From: Olaf Hering <olaf@aepfle.de>
To: xen-devel@lists.xensource.com
Subject: [PATCH 03 of 10] xenpaging: mmap guest pages read-only
Date: Mon, 30 Jan 2012 16:59:26 +0100 [thread overview]
Message-ID: <dcf9cca8e1d5121782ea.1327939166@probook.site> (raw)
In-Reply-To: <patchbomb.1327939163@probook.site>
# HG changeset patch
# User Olaf Hering <olaf@aepfle.de>
# Date 1327937794 -3600
# Node ID dcf9cca8e1d5121782ea96dc183f52ff0cee2251
# Parent 55b2e9676a5a871833e6c57ec3b424c70f15af2b
xenpaging: mmap guest pages read-only
xenpaging does not write to the gfn, so map the gfn to page-out in
read-only mode.
Signed-off-by: Olaf Hering <olaf@aepfle.de>
diff -r 55b2e9676a5a -r dcf9cca8e1d5 tools/xenpaging/xenpaging.c
--- a/tools/xenpaging/xenpaging.c
+++ b/tools/xenpaging/xenpaging.c
@@ -585,7 +585,7 @@ static int xenpaging_evict_page(struct x
/* Map page */
ret = -EFAULT;
- page = xc_map_foreign_pages(xch, paging->mem_event.domain_id, PROT_READ | PROT_WRITE, &victim, 1);
+ page = xc_map_foreign_pages(xch, paging->mem_event.domain_id, PROT_READ, &victim, 1);
if ( page == NULL )
{
PERROR("Error mapping page %lx", gfn);
next prev parent reply other threads:[~2012-01-30 15:59 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-01-30 15:59 [PATCH 00 of 10] tools/xenpaging: cleanups and performance improvements Olaf Hering
2012-01-30 15:59 ` [PATCH 01 of 10] xenpaging: use flat index for pagefile and page-in requests Olaf Hering
2012-01-30 15:59 ` [PATCH 02 of 10] xenpaging: no poll timeout while page-out is in progress Olaf Hering
2012-01-30 15:59 ` Olaf Hering [this message]
2012-01-30 15:59 ` [PATCH 04 of 10] xenpaging: reduce number of qemu cache flushes Olaf Hering
2012-01-30 15:59 ` [PATCH 05 of 10] xenpaging: move nominate+evict into single function Olaf Hering
2012-01-30 15:59 ` [PATCH 06 of 10] xenpaging: improve performance in policy_choose_victim Olaf Hering
2012-02-14 21:08 ` Olaf Hering
2012-02-20 17:25 ` [PATCH 06 of 10] xenpaging: improve performance in policy_choose_victim [and 1 more messages] Ian Jackson
2012-02-20 18:48 ` Olaf Hering
2012-01-30 15:59 ` [PATCH 07 of 10] xenpaging: unify error handling Olaf Hering
2012-01-30 15:59 ` [PATCH 08 of 10] xenpaging: move pagefile filedescriptor into struct xenpaging Olaf Hering
2012-01-30 15:59 ` [PATCH 09 of 10] xenpaging: move page_buffer " Olaf Hering
2012-01-30 15:59 ` [PATCH 10 of 10] xenpaging: implement stack of free slots in pagefile Olaf Hering
2012-02-09 17:57 ` [PATCH 00 of 10] tools/xenpaging: cleanups and performance improvements Ian Jackson
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