14 files changed, 78 insertions, 48 deletions

diff --git a/arch/powerpc/include/asm/cpm.h b/arch/powerpc/include/asm/cpm.h
index 0835eb977ba9..e50323fe941f 100644
--- a/arch/powerpc/include/asm/cpm.h
+++ b/arch/powerpc/include/asm/cpm.h
@@ -7,6 +7,30 @@
 #include <linux/of.h>
 
 /*
+ * SPI Parameter RAM common to QE and CPM.
+ */
+struct spi_pram {
+	__be16	rbase;	/* Rx Buffer descriptor base address */
+	__be16	tbase;	/* Tx Buffer descriptor base address */
+	u8	rfcr;	/* Rx function code */
+	u8	tfcr;	/* Tx function code */
+	__be16	mrblr;	/* Max receive buffer length */
+	__be32	rstate;	/* Internal */
+	__be32	rdp;	/* Internal */
+	__be16	rbptr;	/* Internal */
+	__be16	rbc;	/* Internal */
+	__be32	rxtmp;	/* Internal */
+	__be32	tstate;	/* Internal */
+	__be32	tdp;	/* Internal */
+	__be16	tbptr;	/* Internal */
+	__be16	tbc;	/* Internal */
+	__be32	txtmp;	/* Internal */
+	__be32	res;	/* Tx temp. */
+	__be16  rpbase;	/* Relocation pointer (CPM1 only) */
+	__be16	res1;	/* Reserved */
+};
+
+/*
  * USB Controller pram common to QE and CPM.
  */
 struct usb_ctlr {
diff --git a/arch/powerpc/include/asm/cpm1.h b/arch/powerpc/include/asm/cpm1.h
index 81b01192f440..bd07650dca56 100644
--- a/arch/powerpc/include/asm/cpm1.h
+++ b/arch/powerpc/include/asm/cpm1.h
@@ -17,6 +17,7 @@
 #ifndef __CPM1__
 #define __CPM1__
 
+#include <linux/init.h>
 #include <asm/8xx_immap.h>
 #include <asm/ptrace.h>
 #include <asm/cpm.h>
@@ -54,7 +55,7 @@ extern cpm8xx_t __iomem *cpmp; /* Pointer to comm processor */
 
 extern void cpm_setbrg(uint brg, uint rate);
 
-extern void cpm_load_patch(cpm8xx_t *cp);
+extern void __init cpm_load_patch(cpm8xx_t *cp);
 
 extern void cpm_reset(void);
 
diff --git a/arch/powerpc/kernel/fsl_booke_entry_mapping.S b/arch/powerpc/kernel/fsl_booke_entry_mapping.S
index beb4d78a2304..a92c79be2728 100644
--- a/arch/powerpc/kernel/fsl_booke_entry_mapping.S
+++ b/arch/powerpc/kernel/fsl_booke_entry_mapping.S
@@ -205,8 +205,7 @@ next_tlb_setup:
 	bdnz+   next_tlb_setup
 
 /* 7. Jump to our 1:1 mapping */
-	li	r6, 0
-
+	mr	r6, r25
 #else
 	#error You need to specify the mapping or not use this at all.
 #endif
@@ -217,7 +216,6 @@ next_tlb_setup:
 1:	mflr	r9
 	rlwimi	r6,r9,0,20,31
 	addi	r6,r6,(2f - 1b)
-	add	r6, r6, r25
 	mtspr	SPRN_SRR0,r6
 	mtspr	SPRN_SRR1,r7
 	rfi				/* start execution out of TLB1[0] entry */
diff --git a/arch/powerpc/sysdev/micropatch.c b/arch/powerpc/sysdev/micropatch.c
index d8d602840757..c0bb76ef7242 100644
--- a/arch/powerpc/sysdev/micropatch.c
+++ b/arch/powerpc/sysdev/micropatch.c
@@ -4,6 +4,7 @@
  * also relocates SMC2, but this would require additional changes
  * to uart.c, so I am holding off on that for a moment.
  */
+#include <linux/init.h>
 #include <linux/errno.h>
 #include <linux/sched.h>
 #include <linux/kernel.h>
@@ -16,6 +17,7 @@
 #include <asm/page.h>
 #include <asm/pgtable.h>
 #include <asm/8xx_immap.h>
+#include <asm/cpm.h>
 #include <asm/cpm1.h>
 
 /*
@@ -24,7 +26,7 @@
 
 #ifdef CONFIG_I2C_SPI_UCODE_PATCH
 
-uint patch_2000[] = {
+static uint patch_2000[] __initdata = {
 	0x7FFFEFD9,
 	0x3FFD0000,
 	0x7FFB49F7,
@@ -143,7 +145,7 @@ uint patch_2000[] = {
 	0x5F8247F8
 };
 
-uint patch_2f00[] = {
+static uint patch_2f00[] __initdata = {
 	0x3E303430,
 	0x34343737,
 	0xABF7BF9B,
@@ -182,7 +184,7 @@ uint patch_2f00[] = {
 
 #ifdef CONFIG_I2C_SPI_SMC1_UCODE_PATCH
 
-uint patch_2000[] = {
+static uint patch_2000[] __initdata = {
 	0x3fff0000,
 	0x3ffd0000,
 	0x3ffb0000,
@@ -505,7 +507,7 @@ uint patch_2000[] = {
 	0x6079e2bb
 };
 
-uint patch_2f00[] = {
+static uint patch_2f00[] __initdata = {
 	0x30303030,
 	0x3e3e3434,
 	0xabbf9b99,
@@ -572,7 +574,7 @@ uint patch_2f00[] = {
 	0xf22f3f23
 };
 
-uint patch_2e00[] = {
+static uint patch_2e00[] __initdata = {
 	0x27eeeeee,
 	0xeeeeeeee,
 	0xeeeeeeee,
@@ -598,7 +600,7 @@ uint patch_2e00[] = {
 
 #ifdef CONFIG_USB_SOF_UCODE_PATCH
 
-uint patch_2000[] = {
+static uint patch_2000[] __initdata = {
 	0x7fff0000,
 	0x7ffd0000,
 	0x7ffb0000,
@@ -613,21 +615,25 @@ uint patch_2000[] = {
 	0x60750000
 };
 
-uint patch_2f00[] = {
+static uint patch_2f00[] __initdata = {
 	0x3030304c,
 	0xcab9e441,
 	0xa1aaf220
 };
 #endif
 
-void
-cpm_load_patch(cpm8xx_t	*cp)
+void __init cpm_load_patch(cpm8xx_t *cp)
 {
 	volatile uint		*dp;		/* Dual-ported RAM. */
 	volatile cpm8xx_t	*commproc;
+#if defined(CONFIG_I2C_SPI_UCODE_PATCH) || \
+    defined(CONFIG_I2C_SPI_SMC1_UCODE_PATCH)
 	volatile iic_t		*iip;
-	volatile spi_t		*spp;
+	volatile struct spi_pram *spp;
+#ifdef CONFIG_I2C_SPI_SMC1_UCODE_PATCH
 	volatile smc_uart_t	*smp;
+#endif
+#endif
 	int	i;
 
 	commproc = cp;
@@ -668,8 +674,8 @@ cpm_load_patch(cpm8xx_t	*cp)
 	/* Put SPI above the IIC, also 32-byte aligned.
 	*/
 	i = (RPBASE + sizeof(iic_t) + 31) & ~31;
-	spp = (spi_t *)&commproc->cp_dparam[PROFF_SPI];
-	spp->spi_rpbase = i;
+	spp = (struct spi_pram *)&commproc->cp_dparam[PROFF_SPI];
+	spp->rpbase = i;
 
 # if defined(CONFIG_I2C_SPI_UCODE_PATCH)
 	commproc->cp_cpmcr1 = 0x802a;
diff --git a/arch/x86/include/asm/x86_init.h b/arch/x86/include/asm/x86_init.h
index 519b54327d75..baa579c8e038 100644
--- a/arch/x86/include/asm/x86_init.h
+++ b/arch/x86/include/asm/x86_init.h
@@ -142,6 +142,7 @@ struct x86_cpuinit_ops {
  * @set_wallclock:		set time back to HW clock
  * @is_untracked_pat_range	exclude from PAT logic
  * @nmi_init			enable NMI on cpus
+ * @i8042_detect		pre-detect if i8042 controller exists
  */
 struct x86_platform_ops {
 	unsigned long (*calibrate_tsc)(void);
@@ -150,6 +151,7 @@ struct x86_platform_ops {
 	void (*iommu_shutdown)(void);
 	bool (*is_untracked_pat_range)(u64 start, u64 end);
 	void (*nmi_init)(void);
+	int (*i8042_detect)(void);
 };
 
 extern struct x86_init_ops x86_init;
diff --git a/arch/x86/kernel/mrst.c b/arch/x86/kernel/mrst.c
index e796448f0eb5..5915e0b33303 100644
--- a/arch/x86/kernel/mrst.c
+++ b/arch/x86/kernel/mrst.c
@@ -216,6 +216,12 @@ static void __init mrst_setup_boot_clock(void)
 		setup_boot_APIC_clock();
 };
 
+/* MID systems don't have i8042 controller */
+static int mrst_i8042_detect(void)
+{
+	return 0;
+}
+
 /*
  * Moorestown specific x86_init function overrides and early setup
  * calls.
@@ -233,6 +239,7 @@ void __init x86_mrst_early_setup(void)
 	x86_cpuinit.setup_percpu_clockev = mrst_setup_secondary_clock;
 
 	x86_platform.calibrate_tsc = mrst_calibrate_tsc;
+	x86_platform.i8042_detect = mrst_i8042_detect;
 	x86_init.pci.init = pci_mrst_init;
 	x86_init.pci.fixup_irqs = x86_init_noop;
 
diff --git a/arch/x86/kernel/x86_init.c b/arch/x86/kernel/x86_init.c
index 61a1e8c7e19f..cd6da6bf3eca 100644
--- a/arch/x86/kernel/x86_init.c
+++ b/arch/x86/kernel/x86_init.c
@@ -5,6 +5,7 @@
  */
 #include <linux/init.h>
 #include <linux/ioport.h>
+#include <linux/module.h>
 
 #include <asm/bios_ebda.h>
 #include <asm/paravirt.h>
@@ -85,6 +86,7 @@ struct x86_cpuinit_ops x86_cpuinit __cpuinitdata = {
 };
 
 static void default_nmi_init(void) { };
+static int default_i8042_detect(void) { return 1; };
 
 struct x86_platform_ops x86_platform = {
 	.calibrate_tsc			= native_calibrate_tsc,
@@ -92,5 +94,8 @@ struct x86_platform_ops x86_platform = {
 	.set_wallclock			= mach_set_rtc_mmss,
 	.iommu_shutdown			= iommu_shutdown_noop,
 	.is_untracked_pat_range		= is_ISA_range,
-	.nmi_init			= default_nmi_init
+	.nmi_init			= default_nmi_init,
+	.i8042_detect			= default_i8042_detect
 };
+
+EXPORT_SYMBOL_GPL(x86_platform);
diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c
index a6f695d76928..3699613e8830 100644
--- a/arch/x86/kvm/mmu.c
+++ b/arch/x86/kvm/mmu.c
@@ -1879,6 +1879,8 @@ static void mmu_set_spte(struct kvm_vcpu *vcpu, u64 *sptep,
 			pgprintk("hfn old %lx new %lx\n",
 				 spte_to_pfn(*sptep), pfn);
 			rmap_remove(vcpu->kvm, sptep);
+			__set_spte(sptep, shadow_trap_nonpresent_pte);
+			kvm_flush_remote_tlbs(vcpu->kvm);
 		} else
 			was_rmapped = 1;
 	}
diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index 859a01a07dbf..ee03679efe78 100644
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
@@ -1744,18 +1744,15 @@ static void enter_lmode(struct kvm_vcpu *vcpu)
 			     (guest_tr_ar & ~AR_TYPE_MASK)
 			     | AR_TYPE_BUSY_64_TSS);
 	}
-	vcpu->arch.efer |= EFER_LMA;
-	vmx_set_efer(vcpu, vcpu->arch.efer);
+	vmx_set_efer(vcpu, vcpu->arch.efer | EFER_LMA);
 }
 
 static void exit_lmode(struct kvm_vcpu *vcpu)
 {
-	vcpu->arch.efer &= ~EFER_LMA;
-
 	vmcs_write32(VM_ENTRY_CONTROLS,
 		     vmcs_read32(VM_ENTRY_CONTROLS)
 		     & ~VM_ENTRY_IA32E_MODE);
-	vmx_set_efer(vcpu, vcpu->arch.efer);
+	vmx_set_efer(vcpu, vcpu->arch.efer & ~EFER_LMA);
 }
 
 #endif
diff --git a/drivers/input/keyboard/Kconfig b/drivers/input/keyboard/Kconfig
index 0f9a4785d798..3525f533e186 100644
--- a/drivers/input/keyboard/Kconfig
+++ b/drivers/input/keyboard/Kconfig
@@ -69,11 +69,11 @@ config KEYBOARD_ATARI
 	  module will be called atakbd.
 
 config KEYBOARD_ATKBD
-	tristate "AT keyboard" if EMBEDDED || !X86 || X86_MRST
+	tristate "AT keyboard" if EMBEDDED || !X86
 	default y
 	select SERIO
 	select SERIO_LIBPS2
-	select SERIO_I8042 if X86 && !X86_MRST
+	select SERIO_I8042 if X86
 	select SERIO_GSCPS2 if GSC
 	help
 	  Say Y here if you want to use a standard AT or PS/2 keyboard. Usually
diff --git a/drivers/input/mouse/Kconfig b/drivers/input/mouse/Kconfig
index eeb58c1cac16..c714ca2407f8 100644
--- a/drivers/input/mouse/Kconfig
+++ b/drivers/input/mouse/Kconfig
@@ -17,7 +17,7 @@ config MOUSE_PS2
 	default y
 	select SERIO
 	select SERIO_LIBPS2
-	select SERIO_I8042 if X86 && !X86_MRST
+	select SERIO_I8042 if X86
 	select SERIO_GSCPS2 if GSC
 	help
 	  Say Y here if you have a PS/2 mouse connected to your system. This
diff --git a/drivers/input/serio/Kconfig b/drivers/input/serio/Kconfig
index 256b9e9394dc..3bfe8fafc6ad 100644
--- a/drivers/input/serio/Kconfig
+++ b/drivers/input/serio/Kconfig
@@ -22,7 +22,7 @@ config SERIO_I8042
 	tristate "i8042 PC Keyboard controller" if EMBEDDED || !X86
 	default y
 	depends on !PARISC && (!ARM || ARCH_SHARK || FOOTBRIDGE_HOST) && \
-		   (!SUPERH || SH_CAYMAN) && !M68K && !BLACKFIN && !X86_MRST
+		   (!SUPERH || SH_CAYMAN) && !M68K && !BLACKFIN
 	help
 	  i8042 is the chip over which the standard AT keyboard and PS/2
 	  mouse are connected to the computer. If you use these devices,
diff --git a/drivers/input/serio/i8042-x86ia64io.h b/drivers/input/serio/i8042-x86ia64io.h
index 6168469ad1a6..81003c4739f4 100644
--- a/drivers/input/serio/i8042-x86ia64io.h
+++ b/drivers/input/serio/i8042-x86ia64io.h
@@ -7,6 +7,10 @@
  * the Free Software Foundation.
  */
 
+#ifdef CONFIG_X86
+#include <asm/x86_init.h>
+#endif
+
 /*
  * Names.
  */
@@ -840,6 +844,12 @@ static int __init i8042_platform_init(void)
 {
 	int retval;
 
+#ifdef CONFIG_X86
+	/* Just return if pre-detection shows no i8042 controller exist */
+	if (!x86_platform.i8042_detect())
+		return -ENODEV;
+#endif
+
 /*
  * On ix86 platforms touching the i8042 data register region can do really
  * bad things. Because of this the region is always reserved on ix86 boxes.
diff --git a/drivers/spi/spi_mpc8xxx.c b/drivers/spi/spi_mpc8xxx.c
index ffa111a7e9d4..97ab0a81338a 100644
--- a/drivers/spi/spi_mpc8xxx.c
+++ b/drivers/spi/spi_mpc8xxx.c
@@ -66,28 +66,6 @@ struct mpc8xxx_spi_reg {
 	__be32 receive;
 };
 
-/* SPI Parameter RAM */
-struct spi_pram {
-	__be16	rbase;	/* Rx Buffer descriptor base address */
-	__be16	tbase;	/* Tx Buffer descriptor base address */
-	u8	rfcr;	/* Rx function code */
-	u8	tfcr;	/* Tx function code */
-	__be16	mrblr;	/* Max receive buffer length */
-	__be32	rstate;	/* Internal */
-	__be32	rdp;	/* Internal */
-	__be16	rbptr;	/* Internal */
-	__be16	rbc;	/* Internal */
-	__be32	rxtmp;	/* Internal */
-	__be32	tstate;	/* Internal */
-	__be32	tdp;	/* Internal */
-	__be16	tbptr;	/* Internal */
-	__be16	tbc;	/* Internal */
-	__be32	txtmp;	/* Internal */
-	__be32	res;	/* Tx temp. */
-	__be16  rpbase;	/* Relocation pointer (CPM1 only) */
-	__be16	res1;	/* Reserved */
-};
-
 /* SPI Controller mode register definitions */
 #define	SPMODE_LOOP		(1 << 30)
 #define	SPMODE_CI_INACTIVEHIGH	(1 << 29)