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author | Marc Zyngier <marc.zyngier@arm.com> | 2017-03-27 17:03:44 +0100 |
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committer | Christoffer Dall <cdall@linaro.org> | 2017-04-09 07:49:16 -0700 |
commit | b1d4cb69838f71d62dc0ecf21566a1425835f015 (patch) | |
tree | ecd320b1adbd92c1a3c4e12f9bfd07a5c6295ff6 /arch/blackfin | |
parent | arm64: KVM: Do not corrupt registers on failed 64bit CP read (diff) | |
download | linux-dev-b1d4cb69838f71d62dc0ecf21566a1425835f015.tar.xz linux-dev-b1d4cb69838f71d62dc0ecf21566a1425835f015.zip |
arm: KVM: Make unexpected register accesses inject an undef
Reads from write-only system registers are generally confined to
EL1 and not propagated to EL2 (that's what the architecture
mantates). In order to be sure that we have a sane behaviour
even in the unlikely event that we have a broken system, we still
handle it in KVM. Same goes for write to RO registers.
In that case, let's inject an undef into the guest.
Reviewed-by: Christoffer Dall <cdall@linaro.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Diffstat (limited to 'arch/blackfin')
0 files changed, 0 insertions, 0 deletions