diff options
| -rw-r--r-- | rust/hw/char/pl011/src/device.rs | 38 | ||||
| -rw-r--r-- | rust/hw/char/pl011/src/device_class.rs | 10 | ||||
| -rw-r--r-- | rust/qemu-api/src/vmstate.rs | 22 |
3 files changed, 37 insertions, 33 deletions
diff --git a/rust/hw/char/pl011/src/device.rs b/rust/hw/char/pl011/src/device.rs index 090e5d6450..4d620b442e 100644 --- a/rust/hw/char/pl011/src/device.rs +++ b/rust/hw/char/pl011/src/device.rs @@ -31,7 +31,7 @@ const IBRD_MASK: u32 = 0xffff; const FBRD_MASK: u32 = 0x3f; /// QEMU sourced constant. -pub const PL011_FIFO_DEPTH: usize = 16_usize; +pub const PL011_FIFO_DEPTH: u32 = 16; #[derive(Clone, Copy, Debug)] enum DeviceId { @@ -56,6 +56,32 @@ impl DeviceId { const PL011_ID_LUMINARY: [c_uchar; 8] = [0x11, 0x00, 0x18, 0x01, 0x0d, 0xf0, 0x05, 0xb1]; } +// FIFOs use 32-bit indices instead of usize, for compatibility with +// the migration stream produced by the C version of this device. +#[repr(transparent)] +#[derive(Debug, Default)] +pub struct Fifo([registers::Data; PL011_FIFO_DEPTH as usize]); + +impl Fifo { + const fn len(&self) -> u32 { + self.0.len() as u32 + } +} + +impl std::ops::IndexMut<u32> for Fifo { + fn index_mut(&mut self, idx: u32) -> &mut Self::Output { + &mut self.0[idx as usize] + } +} + +impl std::ops::Index<u32> for Fifo { + type Output = registers::Data; + + fn index(&self, idx: u32) -> &Self::Output { + &self.0[idx as usize] + } +} + #[repr(C)] #[derive(Debug, qemu_api_macros::Object, qemu_api_macros::offsets)] /// PL011 Device Model in QEMU @@ -73,14 +99,14 @@ pub struct PL011State { pub dmacr: u32, pub int_enabled: u32, pub int_level: u32, - pub read_fifo: [registers::Data; PL011_FIFO_DEPTH], + pub read_fifo: Fifo, pub ilpr: u32, pub ibrd: u32, pub fbrd: u32, pub ifl: u32, - pub read_pos: usize, - pub read_count: usize, - pub read_trigger: usize, + pub read_pos: u32, + pub read_count: u32, + pub read_trigger: u32, #[doc(alias = "chr")] pub char_backend: CharBackend, /// QEMU interrupts @@ -480,7 +506,7 @@ impl PL011State { } #[inline] - pub fn fifo_depth(&self) -> usize { + pub fn fifo_depth(&self) -> u32 { // Note: FIFO depth is expected to be power-of-2 if self.fifo_enabled() { return PL011_FIFO_DEPTH; diff --git a/rust/hw/char/pl011/src/device_class.rs b/rust/hw/char/pl011/src/device_class.rs index 975c3d42be..7f3ca89507 100644 --- a/rust/hw/char/pl011/src/device_class.rs +++ b/rust/hw/char/pl011/src/device_class.rs @@ -6,8 +6,8 @@ use core::ptr::NonNull; use std::os::raw::{c_int, c_void}; use qemu_api::{ - bindings::*, c_str, vmstate_clock, vmstate_fields, vmstate_int32, vmstate_subsections, - vmstate_uint32, vmstate_uint32_array, vmstate_unused, zeroable::Zeroable, + bindings::*, c_str, vmstate_clock, vmstate_fields, vmstate_subsections, vmstate_uint32, + vmstate_uint32_array, vmstate_unused, zeroable::Zeroable, }; use crate::device::{PL011State, PL011_FIFO_DEPTH}; @@ -64,9 +64,9 @@ pub static VMSTATE_PL011: VMStateDescription = VMStateDescription { vmstate_uint32!(ibrd, PL011State), vmstate_uint32!(fbrd, PL011State), vmstate_uint32!(ifl, PL011State), - vmstate_int32!(read_pos, PL011State), - vmstate_int32!(read_count, PL011State), - vmstate_int32!(read_trigger, PL011State), + vmstate_uint32!(read_pos, PL011State), + vmstate_uint32!(read_count, PL011State), + vmstate_uint32!(read_trigger, PL011State), }, subsections: vmstate_subsections! { VMSTATE_PL011_CLOCK diff --git a/rust/qemu-api/src/vmstate.rs b/rust/qemu-api/src/vmstate.rs index 25c68b703e..63c897abcd 100644 --- a/rust/qemu-api/src/vmstate.rs +++ b/rust/qemu-api/src/vmstate.rs @@ -106,28 +106,6 @@ macro_rules! vmstate_uint32 { }}; } -#[doc(alias = "VMSTATE_INT32_V")] -#[macro_export] -macro_rules! vmstate_int32_v { - ($field_name:ident, $struct_name:ty, $version_id:expr) => {{ - $crate::vmstate_single!( - $field_name, - $struct_name, - $version_id, - ::core::ptr::addr_of!($crate::bindings::vmstate_info_int32), - ::core::mem::size_of::<i32>() - ) - }}; -} - -#[doc(alias = "VMSTATE_INT32")] -#[macro_export] -macro_rules! vmstate_int32 { - ($field_name:ident, $struct_name:ty) => {{ - $crate::vmstate_int32_v!($field_name, $struct_name, 0) - }}; -} - #[doc(alias = "VMSTATE_ARRAY")] #[macro_export] macro_rules! vmstate_array { |