diff options
| author | Luc Michel <luc.michel@greensocs.com> | 2018-08-14 17:17:20 +0100 |
|---|---|---|
| committer | Peter Maydell <peter.maydell@linaro.org> | 2018-08-14 17:17:20 +0100 |
| commit | 4a37e0e47618533b3792a6a999d156703203b7a8 (patch) | |
| tree | 64e2a67b5a5afa9ec422c161f7db8032c97bac3a /hw/intc/arm_gic.c | |
| parent | 7c2fffd282ec48ab852dd56b507abe76c64feea2 (diff) | |
intc/arm_gic: Add virtualization extensions helper macros and functions
Add some helper macros and functions related to the virtualization
extensions to gic_internal.h.
The GICH_LR_* macros help extracting specific fields of a list register
value. The only tricky one is the priority field as only the MSB are
stored. The value must be shifted accordingly to obtain the correct
priority value.
gic_is_vcpu() and gic_get_vcpu_real_id() help with (v)CPU id manipulation
to abstract the fact that vCPU id are in the range
[ GIC_NCPU; (GIC_NCPU + num_cpu) [.
gic_lr_* and gic_virq_is_valid() help with the list registers.
gic_get_lr_entry() returns the LR entry for a given (vCPU, irq) pair. It
is meant to be used in contexts where we know for sure that the entry
exists, so we assert that entry is actually found, and the caller can
avoid the NULL check on the returned pointer.
Signed-off-by: Luc Michel <luc.michel@greensocs.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 20180727095421.386-8-luc.michel@greensocs.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Diffstat (limited to 'hw/intc/arm_gic.c')
| -rw-r--r-- | hw/intc/arm_gic.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/hw/intc/arm_gic.c b/hw/intc/arm_gic.c index 5231579985..41141fee53 100644 --- a/hw/intc/arm_gic.c +++ b/hw/intc/arm_gic.c @@ -61,6 +61,11 @@ static inline int gic_get_current_cpu(GICState *s) return 0; } +static inline int gic_get_current_vcpu(GICState *s) +{ + return gic_get_current_cpu(s) + GIC_NCPU; +} + /* Return true if this GIC config has interrupt groups, which is * true if we're a GICv2, or a GICv1 with the security extensions. */ |