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Diffstat (limited to 'tools/testing/selftests/vm/protection_keys.c')
-rw-r--r--tools/testing/selftests/vm/protection_keys.c86
1 files changed, 52 insertions, 34 deletions
diff --git a/tools/testing/selftests/vm/protection_keys.c b/tools/testing/selftests/vm/protection_keys.c
index 2d0e881f109d..efa35cc6f6b9 100644
--- a/tools/testing/selftests/vm/protection_keys.c
+++ b/tools/testing/selftests/vm/protection_keys.c
@@ -22,6 +22,7 @@
* gcc -m32 -o protection_keys_32 -O2 -g -std=gnu99 -pthread -Wall protection_keys.c -lrt -ldl -lm
*/
#define _GNU_SOURCE
+#define __SANE_USERSPACE_TYPES__
#include <errno.h>
#include <linux/futex.h>
#include <sys/time.h>
@@ -48,7 +49,7 @@
int iteration_nr = 1;
int test_nr;
-unsigned int shadow_pkey_reg;
+u64 shadow_pkey_reg;
int dprint_in_signal;
char dprint_in_signal_buffer[DPRINT_IN_SIGNAL_BUF_SIZE];
@@ -163,7 +164,7 @@ void dump_mem(void *dumpme, int len_bytes)
for (i = 0; i < len_bytes; i += sizeof(u64)) {
u64 *ptr = (u64 *)(c + i);
- dprintf1("dump[%03d][@%p]: %016jx\n", i, ptr, *ptr);
+ dprintf1("dump[%03d][@%p]: %016llx\n", i, ptr, *ptr);
}
}
@@ -205,7 +206,8 @@ void signal_handler(int signum, siginfo_t *si, void *vucontext)
dprint_in_signal = 1;
dprintf1(">>>>===============SIGSEGV============================\n");
- dprintf1("%s()::%d, pkey_reg: 0x%x shadow: %x\n", __func__, __LINE__,
+ dprintf1("%s()::%d, pkey_reg: 0x%016llx shadow: %016llx\n",
+ __func__, __LINE__,
__read_pkey_reg(), shadow_pkey_reg);
trapno = uctxt->uc_mcontext.gregs[REG_TRAPNO];
@@ -213,8 +215,9 @@ void signal_handler(int signum, siginfo_t *si, void *vucontext)
fpregset = uctxt->uc_mcontext.fpregs;
fpregs = (void *)fpregset;
- dprintf2("%s() trapno: %d ip: 0x%lx info->si_code: %s/%d\n", __func__,
- trapno, ip, si_code_str(si->si_code), si->si_code);
+ dprintf2("%s() trapno: %d ip: 0x%016lx info->si_code: %s/%d\n",
+ __func__, trapno, ip, si_code_str(si->si_code),
+ si->si_code);
#ifdef __i386__
/*
* 32-bit has some extra padding so that userspace can tell whether
@@ -256,8 +259,9 @@ void signal_handler(int signum, siginfo_t *si, void *vucontext)
* need __read_pkey_reg() version so we do not do shadow_pkey_reg
* checking
*/
- dprintf1("signal pkey_reg from pkey_reg: %08x\n", __read_pkey_reg());
- dprintf1("pkey from siginfo: %jx\n", siginfo_pkey);
+ dprintf1("signal pkey_reg from pkey_reg: %016llx\n",
+ __read_pkey_reg());
+ dprintf1("pkey from siginfo: %016llx\n", siginfo_pkey);
*(u64 *)pkey_reg_ptr = 0x00000000;
dprintf1("WARNING: set PKEY_REG=0 to allow faulting instruction to continue\n");
pkey_faults++;
@@ -331,16 +335,17 @@ pid_t fork_lazy_child(void)
static u32 hw_pkey_get(int pkey, unsigned long flags)
{
u32 mask = (PKEY_DISABLE_ACCESS|PKEY_DISABLE_WRITE);
- u32 pkey_reg = __read_pkey_reg();
- u32 shifted_pkey_reg;
+ u64 pkey_reg = __read_pkey_reg();
+ u64 shifted_pkey_reg;
u32 masked_pkey_reg;
dprintf1("%s(pkey=%d, flags=%lx) = %x / %d\n",
__func__, pkey, flags, 0, 0);
- dprintf2("%s() raw pkey_reg: %x\n", __func__, pkey_reg);
+ dprintf2("%s() raw pkey_reg: %016llx\n", __func__, pkey_reg);
shifted_pkey_reg = (pkey_reg >> (pkey * PKEY_BITS_PER_PKEY));
- dprintf2("%s() shifted_pkey_reg: %x\n", __func__, shifted_pkey_reg);
+ dprintf2("%s() shifted_pkey_reg: %016llx\n", __func__,
+ shifted_pkey_reg);
masked_pkey_reg = shifted_pkey_reg & mask;
dprintf2("%s() masked pkey_reg: %x\n", __func__, masked_pkey_reg);
/*
@@ -353,8 +358,8 @@ static u32 hw_pkey_get(int pkey, unsigned long flags)
static int hw_pkey_set(int pkey, unsigned long rights, unsigned long flags)
{
u32 mask = (PKEY_DISABLE_ACCESS|PKEY_DISABLE_WRITE);
- u32 old_pkey_reg = __read_pkey_reg();
- u32 new_pkey_reg;
+ u64 old_pkey_reg = __read_pkey_reg();
+ u64 new_pkey_reg;
/* make sure that 'rights' only contains the bits we expect: */
assert(!(rights & ~mask));
@@ -369,7 +374,7 @@ static int hw_pkey_set(int pkey, unsigned long rights, unsigned long flags)
__write_pkey_reg(new_pkey_reg);
dprintf3("%s(pkey=%d, rights=%lx, flags=%lx) = %x"
- " pkey_reg now: %x old_pkey_reg: %x\n",
+ " pkey_reg now: %016llx old_pkey_reg: %016llx\n",
__func__, pkey, rights, flags, 0, __read_pkey_reg(),
old_pkey_reg);
return 0;
@@ -380,7 +385,7 @@ void pkey_disable_set(int pkey, int flags)
unsigned long syscall_flags = 0;
int ret;
int pkey_rights;
- u32 orig_pkey_reg = read_pkey_reg();
+ u64 orig_pkey_reg = read_pkey_reg();
dprintf1("START->%s(%d, 0x%x)\n", __func__,
pkey, flags);
@@ -390,6 +395,7 @@ void pkey_disable_set(int pkey, int flags)
dprintf1("%s(%d) hw_pkey_get(%d): %x\n", __func__,
pkey, pkey, pkey_rights);
+
pkey_assert(pkey_rights >= 0);
pkey_rights |= flags;
@@ -398,7 +404,8 @@ void pkey_disable_set(int pkey, int flags)
assert(!ret);
/* pkey_reg and flags have the same format */
shadow_pkey_reg |= flags << (pkey * 2);
- dprintf1("%s(%d) shadow: 0x%x\n", __func__, pkey, shadow_pkey_reg);
+ dprintf1("%s(%d) shadow: 0x%016llx\n",
+ __func__, pkey, shadow_pkey_reg);
pkey_assert(ret >= 0);
@@ -406,7 +413,8 @@ void pkey_disable_set(int pkey, int flags)
dprintf1("%s(%d) hw_pkey_get(%d): %x\n", __func__,
pkey, pkey, pkey_rights);
- dprintf1("%s(%d) pkey_reg: 0x%x\n", __func__, pkey, read_pkey_reg());
+ dprintf1("%s(%d) pkey_reg: 0x%016llx\n",
+ __func__, pkey, read_pkey_reg());
if (flags)
pkey_assert(read_pkey_reg() > orig_pkey_reg);
dprintf1("END<---%s(%d, 0x%x)\n", __func__,
@@ -418,7 +426,7 @@ void pkey_disable_clear(int pkey, int flags)
unsigned long syscall_flags = 0;
int ret;
int pkey_rights = hw_pkey_get(pkey, syscall_flags);
- u32 orig_pkey_reg = read_pkey_reg();
+ u64 orig_pkey_reg = read_pkey_reg();
pkey_assert(flags & (PKEY_DISABLE_ACCESS | PKEY_DISABLE_WRITE));
@@ -436,7 +444,8 @@ void pkey_disable_clear(int pkey, int flags)
dprintf1("%s(%d) hw_pkey_get(%d): %x\n", __func__,
pkey, pkey, pkey_rights);
- dprintf1("%s(%d) pkey_reg: 0x%x\n", __func__, pkey, read_pkey_reg());
+ dprintf1("%s(%d) pkey_reg: 0x%016llx\n", __func__,
+ pkey, read_pkey_reg());
if (flags)
assert(read_pkey_reg() > orig_pkey_reg);
}
@@ -491,20 +500,22 @@ int alloc_pkey(void)
int ret;
unsigned long init_val = 0x0;
- dprintf1("%s()::%d, pkey_reg: 0x%x shadow: %x\n", __func__,
- __LINE__, __read_pkey_reg(), shadow_pkey_reg);
+ dprintf1("%s()::%d, pkey_reg: 0x%016llx shadow: %016llx\n",
+ __func__, __LINE__, __read_pkey_reg(), shadow_pkey_reg);
ret = sys_pkey_alloc(0, init_val);
/*
* pkey_alloc() sets PKEY register, so we need to reflect it in
* shadow_pkey_reg:
*/
- dprintf4("%s()::%d, ret: %d pkey_reg: 0x%x shadow: 0x%x\n",
+ dprintf4("%s()::%d, ret: %d pkey_reg: 0x%016llx"
+ " shadow: 0x%016llx\n",
__func__, __LINE__, ret, __read_pkey_reg(),
shadow_pkey_reg);
if (ret) {
/* clear both the bits: */
shadow_pkey_reg &= ~(0x3 << (ret * 2));
- dprintf4("%s()::%d, ret: %d pkey_reg: 0x%x shadow: 0x%x\n",
+ dprintf4("%s()::%d, ret: %d pkey_reg: 0x%016llx"
+ " shadow: 0x%016llx\n",
__func__,
__LINE__, ret, __read_pkey_reg(),
shadow_pkey_reg);
@@ -514,13 +525,15 @@ int alloc_pkey(void)
*/
shadow_pkey_reg |= (init_val << (ret * 2));
}
- dprintf4("%s()::%d, ret: %d pkey_reg: 0x%x shadow: 0x%x\n",
+ dprintf4("%s()::%d, ret: %d pkey_reg: 0x%016llx"
+ " shadow: 0x%016llx\n",
__func__, __LINE__, ret, __read_pkey_reg(),
shadow_pkey_reg);
dprintf1("%s()::%d errno: %d\n", __func__, __LINE__, errno);
/* for shadow checking: */
read_pkey_reg();
- dprintf4("%s()::%d, ret: %d pkey_reg: 0x%x shadow: 0x%x\n",
+ dprintf4("%s()::%d, ret: %d pkey_reg: 0x%016llx"
+ " shadow: 0x%016llx\n",
__func__, __LINE__, ret, __read_pkey_reg(),
shadow_pkey_reg);
return ret;
@@ -573,7 +586,8 @@ int alloc_random_pkey(void)
free_ret = sys_pkey_free(alloced_pkeys[i]);
pkey_assert(!free_ret);
}
- dprintf1("%s()::%d, ret: %d pkey_reg: 0x%x shadow: 0x%x\n", __func__,
+ dprintf1("%s()::%d, ret: %d pkey_reg: 0x%016llx"
+ " shadow: 0x%016llx\n", __func__,
__LINE__, ret, __read_pkey_reg(), shadow_pkey_reg);
return ret;
}
@@ -592,11 +606,13 @@ int mprotect_pkey(void *ptr, size_t size, unsigned long orig_prot,
if (nr_iterations-- < 0)
break;
- dprintf1("%s()::%d, ret: %d pkey_reg: 0x%x shadow: 0x%x\n",
+ dprintf1("%s()::%d, ret: %d pkey_reg: 0x%016llx"
+ " shadow: 0x%016llx\n",
__func__, __LINE__, ret, __read_pkey_reg(),
shadow_pkey_reg);
sys_pkey_free(rpkey);
- dprintf1("%s()::%d, ret: %d pkey_reg: 0x%x shadow: 0x%x\n",
+ dprintf1("%s()::%d, ret: %d pkey_reg: 0x%016llx"
+ " shadow: 0x%016llx\n",
__func__, __LINE__, ret, __read_pkey_reg(),
shadow_pkey_reg);
}
@@ -606,7 +622,8 @@ int mprotect_pkey(void *ptr, size_t size, unsigned long orig_prot,
dprintf1("mprotect_pkey(%p, %zx, prot=0x%lx, pkey=%ld) ret: %d\n",
ptr, size, orig_prot, pkey, ret);
pkey_assert(!ret);
- dprintf1("%s()::%d, ret: %d pkey_reg: 0x%x shadow: 0x%x\n", __func__,
+ dprintf1("%s()::%d, ret: %d pkey_reg: 0x%016llx"
+ " shadow: 0x%016llx\n", __func__,
__LINE__, ret, __read_pkey_reg(), shadow_pkey_reg);
return ret;
}
@@ -885,7 +902,7 @@ void expected_pkey_fault(int pkey)
pkey_assert(0);
__write_pkey_reg(shadow_pkey_reg);
- dprintf1("%s() set pkey_reg=%x to restore state after signal "
+ dprintf1("%s() set pkey_reg=%016llx to restore state after signal "
"nuked it\n", __func__, shadow_pkey_reg);
last_pkey_faults = pkey_faults;
last_si_pkey = -1;
@@ -1097,7 +1114,8 @@ void test_pkey_alloc_exhaust(int *ptr, u16 pkey)
int new_pkey;
dprintf1("%s() alloc loop: %d\n", __func__, i);
new_pkey = alloc_pkey();
- dprintf4("%s()::%d, err: %d pkey_reg: 0x%x shadow: 0x%x\n",
+ dprintf4("%s()::%d, err: %d pkey_reg: 0x%016llx"
+ " shadow: 0x%016llx\n",
__func__, __LINE__, err, __read_pkey_reg(),
shadow_pkey_reg);
read_pkey_reg(); /* for shadow checking */
@@ -1285,7 +1303,7 @@ void test_executing_on_unreadable_memory(int *ptr, u16 pkey)
pkey_assert(!ret);
pkey_access_deny(pkey);
- dprintf2("pkey_reg: %x\n", read_pkey_reg());
+ dprintf2("pkey_reg: %016llx\n", read_pkey_reg());
/*
* Make sure this is an *instruction* fault
@@ -1316,7 +1334,7 @@ void test_implicit_mprotect_exec_only_memory(int *ptr, u16 pkey)
ret = mprotect(p1, PAGE_SIZE, PROT_EXEC);
pkey_assert(!ret);
- dprintf2("pkru: %x\n", read_pkey_reg());
+ dprintf2("pkey_reg: %016llx\n", read_pkey_reg());
/* Make sure this is an *instruction* fault */
madvise(p1, PAGE_SIZE, MADV_DONTNEED);
@@ -1433,7 +1451,7 @@ int main(void)
}
pkey_setup_shadow();
- printf("startup pkey_reg: %x\n", read_pkey_reg());
+ printf("startup pkey_reg: %016llx\n", read_pkey_reg());
setup_hugetlbfs();
while (nr_iterations-- > 0)
generated by cgit (git 2.34.1) at 2024-06-29 21:10:54 +0000