This is a note to let you know that I've just added the patch titled
x86/pkeys/selftests: Adjust the self-test to fresh distros that export the pkeys ABI
to the 4.14-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
x86-pkeys-selftests-adjust-the-self-test-to-fresh-distros-that-export-the-pkeys-abi.patch
and it can be found in the queue-4.14 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From foo@baz Sun Jun 17 12:13:49 CEST 2018
From: Ingo Molnar <mingo@xxxxxxxxxx>
Date: Mon, 14 May 2018 10:56:23 +0200
Subject: x86/pkeys/selftests: Adjust the self-test to fresh distros that export the pkeys ABI
From: Ingo Molnar <mingo@xxxxxxxxxx>
[ Upstream commit 0fb96620dce351608aa82eed5942e2f58b07beda ]
Ubuntu 18.04 started exporting pkeys details in header files, resulting
in build failures and warnings in the pkeys self-tests:
protection_keys.c:232:0: warning: "SEGV_BNDERR" redefined
protection_keys.c:387:5: error: conflicting types for ‘pkey_get’
protection_keys.c:409:5: error: conflicting types for ‘pkey_set’
...
Fix these namespace conflicts and double definitions, plus also
clean up the ABI definitions to make it all a bit more readable ...
Cc: Dave Hansen <dave.hansen@xxxxxxxxxxxxxxx>
Cc: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Cc: akpm@xxxxxxxxxxxxxxxxxxxx
Cc: dave.hansen@xxxxxxxxx
Cc: linux-mm@xxxxxxxxx
Cc: linuxram@xxxxxxxxxx
Cc: mpe@xxxxxxxxxxxxxx
Cc: shakeelb@xxxxxxxxxx
Cc: shuah@xxxxxxxxxx
Link: http://lkml.kernel.org/r/20180514085623.GB7094@xxxxxxxxx
Signed-off-by: Ingo Molnar <mingo@xxxxxxxxxx>
Signed-off-by: Sasha Levin <alexander.levin@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
tools/testing/selftests/x86/protection_keys.c | 67 +++++++++++++++-----------
1 file changed, 41 insertions(+), 26 deletions(-)
--- a/tools/testing/selftests/x86/protection_keys.c
+++ b/tools/testing/selftests/x86/protection_keys.c
@@ -191,26 +191,30 @@ void lots_o_noops_around_write(int *writ
#ifdef __i386__
#ifndef SYS_mprotect_key
-# define SYS_mprotect_key 380
+# define SYS_mprotect_key 380
#endif
+
#ifndef SYS_pkey_alloc
-# define SYS_pkey_alloc 381
-# define SYS_pkey_free 382
+# define SYS_pkey_alloc 381
+# define SYS_pkey_free 382
#endif
-#define REG_IP_IDX REG_EIP
-#define si_pkey_offset 0x14
+
+#define REG_IP_IDX REG_EIP
+#define si_pkey_offset 0x14
#else
#ifndef SYS_mprotect_key
-# define SYS_mprotect_key 329
+# define SYS_mprotect_key 329
#endif
+
#ifndef SYS_pkey_alloc
-# define SYS_pkey_alloc 330
-# define SYS_pkey_free 331
+# define SYS_pkey_alloc 330
+# define SYS_pkey_free 331
#endif
-#define REG_IP_IDX REG_RIP
-#define si_pkey_offset 0x20
+
+#define REG_IP_IDX REG_RIP
+#define si_pkey_offset 0x20
#endif
@@ -225,8 +229,14 @@ void dump_mem(void *dumpme, int len_byte
}
}
-#define SEGV_BNDERR 3 /* failed address bound checks */
-#define SEGV_PKUERR 4
+/* Failed address bound checks: */
+#ifndef SEGV_BNDERR
+# define SEGV_BNDERR 3
+#endif
+
+#ifndef SEGV_PKUERR
+# define SEGV_PKUERR 4
+#endif
static char *si_code_str(int si_code)
{
@@ -393,10 +403,15 @@ pid_t fork_lazy_child(void)
return forkret;
}
-#define PKEY_DISABLE_ACCESS 0x1
-#define PKEY_DISABLE_WRITE 0x2
+#ifndef PKEY_DISABLE_ACCESS
+# define PKEY_DISABLE_ACCESS 0x1
+#endif
+
+#ifndef PKEY_DISABLE_WRITE
+# define PKEY_DISABLE_WRITE 0x2
+#endif
-u32 pkey_get(int pkey, unsigned long flags)
+static u32 hw_pkey_get(int pkey, unsigned long flags)
{
u32 mask = (PKEY_DISABLE_ACCESS|PKEY_DISABLE_WRITE);
u32 pkru = __rdpkru();
@@ -418,7 +433,7 @@ u32 pkey_get(int pkey, unsigned long fla
return masked_pkru;
}
-int pkey_set(int pkey, unsigned long rights, 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_pkru = __rdpkru();
@@ -452,15 +467,15 @@ void pkey_disable_set(int pkey, int flag
pkey, flags);
pkey_assert(flags & (PKEY_DISABLE_ACCESS | PKEY_DISABLE_WRITE));
- pkey_rights = pkey_get(pkey, syscall_flags);
+ pkey_rights = hw_pkey_get(pkey, syscall_flags);
- dprintf1("%s(%d) pkey_get(%d): %x\n", __func__,
+ dprintf1("%s(%d) hw_pkey_get(%d): %x\n", __func__,
pkey, pkey, pkey_rights);
pkey_assert(pkey_rights >= 0);
pkey_rights |= flags;
- ret = pkey_set(pkey, pkey_rights, syscall_flags);
+ ret = hw_pkey_set(pkey, pkey_rights, syscall_flags);
assert(!ret);
/*pkru and flags have the same format */
shadow_pkru |= flags << (pkey * 2);
@@ -468,8 +483,8 @@ void pkey_disable_set(int pkey, int flag
pkey_assert(ret >= 0);
- pkey_rights = pkey_get(pkey, syscall_flags);
- dprintf1("%s(%d) pkey_get(%d): %x\n", __func__,
+ pkey_rights = hw_pkey_get(pkey, syscall_flags);
+ dprintf1("%s(%d) hw_pkey_get(%d): %x\n", __func__,
pkey, pkey, pkey_rights);
dprintf1("%s(%d) pkru: 0x%x\n", __func__, pkey, rdpkru());
@@ -483,24 +498,24 @@ void pkey_disable_clear(int pkey, int fl
{
unsigned long syscall_flags = 0;
int ret;
- int pkey_rights = pkey_get(pkey, syscall_flags);
+ int pkey_rights = hw_pkey_get(pkey, syscall_flags);
u32 orig_pkru = rdpkru();
pkey_assert(flags & (PKEY_DISABLE_ACCESS | PKEY_DISABLE_WRITE));
- dprintf1("%s(%d) pkey_get(%d): %x\n", __func__,
+ dprintf1("%s(%d) hw_pkey_get(%d): %x\n", __func__,
pkey, pkey, pkey_rights);
pkey_assert(pkey_rights >= 0);
pkey_rights |= flags;
- ret = pkey_set(pkey, pkey_rights, 0);
+ ret = hw_pkey_set(pkey, pkey_rights, 0);
/* pkru and flags have the same format */
shadow_pkru &= ~(flags << (pkey * 2));
pkey_assert(ret >= 0);
- pkey_rights = pkey_get(pkey, syscall_flags);
- dprintf1("%s(%d) pkey_get(%d): %x\n", __func__,
+ pkey_rights = hw_pkey_get(pkey, syscall_flags);
+ dprintf1("%s(%d) hw_pkey_get(%d): %x\n", __func__,
pkey, pkey, pkey_rights);
dprintf1("%s(%d) pkru: 0x%x\n", __func__, pkey, rdpkru());
Patches currently in stable-queue which might be from mingo@xxxxxxxxxx are
queue-4.14/locking-rwsem-add-a-new-rwsem_anonymously_owned-flag.patch
queue-4.14/x86-pkeys-selftests-factor-out-instruction-page.patch
queue-4.14/kthread-sched-wait-fix-kthread_parkme-wait-loop.patch
queue-4.14/proc-kcore-don-t-bounds-check-against-address-0.patch
queue-4.14/stop_machine-sched-fix-migrate_swap-vs.-active_balance-deadlock.patch
queue-4.14/init-fix-false-positives-in-w-x-checking.patch
queue-4.14/x86-pkeys-selftests-fix-pointer-math.patch
queue-4.14/x86-pkeys-selftests-adjust-the-self-test-to-fresh-distros-that-export-the-pkeys-abi.patch
queue-4.14/locking-percpu-rwsem-annotate-rwsem-ownership-transfer-by-setting-rwsem_owner_unknown.patch
queue-4.14/x86-pkeys-selftests-add-a-test-for-pkey-0.patch
queue-4.14/x86-pkeys-selftests-stop-using-assert.patch
queue-4.14/sched-core-introduce-set_special_state.patch
queue-4.14/x86-pkeys-selftests-save-off-prot-for-allocations.patch
queue-4.14/x86-pkeys-selftests-remove-dead-debugging-code-fix-dprint_in_signal.patch
queue-4.14/x86-selftests-add-mov_to_ss-test.patch
queue-4.14/sched-debug-move-the-print_rt_rq-and-print_dl_rq-declarations-to-kernel-sched-sched.h.patch
queue-4.14/x86-mpx-selftests-adjust-the-self-test-to-fresh-distros-that-export-the-mpx-abi.patch
queue-4.14/x86-pkeys-selftests-add-prot_exec-test.patch
queue-4.14/sched-deadline-make-the-grub_reclaim-function-static.patch
queue-4.14/objtool-kprobes-x86-sync-the-latest-asm-insn.h-header-with-tools-objtool-arch-x86-include-asm-insn.h.patch
queue-4.14/x86-pkeys-selftests-allow-faults-on-unknown-keys.patch
queue-4.14/x86-pkeys-selftests-give-better-unexpected-fault-error-messages.patch
queue-4.14/efi-libstub-arm64-handle-randomized-text_offset.patch
queue-4.14/x86-pkeys-selftests-fix-pkey-exhaustion-test-off-by-one.patch
