Quentin Perret 2c06d861a9 ANDROID: KVM: arm64: Don't update IOMMUs unnecessarily ...

When handling host stage-2 faults the hypervisor currently updates the
CPU _and_ IOMMUs page-tables. However, since we currently proactively
map accessible PA ranges into IOMMUs, updating them during stage-2
faults is unnecessary -- it only needs to be done during ownership
transitions. Optimize this by skipping the IOMMU updates from the host
memory abort path, which also reduces contention on the host stage-2
lock during boot and saves up to 1.1 sec of boot time on Pixel 6.

Bug: 232879742
Change-Id: Icb6f1b2d10de8cc2f976bbc94b9b79ad7aaa6135
Signed-off-by: Quentin Perret <qperret@google.com>
(cherry picked from commit 20c6e1ba55)
Signed-off-by: Mostafa Saleh <smostafa@google.com>

2022-11-24 12:41:32 +00:00

..

alpha

tty: the rest, stop using tty_schedule_flip()

2022-07-29 17:25:32 +02:00

arc

arc: iounmap() arg is volatile

2022-11-03 23:59:15 +09:00

arm

Merge 5.15.78 into android14-5.15

2022-11-15 16:38:36 +00:00

arm64

ANDROID: KVM: arm64: Don't update IOMMUs unnecessarily

2022-11-24 12:41:32 +00:00

csky

Merge 5.15.63 into android14-5.15

2022-09-24 10:01:09 +02:00

h8300

UPSTREAM: kbuild: rename cmd_{bzip2,lzma,lzo,lz4,xzkern,zstd22}

2022-09-17 11:54:24 +00:00

hexagon

uaccess: fix integer overflow on access_ok()

2022-03-28 09:58:45 +02:00

ia64

ia64: export memory_add_physaddr_to_nid to fix cxl build error

2022-10-26 12:34:59 +02:00

m68k

m68k: coldfire/device.c: protect FLEXCAN blocks

2022-08-25 11:40:05 +02:00

microblaze

uaccess: fix nios2 and microblaze get_user_8()

2022-04-08 14:23:18 +02:00

mips

Merge 5.15.79 into android14-5.15

2022-11-16 10:04:35 +00:00

nds32

UPSTREAM: perf: Drop dead and useless guest "support" from arm, csky, nds32 and riscv

2022-08-10 07:29:13 +00:00

nios2

nios2: add force_successful_syscall_return()

2022-08-25 11:40:19 +02:00

openrisc

openrisc: io: Define iounmap argument as volatile

2022-08-25 11:40:38 +02:00

parisc

Merge 5.15.78 into android14-5.15

2022-11-15 16:38:36 +00:00

powerpc

ANDROID: mm: introduce vma refcounting to protect vma during SPF

2022-11-23 10:25:27 -08:00

riscv

Merge 5.15.79 into android14-5.15

2022-11-16 10:04:35 +00:00

s390

Merge 5.15.79 into android14-5.15

2022-11-16 10:04:35 +00:00

sh

Merge 5.15.75 into android14-5.15

2022-11-02 08:51:19 +01:00

sparc

signal: Deliver SIGTRAP on perf event asynchronously if blocked

2022-06-09 10:22:48 +02:00

um

UM: cpuinfo: Fix a warning for CONFIG_CPUMASK_OFFSTACK

2022-10-26 12:34:23 +02:00

x86

ANDROID: mm: introduce vma refcounting to protect vma during SPF

2022-11-23 10:25:27 -08:00

xtensa

xtensa: iss: fix handling error cases in iss_net_configure()

2022-08-17 14:23:52 +02:00

.gitignore

…

Kconfig

ANDROID: Define mem_relinquish interface for releasing memory to a hypervisor.

2022-11-11 16:07:56 +00:00