From 09fda8f5dc925ba059aca539163d16796af6a299 Mon Sep 17 00:00:00 2001 From: Paolo Bonzini Date: Tue, 25 Feb 2025 10:06:20 +0100 Subject: rust: hpet: do not access fields of SysBusDevice Fields of SysBusDevice must only be accessed with the BQL taken. Add a wrapper that verifies that. Signed-off-by: Paolo Bonzini --- rust/qemu-api/src/sysbus.rs | 12 ++++++++++++ 1 file changed, 12 insertions(+) (limited to 'rust/qemu-api/src') diff --git a/rust/qemu-api/src/sysbus.rs b/rust/qemu-api/src/sysbus.rs index 48803a6..0790576 100644 --- a/rust/qemu-api/src/sysbus.rs +++ b/rust/qemu-api/src/sysbus.rs @@ -65,6 +65,18 @@ where } // TODO: do we want a type like GuestAddress here? + fn mmio_addr(&self, id: u32) -> Option { + assert!(bql_locked()); + let sbd = self.upcast(); + let id: usize = id.try_into().unwrap(); + if sbd.mmio[id].memory.is_null() { + None + } else { + Some(sbd.mmio[id].addr) + } + } + + // TODO: do we want a type like GuestAddress here? fn mmio_map(&self, id: u32, addr: u64) { assert!(bql_locked()); let id: i32 = id.try_into().unwrap(); -- cgit v1.1