diff options
| author | Peter Maydell <peter.maydell@linaro.org> | 2022-05-12 16:14:56 +0100 |
|---|---|---|
| committer | Peter Maydell <peter.maydell@linaro.org> | 2022-05-19 16:19:02 +0100 |
| commit | 39f29e599355f9512482b67624e7a6c9000c5ddd (patch) | |
| tree | dd77f822d119d5803f253339394048c47f0a4d46 /hw/intc/arm_gicv3_common.c | |
| parent | 84597ff39484ec171567c7c80061100eb4a6c331 (diff) | |
hw/intc/arm_gicv3: Use correct number of priority bits for the CPU
Make the GICv3 set its number of bits of physical priority from the
implementation-specific value provided in the CPU state struct, in
the same way we already do for virtual priority bits. Because this
would be a migration compatibility break, we provide a property
force-8-bit-prio which is enabled for 7.0 and earlier versioned board
models to retain the legacy "always use 8 bits" behaviour.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20220512151457.3899052-6-peter.maydell@linaro.org
Message-id: 20220506162129.2896966-5-peter.maydell@linaro.org
Diffstat (limited to 'hw/intc/arm_gicv3_common.c')
| -rw-r--r-- | hw/intc/arm_gicv3_common.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/hw/intc/arm_gicv3_common.c b/hw/intc/arm_gicv3_common.c index 5634c6fc78..351843db4a 100644 --- a/hw/intc/arm_gicv3_common.c +++ b/hw/intc/arm_gicv3_common.c @@ -563,6 +563,11 @@ static Property arm_gicv3_common_properties[] = { DEFINE_PROP_UINT32("revision", GICv3State, revision, 3), DEFINE_PROP_BOOL("has-lpi", GICv3State, lpi_enable, 0), DEFINE_PROP_BOOL("has-security-extensions", GICv3State, security_extn, 0), + /* + * Compatibility property: force 8 bits of physical priority, even + * if the CPU being emulated should have fewer. + */ + DEFINE_PROP_BOOL("force-8-bit-prio", GICv3State, force_8bit_prio, 0), DEFINE_PROP_ARRAY("redist-region-count", GICv3State, nb_redist_regions, redist_region_count, qdev_prop_uint32, uint32_t), DEFINE_PROP_LINK("sysmem", GICv3State, dma, TYPE_MEMORY_REGION, |