projects / platform / kernel / linux-rpi.git / commit
? search:
summary | shortlog | log | commit | commitdiff | tree
(parent: 28232a4) | patch
KVM: arm/arm64: vgic-v3: Fix nr_pre_bits bitfield extraction
authorChristoffer Dall <cdall@linaro.org>
Sun, 4 Jun 2017 20:17:02 +0000 (22:17 +0200)
committerChristoffer Dall <cdall@linaro.org>
Tue, 6 Jun 2017 08:16:53 +0000 (10:16 +0200)
commitd68356cc51e304ff9a389f006b6249d41f2c2319
tree1b73905d348d12a65c425d38b5c2f0e3a3b17f19tree | snapshot
parent28232a4317be7ad615f0f1b69dc8583fd580a8e3commit | diff
KVM: arm/arm64: vgic-v3: Fix nr_pre_bits bitfield extraction

We used to extract PRIbits from the ICH_VT_EL2 which was the upper field
in the register word, so a mask wasn't necessary, but as we switched to
looking at PREbits, which is bits 26 through 28 with the PRIbits field
being potentially non-zero, we really need to mask off the field value,
otherwise fun things may happen.

Signed-off-by: Christoffer Dall <cdall@linaro.org>
Acked-by: Marc Zyngier <marc.zyngier@arm.com>
virt/kvm/arm/hyp/vgic-v3-sr.c diff | blob | history
Domain: System / Kernel;