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-rw-r--r--arch/um/Kconfig10
-rw-r--r--arch/um/Kconfig.x86_645
-rw-r--r--arch/um/Makefile-i38612
-rw-r--r--arch/um/drivers/net_kern.c1
-rw-r--r--arch/um/drivers/ubd_kern.c1
-rw-r--r--arch/um/include/sysdep-i386/syscalls.h1
-rw-r--r--arch/um/include/sysdep-i386/thread.h2
-rw-r--r--arch/um/include/sysdep-x86_64/thread.h2
-rw-r--r--arch/um/include/tlb.h1
-rw-r--r--arch/um/kernel/mem.c2
-rw-r--r--arch/um/kernel/process_kern.c10
-rw-r--r--arch/um/kernel/skas/mmu.c4
-rw-r--r--arch/um/kernel/time_kern.c4
-rw-r--r--arch/um/kernel/tt/tlb.c36
14 files changed, 32 insertions, 59 deletions
diff --git a/arch/um/Kconfig b/arch/um/Kconfig
index 684e1f8b275..cd06ed7d842 100644
--- a/arch/um/Kconfig
+++ b/arch/um/Kconfig
@@ -27,10 +27,6 @@ config UID16
bool
default y
-config RWSEM_GENERIC_SPINLOCK
- bool
- default y
-
config GENERIC_CALIBRATE_DELAY
bool
default y
@@ -40,6 +36,12 @@ config IRQ_RELEASE_METHOD
bool
default y
+menu "Host processor type and features"
+
+source "arch/i386/Kconfig.cpu"
+
+endmenu
+
menu "UML-specific options"
config MODE_TT
diff --git a/arch/um/Kconfig.x86_64 b/arch/um/Kconfig.x86_64
index bd35e59419c..aae19bc4b06 100644
--- a/arch/um/Kconfig.x86_64
+++ b/arch/um/Kconfig.x86_64
@@ -6,6 +6,11 @@ config 64BIT
bool
default y
+#XXX: this is so in the underlying arch, but it's wrong!!!
+config RWSEM_GENERIC_SPINLOCK
+ bool
+ default y
+
config SEMAPHORE_SLEEPERS
bool
default y
diff --git a/arch/um/Makefile-i386 b/arch/um/Makefile-i386
index 2ee8a285811..aef7c50f8e1 100644
--- a/arch/um/Makefile-i386
+++ b/arch/um/Makefile-i386
@@ -29,6 +29,12 @@ endif
CFLAGS += -U__$(SUBARCH)__ -U$(SUBARCH)
-ifneq ($(CONFIG_GPROF),y)
-ARCH_CFLAGS += -DUM_FASTCALL
-endif
+# First of all, tune CFLAGS for the specific CPU. This actually sets cflags-y.
+include $(srctree)/arch/i386/Makefile.cpu
+
+# prevent gcc from keeping the stack 16 byte aligned. Taken from i386.
+cflags-y += $(call cc-option,-mpreferred-stack-boundary=2)
+
+CFLAGS += $(cflags-y)
+USER_CFLAGS += $(cflags-y)
+
diff --git a/arch/um/drivers/net_kern.c b/arch/um/drivers/net_kern.c
index 1495007bf6c..721e2601a75 100644
--- a/arch/um/drivers/net_kern.c
+++ b/arch/um/drivers/net_kern.c
@@ -20,6 +20,7 @@
#include "linux/ctype.h"
#include "linux/bootmem.h"
#include "linux/ethtool.h"
+#include "linux/platform_device.h"
#include "asm/uaccess.h"
#include "user_util.h"
#include "kern_util.h"
diff --git a/arch/um/drivers/ubd_kern.c b/arch/um/drivers/ubd_kern.c
index f73134333f6..b2c86257b0f 100644
--- a/arch/um/drivers/ubd_kern.c
+++ b/arch/um/drivers/ubd_kern.c
@@ -35,6 +35,7 @@
#include "linux/blkpg.h"
#include "linux/genhd.h"
#include "linux/spinlock.h"
+#include "linux/platform_device.h"
#include "asm/segment.h"
#include "asm/uaccess.h"
#include "asm/irq.h"
diff --git a/arch/um/include/sysdep-i386/syscalls.h b/arch/um/include/sysdep-i386/syscalls.h
index a0d5b74d373..57bd79efbee 100644
--- a/arch/um/include/sysdep-i386/syscalls.h
+++ b/arch/um/include/sysdep-i386/syscalls.h
@@ -11,7 +11,6 @@ typedef long syscall_handler_t(struct pt_regs);
/* Not declared on x86, incompatible declarations on x86_64, so these have
* to go here rather than in sys_call_table.c
*/
-extern syscall_handler_t sys_ptrace;
extern syscall_handler_t sys_rt_sigaction;
extern syscall_handler_t old_mmap_i386;
diff --git a/arch/um/include/sysdep-i386/thread.h b/arch/um/include/sysdep-i386/thread.h
index e2bd6bae8b8..243fed44d78 100644
--- a/arch/um/include/sysdep-i386/thread.h
+++ b/arch/um/include/sysdep-i386/thread.h
@@ -4,7 +4,7 @@
#include <kern_constants.h>
#define TASK_DEBUGREGS(task) ((unsigned long *) &(((char *) (task))[HOST_TASK_DEBUGREGS]))
-#ifdef CONFIG_MODE_TT
+#ifdef UML_CONFIG_MODE_TT
#define TASK_EXTERN_PID(task) *((int *) &(((char *) (task))[HOST_TASK_EXTERN_PID]))
#endif
diff --git a/arch/um/include/sysdep-x86_64/thread.h b/arch/um/include/sysdep-x86_64/thread.h
index 6a76a7f3683..cbef3e1697f 100644
--- a/arch/um/include/sysdep-x86_64/thread.h
+++ b/arch/um/include/sysdep-x86_64/thread.h
@@ -3,7 +3,7 @@
#include <kern_constants.h>
-#ifdef CONFIG_MODE_TT
+#ifdef UML_CONFIG_MODE_TT
#define TASK_EXTERN_PID(task) *((int *) &(((char *) (task))[HOST_TASK_EXTERN_PID]))
#endif
diff --git a/arch/um/include/tlb.h b/arch/um/include/tlb.h
index 45d7da6c3b2..8efc1e0f1b8 100644
--- a/arch/um/include/tlb.h
+++ b/arch/um/include/tlb.h
@@ -34,7 +34,6 @@ struct host_vm_op {
} u;
};
-extern void mprotect_kernel_vm(int w);
extern void force_flush_all(void);
extern void fix_range_common(struct mm_struct *mm, unsigned long start_addr,
unsigned long end_addr, int force,
diff --git a/arch/um/kernel/mem.c b/arch/um/kernel/mem.c
index ea008b031a8..462cc9d6538 100644
--- a/arch/um/kernel/mem.c
+++ b/arch/um/kernel/mem.c
@@ -252,7 +252,7 @@ void paging_init(void)
#endif
}
-struct page *arch_validate(struct page *page, int mask, int order)
+struct page *arch_validate(struct page *page, gfp_t mask, int order)
{
unsigned long addr, zero = 0;
int i;
diff --git a/arch/um/kernel/process_kern.c b/arch/um/kernel/process_kern.c
index ea65db679e9..34b54a3e213 100644
--- a/arch/um/kernel/process_kern.c
+++ b/arch/um/kernel/process_kern.c
@@ -80,7 +80,7 @@ void free_stack(unsigned long stack, int order)
unsigned long alloc_stack(int order, int atomic)
{
unsigned long page;
- int flags = GFP_KERNEL;
+ gfp_t flags = GFP_KERNEL;
if (atomic)
flags = GFP_ATOMIC;
@@ -222,6 +222,7 @@ void *um_virt_to_phys(struct task_struct *task, unsigned long addr,
pud_t *pud;
pmd_t *pmd;
pte_t *pte;
+ pte_t ptent;
if(task->mm == NULL)
return(ERR_PTR(-EINVAL));
@@ -238,12 +239,13 @@ void *um_virt_to_phys(struct task_struct *task, unsigned long addr,
return(ERR_PTR(-EINVAL));
pte = pte_offset_kernel(pmd, addr);
- if(!pte_present(*pte))
+ ptent = *pte;
+ if(!pte_present(ptent))
return(ERR_PTR(-EINVAL));
if(pte_out != NULL)
- *pte_out = *pte;
- return((void *) (pte_val(*pte) & PAGE_MASK) + (addr & ~PAGE_MASK));
+ *pte_out = ptent;
+ return((void *) (pte_val(ptent) & PAGE_MASK) + (addr & ~PAGE_MASK));
}
char *current_cmd(void)
diff --git a/arch/um/kernel/skas/mmu.c b/arch/um/kernel/skas/mmu.c
index 240143b616a..9e5e39cea82 100644
--- a/arch/um/kernel/skas/mmu.c
+++ b/arch/um/kernel/skas/mmu.c
@@ -28,7 +28,6 @@ static int init_stub_pte(struct mm_struct *mm, unsigned long proc,
pmd_t *pmd;
pte_t *pte;
- spin_lock(&mm->page_table_lock);
pgd = pgd_offset(mm, proc);
pud = pud_alloc(mm, pgd, proc);
if (!pud)
@@ -63,7 +62,6 @@ static int init_stub_pte(struct mm_struct *mm, unsigned long proc,
*pte = mk_pte(virt_to_page(kernel), __pgprot(_PAGE_PRESENT));
*pte = pte_mkexec(*pte);
*pte = pte_wrprotect(*pte);
- spin_unlock(&mm->page_table_lock);
return(0);
out_pmd:
@@ -71,7 +69,6 @@ static int init_stub_pte(struct mm_struct *mm, unsigned long proc,
out_pte:
pmd_free(pmd);
out:
- spin_unlock(&mm->page_table_lock);
return(-ENOMEM);
}
@@ -147,6 +144,7 @@ void destroy_context_skas(struct mm_struct *mm)
if(!proc_mm || !ptrace_faultinfo){
free_page(mmu->id.stack);
+ pte_lock_deinit(virt_to_page(mmu->last_page_table));
pte_free_kernel((pte_t *) mmu->last_page_table);
dec_page_state(nr_page_table_pages);
#ifdef CONFIG_3_LEVEL_PGTABLES
diff --git a/arch/um/kernel/time_kern.c b/arch/um/kernel/time_kern.c
index 4e08f7545d6..020ca79b8d3 100644
--- a/arch/um/kernel/time_kern.c
+++ b/arch/um/kernel/time_kern.c
@@ -22,10 +22,6 @@
#include "mode.h"
#include "os.h"
-u64 jiffies_64 = INITIAL_JIFFIES;
-
-EXPORT_SYMBOL(jiffies_64);
-
int hz(void)
{
return(HZ);
diff --git a/arch/um/kernel/tt/tlb.c b/arch/um/kernel/tt/tlb.c
index f1d85dbb45b..ae6217c8613 100644
--- a/arch/um/kernel/tt/tlb.c
+++ b/arch/um/kernel/tt/tlb.c
@@ -74,42 +74,6 @@ void flush_tlb_kernel_range_tt(unsigned long start, unsigned long end)
atomic_inc(&vmchange_seq);
}
-static void protect_vm_page(unsigned long addr, int w, int must_succeed)
-{
- int err;
-
- err = protect_memory(addr, PAGE_SIZE, 1, w, 1, must_succeed);
- if(err == 0) return;
- else if((err == -EFAULT) || (err == -ENOMEM)){
- flush_tlb_kernel_range(addr, addr + PAGE_SIZE);
- protect_vm_page(addr, w, 1);
- }
- else panic("protect_vm_page : protect failed, errno = %d\n", err);
-}
-
-void mprotect_kernel_vm(int w)
-{
- struct mm_struct *mm;
- pgd_t *pgd;
- pud_t *pud;
- pmd_t *pmd;
- pte_t *pte;
- unsigned long addr;
-
- mm = &init_mm;
- for(addr = start_vm; addr < end_vm;){
- pgd = pgd_offset(mm, addr);
- pud = pud_offset(pgd, addr);
- pmd = pmd_offset(pud, addr);
- if(pmd_present(*pmd)){
- pte = pte_offset_kernel(pmd, addr);
- if(pte_present(*pte)) protect_vm_page(addr, w, 0);
- addr += PAGE_SIZE;
- }
- else addr += PMD_SIZE;
- }
-}
-
void flush_tlb_kernel_vm_tt(void)
{
flush_tlb_kernel_range(start_vm, end_vm);
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-07 02:21:01 +0000