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| author | Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> | 2010-08-27 15:18:19 -0700 |
|---|---|---|
| committer | Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> | 2010-10-22 12:57:25 -0700 |
| commit | 33a847502b0338351cebd8fc0c68ac796cfadbbd (patch) | |
| tree | 58f1628db992d5b358042e5fac9eb2c5fd35bf5f /arch | |
| parent | c3798062f100c3e1d4ae1241bc536f3b1f28a6ca (diff) | |
| download | linux-33a847502b0338351cebd8fc0c68ac796cfadbbd.tar.gz linux-33a847502b0338351cebd8fc0c68ac796cfadbbd.tar.bz2 linux-33a847502b0338351cebd8fc0c68ac796cfadbbd.zip | |
xen: defer building p2m mfn structures until kernel is mapped
When building mfn parts of p2m structure, we rely on being able to
use mfn_to_virt, which in turn requires kernel to be mapped into
the linear area (which is distinct from the kernel image mapping
on 64-bit). Defer calling xen_build_mfn_list_list() until after
xen_setup_kernel_pagetable();
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/x86/xen/enlighten.c | 3 | ||||
| -rw-r--r-- | arch/x86/xen/mmu.c | 3 |
2 files changed, 3 insertions, 3 deletions
diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c index ee304b52d8b7..d8873014b5ed 100644 --- a/arch/x86/xen/enlighten.c +++ b/arch/x86/xen/enlighten.c @@ -1178,6 +1178,9 @@ asmlinkage void __init xen_start_kernel(void) xen_raw_console_write("mapping kernel into physical memory\n"); pgd = xen_setup_kernel_pagetable(pgd, xen_start_info->nr_pages); + /* Allocate and initialize top and mid mfn levels for p2m structure */ + xen_build_mfn_list_list(); + init_mm.pgd = pgd; /* keep using Xen gdt for now; no urgent need to change it */ diff --git a/arch/x86/xen/mmu.c b/arch/x86/xen/mmu.c index b96513437236..9b43bb398d37 100644 --- a/arch/x86/xen/mmu.c +++ b/arch/x86/xen/mmu.c @@ -374,9 +374,6 @@ void __init xen_build_dynamic_phys_to_machine(void) p2m_top[topidx][mididx] = &mfn_list[pfn]; } - - /* Allocate and initialize top and mid mfn levels */ - xen_build_mfn_list_list(); } unsigned long get_phys_to_machine(unsigned long pfn) |