Displaying 6 results from an estimated 6 matches for "_page_pat".
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_page_pwt
2012 Feb 20
2
[PATCH] Disable PAT support when running under Xen (v1).
...e46..95c1cf6 100644
--- a/arch/x86/xen/mmu.c
+++ b/arch/x86/xen/mmu.c
@@ -415,13 +415,13 @@ static pteval_t iomap_pte(pteval_t val)
static pteval_t xen_pte_val(pte_t pte)
{
pteval_t pteval = pte.pte;
-
+#if 0
/* If this is a WC pte, convert back from Xen WC to Linux WC */
if ((pteval & (_PAGE_PAT | _PAGE_PCD | _PAGE_PWT)) == _PAGE_PAT) {
WARN_ON(!pat_enabled);
pteval = (pteval & ~_PAGE_PAT) | _PAGE_PWT;
}
-
+#endif
if (xen_initial_domain() && (pteval & _PAGE_IOMAP))
return pteval;
@@ -463,7 +463,7 @@ void xen_set_pat(u64 pat)
static pte_t xen_make_pte(pteval_...
2010 Aug 06
7
[GIT PULL] devel/pat + devel/kms.fixes-0.5
Hey Jeremy,
Please pull from devel/pat (based off your xen/dom0/core tree) which
has one patch:
Konrad Rzeszutek Wilk (1):
xen/pat: make pte_flags(x) a pvops function.
which is neccessary for the drivers/gpu/drm/radeon driver to work
properly with AGP based cards (which look to be the only ones that
try to set WC on pages).
Also please pull from devel/kms.fixes-05 (based off your
2013 May 02
5
[PATCH] x86: allow Dom0 read-only access to IO-APICs
There are BIOSes that want to map the IO-APIC MMIO region from some
ACPI method(s), and there is at least one BIOS flavor that wants to
use this mapping to clear an RTE''s mask bit. While we can''t allow the
latter, we can permit reads and simply drop write attempts, leveraging
the already existing infrastructure introduced for dealing with AMD
IOMMUs'' representation as
2008 Nov 04
7
[PATCH 1/1] Xen PV support for hugepages
...LLOW_MASK (BASE_DISALLOW_MASK)
#define L4_DISALLOW_MASK (BASE_DISALLOW_MASK)
--- xen-unstable//./xen/arch/x86/mm.c 2008-11-04 08:22:40.000000000 -0600
+++ xen-hpage/./xen/arch/x86/mm.c 2008-11-04 08:24:35.000000000 -0600
@@ -160,6 +160,9 @@ unsigned long total_pages;
#define PAGE_CACHE_ATTRS (_PAGE_PAT|_PAGE_PCD|_PAGE_PWT)
+int opt_allow_hugepage = 0;
+boolean_param("allowhugepage", opt_allow_hugepage);
+
#define l1_disallow_mask(d) \
((d != dom_io) && \
(rangeset_is_empty((d)->iomem_c...
2011 Mar 20
6
PATCH: Hugepage support for Domains booting with 4KB pages
We have implemented hugepage support for guests in following manner
In
our implementation we added a parameter hugepage_num which is specified
in the config file of the DomU. It is the number of hugepages that the
guest is guaranteed to receive whenever the kernel asks for hugepage by
using its boot time parameter or reserving after booting (eg. Using echo
XX > /proc/sys/vm/nr_hugepages).
2011 Jul 21
51
Linux Stubdom Problem
2011/7/19 Stefano Stabellini <stefano.stabellini@eu.citrix.com>:
> CC''ing Tim and xen-devel
>
> On Mon, 18 Jul 2011, Jiageng Yu wrote:
>> 2011/7/16 Stefano Stabellini <stefano.stabellini@eu.citrix.com>:
>> > On Fri, 15 Jul 2011, Jiageng Yu wrote:
>> >> 2011/7/15 Jiageng Yu <yujiageng734@gmail.com>:
>> >> > 2011/7/15