AuxXxilium/linux_dsm_epyc7002
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linux_dsm_epyc7002/include
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Catalin Marinas ffb9a77d0a arm64: mte: Map hotplugged memory as Normal Tagged 
commit d15dfd31384ba3cb93150e5f87661a76fa419f74 upstream.

In a system supporting MTE, the linear map must allow reading/writing
allocation tags by setting the memory type as Normal Tagged. Currently,
this is only handled for memory present at boot. Hotplugged memory uses
Normal non-Tagged memory.

Introduce pgprot_mhp() for hotplugged memory and use it in
add_memory_resource(). The arm64 code maps pgprot_mhp() to
pgprot_tagged().

Note that ZONE_DEVICE memory should not be mapped as Tagged and
therefore setting the memory type in arch_add_memory() is not feasible.

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Fixes: 0178dc7613 ("arm64: mte: Use Normal Tagged attributes for the linear map")
Reported-by: Patrick Daly <pdaly@codeaurora.org>
Tested-by: Patrick Daly <pdaly@codeaurora.org>
Link: https://lore.kernel.org/r/1614745263-27827-1-git-send-email-pdaly@codeaurora.org
Cc: <stable@vger.kernel.org> # 5.10.x
Cc: Will Deacon <will@kernel.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Vincenzo Frascino <vincenzo.frascino@arm.com>
Cc: David Hildenbrand <david@redhat.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Vincenzo Frascino <vincenzo.frascino@arm.com>
Reviewed-by: Anshuman Khandual <anshuman.khandual@arm.com>
Link: https://lore.kernel.org/r/20210309122601.5543-1-catalin.marinas@arm.com
Signed-off-by: Will Deacon <will@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-03-17 17:06:28 +01:00
..
acpi ACPICA: Fix exception code class checks 2021-03-04 11:37:24 +01:00
asm-generic vmlinux.lds.h: Define SANTIZER_DISCARDS with CONFIG_GCOV_KERNEL=y 2021-03-04 11:37:19 +01:00
clocksource
crypto crypto - shash: reduce minimum alignment of shash_desc structure 2021-03-09 11:11:13 +01:00
drm drm/dp/mst: Export drm_dp_get_vc_payload_bw() 2021-02-10 09:29:18 +01:00
dt-bindings ASoC: dt-bindings: lpass: Fix and common up lpass dai ids 2021-02-03 23:28:46 +01:00
keys
kunit kunit: fix display of failed expectations for strings 2020-11-10 13:45:15 -07:00
kvm
linux arm64: mte: Map hotplugged memory as Normal Tagged 2021-03-17 17:06:28 +01:00
math-emu
media media: rc: compile rc-cec.c into rc-core 2021-03-17 17:06:20 +01:00
memory
misc
net Bluetooth: Add new HCI_QUIRK_NO_SUSPEND_NOTIFIER quirk 2021-03-07 12:34:10 +01:00
pcmcia
ras
rdma RDMA: Lift ibdev_to_node from rds to common code 2021-02-26 10:12:59 +01:00
scsi scsi: libiscsi: Fix NOP race condition 2020-11-16 22:32:50 -05:00
soc net: dsa: felix: implement port flushing on .phylink_mac_link_down 2021-02-17 11:02:27 +01:00
sound ALSA: hda: intel-nhlt: verify config type 2021-03-09 11:11:14 +01:00
target scsi: target: core: Add cmd length set before cmd complete 2021-03-17 17:06:25 +01:00
trace trace: fix potenial dangerous pointer 2020-11-25 13:03:44 +01:00
uapi net: l2tp: reduce log level of messages in receive path, add counter instead 2021-03-17 17:06:11 +01:00
vdso
video gpu: ipu-v3: remove unused functions 2020-10-26 10:42:38 +01:00
xen Xen/gntdev: correct error checking in gntdev_map_grant_pages() 2021-02-23 15:53:24 +01:00