linux_old1/arch/x86/include/asm/xen
Juergen Gross 1f3ac86b4c xen: Delay remapping memory of pv-domain
Early in the boot process the memory layout of a pv-domain is changed
to match the E820 map (either the host one for Dom0 or the Xen one)
regarding placement of RAM and PCI holes. This requires removing memory
pages initially located at positions not suitable for RAM and adding
them later at higher addresses where no restrictions apply.

To be able to operate on the hypervisor supported p2m list until a
virtual mapped linear p2m list can be constructed, remapping must
be delayed until virtual memory management is initialized, as the
initial p2m list can't be extended unlimited at physical memory
initialization time due to it's fixed structure.

A further advantage is the reduction in complexity and code volume as
we don't have to be careful regarding memory restrictions during p2m
updates.

Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: David Vrabel <david.vrabel@citrix.com>
Signed-off-by: David Vrabel <david.vrabel@citrix.com>
2014-12-04 14:08:48 +00:00
..
cpuid.h xen/pci: Use APIC directly when APIC virtualization hardware is available 2014-12-04 13:02:43 +00:00
events.h xen: Support 64-bit PV guest receiving NMIs 2013-08-09 10:55:47 -04:00
hypercall.h arm: xen: implement multicall hypercall support. 2014-04-24 13:09:46 +01:00
hypervisor.h xen: Switch to use hypervisor_cpuid_base() 2013-08-05 06:34:09 -07:00
interface.h arm: xen: implement multicall hypercall support. 2014-04-24 13:09:46 +01:00
interface_32.h xen: implement XENMEM_machphys_mapping 2010-11-12 15:00:06 -08:00
interface_64.h xen: implement XENMEM_machphys_mapping 2010-11-12 15:00:06 -08:00
page-coherent.h xen: add a dma_addr_t dev_addr argument to xen_dma_map_page 2014-12-04 12:41:51 +00:00
page.h xen: Delay remapping memory of pv-domain 2014-12-04 14:08:48 +00:00
pci.h xen/pci: Squash pci_xen_initial_domain and xen_setup_pirqs together. 2011-07-11 13:19:30 -04:00
swiotlb-xen.h xen/swiotlb: Use the swiotlb_late_init_with_tbl to init Xen-SWIOTLB late when PV PCI is used. 2012-09-17 12:58:16 -04:00
trace_types.h xen/trace: add multicall tracing 2011-07-18 15:43:26 -07:00