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| author | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2012-09-07 09:48:59 +1000 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2012-09-07 09:48:59 +1000 |
| commit | fff34b3412b9401a76ba9d021db1bd91cb0e02b6 (patch) | |
| tree | 870ed2d1555004e7939d15b5099017aae61c97b8 /arch/x86/xen/setup.c | |
| parent | 28e1e58fb668e262648fb8ee8a24154633f40507 (diff) | |
| parent | 636802ef96eebe279b22ad9f9dacfe29291e45c7 (diff) | |
Merge branch 'merge' into next
Brings in various bug fixes from 3.6-rcX
Diffstat (limited to 'arch/x86/xen/setup.c')
| -rw-r--r-- | arch/x86/xen/setup.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/arch/x86/xen/setup.c b/arch/x86/xen/setup.c index ead85576d54a..d11ca11d14fc 100644 --- a/arch/x86/xen/setup.c +++ b/arch/x86/xen/setup.c @@ -78,9 +78,16 @@ static void __init xen_add_extra_mem(u64 start, u64 size) memblock_reserve(start, size); xen_max_p2m_pfn = PFN_DOWN(start + size); + for (pfn = PFN_DOWN(start); pfn < xen_max_p2m_pfn; pfn++) { + unsigned long mfn = pfn_to_mfn(pfn); + + if (WARN(mfn == pfn, "Trying to over-write 1-1 mapping (pfn: %lx)\n", pfn)) + continue; + WARN(mfn != INVALID_P2M_ENTRY, "Trying to remove %lx which has %lx mfn!\n", + pfn, mfn); - for (pfn = PFN_DOWN(start); pfn <= xen_max_p2m_pfn; pfn++) __set_phys_to_machine(pfn, INVALID_P2M_ENTRY); + } } static unsigned long __init xen_do_chunk(unsigned long start, |