Roger Pau Monne 047ea5a8fe xen/privcmd: allow fetching resource sizes ... commit ef3a575baf53571dc405ee4028e26f50856898e7 upstream. Allow issuing an IOCTL_PRIVCMD_MMAP_RESOURCE ioctl with num = 0 and addr = 0 in order to fetch the size of a specific resource. Add a shortcut to the default map resource path, since fetching the size requires no address to be passed in, and thus no VMA to setup. This is missing from the initial implementation, and causes issues when mapping resources that don't have fixed or known sizes. Signed-off-by: Roger Pau Monné <roger.pau@citrix.com> Reviewed-by: Juergen Gross <jgross@suse.com> Tested-by: Andrew Cooper <andrew.cooper3@citrix.com> Cc: stable@vger.kernel.org # >= 4.18 Link: https://lore.kernel.org/r/20210112115358.23346-1-roger.pau@citrix.com Signed-off-by: Juergen Gross <jgross@suse.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2021-01-19 18:27:21 +01:00
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events	xen/events: unmask a fifo event channel only if it was masked	2020-10-23 05:41:25 -05:00
xen-pciback	xen/xenbus: Add 'will_handle' callback support in xenbus_watch_path()	2020-12-30 11:54:26 +01:00
xenbus	xenbus/xenbus_backend: Disallow pending watch messages	2020-12-30 11:54:27 +01:00
xenfs
acpi.c
arm-device.c
balloon.c	xen/balloon: try to merge system ram resources	2020-10-16 11:11:18 -07:00
biomerge.c
cpu_hotplug.c	xen/cpuhotplug: Fix initial CPU offlining for PV(H) guests	2020-05-21 13:01:45 -05:00
dbgp.c
efi.c
evtchn.c	xen/events: switch user event channels to lateeoi model	2020-10-20 10:22:11 +02:00
features.c
gntalloc.c
gntdev-common.h	xen: Use evtchn_type_t as a type for event channels	2020-04-07 12:12:54 +02:00
gntdev-dmabuf.c	xen: gntdev: fix common struct sg_table related issues	2020-09-10 08:18:35 +02:00
gntdev-dmabuf.h
gntdev.c	xen/gntdev.c: Convert get_user_pages*() to pin_user_pages*()	2020-10-04 18:41:33 -05:00
grant-table.c	xen: don't use page->lru for ZONE_DEVICE memory	2020-12-09 10:31:41 +01:00
Kconfig	xen: branch for v5.9-rc4	2020-09-06 09:59:27 -07:00
Makefile	xen: branch for v5.9-rc4	2020-09-06 09:59:27 -07:00
manage.c
mcelog.c
mem-reservation.c
pci.c
pcpu.c
platform-pci.c	xen-platform: Constify dev_pm_ops	2020-05-21 13:00:39 -05:00
privcmd-buf.c
privcmd.c	xen/privcmd: allow fetching resource sizes	2021-01-19 18:27:21 +01:00
privcmd.h
pvcalls-back.c	xen/pvcallsback: use lateeoi irq binding	2020-10-20 10:22:07 +02:00
pvcalls-front.c	xen: remove redundant initialization of variable ret	2020-10-04 18:41:33 -05:00
pvcalls-front.h
swiotlb-xen.c	swiotlb: remove the tbl_dma_addr argument to swiotlb_tbl_map_single	2020-11-02 10:10:39 -05:00
sys-hypervisor.c
time.c	READ_ONCE: Enforce atomicity for {READ,WRITE}_ONCE() memory accesses	2020-04-16 12:28:07 +01:00
unpopulated-alloc.c	xen: don't use page->lru for ZONE_DEVICE memory	2020-12-09 10:31:41 +01:00
xen-acpi-cpuhotplug.c
xen-acpi-memhotplug.c	treewide: Use fallthrough pseudo-keyword	2020-08-23 17:36:59 -05:00
xen-acpi-pad.c
xen-acpi-processor.c
xen-balloon.c	xen/balloon: Support xend-based toolstack take two	2020-01-22 08:58:16 -06:00
xen-front-pgdir-shbuf.c
xen-scsiback.c	xen: add helpers for caching grant mapping pages	2020-12-09 10:31:37 +01:00
xen-stub.c
xlate_mmu.c	xen: add helpers to allocate unpopulated memory	2020-09-04 10:00:01 +02:00