KVM: arm64: Fix MMFR0 TGRAN advertisement for pVMs

Protected VM ID register emulation leaves unlisted fields at 0. This
creates two issues for TGRAN:

  * TGRAN16: 0 means non-implemented. It prevents 16KB protected VMs
    from booting even when the hardware supports it.

  * TGRAN4|TGRAN64: 0 means implemented. This may falsely advertise the
    feature even when the hardware does not support it.

Advertise all the TGRAN fields in pvmid_aa64mmfr0 so that the hardware
support is properly propagated.

Cc: stable@vger.kernel.org
Fixes: 6c30bfb18d0b ("KVM: arm64: Add handlers for protected VM System Registers")
Signed-off-by: Vincent Donnefort <vdonnefort@google.com>
Tested-by: Fuad Tabba <fuad.tabba@linux.dev>
Reviewed-by: Fuad Tabba <fuad.tabba@linux.dev>
Tested-by: Fuad Tabba <tabba@google.com>
Reviewed-by: Fuad Tabba <tabba@google.com>
Link: https://patch.msgid.link/20260928095454.3255918-2-vdonnefort@google.com
Signed-off-by: Marc Zyngier <maz@kernel.org>

0 files changed, 0 insertions, 0 deletions