| lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
|
Open Source and information security mailing list archives
| ||
|
Message-Id: <1444315669-23487-25-git-send-email-khandual@linux.vnet.ibm.com>
Date: Thu, 8 Oct 2015 20:17:45 +0530
From: Anshuman Khandual <khandual@...ux.vnet.ibm.com>
To: linux-kernel@...r.kernel.org, linuxppc-dev@...abs.org
Cc: peterz@...radead.org, akpm@...ux-foundation.org,
tglx@...utronix.de, james.hogan@...tec.com, avagin@...nvz.org,
Paul.Clothier@...tec.com, palves@...hat.com, oleg@...hat.com,
dhowells@...hat.com, davej@...hat.com, davem@...emloft.net,
mikey@...ling.org, benh@...nel.crashing.org,
sukadev@...ux.vnet.ibm.com, mpe@...erman.id.au,
sam.bobroff@....ibm.com, kirjanov@...il.com,
shuahkh@....samsung.com, Ulrich.Weigand@...ibm.com,
emachado@...ux.vnet.ibm.com
Subject: [PATCH V9 24/28] selftests, powerpc: Add ptrace tests for VSX, VMX registers
This patch adds ptrace interface test for VSX, VMX registers.
This also adds ptrace interface based helper functions related
to VSX, VMX registers access. This also adds some assembly
helper functions related to VSX and VMX registers.
Signed-off-by: Anshuman Khandual <khandual@...ux.vnet.ibm.com>
---
tools/testing/selftests/powerpc/ptrace/Makefile | 2 +-
.../testing/selftests/powerpc/ptrace/ptrace-vsx.c | 138 +++++++++++
.../testing/selftests/powerpc/ptrace/ptrace-vsx.h | 104 ++++++++
tools/testing/selftests/powerpc/ptrace/ptrace.S | 265 +++++++++++++++++++++
tools/testing/selftests/powerpc/ptrace/ptrace.h | 119 +++++++++
5 files changed, 627 insertions(+), 1 deletion(-)
create mode 100644 tools/testing/selftests/powerpc/ptrace/ptrace-vsx.c
create mode 100644 tools/testing/selftests/powerpc/ptrace/ptrace-vsx.h
diff --git a/tools/testing/selftests/powerpc/ptrace/Makefile b/tools/testing/selftests/powerpc/ptrace/Makefile
index f058083..1c5437e 100644
--- a/tools/testing/selftests/powerpc/ptrace/Makefile
+++ b/tools/testing/selftests/powerpc/ptrace/Makefile
@@ -1,5 +1,5 @@
TEST_PROGS := ptrace-ebb ptrace-gpr ptrace-tm-gpr ptrace-tm-spd-gpr \
-ptrace-tar ptrace-tm-tar ptrace-tm-spd-tar
+ptrace-tar ptrace-tm-tar ptrace-tm-spd-tar ptrace-vsx
all: $(TEST_PROGS)
diff --git a/tools/testing/selftests/powerpc/ptrace/ptrace-vsx.c b/tools/testing/selftests/powerpc/ptrace/ptrace-vsx.c
new file mode 100644
index 0000000..a11b9a3
--- /dev/null
+++ b/tools/testing/selftests/powerpc/ptrace/ptrace-vsx.c
@@ -0,0 +1,138 @@
+/*
+ * Ptrace test for VMX/VSX registers
+ *
+ * Copyright (C) 2015 Anshuman Khandual, IBM Corporation.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+#include "ptrace.h"
+#include "ptrace-vsx.h"
+
+/* Tracer and Tracee Shared Data */
+int shm_id;
+volatile int *cptr, *pptr;
+
+extern void loadvsx(void *p, int tmp);
+extern void storevsx(void *p, int tmp);
+
+unsigned long fp_load[VEC_MAX];
+unsigned long fp_load_new[VEC_MAX];
+unsigned long fp_store[VEC_MAX];
+
+void vsx(void)
+{
+ int ret;
+
+ cptr = (int *)shmat(shm_id, NULL, 0);
+ loadvsx(fp_load, 0);
+
+ while(!cptr[0]);
+ shmdt((void *) cptr);
+
+ storevsx(fp_store, 0);
+ ret = compare_vsx_vmx(fp_store, fp_load_new);
+ if (ret)
+ exit(1);
+ exit(0);
+}
+
+int trace_vsx(pid_t child)
+{
+ unsigned long vsx[VSX_MAX];
+ unsigned long vmx[VMX_MAX + 2][2];
+ int ret;
+
+ sleep(1);
+ ret = start_trace(child);
+ if (ret)
+ return TEST_FAIL;
+
+ ret = show_vsx(child, vsx);
+ if (ret)
+ return TEST_FAIL;
+
+ ret = validate_vsx(vsx, fp_load);
+ if (ret)
+ return TEST_FAIL;
+
+ ret = show_vmx(child, vmx);
+ if (ret)
+ return TEST_FAIL;
+
+ ret = validate_vmx(vmx, fp_load);
+ if (ret)
+ return TEST_FAIL;
+
+ memset(vsx, 0, sizeof(vsx));
+ memset(vmx, 0, sizeof(vmx));
+ load_vsx_vmx(fp_load_new, vsx, vmx);
+
+ ret = write_vsx(child, vsx);
+ if (ret)
+ return TEST_FAIL;
+
+ ret = write_vmx(child, vmx);
+ if (ret)
+ return TEST_FAIL;
+
+ ret = stop_trace(child);
+ if (ret)
+ return TEST_FAIL;
+
+ return TEST_PASS;
+}
+
+int ptrace_vsx(void)
+{
+ pid_t pid;
+ int ret, status, i;
+
+ shm_id = shmget(IPC_PRIVATE, sizeof(int) * 1, 0777|IPC_CREAT);
+
+ for(i = 0; i < VEC_MAX; i++)
+ fp_load[i] = i + rand();
+
+ for(i = 0; i < VEC_MAX; i++)
+ fp_load_new[i] = i + 2 * rand();
+
+ pid = fork();
+ if (pid < 0) {
+ perror("fork() failed");
+ return TEST_FAIL;
+ }
+
+ if (pid == 0)
+ vsx();
+
+ if (pid) {
+ pptr = (int *)shmat(shm_id, NULL, 0);
+ ret = trace_vsx(pid);
+ if (ret) {
+ kill(pid, SIGTERM);
+ return TEST_FAIL;
+ }
+
+ pptr[0] = 1;
+ shmdt((void *)pptr);
+
+ ret = wait(&status);
+ if (ret != pid) {
+ printf("Child's exit status not captured\n");
+ return TEST_FAIL;
+ }
+
+ if (WIFEXITED(status)) {
+ if(WEXITSTATUS(status))
+ return TEST_FAIL;
+ }
+ }
+ return TEST_PASS;
+}
+
+int main(int argc, char *argv[])
+{
+ return test_harness(ptrace_vsx, "ptrace_vsx");
+}
diff --git a/tools/testing/selftests/powerpc/ptrace/ptrace-vsx.h b/tools/testing/selftests/powerpc/ptrace/ptrace-vsx.h
new file mode 100644
index 0000000..8a3eaae
--- /dev/null
+++ b/tools/testing/selftests/powerpc/ptrace/ptrace-vsx.h
@@ -0,0 +1,104 @@
+/*
+ * Copyright (C) 2015 Anshuman Khandual, IBM Corporation.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+#define VEC_MAX 128
+#define VSX_MAX 32
+#define VMX_MAX 32
+
+/*
+ * unsigned long vsx[32]
+ * unsigned long load[128]
+ */
+int validate_vsx(unsigned long *vsx, unsigned long *load)
+{
+ int i;
+
+ for (i = 0; i < VSX_MAX; i++) {
+ if (vsx[i] != load[2 * i + 1]) {
+ printf("vsx[%d]: %lx load[%d] %lx\n", i, vsx[i], 2 * i + 1, load[2 * i + 1]);
+ return TEST_FAIL;
+ }
+ }
+ return TEST_PASS;
+}
+
+/*
+ * unsigned long vmx[32][2]
+ * unsigned long load[128]
+ */
+int validate_vmx(unsigned long vmx[][2], unsigned long *load)
+{
+ int i;
+
+ for (i = 0; i < VMX_MAX; i++) {
+ #if __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
+ if ((vmx[i][0] != load[64 + 2 * i]) || (vmx[i][1] != load[65 + 2 * i])) {
+ printf("vmx[%d][0]: %lx load[%d] %lx\n", i, vmx[i][0], 64 + 2 * i, load[64 + 2 * i]);
+ printf("vmx[%d][1]: %lx load[%d] %lx\n", i, vmx[i][1], 65 + 2 * i, load[65 + 2 * i]);
+ return TEST_FAIL;
+ }
+ #else /* In LE each value pair is stored in an alternate manner */
+ if ((vmx[i][0] != load[65 + 2 * i]) || (vmx[i][1] != load[64 + 2 * i])) {
+ printf("vmx[%d][0]: %lx load[%d] %lx\n", i, vmx[i][0], 65 + 2 * i, load[65 + 2 * i]);
+ printf("vmx[%d][1]: %lx load[%d] %lx\n", i, vmx[i][1], 64 + 2 * i, load[64 + 2 * i]);
+ return TEST_FAIL;
+ }
+ #endif
+ }
+ return TEST_PASS;
+}
+
+/*
+ * unsigned long store[128]
+ * unsigned long load[128]
+ */
+int compare_vsx_vmx(unsigned long *store, unsigned long *load)
+{
+ int i;
+
+ for (i = 0; i < VSX_MAX; i++) {
+ if (store[1 + 2 * i] != load[1 + 2 * i]) {
+ printf("store[%d]: %lx load[%d] %lx\n", 1 + 2 * i, store[i], 1 + 2 * i, load[i]);
+ return TEST_FAIL;
+ }
+ }
+
+ #if __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
+ for (i = 64; i < VEC_MAX; i++) {
+ if (store[i] != load[i]) {
+ printf("store[%d]: %lx load[%d] %lx\n", i, store[i], i, load[i]);
+ return TEST_FAIL;
+ }
+ }
+ #else /* In LE each value pair is stored in an alternate manner */
+ for (i = 64; i < VEC_MAX; i++) {
+ if (!(i % 2) && (store[i] != load[i+1])) {
+ printf("store[%d]: %lx load[%d] %lx\n", i, store[i], i+1, load[i+1]);
+ return TEST_FAIL;
+ }
+ if ((i % 2) && (store[i] != load[i-1])) {
+ printf("here store[%d]: %lx load[%d] %lx\n", i, store[i], i-1, load[i-1]);
+ return TEST_FAIL;
+ }
+ }
+ #endif
+ return TEST_PASS;
+}
+
+void load_vsx_vmx(unsigned long *load, unsigned long *vsx, unsigned long vmx[][2])
+{
+ int i;
+
+ for (i = 0; i < VSX_MAX; i++)
+ vsx[i] = load[1 + 2 * i];
+
+ for (i = 0; i < VMX_MAX; i++) {
+ vmx[i][0] = load[64 + 2 * i];
+ vmx[i][1] = load[65 + 2 * i];
+ }
+}
diff --git a/tools/testing/selftests/powerpc/ptrace/ptrace.S b/tools/testing/selftests/powerpc/ptrace/ptrace.S
index 193beea..2407792 100644
--- a/tools/testing/selftests/powerpc/ptrace/ptrace.S
+++ b/tools/testing/selftests/powerpc/ptrace/ptrace.S
@@ -129,3 +129,268 @@ FUNC_START(store_fpr)
stfs 31, 31*4(3)
blr
FUNC_END(store_fpr)
+
+/* VMX/VSX registers - unsigned long buf[128] */
+FUNC_START(loadvsx)
+ lis 4, 0
+ LXVD2X (0,(4),(3))
+ addi 4, 4, 16
+ LXVD2X (1,(4),(3))
+ addi 4, 4, 16
+ LXVD2X (2,(4),(3))
+ addi 4, 4, 16
+ LXVD2X (3,(4),(3))
+ addi 4, 4, 16
+ LXVD2X (4,(4),(3))
+ addi 4, 4, 16
+ LXVD2X (5,(4),(3))
+ addi 4, 4, 16
+ LXVD2X (6,(4),(3))
+ addi 4, 4, 16
+ LXVD2X (7,(4),(3))
+ addi 4, 4, 16
+ LXVD2X (8,(4),(3))
+ addi 4, 4, 16
+ LXVD2X (9,(4),(3))
+ addi 4, 4, 16
+ LXVD2X (10,(4),(3))
+ addi 4, 4, 16
+ LXVD2X (11,(4),(3))
+ addi 4, 4, 16
+ LXVD2X (12,(4),(3))
+ addi 4, 4, 16
+ LXVD2X (13,(4),(3))
+ addi 4, 4, 16
+ LXVD2X (14,(4),(3))
+ addi 4, 4, 16
+ LXVD2X (15,(4),(3))
+ addi 4, 4, 16
+ LXVD2X (16,(4),(3))
+ addi 4, 4, 16
+ LXVD2X (17,(4),(3))
+ addi 4, 4, 16
+ LXVD2X (18,(4),(3))
+ addi 4, 4, 16
+ LXVD2X (19,(4),(3))
+ addi 4, 4, 16
+ LXVD2X (20,(4),(3))
+ addi 4, 4, 16
+ LXVD2X (21,(4),(3))
+ addi 4, 4, 16
+ LXVD2X (22,(4),(3))
+ addi 4, 4, 16
+ LXVD2X (23,(4),(3))
+ addi 4, 4, 16
+ LXVD2X (24,(4),(3))
+ addi 4, 4, 16
+ LXVD2X (25,(4),(3))
+ addi 4, 4, 16
+ LXVD2X (26,(4),(3))
+ addi 4, 4, 16
+ LXVD2X (27,(4),(3))
+ addi 4, 4, 16
+ LXVD2X (28,(4),(3))
+ addi 4, 4, 16
+ LXVD2X (29,(4),(3))
+ addi 4, 4, 16
+ LXVD2X (30,(4),(3))
+ addi 4, 4, 16
+ LXVD2X (31,(4),(3))
+ addi 4, 4, 16
+ LXVD2X (32,(4),(3))
+ addi 4, 4, 16
+ LXVD2X (33,(4),(3))
+ addi 4, 4, 16
+ LXVD2X (34,(4),(3))
+ addi 4, 4, 16
+ LXVD2X (35,(4),(3))
+ addi 4, 4, 16
+ LXVD2X (36,(4),(3))
+ addi 4, 4, 16
+ LXVD2X (37,(4),(3))
+ addi 4, 4, 16
+ LXVD2X (38,(4),(3))
+ addi 4, 4, 16
+ LXVD2X (39,(4),(3))
+ addi 4, 4, 16
+ LXVD2X (40,(4),(3))
+ addi 4, 4, 16
+ LXVD2X (41,(4),(3))
+ addi 4, 4, 16
+ LXVD2X (42,(4),(3))
+ addi 4, 4, 16
+ LXVD2X (43,(4),(3))
+ addi 4, 4, 16
+ LXVD2X (44,(4),(3))
+ addi 4, 4, 16
+ LXVD2X (45,(4),(3))
+ addi 4, 4, 16
+ LXVD2X (46,(4),(3))
+ addi 4, 4, 16
+ LXVD2X (47,(4),(3))
+ addi 4, 4, 16
+ LXVD2X (48,(4),(3))
+ addi 4, 4, 16
+ LXVD2X (49,(4),(3))
+ addi 4, 4, 16
+ LXVD2X (50,(4),(3))
+ addi 4, 4, 16
+ LXVD2X (51,(4),(3))
+ addi 4, 4, 16
+ LXVD2X (52,(4),(3))
+ addi 4, 4, 16
+ LXVD2X (53,(4),(3))
+ addi 4, 4, 16
+ LXVD2X (54,(4),(3))
+ addi 4, 4, 16
+ LXVD2X (55,(4),(3))
+ addi 4, 4, 16
+ LXVD2X (56,(4),(3))
+ addi 4, 4, 16
+ LXVD2X (57,(4),(3))
+ addi 4, 4, 16
+ LXVD2X (58,(4),(3))
+ addi 4, 4, 16
+ LXVD2X (59,(4),(3))
+ addi 4, 4, 16
+ LXVD2X (60,(4),(3))
+ addi 4, 4, 16
+ LXVD2X (61,(4),(3))
+ addi 4, 4, 16
+ LXVD2X (62,(4),(3))
+ addi 4, 4, 16
+ LXVD2X (63,(4),(3))
+ blr
+FUNC_END(loadvsx)
+
+FUNC_START(storevsx)
+ lis 4, 0
+ STXVD2X (0,(4),(3))
+ addi 4, 4, 16
+ STXVD2X (1,(4),(3))
+ addi 4, 4, 16
+ STXVD2X (2,(4),(3))
+ addi 4, 4, 16
+ STXVD2X (3,(4),(3))
+ addi 4, 4, 16
+ STXVD2X (4,(4),(3))
+ addi 4, 4, 16
+ STXVD2X (5,(4),(3))
+ addi 4, 4, 16
+ STXVD2X (6,(4),(3))
+ addi 4, 4, 16
+ STXVD2X (7,(4),(3))
+ addi 4, 4, 16
+ STXVD2X (8,(4),(3))
+ addi 4, 4, 16
+ STXVD2X (9,(4),(3))
+ addi 4, 4, 16
+ STXVD2X (10,(4),(3))
+ addi 4, 4, 16
+ STXVD2X (11,(4),(3))
+ addi 4, 4, 16
+ STXVD2X (12,(4),(3))
+ addi 4, 4, 16
+ STXVD2X (13,(4),(3))
+ addi 4, 4, 16
+ STXVD2X (14,(4),(3))
+ addi 4, 4, 16
+ STXVD2X (15,(4),(3))
+ addi 4, 4, 16
+ STXVD2X (16,(4),(3))
+ addi 4, 4, 16
+ STXVD2X (17,(4),(3))
+ addi 4, 4, 16
+ STXVD2X (18,(4),(3))
+ addi 4, 4, 16
+ STXVD2X (19,(4),(3))
+ addi 4, 4, 16
+ STXVD2X (20,(4),(3))
+ addi 4, 4, 16
+ STXVD2X (21,(4),(3))
+ addi 4, 4, 16
+ STXVD2X (22,(4),(3))
+ addi 4, 4, 16
+ STXVD2X (23,(4),(3))
+ addi 4, 4, 16
+ STXVD2X (24,(4),(3))
+ addi 4, 4, 16
+ STXVD2X (25,(4),(3))
+ addi 4, 4, 16
+ STXVD2X (26,(4),(3))
+ addi 4, 4, 16
+ STXVD2X (27,(4),(3))
+ addi 4, 4, 16
+ STXVD2X (28,(4),(3))
+ addi 4, 4, 16
+ STXVD2X (29,(4),(3))
+ addi 4, 4, 16
+ STXVD2X (30,(4),(3))
+ addi 4, 4, 16
+ STXVD2X (31,(4),(3))
+ addi 4, 4, 16
+ STXVD2X (32,(4),(3))
+ addi 4, 4, 16
+ STXVD2X (33,(4),(3))
+ addi 4, 4, 16
+ STXVD2X (34,(4),(3))
+ addi 4, 4, 16
+ STXVD2X (35,(4),(3))
+ addi 4, 4, 16
+ STXVD2X (36,(4),(3))
+ addi 4, 4, 16
+ STXVD2X (37,(4),(3))
+ addi 4, 4, 16
+ STXVD2X (38,(4),(3))
+ addi 4, 4, 16
+ STXVD2X (39,(4),(3))
+ addi 4, 4, 16
+ STXVD2X (40,(4),(3))
+ addi 4, 4, 16
+ STXVD2X (41,(4),(3))
+ addi 4, 4, 16
+ STXVD2X (42,(4),(3))
+ addi 4, 4, 16
+ STXVD2X (43,(4),(3))
+ addi 4, 4, 16
+ STXVD2X (44,(4),(3))
+ addi 4, 4, 16
+ STXVD2X (45,(4),(3))
+ addi 4, 4, 16
+ STXVD2X (46,(4),(3))
+ addi 4, 4, 16
+ STXVD2X (47,(4),(3))
+ addi 4, 4, 16
+ STXVD2X (48,(4),(3))
+ addi 4, 4, 16
+ STXVD2X (49,(4),(3))
+ addi 4, 4, 16
+ STXVD2X (50,(4),(3))
+ addi 4, 4, 16
+ STXVD2X (51,(4),(3))
+ addi 4, 4, 16
+ STXVD2X (52,(4),(3))
+ addi 4, 4, 16
+ STXVD2X (53,(4),(3))
+ addi 4, 4, 16
+ STXVD2X (54,(4),(3))
+ addi 4, 4, 16
+ STXVD2X (55,(4),(3))
+ addi 4, 4, 16
+ STXVD2X (56,(4),(3))
+ addi 4, 4, 16
+ STXVD2X (57,(4),(3))
+ addi 4, 4, 16
+ STXVD2X (58,(4),(3))
+ addi 4, 4, 16
+ STXVD2X (59,(4),(3))
+ addi 4, 4, 16
+ STXVD2X (60,(4),(3))
+ addi 4, 4, 16
+ STXVD2X (61,(4),(3))
+ addi 4, 4, 16
+ STXVD2X (62,(4),(3))
+ addi 4, 4, 16
+ STXVD2X (63,(4),(3))
+ blr
+FUNC_END(storevsx)
diff --git a/tools/testing/selftests/powerpc/ptrace/ptrace.h b/tools/testing/selftests/powerpc/ptrace/ptrace.h
index a5efdee..3793ff6 100644
--- a/tools/testing/selftests/powerpc/ptrace/ptrace.h
+++ b/tools/testing/selftests/powerpc/ptrace/ptrace.h
@@ -544,6 +544,125 @@ int write_ckpt_gpr(pid_t child, unsigned long val)
return TEST_PASS;
}
+/* VMX */
+int show_vmx(pid_t child, unsigned long vmx[][2])
+{
+ int ret;
+
+ ret = ptrace(PTRACE_GETVRREGS, child, 0, vmx);
+ if (ret) {
+ perror("ptrace(PTRACE_GETVRREGS) failed");
+ return TEST_FAIL;
+ }
+ return TEST_PASS;
+}
+
+int show_vmx_ckpt(pid_t child, unsigned long vmx[][2])
+{
+ unsigned long regs[34][2];
+ struct iovec iov;
+ int ret;
+
+ iov.iov_base = (u64 *) regs;
+ iov.iov_len = sizeof(regs);
+ ret = ptrace(PTRACE_GETREGSET, child, NT_PPC_TM_CVMX, &iov);
+ if (ret) {
+ perror("ptrace(PTRACE_GETREGSET, NT_PPC_TM_CVMX) failed");
+ return TEST_FAIL;
+ }
+ memcpy(vmx, regs, sizeof(regs));
+ return TEST_PASS;
+}
+
+
+int write_vmx(pid_t child, unsigned long vmx[][2])
+{
+ int ret;
+
+ ret = ptrace(PTRACE_SETVRREGS, child, 0, vmx);
+ if (ret) {
+ perror("ptrace(PTRACE_SETVRREGS) failed");
+ return TEST_FAIL;
+ }
+ return TEST_PASS;
+}
+
+int write_vmx_ckpt(pid_t child, unsigned long vmx[][2])
+{
+ unsigned long regs[34][2];
+ struct iovec iov;
+ int ret;
+
+ memcpy(regs, vmx, sizeof(regs));
+ iov.iov_base = (u64 *) regs;
+ iov.iov_len = sizeof(regs);
+ ret = ptrace(PTRACE_SETREGSET, child, NT_PPC_TM_CVMX, &iov);
+ if (ret) {
+ perror("ptrace(PTRACE_SETREGSET, NT_PPC_TM_CVMX) failed");
+ return TEST_FAIL;
+ }
+ return TEST_PASS;
+}
+
+/* VSX */
+int show_vsx(pid_t child, unsigned long *vsx)
+{
+ int ret;
+
+ ret = ptrace(PTRACE_GETVSRREGS, child, 0, vsx);
+ if (ret) {
+ perror("ptrace(PTRACE_GETVSRREGS) failed");
+ return TEST_FAIL;
+ }
+ return TEST_PASS;
+}
+
+int show_vsx_ckpt(pid_t child, unsigned long *vsx)
+{
+ unsigned long regs[32];
+ struct iovec iov;
+ int ret;
+
+ iov.iov_base = (u64 *) regs;
+ iov.iov_len = sizeof(regs);
+ ret = ptrace(PTRACE_GETREGSET, child, NT_PPC_TM_CVSX, &iov);
+ if (ret) {
+ perror("ptrace(PTRACE_GETREGSET, NT_PPC_TM_CVSX) failed");
+ return TEST_FAIL;
+ }
+ memcpy(vsx, regs, sizeof(regs));
+ return TEST_PASS;
+}
+
+int write_vsx(pid_t child, unsigned long *vsx)
+{
+ int ret;
+
+ ret = ptrace(PTRACE_SETVSRREGS, child, 0, vsx);
+ if (ret) {
+ perror("ptrace(PTRACE_SETVSRREGS) failed");
+ return TEST_FAIL;
+ }
+ return TEST_PASS;
+}
+
+int write_vsx_ckpt(pid_t child, unsigned long *vsx)
+{
+ unsigned long regs[32];
+ struct iovec iov;
+ int ret;
+
+ memcpy(regs, vsx, sizeof(regs));
+ iov.iov_base = (u64 *) regs;
+ iov.iov_len = sizeof(regs);
+ ret = ptrace(PTRACE_SETREGSET, child, NT_PPC_TM_CVSX, &iov);
+ if (ret) {
+ perror("ptrace(PTRACE_SETREGSET, NT_PPC_TM_CVSX) failed");
+ return TEST_FAIL;
+ }
+ return TEST_PASS;
+}
+
/* Analyse TEXASR after TM failure */
inline unsigned long get_tfiar(void)
{
--
2.1.0
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
Powered by blists - more mailing lists