| 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
| ||
|
Date: Wed, 27 Jan 2010 00:33:07 -0800
From: "H. Peter Anvin" <hpa@...or.com>
To: Linus Torvalds <torvalds@...ux-foundation.org>
Cc: Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
"H. Peter Anvin" <hpa@...or.com>, Ingo Molnar <mingo@...e.hu>,
Thomas Gleixner <tglx@...utronix.de>,
Dean Nelson <dnelson@...hat.com>, Russ Anderson <rja@....com>,
ozan@...dus.org.tr, Jaswinder Singh Rajput <jaswinder@...nel.org>,
"Rafael J. Wysocki" <rjw@...k.pl>, Yinghai Lu <yinghai@...nel.org>,
Gene Heskett <gene.heskett@...izon.net>,
Andreas Herrmann <andreas.herrmann3@....com>,
Mark Hounschell <markh@...pro.net>,
Venkatesh Pallipadi <venkatesh.pallipadi@...el.com>,
David Rientjes <rientjes@...gle.com>,
Haicheng Li <haicheng.li@...ux.intel.com>
Subject: [GIT PULL] x86 fixes for 2.6.33-rc6
The following changes since commit b04da8bfdfbbd79544cab2fadfdc12e87eb01600:
Greg Kroah-Hartman (1):
fnctl: f_modown should call write_lock_irqsave/restore
are available in the git repository at:
git://git.kernel.org/pub/scm/linux/kernel/x86/linux-2.6-tip.git x86-fixes-for-linus
Andreas Herrmann (1):
Revert "x86: ucode-amd: Load ucode-patches once ..."
David Rientjes (1):
x86: Set hotpluggable nodes in nodes_possible_map
H. Peter Anvin (1):
x86: Remove "x86 CPU features in debugfs" (CONFIG_X86_CPU_DEBUG)
Pallipadi, Venkatesh (1):
x86: Disable HPET MSI on ATI SB700/SB800
Russ Anderson (1):
x86, msr/cpuid: Pass the number of minors when unregistering MSR and CPUID drivers.
arch/x86/Kconfig | 6 -
arch/x86/include/asm/cpu_debug.h | 127 -------
arch/x86/include/asm/hpet.h | 1 +
arch/x86/include/asm/microcode.h | 2 -
arch/x86/kernel/cpu/Makefile | 2 -
arch/x86/kernel/cpu/cpu_debug.c | 688 --------------------------------------
arch/x86/kernel/cpuid.c | 2 +-
arch/x86/kernel/hpet.c | 8 +
arch/x86/kernel/microcode_amd.c | 44 +--
arch/x86/kernel/microcode_core.c | 6 -
arch/x86/kernel/msr.c | 2 +-
arch/x86/kernel/quirks.c | 13 +
arch/x86/mm/srat_64.c | 4 +-
13 files changed, 40 insertions(+), 865 deletions(-)
delete mode 100644 arch/x86/include/asm/cpu_debug.h
delete mode 100644 arch/x86/kernel/cpu/cpu_debug.c
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index cbcbfde..eb40925 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -989,12 +989,6 @@ config X86_CPUID
with major 203 and minors 0 to 31 for /dev/cpu/0/cpuid to
/dev/cpu/31/cpuid.
-config X86_CPU_DEBUG
- tristate "/sys/kernel/debug/x86/cpu/* - CPU Debug support"
- ---help---
- If you select this option, this will provide various x86 CPUs
- information through debugfs.
-
choice
prompt "High Memory Support"
default HIGHMEM4G if !X86_NUMAQ
diff --git a/arch/x86/include/asm/cpu_debug.h b/arch/x86/include/asm/cpu_debug.h
deleted file mode 100644
index d96c1ee..0000000
--- a/arch/x86/include/asm/cpu_debug.h
+++ /dev/null
@@ -1,127 +0,0 @@
-#ifndef _ASM_X86_CPU_DEBUG_H
-#define _ASM_X86_CPU_DEBUG_H
-
-/*
- * CPU x86 architecture debug
- *
- * Copyright(C) 2009 Jaswinder Singh Rajput
- */
-
-/* Register flags */
-enum cpu_debug_bit {
-/* Model Specific Registers (MSRs) */
- CPU_MC_BIT, /* Machine Check */
- CPU_MONITOR_BIT, /* Monitor */
- CPU_TIME_BIT, /* Time */
- CPU_PMC_BIT, /* Performance Monitor */
- CPU_PLATFORM_BIT, /* Platform */
- CPU_APIC_BIT, /* APIC */
- CPU_POWERON_BIT, /* Power-on */
- CPU_CONTROL_BIT, /* Control */
- CPU_FEATURES_BIT, /* Features control */
- CPU_LBRANCH_BIT, /* Last Branch */
- CPU_BIOS_BIT, /* BIOS */
- CPU_FREQ_BIT, /* Frequency */
- CPU_MTTR_BIT, /* MTRR */
- CPU_PERF_BIT, /* Performance */
- CPU_CACHE_BIT, /* Cache */
- CPU_SYSENTER_BIT, /* Sysenter */
- CPU_THERM_BIT, /* Thermal */
- CPU_MISC_BIT, /* Miscellaneous */
- CPU_DEBUG_BIT, /* Debug */
- CPU_PAT_BIT, /* PAT */
- CPU_VMX_BIT, /* VMX */
- CPU_CALL_BIT, /* System Call */
- CPU_BASE_BIT, /* BASE Address */
- CPU_VER_BIT, /* Version ID */
- CPU_CONF_BIT, /* Configuration */
- CPU_SMM_BIT, /* System mgmt mode */
- CPU_SVM_BIT, /*Secure Virtual Machine*/
- CPU_OSVM_BIT, /* OS-Visible Workaround*/
-/* Standard Registers */
- CPU_TSS_BIT, /* Task Stack Segment */
- CPU_CR_BIT, /* Control Registers */
- CPU_DT_BIT, /* Descriptor Table */
-/* End of Registers flags */
- CPU_REG_ALL_BIT, /* Select all Registers */
-};
-
-#define CPU_REG_ALL (~0) /* Select all Registers */
-
-#define CPU_MC (1 << CPU_MC_BIT)
-#define CPU_MONITOR (1 << CPU_MONITOR_BIT)
-#define CPU_TIME (1 << CPU_TIME_BIT)
-#define CPU_PMC (1 << CPU_PMC_BIT)
-#define CPU_PLATFORM (1 << CPU_PLATFORM_BIT)
-#define CPU_APIC (1 << CPU_APIC_BIT)
-#define CPU_POWERON (1 << CPU_POWERON_BIT)
-#define CPU_CONTROL (1 << CPU_CONTROL_BIT)
-#define CPU_FEATURES (1 << CPU_FEATURES_BIT)
-#define CPU_LBRANCH (1 << CPU_LBRANCH_BIT)
-#define CPU_BIOS (1 << CPU_BIOS_BIT)
-#define CPU_FREQ (1 << CPU_FREQ_BIT)
-#define CPU_MTRR (1 << CPU_MTTR_BIT)
-#define CPU_PERF (1 << CPU_PERF_BIT)
-#define CPU_CACHE (1 << CPU_CACHE_BIT)
-#define CPU_SYSENTER (1 << CPU_SYSENTER_BIT)
-#define CPU_THERM (1 << CPU_THERM_BIT)
-#define CPU_MISC (1 << CPU_MISC_BIT)
-#define CPU_DEBUG (1 << CPU_DEBUG_BIT)
-#define CPU_PAT (1 << CPU_PAT_BIT)
-#define CPU_VMX (1 << CPU_VMX_BIT)
-#define CPU_CALL (1 << CPU_CALL_BIT)
-#define CPU_BASE (1 << CPU_BASE_BIT)
-#define CPU_VER (1 << CPU_VER_BIT)
-#define CPU_CONF (1 << CPU_CONF_BIT)
-#define CPU_SMM (1 << CPU_SMM_BIT)
-#define CPU_SVM (1 << CPU_SVM_BIT)
-#define CPU_OSVM (1 << CPU_OSVM_BIT)
-#define CPU_TSS (1 << CPU_TSS_BIT)
-#define CPU_CR (1 << CPU_CR_BIT)
-#define CPU_DT (1 << CPU_DT_BIT)
-
-/* Register file flags */
-enum cpu_file_bit {
- CPU_INDEX_BIT, /* index */
- CPU_VALUE_BIT, /* value */
-};
-
-#define CPU_FILE_VALUE (1 << CPU_VALUE_BIT)
-
-#define MAX_CPU_FILES 512
-
-struct cpu_private {
- unsigned cpu;
- unsigned type;
- unsigned reg;
- unsigned file;
-};
-
-struct cpu_debug_base {
- char *name; /* Register name */
- unsigned flag; /* Register flag */
- unsigned write; /* Register write flag */
-};
-
-/*
- * Currently it looks similar to cpu_debug_base but once we add more files
- * cpu_file_base will go in different direction
- */
-struct cpu_file_base {
- char *name; /* Register file name */
- unsigned flag; /* Register file flag */
- unsigned write; /* Register write flag */
-};
-
-struct cpu_cpuX_base {
- struct dentry *dentry; /* Register dentry */
- int init; /* Register index file */
-};
-
-struct cpu_debug_range {
- unsigned min; /* Register range min */
- unsigned max; /* Register range max */
- unsigned flag; /* Supported flags */
-};
-
-#endif /* _ASM_X86_CPU_DEBUG_H */
diff --git a/arch/x86/include/asm/hpet.h b/arch/x86/include/asm/hpet.h
index 5d89fd2..1d5c08a 100644
--- a/arch/x86/include/asm/hpet.h
+++ b/arch/x86/include/asm/hpet.h
@@ -67,6 +67,7 @@ extern unsigned long hpet_address;
extern unsigned long force_hpet_address;
extern u8 hpet_blockid;
extern int hpet_force_user;
+extern u8 hpet_msi_disable;
extern int is_hpet_enabled(void);
extern int hpet_enable(void);
extern void hpet_disable(void);
diff --git a/arch/x86/include/asm/microcode.h b/arch/x86/include/asm/microcode.h
index c24ca9a..ef51b50 100644
--- a/arch/x86/include/asm/microcode.h
+++ b/arch/x86/include/asm/microcode.h
@@ -12,8 +12,6 @@ struct device;
enum ucode_state { UCODE_ERROR, UCODE_OK, UCODE_NFOUND };
struct microcode_ops {
- void (*init)(struct device *device);
- void (*fini)(void);
enum ucode_state (*request_microcode_user) (int cpu,
const void __user *buf, size_t size);
diff --git a/arch/x86/kernel/cpu/Makefile b/arch/x86/kernel/cpu/Makefile
index 1d2cb38..c202b62 100644
--- a/arch/x86/kernel/cpu/Makefile
+++ b/arch/x86/kernel/cpu/Makefile
@@ -19,8 +19,6 @@ obj-y += vmware.o hypervisor.o sched.o
obj-$(CONFIG_X86_32) += bugs.o cmpxchg.o
obj-$(CONFIG_X86_64) += bugs_64.o
-obj-$(CONFIG_X86_CPU_DEBUG) += cpu_debug.o
-
obj-$(CONFIG_CPU_SUP_INTEL) += intel.o
obj-$(CONFIG_CPU_SUP_AMD) += amd.o
obj-$(CONFIG_CPU_SUP_CYRIX_32) += cyrix.o
diff --git a/arch/x86/kernel/cpu/cpu_debug.c b/arch/x86/kernel/cpu/cpu_debug.c
deleted file mode 100644
index b368cd8..0000000
--- a/arch/x86/kernel/cpu/cpu_debug.c
+++ /dev/null
@@ -1,688 +0,0 @@
-/*
- * CPU x86 architecture debug code
- *
- * Copyright(C) 2009 Jaswinder Singh Rajput
- *
- * For licencing details see kernel-base/COPYING
- */
-
-#include <linux/interrupt.h>
-#include <linux/compiler.h>
-#include <linux/seq_file.h>
-#include <linux/debugfs.h>
-#include <linux/kprobes.h>
-#include <linux/uaccess.h>
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/percpu.h>
-#include <linux/signal.h>
-#include <linux/errno.h>
-#include <linux/sched.h>
-#include <linux/types.h>
-#include <linux/init.h>
-#include <linux/slab.h>
-#include <linux/smp.h>
-
-#include <asm/cpu_debug.h>
-#include <asm/paravirt.h>
-#include <asm/system.h>
-#include <asm/traps.h>
-#include <asm/apic.h>
-#include <asm/desc.h>
-
-static DEFINE_PER_CPU(struct cpu_cpuX_base [CPU_REG_ALL_BIT], cpud_arr);
-static DEFINE_PER_CPU(struct cpu_private * [MAX_CPU_FILES], cpud_priv_arr);
-static DEFINE_PER_CPU(int, cpud_priv_count);
-
-static DEFINE_MUTEX(cpu_debug_lock);
-
-static struct dentry *cpu_debugfs_dir;
-
-static struct cpu_debug_base cpu_base[] = {
- { "mc", CPU_MC, 0 },
- { "monitor", CPU_MONITOR, 0 },
- { "time", CPU_TIME, 0 },
- { "pmc", CPU_PMC, 1 },
- { "platform", CPU_PLATFORM, 0 },
- { "apic", CPU_APIC, 0 },
- { "poweron", CPU_POWERON, 0 },
- { "control", CPU_CONTROL, 0 },
- { "features", CPU_FEATURES, 0 },
- { "lastbranch", CPU_LBRANCH, 0 },
- { "bios", CPU_BIOS, 0 },
- { "freq", CPU_FREQ, 0 },
- { "mtrr", CPU_MTRR, 0 },
- { "perf", CPU_PERF, 0 },
- { "cache", CPU_CACHE, 0 },
- { "sysenter", CPU_SYSENTER, 0 },
- { "therm", CPU_THERM, 0 },
- { "misc", CPU_MISC, 0 },
- { "debug", CPU_DEBUG, 0 },
- { "pat", CPU_PAT, 0 },
- { "vmx", CPU_VMX, 0 },
- { "call", CPU_CALL, 0 },
- { "base", CPU_BASE, 0 },
- { "ver", CPU_VER, 0 },
- { "conf", CPU_CONF, 0 },
- { "smm", CPU_SMM, 0 },
- { "svm", CPU_SVM, 0 },
- { "osvm", CPU_OSVM, 0 },
- { "tss", CPU_TSS, 0 },
- { "cr", CPU_CR, 0 },
- { "dt", CPU_DT, 0 },
- { "registers", CPU_REG_ALL, 0 },
-};
-
-static struct cpu_file_base cpu_file[] = {
- { "index", CPU_REG_ALL, 0 },
- { "value", CPU_REG_ALL, 1 },
-};
-
-/* CPU Registers Range */
-static struct cpu_debug_range cpu_reg_range[] = {
- { 0x00000000, 0x00000001, CPU_MC, },
- { 0x00000006, 0x00000007, CPU_MONITOR, },
- { 0x00000010, 0x00000010, CPU_TIME, },
- { 0x00000011, 0x00000013, CPU_PMC, },
- { 0x00000017, 0x00000017, CPU_PLATFORM, },
- { 0x0000001B, 0x0000001B, CPU_APIC, },
- { 0x0000002A, 0x0000002B, CPU_POWERON, },
- { 0x0000002C, 0x0000002C, CPU_FREQ, },
- { 0x0000003A, 0x0000003A, CPU_CONTROL, },
- { 0x00000040, 0x00000047, CPU_LBRANCH, },
- { 0x00000060, 0x00000067, CPU_LBRANCH, },
- { 0x00000079, 0x00000079, CPU_BIOS, },
- { 0x00000088, 0x0000008A, CPU_CACHE, },
- { 0x0000008B, 0x0000008B, CPU_BIOS, },
- { 0x0000009B, 0x0000009B, CPU_MONITOR, },
- { 0x000000C1, 0x000000C4, CPU_PMC, },
- { 0x000000CD, 0x000000CD, CPU_FREQ, },
- { 0x000000E7, 0x000000E8, CPU_PERF, },
- { 0x000000FE, 0x000000FE, CPU_MTRR, },
-
- { 0x00000116, 0x0000011E, CPU_CACHE, },
- { 0x00000174, 0x00000176, CPU_SYSENTER, },
- { 0x00000179, 0x0000017B, CPU_MC, },
- { 0x00000186, 0x00000189, CPU_PMC, },
- { 0x00000198, 0x00000199, CPU_PERF, },
- { 0x0000019A, 0x0000019A, CPU_TIME, },
- { 0x0000019B, 0x0000019D, CPU_THERM, },
- { 0x000001A0, 0x000001A0, CPU_MISC, },
- { 0x000001C9, 0x000001C9, CPU_LBRANCH, },
- { 0x000001D7, 0x000001D8, CPU_LBRANCH, },
- { 0x000001D9, 0x000001D9, CPU_DEBUG, },
- { 0x000001DA, 0x000001E0, CPU_LBRANCH, },
-
- { 0x00000200, 0x0000020F, CPU_MTRR, },
- { 0x00000250, 0x00000250, CPU_MTRR, },
- { 0x00000258, 0x00000259, CPU_MTRR, },
- { 0x00000268, 0x0000026F, CPU_MTRR, },
- { 0x00000277, 0x00000277, CPU_PAT, },
- { 0x000002FF, 0x000002FF, CPU_MTRR, },
-
- { 0x00000300, 0x00000311, CPU_PMC, },
- { 0x00000345, 0x00000345, CPU_PMC, },
- { 0x00000360, 0x00000371, CPU_PMC, },
- { 0x0000038D, 0x00000390, CPU_PMC, },
- { 0x000003A0, 0x000003BE, CPU_PMC, },
- { 0x000003C0, 0x000003CD, CPU_PMC, },
- { 0x000003E0, 0x000003E1, CPU_PMC, },
- { 0x000003F0, 0x000003F2, CPU_PMC, },
-
- { 0x00000400, 0x00000417, CPU_MC, },
- { 0x00000480, 0x0000048B, CPU_VMX, },
-
- { 0x00000600, 0x00000600, CPU_DEBUG, },
- { 0x00000680, 0x0000068F, CPU_LBRANCH, },
- { 0x000006C0, 0x000006CF, CPU_LBRANCH, },
-
- { 0x000107CC, 0x000107D3, CPU_PMC, },
-
- { 0xC0000080, 0xC0000080, CPU_FEATURES, },
- { 0xC0000081, 0xC0000084, CPU_CALL, },
- { 0xC0000100, 0xC0000102, CPU_BASE, },
- { 0xC0000103, 0xC0000103, CPU_TIME, },
-
- { 0xC0010000, 0xC0010007, CPU_PMC, },
- { 0xC0010010, 0xC0010010, CPU_CONF, },
- { 0xC0010015, 0xC0010015, CPU_CONF, },
- { 0xC0010016, 0xC001001A, CPU_MTRR, },
- { 0xC001001D, 0xC001001D, CPU_MTRR, },
- { 0xC001001F, 0xC001001F, CPU_CONF, },
- { 0xC0010030, 0xC0010035, CPU_BIOS, },
- { 0xC0010044, 0xC0010048, CPU_MC, },
- { 0xC0010050, 0xC0010056, CPU_SMM, },
- { 0xC0010058, 0xC0010058, CPU_CONF, },
- { 0xC0010060, 0xC0010060, CPU_CACHE, },
- { 0xC0010061, 0xC0010068, CPU_SMM, },
- { 0xC0010069, 0xC001006B, CPU_SMM, },
- { 0xC0010070, 0xC0010071, CPU_SMM, },
- { 0xC0010111, 0xC0010113, CPU_SMM, },
- { 0xC0010114, 0xC0010118, CPU_SVM, },
- { 0xC0010140, 0xC0010141, CPU_OSVM, },
- { 0xC0011022, 0xC0011023, CPU_CONF, },
-};
-
-static int is_typeflag_valid(unsigned cpu, unsigned flag)
-{
- int i;
-
- /* Standard Registers should be always valid */
- if (flag >= CPU_TSS)
- return 1;
-
- for (i = 0; i < ARRAY_SIZE(cpu_reg_range); i++) {
- if (cpu_reg_range[i].flag == flag)
- return 1;
- }
-
- /* Invalid */
- return 0;
-}
-
-static unsigned get_cpu_range(unsigned cpu, unsigned *min, unsigned *max,
- int index, unsigned flag)
-{
- if (cpu_reg_range[index].flag == flag) {
- *min = cpu_reg_range[index].min;
- *max = cpu_reg_range[index].max;
- } else
- *max = 0;
-
- return *max;
-}
-
-/* This function can also be called with seq = NULL for printk */
-static void print_cpu_data(struct seq_file *seq, unsigned type,
- u32 low, u32 high)
-{
- struct cpu_private *priv;
- u64 val = high;
-
- if (seq) {
- priv = seq->private;
- if (priv->file) {
- val = (val << 32) | low;
- seq_printf(seq, "0x%llx\n", val);
- } else
- seq_printf(seq, " %08x: %08x_%08x\n",
- type, high, low);
- } else
- printk(KERN_INFO " %08x: %08x_%08x\n", type, high, low);
-}
-
-/* This function can also be called with seq = NULL for printk */
-static void print_msr(struct seq_file *seq, unsigned cpu, unsigned flag)
-{
- unsigned msr, msr_min, msr_max;
- struct cpu_private *priv;
- u32 low, high;
- int i;
-
- if (seq) {
- priv = seq->private;
- if (priv->file) {
- if (!rdmsr_safe_on_cpu(priv->cpu, priv->reg,
- &low, &high))
- print_cpu_data(seq, priv->reg, low, high);
- return;
- }
- }
-
- for (i = 0; i < ARRAY_SIZE(cpu_reg_range); i++) {
- if (!get_cpu_range(cpu, &msr_min, &msr_max, i, flag))
- continue;
-
- for (msr = msr_min; msr <= msr_max; msr++) {
- if (rdmsr_safe_on_cpu(cpu, msr, &low, &high))
- continue;
- print_cpu_data(seq, msr, low, high);
- }
- }
-}
-
-static void print_tss(void *arg)
-{
- struct pt_regs *regs = task_pt_regs(current);
- struct seq_file *seq = arg;
- unsigned int seg;
-
- seq_printf(seq, " RAX\t: %016lx\n", regs->ax);
- seq_printf(seq, " RBX\t: %016lx\n", regs->bx);
- seq_printf(seq, " RCX\t: %016lx\n", regs->cx);
- seq_printf(seq, " RDX\t: %016lx\n", regs->dx);
-
- seq_printf(seq, " RSI\t: %016lx\n", regs->si);
- seq_printf(seq, " RDI\t: %016lx\n", regs->di);
- seq_printf(seq, " RBP\t: %016lx\n", regs->bp);
- seq_printf(seq, " ESP\t: %016lx\n", regs->sp);
-
-#ifdef CONFIG_X86_64
- seq_printf(seq, " R08\t: %016lx\n", regs->r8);
- seq_printf(seq, " R09\t: %016lx\n", regs->r9);
- seq_printf(seq, " R10\t: %016lx\n", regs->r10);
- seq_printf(seq, " R11\t: %016lx\n", regs->r11);
- seq_printf(seq, " R12\t: %016lx\n", regs->r12);
- seq_printf(seq, " R13\t: %016lx\n", regs->r13);
- seq_printf(seq, " R14\t: %016lx\n", regs->r14);
- seq_printf(seq, " R15\t: %016lx\n", regs->r15);
-#endif
-
- asm("movl %%cs,%0" : "=r" (seg));
- seq_printf(seq, " CS\t: %04x\n", seg);
- asm("movl %%ds,%0" : "=r" (seg));
- seq_printf(seq, " DS\t: %04x\n", seg);
- seq_printf(seq, " SS\t: %04lx\n", regs->ss & 0xffff);
- asm("movl %%es,%0" : "=r" (seg));
- seq_printf(seq, " ES\t: %04x\n", seg);
- asm("movl %%fs,%0" : "=r" (seg));
- seq_printf(seq, " FS\t: %04x\n", seg);
- asm("movl %%gs,%0" : "=r" (seg));
- seq_printf(seq, " GS\t: %04x\n", seg);
-
- seq_printf(seq, " EFLAGS\t: %016lx\n", regs->flags);
-
- seq_printf(seq, " EIP\t: %016lx\n", regs->ip);
-}
-
-static void print_cr(void *arg)
-{
- struct seq_file *seq = arg;
-
- seq_printf(seq, " cr0\t: %016lx\n", read_cr0());
- seq_printf(seq, " cr2\t: %016lx\n", read_cr2());
- seq_printf(seq, " cr3\t: %016lx\n", read_cr3());
- seq_printf(seq, " cr4\t: %016lx\n", read_cr4_safe());
-#ifdef CONFIG_X86_64
- seq_printf(seq, " cr8\t: %016lx\n", read_cr8());
-#endif
-}
-
-static void print_desc_ptr(char *str, struct seq_file *seq, struct desc_ptr dt)
-{
- seq_printf(seq, " %s\t: %016llx\n", str, (u64)(dt.address | dt.size));
-}
-
-static void print_dt(void *seq)
-{
- struct desc_ptr dt;
- unsigned long ldt;
-
- /* IDT */
- store_idt((struct desc_ptr *)&dt);
- print_desc_ptr("IDT", seq, dt);
-
- /* GDT */
- store_gdt((struct desc_ptr *)&dt);
- print_desc_ptr("GDT", seq, dt);
-
- /* LDT */
- store_ldt(ldt);
- seq_printf(seq, " LDT\t: %016lx\n", ldt);
-
- /* TR */
- store_tr(ldt);
- seq_printf(seq, " TR\t: %016lx\n", ldt);
-}
-
-static void print_dr(void *arg)
-{
- struct seq_file *seq = arg;
- unsigned long dr;
- int i;
-
- for (i = 0; i < 8; i++) {
- /* Ignore db4, db5 */
- if ((i == 4) || (i == 5))
- continue;
- get_debugreg(dr, i);
- seq_printf(seq, " dr%d\t: %016lx\n", i, dr);
- }
-
- seq_printf(seq, "\n MSR\t:\n");
-}
-
-static void print_apic(void *arg)
-{
- struct seq_file *seq = arg;
-
-#ifdef CONFIG_X86_LOCAL_APIC
- seq_printf(seq, " LAPIC\t:\n");
- seq_printf(seq, " ID\t\t: %08x\n", apic_read(APIC_ID) >> 24);
- seq_printf(seq, " LVR\t\t: %08x\n", apic_read(APIC_LVR));
- seq_printf(seq, " TASKPRI\t: %08x\n", apic_read(APIC_TASKPRI));
- seq_printf(seq, " ARBPRI\t\t: %08x\n", apic_read(APIC_ARBPRI));
- seq_printf(seq, " PROCPRI\t: %08x\n", apic_read(APIC_PROCPRI));
- seq_printf(seq, " LDR\t\t: %08x\n", apic_read(APIC_LDR));
- seq_printf(seq, " DFR\t\t: %08x\n", apic_read(APIC_DFR));
- seq_printf(seq, " SPIV\t\t: %08x\n", apic_read(APIC_SPIV));
- seq_printf(seq, " ISR\t\t: %08x\n", apic_read(APIC_ISR));
- seq_printf(seq, " ESR\t\t: %08x\n", apic_read(APIC_ESR));
- seq_printf(seq, " ICR\t\t: %08x\n", apic_read(APIC_ICR));
- seq_printf(seq, " ICR2\t\t: %08x\n", apic_read(APIC_ICR2));
- seq_printf(seq, " LVTT\t\t: %08x\n", apic_read(APIC_LVTT));
- seq_printf(seq, " LVTTHMR\t: %08x\n", apic_read(APIC_LVTTHMR));
- seq_printf(seq, " LVTPC\t\t: %08x\n", apic_read(APIC_LVTPC));
- seq_printf(seq, " LVT0\t\t: %08x\n", apic_read(APIC_LVT0));
- seq_printf(seq, " LVT1\t\t: %08x\n", apic_read(APIC_LVT1));
- seq_printf(seq, " LVTERR\t\t: %08x\n", apic_read(APIC_LVTERR));
- seq_printf(seq, " TMICT\t\t: %08x\n", apic_read(APIC_TMICT));
- seq_printf(seq, " TMCCT\t\t: %08x\n", apic_read(APIC_TMCCT));
- seq_printf(seq, " TDCR\t\t: %08x\n", apic_read(APIC_TDCR));
- if (boot_cpu_has(X86_FEATURE_EXTAPIC)) {
- unsigned int i, v, maxeilvt;
-
- v = apic_read(APIC_EFEAT);
- maxeilvt = (v >> 16) & 0xff;
- seq_printf(seq, " EFEAT\t\t: %08x\n", v);
- seq_printf(seq, " ECTRL\t\t: %08x\n", apic_read(APIC_ECTRL));
-
- for (i = 0; i < maxeilvt; i++) {
- v = apic_read(APIC_EILVTn(i));
- seq_printf(seq, " EILVT%d\t\t: %08x\n", i, v);
- }
- }
-#endif /* CONFIG_X86_LOCAL_APIC */
- seq_printf(seq, "\n MSR\t:\n");
-}
-
-static int cpu_seq_show(struct seq_file *seq, void *v)
-{
- struct cpu_private *priv = seq->private;
-
- if (priv == NULL)
- return -EINVAL;
-
- switch (cpu_base[priv->type].flag) {
- case CPU_TSS:
- smp_call_function_single(priv->cpu, print_tss, seq, 1);
- break;
- case CPU_CR:
- smp_call_function_single(priv->cpu, print_cr, seq, 1);
- break;
- case CPU_DT:
- smp_call_function_single(priv->cpu, print_dt, seq, 1);
- break;
- case CPU_DEBUG:
- if (priv->file == CPU_INDEX_BIT)
- smp_call_function_single(priv->cpu, print_dr, seq, 1);
- print_msr(seq, priv->cpu, cpu_base[priv->type].flag);
- break;
- case CPU_APIC:
- if (priv->file == CPU_INDEX_BIT)
- smp_call_function_single(priv->cpu, print_apic, seq, 1);
- print_msr(seq, priv->cpu, cpu_base[priv->type].flag);
- break;
-
- default:
- print_msr(seq, priv->cpu, cpu_base[priv->type].flag);
- break;
- }
- seq_printf(seq, "\n");
-
- return 0;
-}
-
-static void *cpu_seq_start(struct seq_file *seq, loff_t *pos)
-{
- if (*pos == 0) /* One time is enough ;-) */
- return seq;
-
- return NULL;
-}
-
-static void *cpu_seq_next(struct seq_file *seq, void *v, loff_t *pos)
-{
- (*pos)++;
-
- return cpu_seq_start(seq, pos);
-}
-
-static void cpu_seq_stop(struct seq_file *seq, void *v)
-{
-}
-
-static const struct seq_operations cpu_seq_ops = {
- .start = cpu_seq_start,
- .next = cpu_seq_next,
- .stop = cpu_seq_stop,
- .show = cpu_seq_show,
-};
-
-static int cpu_seq_open(struct inode *inode, struct file *file)
-{
- struct cpu_private *priv = inode->i_private;
- struct seq_file *seq;
- int err;
-
- err = seq_open(file, &cpu_seq_ops);
- if (!err) {
- seq = file->private_data;
- seq->private = priv;
- }
-
- return err;
-}
-
-static int write_msr(struct cpu_private *priv, u64 val)
-{
- u32 low, high;
-
- high = (val >> 32) & 0xffffffff;
- low = val & 0xffffffff;
-
- if (!wrmsr_safe_on_cpu(priv->cpu, priv->reg, low, high))
- return 0;
-
- return -EPERM;
-}
-
-static int write_cpu_register(struct cpu_private *priv, const char *buf)
-{
- int ret = -EPERM;
- u64 val;
-
- ret = strict_strtoull(buf, 0, &val);
- if (ret < 0)
- return ret;
-
- /* Supporting only MSRs */
- if (priv->type < CPU_TSS_BIT)
- return write_msr(priv, val);
-
- return ret;
-}
-
-static ssize_t cpu_write(struct file *file, const char __user *ubuf,
- size_t count, loff_t *off)
-{
- struct seq_file *seq = file->private_data;
- struct cpu_private *priv = seq->private;
- char buf[19];
-
- if ((priv == NULL) || (count >= sizeof(buf)))
- return -EINVAL;
-
- if (copy_from_user(&buf, ubuf, count))
- return -EFAULT;
-
- buf[count] = 0;
-
- if ((cpu_base[priv->type].write) && (cpu_file[priv->file].write))
- if (!write_cpu_register(priv, buf))
- return count;
-
- return -EACCES;
-}
-
-static const struct file_operations cpu_fops = {
- .owner = THIS_MODULE,
- .open = cpu_seq_open,
- .read = seq_read,
- .write = cpu_write,
- .llseek = seq_lseek,
- .release = seq_release,
-};
-
-static int cpu_create_file(unsigned cpu, unsigned type, unsigned reg,
- unsigned file, struct dentry *dentry)
-{
- struct cpu_private *priv = NULL;
-
- /* Already intialized */
- if (file == CPU_INDEX_BIT)
- if (per_cpu(cpud_arr[type].init, cpu))
- return 0;
-
- priv = kzalloc(sizeof(*priv), GFP_KERNEL);
- if (priv == NULL)
- return -ENOMEM;
-
- priv->cpu = cpu;
- priv->type = type;
- priv->reg = reg;
- priv->file = file;
- mutex_lock(&cpu_debug_lock);
- per_cpu(cpud_priv_arr[type], cpu) = priv;
- per_cpu(cpud_priv_count, cpu)++;
- mutex_unlock(&cpu_debug_lock);
-
- if (file)
- debugfs_create_file(cpu_file[file].name, S_IRUGO,
- dentry, (void *)priv, &cpu_fops);
- else {
- debugfs_create_file(cpu_base[type].name, S_IRUGO,
- per_cpu(cpud_arr[type].dentry, cpu),
- (void *)priv, &cpu_fops);
- mutex_lock(&cpu_debug_lock);
- per_cpu(cpud_arr[type].init, cpu) = 1;
- mutex_unlock(&cpu_debug_lock);
- }
-
- return 0;
-}
-
-static int cpu_init_regfiles(unsigned cpu, unsigned int type, unsigned reg,
- struct dentry *dentry)
-{
- unsigned file;
- int err = 0;
-
- for (file = 0; file < ARRAY_SIZE(cpu_file); file++) {
- err = cpu_create_file(cpu, type, reg, file, dentry);
- if (err)
- return err;
- }
-
- return err;
-}
-
-static int cpu_init_msr(unsigned cpu, unsigned type, struct dentry *dentry)
-{
- struct dentry *cpu_dentry = NULL;
- unsigned reg, reg_min, reg_max;
- int i, err = 0;
- char reg_dir[12];
- u32 low, high;
-
- for (i = 0; i < ARRAY_SIZE(cpu_reg_range); i++) {
- if (!get_cpu_range(cpu, ®_min, ®_max, i,
- cpu_base[type].flag))
- continue;
-
- for (reg = reg_min; reg <= reg_max; reg++) {
- if (rdmsr_safe_on_cpu(cpu, reg, &low, &high))
- continue;
-
- sprintf(reg_dir, "0x%x", reg);
- cpu_dentry = debugfs_create_dir(reg_dir, dentry);
- err = cpu_init_regfiles(cpu, type, reg, cpu_dentry);
- if (err)
- return err;
- }
- }
-
- return err;
-}
-
-static int cpu_init_allreg(unsigned cpu, struct dentry *dentry)
-{
- struct dentry *cpu_dentry = NULL;
- unsigned type;
- int err = 0;
-
- for (type = 0; type < ARRAY_SIZE(cpu_base) - 1; type++) {
- if (!is_typeflag_valid(cpu, cpu_base[type].flag))
- continue;
- cpu_dentry = debugfs_create_dir(cpu_base[type].name, dentry);
- per_cpu(cpud_arr[type].dentry, cpu) = cpu_dentry;
-
- if (type < CPU_TSS_BIT)
- err = cpu_init_msr(cpu, type, cpu_dentry);
- else
- err = cpu_create_file(cpu, type, 0, CPU_INDEX_BIT,
- cpu_dentry);
- if (err)
- return err;
- }
-
- return err;
-}
-
-static int cpu_init_cpu(void)
-{
- struct dentry *cpu_dentry = NULL;
- struct cpuinfo_x86 *cpui;
- char cpu_dir[12];
- unsigned cpu;
- int err = 0;
-
- for (cpu = 0; cpu < nr_cpu_ids; cpu++) {
- cpui = &cpu_data(cpu);
- if (!cpu_has(cpui, X86_FEATURE_MSR))
- continue;
-
- sprintf(cpu_dir, "cpu%d", cpu);
- cpu_dentry = debugfs_create_dir(cpu_dir, cpu_debugfs_dir);
- err = cpu_init_allreg(cpu, cpu_dentry);
-
- pr_info("cpu%d(%d) debug files %d\n",
- cpu, nr_cpu_ids, per_cpu(cpud_priv_count, cpu));
- if (per_cpu(cpud_priv_count, cpu) > MAX_CPU_FILES) {
- pr_err("Register files count %d exceeds limit %d\n",
- per_cpu(cpud_priv_count, cpu), MAX_CPU_FILES);
- per_cpu(cpud_priv_count, cpu) = MAX_CPU_FILES;
- err = -ENFILE;
- }
- if (err)
- return err;
- }
-
- return err;
-}
-
-static int __init cpu_debug_init(void)
-{
- cpu_debugfs_dir = debugfs_create_dir("cpu", arch_debugfs_dir);
-
- return cpu_init_cpu();
-}
-
-static void __exit cpu_debug_exit(void)
-{
- int i, cpu;
-
- if (cpu_debugfs_dir)
- debugfs_remove_recursive(cpu_debugfs_dir);
-
- for (cpu = 0; cpu < nr_cpu_ids; cpu++)
- for (i = 0; i < per_cpu(cpud_priv_count, cpu); i++)
- kfree(per_cpu(cpud_priv_arr[i], cpu));
-}
-
-module_init(cpu_debug_init);
-module_exit(cpu_debug_exit);
-
-MODULE_AUTHOR("Jaswinder Singh Rajput");
-MODULE_DESCRIPTION("CPU Debug module");
-MODULE_LICENSE("GPL");
diff --git a/arch/x86/kernel/cpuid.c b/arch/x86/kernel/cpuid.c
index cb27fd6..83e5e62 100644
--- a/arch/x86/kernel/cpuid.c
+++ b/arch/x86/kernel/cpuid.c
@@ -229,7 +229,7 @@ static void __exit cpuid_exit(void)
for_each_online_cpu(cpu)
cpuid_device_destroy(cpu);
class_destroy(cpuid_class);
- unregister_chrdev(CPUID_MAJOR, "cpu/cpuid");
+ __unregister_chrdev(CPUID_MAJOR, 0, NR_CPUS, "cpu/cpuid");
unregister_hotcpu_notifier(&cpuid_class_cpu_notifier);
}
diff --git a/arch/x86/kernel/hpet.c b/arch/x86/kernel/hpet.c
index ba6e658..ad80a1c 100644
--- a/arch/x86/kernel/hpet.c
+++ b/arch/x86/kernel/hpet.c
@@ -34,6 +34,8 @@
*/
unsigned long hpet_address;
u8 hpet_blockid; /* OS timer block num */
+u8 hpet_msi_disable;
+
#ifdef CONFIG_PCI_MSI
static unsigned long hpet_num_timers;
#endif
@@ -596,6 +598,9 @@ static void hpet_msi_capability_lookup(unsigned int start_timer)
unsigned int num_timers_used = 0;
int i;
+ if (hpet_msi_disable)
+ return;
+
if (boot_cpu_has(X86_FEATURE_ARAT))
return;
id = hpet_readl(HPET_ID);
@@ -928,6 +933,9 @@ static __init int hpet_late_init(void)
hpet_reserve_platform_timers(hpet_readl(HPET_ID));
hpet_print_config();
+ if (hpet_msi_disable)
+ return 0;
+
if (boot_cpu_has(X86_FEATURE_ARAT))
return 0;
diff --git a/arch/x86/kernel/microcode_amd.c b/arch/x86/kernel/microcode_amd.c
index 37542b6..e1af7c0 100644
--- a/arch/x86/kernel/microcode_amd.c
+++ b/arch/x86/kernel/microcode_amd.c
@@ -36,9 +36,6 @@ MODULE_LICENSE("GPL v2");
#define UCODE_EQUIV_CPU_TABLE_TYPE 0x00000000
#define UCODE_UCODE_TYPE 0x00000001
-const struct firmware *firmware;
-static int supported_cpu;
-
struct equiv_cpu_entry {
u32 installed_cpu;
u32 fixed_errata_mask;
@@ -77,12 +74,15 @@ static struct equiv_cpu_entry *equiv_cpu_table;
static int collect_cpu_info_amd(int cpu, struct cpu_signature *csig)
{
+ struct cpuinfo_x86 *c = &cpu_data(cpu);
u32 dummy;
- if (!supported_cpu)
- return -1;
-
memset(csig, 0, sizeof(*csig));
+ if (c->x86_vendor != X86_VENDOR_AMD || c->x86 < 0x10) {
+ pr_warning("microcode: CPU%d: AMD CPU family 0x%x not "
+ "supported\n", cpu, c->x86);
+ return -1;
+ }
rdmsr(MSR_AMD64_PATCH_LEVEL, csig->rev, dummy);
pr_info("CPU%d: patch_level=0x%x\n", cpu, csig->rev);
return 0;
@@ -294,10 +294,14 @@ generic_load_microcode(int cpu, const u8 *data, size_t size)
static enum ucode_state request_microcode_fw(int cpu, struct device *device)
{
+ const char *fw_name = "amd-ucode/microcode_amd.bin";
+ const struct firmware *firmware;
enum ucode_state ret;
- if (firmware == NULL)
+ if (request_firmware(&firmware, fw_name, device)) {
+ printk(KERN_ERR "microcode: failed to load file %s\n", fw_name);
return UCODE_NFOUND;
+ }
if (*(u32 *)firmware->data != UCODE_MAGIC) {
pr_err("invalid UCODE_MAGIC (0x%08x)\n",
@@ -307,6 +311,8 @@ static enum ucode_state request_microcode_fw(int cpu, struct device *device)
ret = generic_load_microcode(cpu, firmware->data, firmware->size);
+ release_firmware(firmware);
+
return ret;
}
@@ -325,31 +331,7 @@ static void microcode_fini_cpu_amd(int cpu)
uci->mc = NULL;
}
-void init_microcode_amd(struct device *device)
-{
- const char *fw_name = "amd-ucode/microcode_amd.bin";
- struct cpuinfo_x86 *c = &boot_cpu_data;
-
- WARN_ON(c->x86_vendor != X86_VENDOR_AMD);
-
- if (c->x86 < 0x10) {
- pr_warning("AMD CPU family 0x%x not supported\n", c->x86);
- return;
- }
- supported_cpu = 1;
-
- if (request_firmware(&firmware, fw_name, device))
- pr_err("failed to load file %s\n", fw_name);
-}
-
-void fini_microcode_amd(void)
-{
- release_firmware(firmware);
-}
-
static struct microcode_ops microcode_amd_ops = {
- .init = init_microcode_amd,
- .fini = fini_microcode_amd,
.request_microcode_user = request_microcode_user,
.request_microcode_fw = request_microcode_fw,
.collect_cpu_info = collect_cpu_info_amd,
diff --git a/arch/x86/kernel/microcode_core.c b/arch/x86/kernel/microcode_core.c
index 0c86324..cceb5bc 100644
--- a/arch/x86/kernel/microcode_core.c
+++ b/arch/x86/kernel/microcode_core.c
@@ -521,9 +521,6 @@ static int __init microcode_init(void)
return PTR_ERR(microcode_pdev);
}
- if (microcode_ops->init)
- microcode_ops->init(µcode_pdev->dev);
-
get_online_cpus();
mutex_lock(µcode_mutex);
@@ -566,9 +563,6 @@ static void __exit microcode_exit(void)
platform_device_unregister(microcode_pdev);
- if (microcode_ops->fini)
- microcode_ops->fini();
-
microcode_ops = NULL;
pr_info("Microcode Update Driver: v" MICROCODE_VERSION " removed.\n");
diff --git a/arch/x86/kernel/msr.c b/arch/x86/kernel/msr.c
index 4bd93c9..206735a 100644
--- a/arch/x86/kernel/msr.c
+++ b/arch/x86/kernel/msr.c
@@ -285,7 +285,7 @@ static void __exit msr_exit(void)
for_each_online_cpu(cpu)
msr_device_destroy(cpu);
class_destroy(msr_class);
- unregister_chrdev(MSR_MAJOR, "cpu/msr");
+ __unregister_chrdev(MSR_MAJOR, 0, NR_CPUS, "cpu/msr");
unregister_hotcpu_notifier(&msr_class_cpu_notifier);
}
diff --git a/arch/x86/kernel/quirks.c b/arch/x86/kernel/quirks.c
index 18093d7..12e9fea 100644
--- a/arch/x86/kernel/quirks.c
+++ b/arch/x86/kernel/quirks.c
@@ -491,6 +491,19 @@ void force_hpet_resume(void)
break;
}
}
+
+/*
+ * HPET MSI on some boards (ATI SB700/SB800) has side effect on
+ * floppy DMA. Disable HPET MSI on such platforms.
+ */
+static void force_disable_hpet_msi(struct pci_dev *unused)
+{
+ hpet_msi_disable = 1;
+}
+
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_SBX00_SMBUS,
+ force_disable_hpet_msi);
+
#endif
#if defined(CONFIG_PCI) && defined(CONFIG_NUMA)
diff --git a/arch/x86/mm/srat_64.c b/arch/x86/mm/srat_64.c
index a271241..28c6876 100644
--- a/arch/x86/mm/srat_64.c
+++ b/arch/x86/mm/srat_64.c
@@ -229,9 +229,11 @@ update_nodes_add(int node, unsigned long start, unsigned long end)
printk(KERN_ERR "SRAT: Hotplug zone not continuous. Partly ignored\n");
}
- if (changed)
+ if (changed) {
+ node_set(node, cpu_nodes_parsed);
printk(KERN_INFO "SRAT: hot plug zone found %Lx - %Lx\n",
nd->start, nd->end);
+ }
}
/* Callback for parsing of the Proximity Domain <-> Memory Area mappings */
--
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