accel/mshv: remove redundant msi controller

The remaining MsiControl infrastructure can be removed now

Signed-off-by: Magnus Kulke <magnuskulke@linux.microsoft.com>
Link: https://lore.kernel.org/r/20260417105618.3621-14-magnuskulke@linux.microsoft.com
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

accel/mshv/irq.c

@@ -25,17 +25,6 @@
 #define MSHV_IRQFD_RESAMPLE_FLAG (1 << MSHV_IRQFD_BIT_RESAMPLE)
 #define MSHV_IRQFD_BIT_DEASSIGN_FLAG (1 << MSHV_IRQFD_BIT_DEASSIGN)
 
-static MshvMsiControl *msi_control;
-static QemuMutex msi_control_mutex;
-
-void mshv_init_msicontrol(void)
-{
-    qemu_mutex_init(&msi_control_mutex);
-    msi_control = g_new0(MshvMsiControl, 1);
-    msi_control->gsi_routes = g_hash_table_new(g_direct_hash, g_direct_equal);
-    msi_control->updated = false;
-}
-
 /* Pass an eventfd which is to be used for injecting interrupts from userland */
 static int irqfd(int vm_fd, int fd, int resample_fd, uint32_t gsi,
                  uint32_t flags)

accel/mshv/mshv-all.c

@@ -505,8 +505,6 @@ static int mshv_init(AccelState *as, MachineState *ms)
 
     mshv_init_mmio_emu();
 
-    mshv_init_msicontrol();
-
     ret = create_vm(mshv_fd, &vm_fd);
     if (ret < 0) {
         close(mshv_fd);

include/system/mshv_int.h

@@ -120,7 +120,4 @@ typedef struct MshvMsrEntries {
 int mshv_configure_msr(const CPUState *cpu, const MshvMsrEntry *msrs,
                        size_t n_msrs);
 
-/* interrupt */
-void mshv_init_msicontrol(void);
-
 #endif