Correctly instantiate PLIC contexts for mixed-hart targets

This commit started as an attempt to make the PLIC tolerant of
discontiguous hart IDs, but it turns out it was already most of
the way there: PLIC contexts can still be dense even if the hart
IDs are not.

Nevertheless, I wanted to avoid passing the procs vector directly to
the plic_t constructor.  In removing it, I realized I could also get
rid of the smode parameter by querying whether each hart has S-mode.
This is also more correct; previously, we were instantiating the PLIC
as though all harts had S-mode, regardless of whether they actually did.

1 files changed, 2 insertions, 1 deletions

diff --git a/riscv/devices.h b/riscv/devices.h
index 53db96a..6facaa3 100644
--- a/riscv/devices.h
+++ b/riscv/devices.h
@@ -12,6 +12,7 @@
 #include <utility>
 
 class processor_t;
+class sim_t;
 
 class bus_t : public abstract_device_t {
  public:
@@ -91,7 +92,7 @@ struct plic_context_t {
 
 class plic_t : public abstract_device_t, public abstract_interrupt_controller_t {
  public:
-  plic_t(std::vector<processor_t*>&, bool smode, uint32_t ndev);
+  plic_t(sim_t*, uint32_t ndev);
   bool load(reg_t addr, size_t len, uint8_t* bytes);
   bool store(reg_t addr, size_t len, const uint8_t* bytes);
   void set_interrupt_level(uint32_t id, int lvl);