Juergen Gross 1d988ed465 x86/xen: dont add memory above max allowed allocation ... Don't allow memory to be added above the allowed maximum allocation limit set by Xen. Trying to do so would result in cases like the following: [ 584.559652] ------------[ cut here ]------------ [ 584.564897] WARNING: CPU: 2 PID: 1 at ../arch/x86/xen/multicalls.c:129 xen_alloc_pte+0x1c7/0x390() [ 584.575151] Modules linked in: [ 584.578643] Supported: Yes [ 584.581750] CPU: 2 PID: 1 Comm: swapper/0 Not tainted 4.4.120-92.70-default #1 [ 584.590000] Hardware name: Cisco Systems Inc UCSC-C460-M4/UCSC-C460-M4, BIOS C460M4.4.0.1b.0.0629181419 06/29/2018 [ 584.601862] 0000000000000000 ffffffff813175a0 0000000000000000 ffffffff8184777c [ 584.610200] ffffffff8107f4e1 ffff880487eb7000 ffff8801862b79c0 ffff88048608d290 [ 584.618537] 0000000000487eb7 ffffea0000000201 ffffffff81009de7 ffffffff81068561 [ 584.626876] Call Trace: [ 584.629699] [<ffffffff81019ad9>] dump_trace+0x59/0x340 [ 584.635645] [<ffffffff81019eaa>] show_stack_log_lvl+0xea/0x170 [ 584.642391] [<ffffffff8101ac51>] show_stack+0x21/0x40 [ 584.648238] [<ffffffff813175a0>] dump_stack+0x5c/0x7c [ 584.654085] [<ffffffff8107f4e1>] warn_slowpath_common+0x81/0xb0 [ 584.660932] [<ffffffff81009de7>] xen_alloc_pte+0x1c7/0x390 [ 584.667289] [<ffffffff810647f0>] pmd_populate_kernel.constprop.6+0x40/0x80 [ 584.675241] [<ffffffff815ecfe8>] phys_pmd_init+0x210/0x255 [ 584.681587] [<ffffffff815ed207>] phys_pud_init+0x1da/0x247 [ 584.687931] [<ffffffff815edb3b>] kernel_physical_mapping_init+0xf5/0x1d4 [ 584.695682] [<ffffffff815e9bdd>] init_memory_mapping+0x18d/0x380 [ 584.702631] [<ffffffff81064699>] arch_add_memory+0x59/0xf0 Signed-off-by: Juergen Gross <jgross@suse.com> Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com> Signed-off-by: Juergen Gross <jgross@suse.com>		2019-02-18 06:52:51 +01:00
..
arm	arm64/xen: fix xen-swiotlb cache flushing	2019-01-23 22:14:56 +01:00
interface	xen/pvh: Add memory map pointer to hvm_start_info struct	2018-12-13 13:41:49 -05:00
acpi.h
balloon.h	Revert "xen/balloon: Mark unallocated host memory as UNUSABLE"	2018-11-29 17:53:31 +01:00
events.h	x86/xen: Move pv irq related functions under CONFIG_XEN_PV umbrella	2018-09-03 16:50:32 +02:00
features.h
grant_table.h	xen/grant-table: Allow allocating buffers suitable for DMA	2018-07-26 23:05:14 -04:00
hvc-console.h
hvm.h
mem-reservation.h	xen/balloon: add runtime control for scrubbing ballooned out pages	2018-09-14 08:51:10 -04:00
page.h
platform_pci.h
swiotlb-xen.h
tmem.h
xen-front-pgdir-shbuf.h	xen: Introduce shared buffer helpers for page directory...	2018-12-18 12:15:55 -05:00
xen-ops.h	CONFIG_XEN_PV breaks xen_create_contiguous_region on ARM	2018-11-02 17:18:34 +01:00
xen.h	x86/xen: dont add memory above max allowed allocation	2019-02-18 06:52:51 +01:00
xenbus_dev.h
xenbus.h