David Vrabel 98dd166ea3 x86/xen/p2m: hint at the last populated P2M entry ... With commit 633d6f17cd (x86/xen: prepare p2m list for memory hotplug) the P2M may be sized to accomdate a much larger amount of memory than the domain currently has. When saving a domain, the toolstack must scan all the P2M looking for populated pages. This results in a performance regression due to the unnecessary scanning. Instead of reporting (via shared_info) the maximum possible size of the P2M, hint at the last PFN which might be populated. This hint is increased as new leaves are added to the P2M (in the expectation that they will be used for populated entries). Signed-off-by: David Vrabel <david.vrabel@citrix.com> Cc: <stable@vger.kernel.org> # 4.0+		2015-10-06 13:54:20 +01:00
..
apic.c	xen/PMU: Intercept PMU-related MSR and APIC accesses	2015-08-20 12:25:25 +01:00
debugfs.c
debugfs.h
efi.c
enlighten.c	x86/xen: Support kexec/kdump in HVM guests by doing a soft reset	2015-09-28 14:48:52 +01:00
grant-table.c
irq.c
Kconfig	xen: features and fixes for 4.3-rc0	2015-09-08 11:46:48 -07:00
Makefile	xen/PMU: Initialization code for Xen PMU	2015-08-20 12:25:20 +01:00
mmu.c	xen/privcmd: Further s/MFN/GFN/ clean-up	2015-09-08 18:03:54 +01:00
mmu.h
multicalls.c
multicalls.h
p2m.c	x86/xen/p2m: hint at the last populated P2M entry	2015-10-06 13:54:20 +01:00
pci-swiotlb-xen.c
platform-pci-unplug.c	x86/xen: fix non-ANSI declaration of xen_has_pv_devices()	2015-08-20 12:24:13 +01:00
pmu.c	xen/PMU: PMU emulation code	2015-08-20 12:25:26 +01:00
pmu.h	xen/PMU: Intercept PMU-related MSR and APIC accesses	2015-08-20 12:25:25 +01:00
setup.c	x86/xen: Do not clip xen_e820_map to xen_e820_map_entries when sanitizing map	2015-09-28 18:03:38 +01:00
smp.c	xen: Use correctly the Xen memory terminologies	2015-09-08 18:03:49 +01:00
smp.h
spinlock.c	locking/pvqspinlock: Rename QUEUED_SPINLOCK to QUEUED_SPINLOCKS	2015-05-11 09:52:09 +02:00
suspend.c	xen/PMU: Initialization code for Xen PMU	2015-08-20 12:25:20 +01:00
time.c	x86/xen/time: Migrate to new set-state interface	2015-07-30 21:25:38 +02:00
trace.c
vdso.h
vga.c
xen-asm_32.S
xen-asm_64.S	x86/asm/entry: Untangle 'system_call' into two entry points: entry_SYSCALL_64 and entry_INT80_32	2015-06-08 09:14:21 +02:00
xen-asm.h
xen-asm.S
xen-head.S	xen: eliminate scalability issues from initial mapping setup	2015-08-20 12:24:18 +01:00
xen-ops.h	xen: move p2m list if conflicting with e820 map	2015-08-20 12:24:24 +01:00