Juergen Gross 90817d7838 xen/balloon: add late_initcall_sync() for initial ballooning done ... commit 40fdea0284 upstream. When running as PVH or HVM guest with actual memory < max memory the hypervisor is using "populate on demand" in order to allow the guest to balloon down from its maximum memory size. For this to work correctly the guest must not touch more memory pages than its target memory size as otherwise the PoD cache will be exhausted and the guest is crashed as a result of that. In extreme cases ballooning down might not be finished today before the init process is started, which can consume lots of memory. In order to avoid random boot crashes in such cases, add a late init call to wait for ballooning down having finished for PVH/HVM guests. Warn on console if initial ballooning fails, panic() after stalling for more than 3 minutes per default. Add a module parameter for changing this timeout. [boris: replaced pr_info() with pr_notice()] Cc: <stable@vger.kernel.org> Reported-by: Marek Marczykowski-Górecki <marmarek@invisiblethingslab.com> Signed-off-by: Juergen Gross <jgross@suse.com> Link: https://lore.kernel.org/r/20211102091944.17487-1-jgross@suse.com Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com> Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2021-11-18 19:16:04 +01:00
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events	xen/events: Fix race in set_evtchn_to_irq	2021-08-12 10:49:54 -05:00
xen-pciback	xen-pciback: reconfigure also from backend watch handler	2021-05-21 09:55:16 +02:00
xenbus	xen: branch for v5.15-rc1	2021-09-02 13:20:11 -07:00
xenfs
acpi.c
arm-device.c
balloon.c	xen/balloon: add late_initcall_sync() for initial ballooning done	2021-11-18 19:16:04 +01:00
biomerge.c
cpu_hotplug.c
dbgp.c
efi.c
evtchn.c
features.c	xen: check required Xen features	2021-08-30 11:57:45 +02:00
gntalloc.c
gntdev-common.h
gntdev-dmabuf.c
gntdev-dmabuf.h
gntdev.c	Xen/gntdev: don't ignore kernel unmapping error	2021-09-20 16:57:08 +02:00
grant-table.c
Kconfig	xen/x86: allow PVH Dom0 without XEN_PV=y	2021-10-05 08:35:56 +02:00
Makefile	xen: Remove support for PV ACPI cpu/memory hotplug	2021-04-23 09:31:50 +02:00
manage.c
mcelog.c
mem-reservation.c
pci.c
pcpu.c	xen: Use DEVICE_ATTR_*() macro	2021-07-05 09:23:31 +02:00
platform-pci.c
privcmd-buf.c
privcmd.c	xen/privcmd: drop "pages" parameter from xen_remap_pfn()	2021-10-05 08:20:27 +02:00
privcmd.h
pvcalls-back.c
pvcalls-front.c
pvcalls-front.h
swiotlb-xen.c	xen: branch for v5.15-rc3	2021-09-25 15:37:31 -07:00
sys-hypervisor.c
time.c
unpopulated-alloc.c	xen/unpopulated-alloc: fix error return code in fill_list()	2021-05-10 09:42:25 +02:00
xen-acpi-pad.c
xen-acpi-processor.c
xen-balloon.c	xen: Use DEVICE_ATTR_*() macro	2021-07-05 09:23:31 +02:00
xen-front-pgdir-shbuf.c
xen-scsiback.c	isystem: trim/fixup stdarg.h and other headers	2021-08-19 09:02:55 +09:00
xlate_mmu.c