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authorMarc Zyngier <maz@kernel.org>2023-03-30 18:47:56 +0100
committerMarc Zyngier <maz@kernel.org>2023-03-30 19:01:10 +0100
commit1e0eec09d43a55125ff80e40b2d6e2f369a338b9 (patch)
tree2a359e5a80f73aec8a9fad6d30f7851fc5ade982 /include/kvm
parent1935d34afaebe01ddb75bfaa62fb7fe957ddc210 (diff)
KVM: arm64: nv: timers: Add a per-timer, per-vcpu offset
Being able to set a global offset isn't enough. With NV, we also need to a per-vcpu, per-timer offset (for example, CNTVCT_EL0 being offset by CNTVOFF_EL2). Use a similar method as the VM-wide offset to have a timer point to the shadow register that contains the offset value. Reviewed-by: Colton Lewis <coltonlewis@google.com> Signed-off-by: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/20230330174800.2677007-17-maz@kernel.org
Diffstat (limited to 'include/kvm')
-rw-r--r--include/kvm/arm_arch_timer.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/include/kvm/arm_arch_timer.h b/include/kvm/arm_arch_timer.h
index f093ea9f540d..209da0c2ac9f 100644
--- a/include/kvm/arm_arch_timer.h
+++ b/include/kvm/arm_arch_timer.h
@@ -29,6 +29,11 @@ struct arch_timer_offset {
* structure. If NULL, assume a zero offset.
*/
u64 *vm_offset;
+ /*
+ * If set, pointer to one of the offsets in the vcpu's sysreg
+ * array. If NULL, assume a zero offset.
+ */
+ u64 *vcpu_offset;
};
struct arch_timer_vm_data {