---

yaml --- r: 247832 b: refs/heads/master c: d7dd2ff h: refs/heads/master v: v3
git-mirror · Apr 15, 2011 · 5d1d80b · 5d1d80b
1 parent aaaf135
commit 5d1d80b
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Showing 11 changed files with 173 additions and 147 deletions.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 2e7bad5f34b5beed47542490c760ed26574e38ba
+refs/heads/master: d7dd2ff11b7fcd425aca5a875983c862d19a67ae
diff --git a/trunk/arch/parisc/include/asm/pgtable.h b/trunk/arch/parisc/include/asm/pgtable.h
@@ -177,7 +177,10 @@ struct vm_area_struct;
 
 #define _PAGE_TABLE	(_PAGE_PRESENT | _PAGE_READ | _PAGE_WRITE |  _PAGE_DIRTY | _PAGE_ACCESSED)
 #define _PAGE_CHG_MASK	(PAGE_MASK | _PAGE_ACCESSED | _PAGE_DIRTY)
-#define _PAGE_KERNEL	(_PAGE_PRESENT | _PAGE_EXEC | _PAGE_READ | _PAGE_WRITE | _PAGE_DIRTY | _PAGE_ACCESSED)
+#define _PAGE_KERNEL_RO	(_PAGE_PRESENT | _PAGE_READ | _PAGE_DIRTY | _PAGE_ACCESSED)
+#define _PAGE_KERNEL_EXEC	(_PAGE_KERNEL_RO | _PAGE_EXEC)
+#define _PAGE_KERNEL_RWX	(_PAGE_KERNEL_EXEC | _PAGE_WRITE)
+#define _PAGE_KERNEL		(_PAGE_KERNEL_RO | _PAGE_WRITE)
 
 /* The pgd/pmd contains a ptr (in phys addr space); since all pgds/pmds
  * are page-aligned, we don't care about the PAGE_OFFSET bits, except
@@ -208,7 +211,9 @@ struct vm_area_struct;
 #define PAGE_COPY       PAGE_EXECREAD
 #define PAGE_RWX        __pgprot(_PAGE_PRESENT | _PAGE_USER | _PAGE_READ | _PAGE_WRITE | _PAGE_EXEC |_PAGE_ACCESSED)
 #define PAGE_KERNEL	__pgprot(_PAGE_KERNEL)
-#define PAGE_KERNEL_RO	__pgprot(_PAGE_KERNEL & ~_PAGE_WRITE)
+#define PAGE_KERNEL_EXEC	__pgprot(_PAGE_KERNEL_EXEC)
+#define PAGE_KERNEL_RWX	__pgprot(_PAGE_KERNEL_RWX)
+#define PAGE_KERNEL_RO	__pgprot(_PAGE_KERNEL_RO)
 #define PAGE_KERNEL_UNC	__pgprot(_PAGE_KERNEL | _PAGE_NO_CACHE)
 #define PAGE_GATEWAY    __pgprot(_PAGE_PRESENT | _PAGE_USER | _PAGE_ACCESSED | _PAGE_GATEWAY| _PAGE_READ)
 

diff --git a/trunk/arch/parisc/include/asm/unistd.h b/trunk/arch/parisc/include/asm/unistd.h
@@ -814,14 +814,8 @@
 #define __NR_recvmmsg		(__NR_Linux + 319)
 #define __NR_accept4		(__NR_Linux + 320)
 #define __NR_prlimit64		(__NR_Linux + 321)
-#define __NR_fanotify_init	(__NR_Linux + 322)
-#define __NR_fanotify_mark	(__NR_Linux + 323)
-#define __NR_clock_adjtime	(__NR_Linux + 324)
-#define __NR_name_to_handle_at	(__NR_Linux + 325)
-#define __NR_open_by_handle_at	(__NR_Linux + 326)
-#define __NR_syncfs		(__NR_Linux + 327)
-
-#define __NR_Linux_syscalls	(__NR_syncfs + 1)
+
+#define __NR_Linux_syscalls	(__NR_prlimit64 + 1)
 
 
 #define __IGNORE_select		/* newselect */

diff --git a/trunk/arch/parisc/kernel/entry.S b/trunk/arch/parisc/kernel/entry.S
@@ -692,6 +692,9 @@ ENTRY(fault_vector_11)
 END(fault_vector_11)
 
 #endif
+	/* Fault vector is separately protected and *must* be on its own page */
+	.align		PAGE_SIZE
+ENTRY(end_fault_vector)
 
 	.import		handle_interruption,code
 	.import		do_cpu_irq_mask,code

diff --git a/trunk/arch/parisc/kernel/head.S b/trunk/arch/parisc/kernel/head.S
@@ -106,8 +106,9 @@ $bss_loop:
 #endif
 
 
-	/* Now initialize the PTEs themselves */
-	ldo		0+_PAGE_KERNEL(%r0),%r3 /* Hardwired 0 phys addr start */
+	/* Now initialize the PTEs themselves.  We use RWX for
+	 * everything ... it will get remapped correctly later */
+	ldo		0+_PAGE_KERNEL_RWX(%r0),%r3 /* Hardwired 0 phys addr start */
 	ldi		(1<<(KERNEL_INITIAL_ORDER-PAGE_SHIFT)),%r11 /* PFN count */
 	load32		PA(pg0),%r1
 

diff --git a/trunk/arch/parisc/kernel/module.c b/trunk/arch/parisc/kernel/module.c
@@ -61,8 +61,10 @@
 #include <linux/string.h>
 #include <linux/kernel.h>
 #include <linux/bug.h>
+#include <linux/mm.h>
 #include <linux/slab.h>
 
+#include <asm/pgtable.h>
 #include <asm/unwind.h>
 
 #if 0
@@ -214,7 +216,13 @@ void *module_alloc(unsigned long size)
 {
 	if (size == 0)
 		return NULL;
-	return vmalloc(size);
+	/* using RWX means less protection for modules, but it's
+	 * easier than trying to map the text, data, init_text and
+	 * init_data correctly */
+	return __vmalloc_node_range(size, 1, VMALLOC_START, VMALLOC_END,
+				    GFP_KERNEL | __GFP_HIGHMEM,
+				    PAGE_KERNEL_RWX, -1,
+				    __builtin_return_address(0));
 }
 
 #ifndef CONFIG_64BIT

diff --git a/trunk/arch/parisc/kernel/pacache.S b/trunk/arch/parisc/kernel/pacache.S
@@ -817,7 +817,10 @@ ENTRY(purge_kernel_dcache_page)
 	.procend
 ENDPROC(purge_kernel_dcache_page)
 
-ENTRY(flush_user_dcache_range_asm)
+
+	.export flush_user_dcache_range_asm
+
+flush_user_dcache_range_asm:
 	.proc
 	.callinfo NO_CALLS
 	.entry
@@ -836,7 +839,6 @@ ENTRY(flush_user_dcache_range_asm)
 	.exit
 
 	.procend
-ENDPROC(flush_user_dcache_range_asm)
 
 ENTRY(flush_kernel_dcache_range_asm)
 	.proc

diff --git a/trunk/arch/parisc/kernel/sys_parisc32.c b/trunk/arch/parisc/kernel/sys_parisc32.c
@@ -228,11 +228,3 @@ asmlinkage long compat_sys_fallocate(int fd, int mode, u32 offhi, u32 offlo,
         return sys_fallocate(fd, mode, ((loff_t)offhi << 32) | offlo,
                              ((loff_t)lenhi << 32) | lenlo);
 }
-
-asmlinkage long compat_sys_fanotify_mark(int fan_fd, int flags, u32 mask_hi,
-					 u32 mask_lo, int fd,
-					 const char __user *pathname)
-{
-	return sys_fanotify_mark(fan_fd, flags, ((u64)mask_hi << 32) | mask_lo,
-				 fd, pathname);
-}
diff --git a/trunk/arch/parisc/kernel/syscall_table.S b/trunk/arch/parisc/kernel/syscall_table.S
@@ -420,12 +420,6 @@
 	ENTRY_COMP(recvmmsg)
 	ENTRY_SAME(accept4)		/* 320 */
 	ENTRY_SAME(prlimit64)
-	ENTRY_SAME(fanotify_init)
-	ENTRY_COMP(fanotify_mark)
-	ENTRY_COMP(clock_adjtime)
-	ENTRY_SAME(name_to_handle_at)	/* 325 */
-	ENTRY_COMP(open_by_handle_at)
-	ENTRY_SAME(syncfs)
 
 	/* Nothing yet */
 

diff --git a/trunk/arch/parisc/kernel/vmlinux.lds.S b/trunk/arch/parisc/kernel/vmlinux.lds.S
@@ -134,6 +134,7 @@ SECTIONS
 	. = ALIGN(16384);
 	__init_begin = .;
 	INIT_TEXT_SECTION(16384)
+	. = ALIGN(PAGE_SIZE);
 	INIT_DATA_SECTION(16)
 	/* we have to discard exit text and such at runtime, not link time */
 	.exit.text :