Merge tag 'v3.10' into sdk-kernel-3.10

git rebase --continue

Linux 3.10

Conflicts:
	Documentation/virtual/kvm/api.txt
	arch/ia64/kvm/Makefile
	arch/powerpc/Kconfig
	arch/powerpc/Makefile
	arch/powerpc/boot/dts/b4420qds.dts
	arch/powerpc/boot/dts/b4860qds.dts
	arch/powerpc/boot/dts/b4qds.dts
	arch/powerpc/boot/dts/fsl/b4420si-post.dtsi
	arch/powerpc/boot/dts/fsl/b4420si-pre.dtsi
	arch/powerpc/boot/dts/fsl/b4860si-post.dtsi
	arch/powerpc/boot/dts/fsl/b4860si-pre.dtsi
	arch/powerpc/boot/dts/fsl/b4si-post.dtsi
	arch/powerpc/boot/dts/fsl/p1010si-post.dtsi
	arch/powerpc/boot/dts/fsl/p2041si-post.dtsi
	arch/powerpc/boot/dts/fsl/p3041si-post.dtsi
	arch/powerpc/boot/dts/fsl/p4080si-post.dtsi
	arch/powerpc/boot/dts/fsl/p5020si-post.dtsi
	arch/powerpc/boot/dts/fsl/p5040si-post.dtsi
	arch/powerpc/boot/dts/fsl/qonverge-usb2-dr-0.dtsi
	arch/powerpc/boot/dts/fsl/qoriq-sec5.0-0.dtsi
	arch/powerpc/boot/dts/fsl/t4240si-post.dtsi
	arch/powerpc/boot/dts/fsl/t4240si-pre.dtsi
	arch/powerpc/boot/dts/p1025rdb_36b.dts
	arch/powerpc/boot/dts/t4240qds.dts
	arch/powerpc/configs/corenet64_smp_defconfig
	arch/powerpc/configs/mpc85xx_defconfig
	arch/powerpc/configs/mpc85xx_smp_defconfig
	arch/powerpc/include/asm/cputable.h
	arch/powerpc/include/asm/kvm_host.h
	arch/powerpc/include/asm/kvm_ppc.h
	arch/powerpc/include/asm/machdep.h
	arch/powerpc/include/uapi/asm/kvm.h
	arch/powerpc/kernel/cpu_setup_fsl_booke.S
	arch/powerpc/kernel/cputable.c
	arch/powerpc/kernel/idle.c
	arch/powerpc/kernel/pci-common.c
	arch/powerpc/kvm/Kconfig
	arch/powerpc/kvm/book3s.c
	arch/powerpc/kvm/booke.c
	arch/powerpc/kvm/e500.c
	arch/powerpc/kvm/e500_mmu.c
	arch/powerpc/kvm/e500_mmu_host.c
	arch/powerpc/kvm/e500mc.c
	arch/powerpc/kvm/emulate.c
	arch/powerpc/kvm/irq.h
	arch/powerpc/kvm/mpic.c
	arch/powerpc/kvm/powerpc.c
	arch/powerpc/mm/tlb_nohash.c
	arch/powerpc/platforms/85xx/Kconfig
	arch/powerpc/platforms/85xx/b4_qds.c
	arch/powerpc/platforms/85xx/t4240_qds.c
	arch/powerpc/platforms/pseries/smp.c
	arch/powerpc/sysdev/fsl_85xx_l2ctlr.c
	arch/powerpc/sysdev/fsl_msi.c
	arch/powerpc/sysdev/fsl_pci.c
	arch/powerpc/sysdev/fsl_pci.h
	arch/powerpc/sysdev/mpic.c
	arch/x86/kvm/Makefile
	arch/x86/kvm/x86.c
	drivers/Kconfig
	drivers/clk/Kconfig
	drivers/cpufreq/Makefile
	drivers/crypto/caam/caamalg.c
	drivers/crypto/caam/intern.h
	drivers/crypto/caam/jr.c
	drivers/crypto/caam/regs.h
	drivers/infiniband/ulp/ipoib/ipoib_ethtool.c
	drivers/iommu/Makefile
	drivers/iommu/amd_iommu.c
	drivers/iommu/exynos-iommu.c
	drivers/iommu/intel-iommu.c
	drivers/iommu/iommu.c
	drivers/iommu/msm_iommu.c
	drivers/iommu/omap-iommu.c
	drivers/iommu/tegra-gart.c
	drivers/iommu/tegra-smmu.c
	drivers/misc/Makefile
	drivers/mmc/card/block.c
	drivers/mmc/card/queue.c
	drivers/mmc/core/core.c
	drivers/mtd/nand/fsl_ifc_nand.c
	drivers/net/ethernet/3com/3c501.c
	drivers/net/ethernet/8390/3c503.c
	drivers/net/ethernet/dec/ewrk3.c
	drivers/net/ethernet/freescale/fec.c
	drivers/net/ethernet/freescale/gianfar.c
	drivers/net/ethernet/freescale/gianfar.h
	drivers/net/ethernet/i825xx/3c505.c
	drivers/net/ethernet/i825xx/3c507.c
	drivers/rtc/rtc-ds3232.c
	drivers/s390/net/qeth_core_main.c
	drivers/staging/Kconfig
	drivers/staging/Makefile
	drivers/staging/ccg/u_ether.c
	drivers/usb/gadget/fsl_udc_core.c
	drivers/usb/otg/fsl_otg.c
	drivers/vfio/vfio.c
	drivers/watchdog/Kconfig
	include/linux/iommu.h
	include/linux/kvm_host.h
	include/linux/mmc/sdhci.h
	include/linux/msi.h
	include/linux/netdev_features.h
	include/linux/pci.h
	include/linux/skbuff.h
	include/net/ip6_route.h
	include/net/sch_generic.h
	include/net/xfrm.h
	include/uapi/linux/kvm.h
	net/core/netpoll.c
	virt/kvm/irqchip.c
	virt/kvm/kvm_main.c

1 files changed, 83 insertions, 35 deletions

diff --git a/arch/powerpc/kernel/ptrace.c b/arch/powerpc/kernel/ptrace.c
index c497000..98c2fc1 100644
--- a/arch/powerpc/kernel/ptrace.c
+++ b/arch/powerpc/kernel/ptrace.c
@@ -32,6 +32,7 @@
 #include <trace/syscall.h>
 #include <linux/hw_breakpoint.h>
 #include <linux/perf_event.h>
+#include <linux/context_tracking.h>
 
 #include <asm/uaccess.h>
 #include <asm/page.h>
@@ -179,6 +180,31 @@ static int set_user_msr(struct task_struct *task, unsigned long msr)
 	return 0;
 }
 
+#ifdef CONFIG_PPC64
+static int get_user_dscr(struct task_struct *task, unsigned long *data)
+{
+	*data = task->thread.dscr;
+	return 0;
+}
+
+static int set_user_dscr(struct task_struct *task, unsigned long dscr)
+{
+	task->thread.dscr = dscr;
+	task->thread.dscr_inherit = 1;
+	return 0;
+}
+#else
+static int get_user_dscr(struct task_struct *task, unsigned long *data)
+{
+	return -EIO;
+}
+
+static int set_user_dscr(struct task_struct *task, unsigned long dscr)
+{
+	return -EIO;
+}
+#endif
+
 /*
  * We prevent mucking around with the reserved area of trap
  * which are used internally by the kernel.
@@ -192,16 +218,23 @@ static int set_user_trap(struct task_struct *task, unsigned long trap)
 /*
  * Get contents of register REGNO in task TASK.
  */
-unsigned long ptrace_get_reg(struct task_struct *task, int regno)
+int ptrace_get_reg(struct task_struct *task, int regno, unsigned long *data)
 {
-	if (task->thread.regs == NULL)
+	if ((task->thread.regs == NULL) || !data)
 		return -EIO;
 
-	if (regno == PT_MSR)
-		return get_user_msr(task);
+	if (regno == PT_MSR) {
+		*data = get_user_msr(task);
+		return 0;
+	}
 
-	if (regno < (sizeof(struct pt_regs) / sizeof(unsigned long)))
-		return ((unsigned long *)task->thread.regs)[regno];
+	if (regno == PT_DSCR)
+		return get_user_dscr(task, data);
+
+	if (regno < (sizeof(struct pt_regs) / sizeof(unsigned long))) {
+		*data = ((unsigned long *)task->thread.regs)[regno];
+		return 0;
+	}
 
 	return -EIO;
 }
@@ -218,6 +251,8 @@ int ptrace_put_reg(struct task_struct *task, int regno, unsigned long data)
 		return set_user_msr(task, data);
 	if (regno == PT_TRAP)
 		return set_user_trap(task, data);
+	if (regno == PT_DSCR)
+		return set_user_dscr(task, data);
 
 	if (regno <= PT_MAX_PUT_REG) {
 		((unsigned long *)task->thread.regs)[regno] = data;
@@ -905,6 +940,9 @@ int ptrace_set_debugreg(struct task_struct *task, unsigned long addr,
 	struct perf_event *bp;
 	struct perf_event_attr attr;
 #endif /* CONFIG_HAVE_HW_BREAKPOINT */
+#ifndef CONFIG_PPC_ADV_DEBUG_REGS
+	struct arch_hw_breakpoint hw_brk;
+#endif
 
 	/* For ppc64 we support one DABR and no IABR's at the moment (ppc64).
 	 *  For embedded processors we support one DAC and no IAC's at the
@@ -931,14 +969,17 @@ int ptrace_set_debugreg(struct task_struct *task, unsigned long addr,
 	 */
 
 	/* Ensure breakpoint translation bit is set */
-	if (data && !(data & DABR_TRANSLATION))
+	if (data && !(data & HW_BRK_TYPE_TRANSLATE))
 		return -EIO;
+	hw_brk.address = data & (~HW_BRK_TYPE_DABR);
+	hw_brk.type = (data & HW_BRK_TYPE_DABR) | HW_BRK_TYPE_PRIV_ALL;
+	hw_brk.len = 8;
 #ifdef CONFIG_HAVE_HW_BREAKPOINT
 	if (ptrace_get_breakpoints(task) < 0)
 		return -ESRCH;
 
 	bp = thread->ptrace_bps[0];
-	if ((!data) || !(data & (DABR_DATA_WRITE | DABR_DATA_READ))) {
+	if ((!data) || !(hw_brk.type & HW_BRK_TYPE_RDWR)) {
 		if (bp) {
 			unregister_hw_breakpoint(bp);
 			thread->ptrace_bps[0] = NULL;
@@ -948,10 +989,8 @@ int ptrace_set_debugreg(struct task_struct *task, unsigned long addr,
 	}
 	if (bp) {
 		attr = bp->attr;
-		attr.bp_addr = data & ~HW_BREAKPOINT_ALIGN;
-		arch_bp_generic_fields(data &
-					(DABR_DATA_WRITE | DABR_DATA_READ),
-							&attr.bp_type);
+		attr.bp_addr = hw_brk.address;
+		arch_bp_generic_fields(hw_brk.type, &attr.bp_type);
 
 		/* Enable breakpoint */
 		attr.disabled = false;
@@ -963,16 +1002,15 @@ int ptrace_set_debugreg(struct task_struct *task, unsigned long addr,
 		}
 		thread->ptrace_bps[0] = bp;
 		ptrace_put_breakpoints(task);
-		thread->dabr = data;
-		thread->dabrx = DABRX_ALL;
+		thread->hw_brk = hw_brk;
 		return 0;
 	}
 
 	/* Create a new breakpoint request if one doesn't exist already */
 	hw_breakpoint_init(&attr);
-	attr.bp_addr = data & ~HW_BREAKPOINT_ALIGN;
-	arch_bp_generic_fields(data & (DABR_DATA_WRITE | DABR_DATA_READ),
-								&attr.bp_type);
+	attr.bp_addr = hw_brk.address;
+	arch_bp_generic_fields(hw_brk.type,
+			       &attr.bp_type);
 
 	thread->ptrace_bps[0] = bp = register_user_hw_breakpoint(&attr,
 					       ptrace_triggered, NULL, task);
@@ -985,10 +1023,7 @@ int ptrace_set_debugreg(struct task_struct *task, unsigned long addr,
 	ptrace_put_breakpoints(task);
 
 #endif /* CONFIG_HAVE_HW_BREAKPOINT */
-
-	/* Move contents to the DABR register */
-	task->thread.dabr = data;
-	task->thread.dabrx = DABRX_ALL;
+	task->thread.hw_brk = hw_brk;
 #else /* CONFIG_PPC_ADV_DEBUG_REGS */
 	/* As described above, it was assumed 3 bits were passed with the data
 	 *  address, but we will assume only the mode bits will be passed
@@ -1349,7 +1384,7 @@ static long ppc_set_hwdebug(struct task_struct *child,
 	struct perf_event_attr attr;
 #endif /* CONFIG_HAVE_HW_BREAKPOINT */
 #ifndef CONFIG_PPC_ADV_DEBUG_REGS
-	unsigned long dabr;
+	struct arch_hw_breakpoint brk;
 #endif
 
 	if (bp_info->version != 1)
@@ -1397,12 +1432,13 @@ static long ppc_set_hwdebug(struct task_struct *child,
 	if ((unsigned long)bp_info->addr >= TASK_SIZE)
 		return -EIO;
 
-	dabr = (unsigned long)bp_info->addr & ~7UL;
-	dabr |= DABR_TRANSLATION;
+	brk.address = bp_info->addr & ~7UL;
+	brk.type = HW_BRK_TYPE_TRANSLATE;
+	brk.len = 8;
 	if (bp_info->trigger_type & PPC_BREAKPOINT_TRIGGER_READ)
-		dabr |= DABR_DATA_READ;
+		brk.type |= HW_BRK_TYPE_READ;
 	if (bp_info->trigger_type & PPC_BREAKPOINT_TRIGGER_WRITE)
-		dabr |= DABR_DATA_WRITE;
+		brk.type |= HW_BRK_TYPE_WRITE;
 #ifdef CONFIG_HAVE_HW_BREAKPOINT
 	if (ptrace_get_breakpoints(child) < 0)
 		return -ESRCH;
@@ -1427,8 +1463,7 @@ static long ppc_set_hwdebug(struct task_struct *child,
 	hw_breakpoint_init(&attr);
 	attr.bp_addr = (unsigned long)bp_info->addr & ~HW_BREAKPOINT_ALIGN;
 	attr.bp_len = len;
-	arch_bp_generic_fields(dabr & (DABR_DATA_WRITE | DABR_DATA_READ),
-								&attr.bp_type);
+	arch_bp_generic_fields(brk.type, &attr.bp_type);
 
 	thread->ptrace_bps[0] = bp = register_user_hw_breakpoint(&attr,
 					       ptrace_triggered, NULL, child);
@@ -1445,11 +1480,10 @@ static long ppc_set_hwdebug(struct task_struct *child,
 	if (bp_info->addr_mode != PPC_BREAKPOINT_MODE_EXACT)
 		return -EINVAL;
 
-	if (child->thread.dabr)
+	if (child->thread.hw_brk.address)
 		return -ENOSPC;
 
-	child->thread.dabr = dabr;
-	child->thread.dabrx = DABRX_ALL;
+	child->thread.hw_brk = brk;
 
 	return 1;
 #endif /* !CONFIG_PPC_ADV_DEBUG_DVCS */
@@ -1495,10 +1529,11 @@ static long ppc_del_hwdebug(struct task_struct *child, long data)
 	ptrace_put_breakpoints(child);
 	return ret;
 #else /* CONFIG_HAVE_HW_BREAKPOINT */
-	if (child->thread.dabr == 0)
+	if (child->thread.hw_brk.address == 0)
 		return -ENOENT;
 
-	child->thread.dabr = 0;
+	child->thread.hw_brk.address = 0;
+	child->thread.hw_brk.type = 0;
 #endif /* CONFIG_HAVE_HW_BREAKPOINT */
 
 	return 0;
@@ -1531,7 +1566,9 @@ long arch_ptrace(struct task_struct *child, long request,
 
 		CHECK_FULL_REGS(child->thread.regs);
 		if (index < PT_FPR0) {
-			tmp = ptrace_get_reg(child, (int) index);
+			ret = ptrace_get_reg(child, (int) index, &tmp);
+			if (ret)
+				break;
 		} else {
 			unsigned int fpidx = index - PT_FPR0;
 
@@ -1608,6 +1645,8 @@ long arch_ptrace(struct task_struct *child, long request,
 		dbginfo.sizeof_condition = 0;
 #ifdef CONFIG_HAVE_HW_BREAKPOINT
 		dbginfo.features = PPC_DEBUG_FEATURE_DATA_BP_RANGE;
+		if (cpu_has_feature(CPU_FTR_DAWR))
+			dbginfo.features |= PPC_DEBUG_FEATURE_DATA_BP_DAWR;
 #else
 		dbginfo.features = 0;
 #endif /* CONFIG_HAVE_HW_BREAKPOINT */
@@ -1642,6 +1681,9 @@ long arch_ptrace(struct task_struct *child, long request,
 	}
 
 	case PTRACE_GET_DEBUGREG: {
+#ifndef CONFIG_PPC_ADV_DEBUG_REGS
+		unsigned long dabr_fake;
+#endif
 		ret = -EINVAL;
 		/* We only support one DABR and no IABRS at the moment */
 		if (addr > 0)
@@ -1649,7 +1691,9 @@ long arch_ptrace(struct task_struct *child, long request,
 #ifdef CONFIG_PPC_ADV_DEBUG_REGS
 		ret = put_user(child->thread.dac1, datalp);
 #else
-		ret = put_user(child->thread.dabr, datalp);
+		dabr_fake = ((child->thread.hw_brk.address & (~HW_BRK_TYPE_DABR)) |
+			     (child->thread.hw_brk.type & HW_BRK_TYPE_DABR));
+		ret = put_user(dabr_fake, datalp);
 #endif
 		break;
 	}
@@ -1745,6 +1789,8 @@ long do_syscall_trace_enter(struct pt_regs *regs)
 {
 	long ret = 0;
 
+	user_exit();
+
 	secure_computing_strict(regs->gpr[0]);
 
 	if (test_thread_flag(TIF_SYSCALL_TRACE) &&
@@ -1789,4 +1835,6 @@ void do_syscall_trace_leave(struct pt_regs *regs)
 	step = test_thread_flag(TIF_SINGLESTEP);
 	if (step || test_thread_flag(TIF_SYSCALL_TRACE))
 		tracehook_report_syscall_exit(regs, step);
+
+	user_enter();
 }