Displaying 3 results from an estimated 3 matches for "sh_remove_all_mappings".
2009 Oct 23
0
[PATCH] Shadow dirty-VRAM: avoid multiple remove_all_mappings calls.
sh_remove_all_mappings() will walk roughly half of the shadow L1 tables
for each MFN it''s called with; calling it for every MFN in a guest''s
framebuffer can be _very_ expensive, especially with the shadow lock
held across the whole operation. Avoid that by just blowing away all
the shadows.
Signed-off...
2012 Jul 26
3
About revoke write access of all the shadows
Hi all,
Recently, I read codes about the shadow page table. I''m wondering whether the kernel has provided the function to revoke write access of all the shadows of one domain. If you know one with this function, please tell me about it. Thanks.
BTW, I have my own idea to implement this. My idea is as follows:
void sh_revoke_write_access_all(struct domain *d)
{
2007 Jul 02
3
Walking an HVM''s shadow page tables and other memory management questions.
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