| 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, 16 Jan 2008 23:15:03 +0100 (CET)
From: Andi Kleen <ak@...e.de>
To: linux-kernel@...r.kernel.org, mingo@...e.hu, tglx@...utronix.de,
jbeulich@...ell.com, venkatesh.pallipadi@...el.com
Subject: [PATCH] [5/36] CPA: Implement change_page_attr_addr entry point for i386
Similar to 64bit.
Needed by PAT patches. Replaces 5ec5c5a2302ca8794da03f8bedec931a2a814ae9
Note: should probably be put before PAT patches to avoid bisect failures later
Signed-off-by: Andi Kleen <ak@...e.de>
---
arch/x86/mm/pageattr_32.c | 15 +++++++++++++++
1 file changed, 15 insertions(+)
Index: linux/arch/x86/mm/pageattr_32.c
===================================================================
--- linux.orig/arch/x86/mm/pageattr_32.c
+++ linux/arch/x86/mm/pageattr_32.c
@@ -233,6 +233,21 @@ int change_page_attr(struct page *page,
return err;
}
+int change_page_attr_addr(unsigned long addr, int numpages, pgprot_t prot)
+{
+ int i;
+ unsigned long pfn = (addr >> PAGE_SHIFT);
+ for (i = 0; i < numpages; i++) {
+ if (!pfn_valid(pfn + i)) {
+ break;
+ } else {
+ pte_t *pte = lookup_address(addr + i*PAGE_SIZE);
+ BUG_ON(pte && !pte_none(*pte));
+ }
+ }
+ return change_page_attr(virt_to_page(addr), i, prot);
+}
+
void global_flush_tlb(void)
{
struct list_head l;
--
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