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| author |   David Vrabel <david.vrabel@citrix.com> | 2015-07-22 14:48:09 +0100 |
|---|---|---|
| committer | David Vrabel <david.vrabel@citrix.com> | 2015-10-23 14:20:28 +0100 |
| commit | 8edfcf882eb91ec9028c7334f90f6ef3db5b0fcf (patch) | |
| tree | 75ed19641906ab1774f4c4a180caaf6f703c1db5 /arch/x86/include/asm/xen | |
| parent | xen/balloon: use hotplugged pages for foreign mappings etc. (diff) | |
| download | linux-dev-8edfcf882eb91ec9028c7334f90f6ef3db5b0fcf.tar.xz linux-dev-8edfcf882eb91ec9028c7334f90f6ef3db5b0fcf.zip | |
x86/xen: export xen_alloc_p2m_entry()
Rename alloc_p2m() to xen_alloc_p2m_entry() and export it.
This is useful for ensuring that a p2m entry is allocated (i.e., not a
shared missing or identity entry) so that subsequent set_phys_to_machine()
calls will require no further allocations.
Signed-off-by: David Vrabel <david.vrabel@citrix.com>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
---
v3:
- Make xen_alloc_p2m_entry() a nop on auto-xlate guests.
Diffstat (limited to 'arch/x86/include/asm/xen')
| -rw-r--r-- | arch/x86/include/asm/xen/page.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/x86/include/asm/xen/page.h b/arch/x86/include/asm/xen/page.h index 0679e11d2cf7..b922fa4bb4a1 100644 --- a/arch/x86/include/asm/xen/page.h +++ b/arch/x86/include/asm/xen/page.h @@ -43,6 +43,8 @@ extern unsigned long *xen_p2m_addr; extern unsigned long xen_p2m_size; extern unsigned long xen_max_p2m_pfn; +extern int xen_alloc_p2m_entry(unsigned long pfn); + extern unsigned long get_phys_to_machine(unsigned long pfn); extern bool set_phys_to_machine(unsigned long pfn, unsigned long mfn); extern bool __set_phys_to_machine(unsigned long pfn, unsigned long mfn); |