| 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: Fri, 11 Jul 2008 18:44:16 -0700
From: Yinghai Lu <yhlu.kernel@...il.com>
To: Ingo Molnar <mingo@...e.hu>, Thomas Gleixner <tglx@...utronix.de>,
"H. Peter Anvin" <hpa@...or.com>,
Suresh Siddha <suresh.b.siddha@...el.com>
Cc: LKML <linux-kernel@...r.kernel.org>
Subject: [PATCH] x86: make read_apic_id return final apicid
also remove GET_APIC_ID when read_apic_id is used.
need to apply after
[PATCH] x86: mach_apicdef.h need to include before smp.h
Signed-off-by: Yinghai Lu <yhlu.kernel@...il.com>
---
arch/x86/kernel/acpi/boot.c | 2 +-
arch/x86/kernel/apic_32.c | 4 ++--
arch/x86/kernel/apic_64.c | 6 +++---
arch/x86/kernel/genapic_flat_64.c | 2 +-
arch/x86/kernel/io_apic_32.c | 5 ++---
arch/x86/kernel/io_apic_64.c | 4 ++--
arch/x86/kernel/smpboot.c | 6 +++---
include/asm-x86/mach-default/mach_apic.h | 2 +-
include/asm-x86/mach-default/mach_apicdef.h | 3 +--
include/asm-x86/mach-es7000/mach_apic.h | 2 +-
include/asm-x86/smp.h | 11 ++++++++---
11 files changed, 25 insertions(+), 22 deletions(-)
Index: linux-2.6/arch/x86/kernel/acpi/boot.c
===================================================================
--- linux-2.6.orig/arch/x86/kernel/acpi/boot.c
+++ linux-2.6/arch/x86/kernel/acpi/boot.c
@@ -763,7 +763,7 @@ static void __init acpi_register_lapic_a
set_fixmap_nocache(FIX_APIC_BASE, address);
if (boot_cpu_physical_apicid == -1U) {
- boot_cpu_physical_apicid = GET_APIC_ID(read_apic_id());
+ boot_cpu_physical_apicid = read_apic_id();
#ifdef CONFIG_X86_32
apic_version[boot_cpu_physical_apicid] =
GET_APIC_VERSION(apic_read(APIC_LVR));
Index: linux-2.6/arch/x86/kernel/apic_32.c
===================================================================
--- linux-2.6.orig/arch/x86/kernel/apic_32.c
+++ linux-2.6/arch/x86/kernel/apic_32.c
@@ -1230,7 +1230,7 @@ void __init init_apic_mappings(void)
* default configuration (or the MP table is broken).
*/
if (boot_cpu_physical_apicid == -1U)
- boot_cpu_physical_apicid = GET_APIC_ID(read_apic_id());
+ boot_cpu_physical_apicid = read_apic_id();
}
@@ -1270,7 +1270,7 @@ int __init APIC_init_uniprocessor(void)
* might be zero if read from MP tables. Get it from LAPIC.
*/
#ifdef CONFIG_CRASH_DUMP
- boot_cpu_physical_apicid = GET_APIC_ID(read_apic_id());
+ boot_cpu_physical_apicid = read_apic_id();
#endif
physid_set_mask_of_physid(boot_cpu_physical_apicid, &phys_cpu_present_map);
Index: linux-2.6/arch/x86/kernel/apic_64.c
===================================================================
--- linux-2.6.orig/arch/x86/kernel/apic_64.c
+++ linux-2.6/arch/x86/kernel/apic_64.c
@@ -1060,7 +1060,7 @@ void __init early_init_lapic_mapping(voi
* Fetch the APIC ID of the BSP in case we have a
* default configuration (or the MP table is broken).
*/
- boot_cpu_physical_apicid = GET_APIC_ID(read_apic_id());
+ boot_cpu_physical_apicid = read_apic_id();
}
/**
@@ -1069,7 +1069,7 @@ void __init early_init_lapic_mapping(voi
void __init init_apic_mappings(void)
{
if (x2apic) {
- boot_cpu_physical_apicid = GET_APIC_ID(read_apic_id());
+ boot_cpu_physical_apicid = read_apic_id();
return;
}
@@ -1092,7 +1092,7 @@ void __init init_apic_mappings(void)
* Fetch the APIC ID of the BSP in case we have a
* default configuration (or the MP table is broken).
*/
- boot_cpu_physical_apicid = GET_APIC_ID(read_apic_id());
+ boot_cpu_physical_apicid = read_apic_id();
}
/*
Index: linux-2.6/arch/x86/kernel/genapic_flat_64.c
===================================================================
--- linux-2.6.orig/arch/x86/kernel/genapic_flat_64.c
+++ linux-2.6/arch/x86/kernel/genapic_flat_64.c
@@ -101,7 +101,7 @@ static unsigned int read_xapic_id(void)
{
unsigned int id;
- id = GET_XAPIC_ID(apic_read(APIC_ID));
+ id = GET_APIC_ID(apic_read(APIC_ID));
return id;
}
Index: linux-2.6/arch/x86/kernel/io_apic_32.c
===================================================================
--- linux-2.6.orig/arch/x86/kernel/io_apic_32.c
+++ linux-2.6/arch/x86/kernel/io_apic_32.c
@@ -1501,7 +1501,7 @@ void /*__init*/ print_local_APIC(void *d
smp_processor_id(), hard_smp_processor_id());
v = apic_read(APIC_ID);
printk(KERN_INFO "... APIC ID: %08x (%01x)\n", v,
- GET_APIC_ID(read_apic_id()));
+ GET_APIC_ID(v));
v = apic_read(APIC_LVR);
printk(KERN_INFO "... APIC VERSION: %08x\n", v);
ver = GET_APIC_VERSION(v);
@@ -1709,8 +1709,7 @@ void disable_IO_APIC(void)
entry.dest_mode = 0; /* Physical */
entry.delivery_mode = dest_ExtINT; /* ExtInt */
entry.vector = 0;
- entry.dest.physical.physical_dest =
- GET_APIC_ID(read_apic_id());
+ entry.dest.physical.physical_dest = read_apic_id();
/*
* Add it to the IO-APIC irq-routing table:
Index: linux-2.6/arch/x86/kernel/io_apic_64.c
===================================================================
--- linux-2.6.orig/arch/x86/kernel/io_apic_64.c
+++ linux-2.6/arch/x86/kernel/io_apic_64.c
@@ -1246,7 +1246,7 @@ void __apicdebuginit print_local_APIC(vo
printk("\n" KERN_DEBUG "printing local APIC contents on CPU#%d/%d:\n",
smp_processor_id(), hard_smp_processor_id());
v = apic_read(APIC_ID);
- printk(KERN_INFO "... APIC ID: %08x (%01x)\n", v, GET_APIC_ID(read_apic_id()));
+ printk(KERN_INFO "... APIC ID: %08x (%01x)\n", v, read_apic_id());
v = apic_read(APIC_LVR);
printk(KERN_INFO "... APIC VERSION: %08x\n", v);
ver = GET_APIC_VERSION(v);
@@ -1441,7 +1441,7 @@ void disable_IO_APIC(void)
entry.dest_mode = 0; /* Physical */
entry.delivery_mode = dest_ExtINT; /* ExtInt */
entry.vector = 0;
- entry.dest = GET_APIC_ID(read_apic_id());
+ entry.dest = read_apic_id();
/*
* Add it to the IO-APIC irq-routing table:
Index: linux-2.6/arch/x86/kernel/smpboot.c
===================================================================
--- linux-2.6.orig/arch/x86/kernel/smpboot.c
+++ linux-2.6/arch/x86/kernel/smpboot.c
@@ -211,7 +211,7 @@ static void __cpuinit smp_callin(void)
/*
* (This works even if the APIC is not enabled.)
*/
- phys_id = GET_APIC_ID(read_apic_id());
+ phys_id = read_apic_id();
cpuid = smp_processor_id();
if (cpu_isset(cpuid, cpu_callin_map)) {
panic("%s: phys CPU#%d, CPU#%d already present??\n", __func__,
@@ -1157,9 +1157,9 @@ void __init native_smp_prepare_cpus(unsi
}
preempt_disable();
- if (GET_APIC_ID(read_apic_id()) != boot_cpu_physical_apicid) {
+ if (read_apic_id() != boot_cpu_physical_apicid) {
panic("Boot APIC ID in local APIC unexpected (%d vs %d)",
- GET_APIC_ID(read_apic_id()), boot_cpu_physical_apicid);
+ read_apic_id(), boot_cpu_physical_apicid);
/* Or can we switch back to PIC here? */
}
preempt_enable();
Index: linux-2.6/include/asm-x86/mach-default/mach_apic.h
===================================================================
--- linux-2.6.orig/include/asm-x86/mach-default/mach_apic.h
+++ linux-2.6/include/asm-x86/mach-default/mach_apic.h
@@ -56,7 +56,7 @@ static inline void init_apic_ldr(void)
static inline int apic_id_registered(void)
{
- return physid_isset(GET_APIC_ID(read_apic_id()), phys_cpu_present_map);
+ return physid_isset(read_apic_id(), phys_cpu_present_map);
}
static inline unsigned int cpu_mask_to_apicid(cpumask_t cpumask)
Index: linux-2.6/include/asm-x86/mach-default/mach_apicdef.h
===================================================================
--- linux-2.6.orig/include/asm-x86/mach-default/mach_apicdef.h
+++ linux-2.6/include/asm-x86/mach-default/mach_apicdef.h
@@ -5,9 +5,8 @@
#ifdef CONFIG_X86_64
#define APIC_ID_MASK (0xFFu<<24)
-#define GET_APIC_ID(x) (x)
+#define GET_APIC_ID(x) (((x)>>24) & 0xFFu)
#define SET_APIC_ID(x) (((x)<<24))
-#define GET_XAPIC_ID(x) (((x) >> 24) & 0xFFu)
#else
#define APIC_ID_MASK (0xF<<24)
static inline unsigned get_apic_id(unsigned long x)
Index: linux-2.6/include/asm-x86/mach-es7000/mach_apic.h
===================================================================
--- linux-2.6.orig/include/asm-x86/mach-es7000/mach_apic.h
+++ linux-2.6/include/asm-x86/mach-es7000/mach_apic.h
@@ -141,7 +141,7 @@ static inline void setup_portio_remap(vo
extern unsigned int boot_cpu_physical_apicid;
static inline int check_phys_apicid_present(int cpu_physical_apicid)
{
- boot_cpu_physical_apicid = GET_APIC_ID(read_apic_id());
+ boot_cpu_physical_apicid = read_apic_id();
return (1);
}
Index: linux-2.6/include/asm-x86/smp.h
===================================================================
--- linux-2.6.orig/include/asm-x86/smp.h
+++ linux-2.6/include/asm-x86/smp.h
@@ -172,9 +172,14 @@ static inline int logical_smp_processor_
return GET_APIC_LOGICAL_ID(*(u32 *)(APIC_BASE + APIC_LDR));
}
+#include <mach_apicdef.h>
static inline unsigned int read_apic_id(void)
{
- return *(u32 *)(APIC_BASE + APIC_ID);
+ unsigned int reg;
+
+ reg = *(u32 *)(APIC_BASE + APIC_ID);
+
+ return GET_APIC_ID(reg);
}
#endif
@@ -182,11 +187,11 @@ static inline unsigned int read_apic_id(
# if defined(APIC_DEFINITION) || defined(CONFIG_X86_64)
extern int hard_smp_processor_id(void);
# else
-# include <mach_apicdef.h>
+#include <mach_apicdef.h>
static inline int hard_smp_processor_id(void)
{
/* we don't want to mark this access volatile - bad code generation */
- return GET_APIC_ID(read_apic_id());
+ return read_apic_id();
}
# endif /* APIC_DEFINITION */
--
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