SIZE 4096
-#define MB	(1<<20)
-
-static inline void __cpuid(unsigned int *eax, unsigned int *ebx,
-		unsigned int *ecx, unsigned int *edx)
-{
-	/* ecx is often an input as well as an output. */
-	asm volatile(
-		"cpuid;"
-		: "=a" (*eax),
-		  "=b" (*ebx),
-		  "=c" (*ecx),
-		  "=d" (*edx)
-		: "0" (*eax), "2" (*ecx));
-}
-
-/* Intel-defined CPU features, CPUID level 0x00000007:0 (ecx) */
-#define X86_FEATURE_PKU        (1<<3) /* Protection Keys for Userspace */
-#define X86_FEATURE_OSPKE      (1<<4) /* OS Protection Keys Enable */
-
-static inline int cpu_has_pku(void)
-{
-	unsigned int eax;
-	unsigned int ebx;
-	unsigned int ecx;
-	unsigned int edx;
-
-	eax = 0x7;
-	ecx = 0x0;
-	__cpuid(&eax, &ebx, &ecx, &edx);
-
-	if (!(ecx & X86_FEATURE_PKU)) {
-		dprintf2("cpu does not have PKU\n");
-		return 0;
-	}
-	if (!(ecx & X86_FEATURE_OSPKE)) {
-		dprintf2("cpu does not have OSPKE\n");
-		return 0;
-	}
-	return 1;
-}
-
-#define XSTATE_PKRU_BIT	(9)
-#define XSTATE_PKRU	0x200
-
-int pkru_xstate_offset(void)
-{
-	unsigned int eax;
-	unsigned int ebx;
-	unsigned int ecx;
-	unsigned int edx;
-	int xstate_offset;
-	int xstate_size;
-	unsigned long XSTATE_CPUID = 0xd;
-	int leaf;
-
-	/* assume that XSTATE_PKRU is set in XCR0 */
-	leaf = XSTATE_PKRU_BIT;
-	{
-		eax = XSTATE_CPUID;
-		ecx = leaf;
-		__cpuid(&eax, &ebx, &ecx, &edx);
-
-		if (leaf == XSTATE_PKRU_BIT) {
-			xstate_offset = ebx;
-			xstate_size = eax;
-		}
-	}
-
-	if (xstate_size == 0) {
-		printf("could not find size/offset of PKRU in xsave state\n");
-		return 0;
-	}
-
-	return xstate_offset;
-}
-
-#endif /* _PKEYS_HELPER_H */