On 2/21/26 2:18 AM, Tao Tang wrote:
Add access control for SMMU_STRTAB_BASE and SMMU_CR2 registers to ensure they can only be modified when the SMMU is disabled.This implements: - smmuv3_smmu_disabled_stable(): Check whether the SMMU is in a stable disabled state (CR0.SMMUEN == 0 and CR0ACK.SMMUEN == 0); - smmu_strtab_base_writable(): returns true only when IDR1.TABLES_PRESET==0 and SMMU is completely disabled. Additionally, mask reserved bits on writes to SMMU_STRTAB_BASE using SMMU_STRTAB_BASE_RESERVED. Fixes: fae4be38b35d ("hw/arm/smmuv3: Implement MMIO write operations") Signed-off-by: Tao Tang <[email protected]> --- hw/arm/smmuv3.c | 69 +++++++++++++++++++++++++++++++++++++++++++++++-- 1 file changed, 67 insertions(+), 2 deletions(-)
Reviewed-by: Pierrick Bouvier <[email protected]>
