linux/arch
Oliver Upton 40e54cad45 KVM: arm64: Document default vPMU behavior on heterogeneous systems
KVM maintains a mask of supported CPUs when a vPMU type is explicitly
selected by userspace and is used to reject any attempt to run the vCPU
on an unsupported CPU. This is great, but we're still beholden to the
default behavior where vCPUs can be scheduled anywhere and guest
counters may silently stop working.

Avoid confusing the next poor sod to look at this code and document the
intended behavior.

Signed-off-by: Oliver Upton <oliver.upton@linux.dev>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20230525212723.3361524-3-oliver.upton@linux.dev
2023-05-31 10:29:56 +01:00
..
alpha Locking changes in v6.4: 2023-05-05 12:56:55 -07:00
arc Locking changes in v6.4: 2023-05-05 12:56:55 -07:00
arm Locking changes in v6.4: 2023-05-05 12:56:55 -07:00
arm64 KVM: arm64: Document default vPMU behavior on heterogeneous systems 2023-05-31 10:29:56 +01:00
csky arch/csky patches for 6.4 2023-05-04 12:25:05 -07:00
hexagon Locking changes in v6.4: 2023-05-05 12:56:55 -07:00
ia64 Locking changes in v6.4: 2023-05-05 12:56:55 -07:00
loongarch Locking changes in v6.4: 2023-05-05 12:56:55 -07:00
m68k Locking changes in v6.4: 2023-05-05 12:56:55 -07:00
microblaze Kconfig: introduce HAS_IOPORT option and select it as necessary 2023-04-05 22:15:19 +02:00
mips Locking changes in v6.4: 2023-05-05 12:56:55 -07:00
nios2 - Nick Piggin's "shoot lazy tlbs" series, to improve the peformance of 2023-04-27 19:42:02 -07:00
openrisc Locking changes in v6.4: 2023-05-05 12:56:55 -07:00
parisc Locking changes in v6.4: 2023-05-05 12:56:55 -07:00
powerpc Locking changes in v6.4: 2023-05-05 12:56:55 -07:00
riscv Locking changes in v6.4: 2023-05-05 12:56:55 -07:00
s390 s390: remove the unneeded select GCC12_NO_ARRAY_BOUNDS 2023-05-05 18:56:23 -07:00
sh Locking changes in v6.4: 2023-05-05 12:56:55 -07:00
sparc Locking changes in v6.4: 2023-05-05 12:56:55 -07:00
um This pull request contains the following changes for UML: 2023-05-03 19:02:03 -07:00
x86 Locking changes in v6.4: 2023-05-05 12:56:55 -07:00
xtensa Locking changes in v6.4: 2023-05-05 12:56:55 -07:00
.gitignore
Kconfig lazy tlb: shoot lazies, non-refcounting lazy tlb mm reference handling scheme 2023-03-28 16:20:08 -07:00