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(parent: 8fd10a6) | patch
xen/arm: Add performance counters in guest atomic helpers
authorJulien Grall <julien.grall@arm.com>
Mon, 29 Apr 2019 14:05:29 +0000 (15:05 +0100)
committerJulien Grall <julien.grall@arm.com>
Fri, 14 Jun 2019 13:38:40 +0000 (14:38 +0100)
commitaf90ec8fb27344166e3ed161f79de6a59ae37505
tree8dea89303e752c34539b3a087351ecb344969a43tree | snapshot
parent8fd10a6176df36fc97bced816dcfb7304d0a37b9commit | diff
xen/arm: Add performance counters in guest atomic helpers

Add performance counters in guest atomic helpers to be able to detect
whether a guest is often paused during the operations.

This is part of XSA-295.

Signed-off-by: Julien Grall <julien.grall@arm.com>
Acked-by: Stefano Stabellini <sstabellini@kernel.org>
xen/include/asm-arm/guest_atomics.h diff | blob | history
xen/include/asm-arm/perfc_defn.h diff | blob | history
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