search for: l1e_get_flags

This patch series restores the use of superpages when restoring or migrating a VM, while retaining efficient batching of 4k pages when superpages are not appropriate or available. Signed-off-by: George Dunlap <george.dunlap@eu.citrix.com> _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel

There has been some progress, but still no joy. Definitely not intended for inclusion at this point. Tim, Wei, I added a Xen command line toggle to disable IOMMU and P2M table sharing. Tim, I verified that changes to p2m-pt.c don''t break shadow mode (64bit hypervisor and Win 7 guest). Hongkaixing, I incorporated your suggestion in patch 2, so I should add your Signed-off-by eventually.

...=============== --- 2007-05-14.orig/xen/arch/x86/mm.c 2007-05-14 13:43:50.000000000 +0200 +++ 2007-05-14/xen/arch/x86/mm.c 2007-05-14 13:44:25.000000000 +0200 @@ -3238,13 +3238,14 @@ static int ptwr_emulated_update( /* We are looking only for read-only mappings of p.t. pages. */ ASSERT((l1e_get_flags(pte) & (_PAGE_RW|_PAGE_PRESENT)) == _PAGE_PRESENT); + ASSERT(mfn_valid(mfn)); ASSERT((page->u.inuse.type_info & PGT_type_mask) == PGT_l1_page_table); ASSERT((page->u.inuse.type_info & PGT_count_mask) != 0); ASSERT(page_get_owner(page) == d); /* Check the n...

This patch series includes a series of bugs related to p2m, ept, and PoD code which were found as part of our XenServer product testing. Each of these fixes actual bugs, and the 3.4-based version of the patch has been tested thoroughly. (There may be bugs in porting the patches, but most of them are simple enough as to make it unlikely.) Each patch is conceptually independent, so they can each

...mm.c --- a/xen/arch/x86/mm.c Fri Dec 01 16:21:46 2006 +0000 +++ b/xen/arch/x86/mm.c Fri Dec 01 16:22:41 2006 +0000 @@ -552,7 +552,7 @@ get_page_from_l1e( { unsigned long mfn = l1e_get_pfn(l1e); struct page_info *page = mfn_to_page(mfn); - int okay; + int okay, access; if ( !(l1e_get_flags(l1e) & _PAGE_PRESENT) ) return 1; @@ -570,11 +570,19 @@ get_page_from_l1e( if ( d == dom_io ) d = current->domain; - if ( !iomem_access_permitted(d, mfn, mfn) ) + if ( (access = iomem_access_permitted(d, mfn, mfn)) + == IOMEM_ACCESS_...

Hello, I''m new to Xen and especially to the hypervisor code. I''m working off a 3.0.4.1 base and have the following questions regarding the memory management code for an x86, 32-bit platform (capable of supporting PAE). I''m doing some research into providing grant table hypercall support from a Windows 2003 HVM. I have made all the necessary changes to allow the

...86/vmx.c Thu Jun 30 03:20:48 2005 +++ b/xen/arch/x86/vmx.c Thu Jun 30 04:08:50 2005 @@ -135,17 +135,20 @@ } #endif - if (!vmx_paging_enabled(current)) + if (!vmx_paging_enabled(current)){ handle_mmio(va, va); - + return 1; + } gpte = gva_to_gpte(va); if (!(l1e_get_flags(gpte) & _PAGE_PRESENT) ) return 0; gpa = l1e_get_paddr(gpte) + (va & ~PAGE_MASK); /* Use 1:1 page table to identify MMIO address space */ - if (mmio_space(gpa)) + if (mmio_space(gpa)){ handle_mmio(va, gpa); + return 1; + } result = sh...

1: correct LDT checks 2: add address validity check to guest_map_l1e() 3: use {rd,wr}{fs,gs}base when available 4: check for canonical address before doing page walks Signed-off-by: Jan Beulich <jbeulich@suse.com>

Hi, --- background ---------------------------------------------------- * what the makedumpfile is: To shorten the size of the dumpfile and the time of creating the dumpfile, makedumpfile copies only the necessary pages for analysis to the dumpfile from /proc/vmcore. You can specify the kind of unnecessary pages with dump_level. If you want to shorten the size further, enable the

Populate-on-demand: Check pages being returned by the balloon driver This patch series is the second result of my work last summer on decreasing fragmentation of superpages in a guests'' p2m when using populate-on-demand. This patch series is against 4.1; I''m posting it to get feedback on the viability of getting a ported version of this patch into 4.2. As with the previous

Hi, V6: The only change from V5 is in patch #6: - changed comment to reflect autoxlate - removed a redundant ASSERT - reworked logic a bit so that get_page_from_gfn() is called with NULL for p2m type as before. arm has ASSERT wanting it to be NULL. Tim: patch 4 needs your approval. Daniel: patch 5 needs your approval. These patches implement PVH dom0. Patches 1 and 2

This patch set adds XSM security labels to useful debugging output locations, and fixes some assumptions that all interrupts behaved like GSI interrupts (which had useful non-dynamic IDs). It also cleans up the policy build process and adds an example of how to use the user field in the security context. Debug output: [PATCH 01/10] xsm: Add security labels to event-channel dump [PATCH 02/10] xsm: