diff --git a/src/apm.c b/src/apm.c
index fd71a01e..f7c2306c 100644
--- a/src/apm.c
+++ b/src/apm.c
@@ -9,30 +9,11 @@
 #include "biosvar.h" // GET_GLOBAL
 #include "bregs.h" // struct bregs
 #include "config.h" // CONFIG_*
-#include "fw/paravirt.h" // runningOnQEMU
 #include "output.h" // dprintf
 #include "stacks.h" // yield_toirq
 #include "util.h" // apm_shutdown
 #include "x86.h" // outb
 
-static void
-out_str(const char *str_cs)
-{
-    if (!runningOnQEMU()) {
-        dprintf(1, "APM request '%s'\n", str_cs);
-        return;
-    }
-
-    u8 *s = (u8*)str_cs;
-    for (;;) {
-        u8 c = GET_GLOBAL(*s);
-        if (!c)
-            break;
-        outb(c, PORT_BIOS_APM);
-        s++;
-    }
-}
-
 // APM installation check
 static void
 handle_155300(struct bregs *regs)
@@ -54,14 +35,11 @@ handle_155301(struct bregs *regs)
     set_success(regs);
 }
 
-// Assembler entry points defined in romlayout.S
-extern void entry_apm16(void);
-extern void entry_apm32(void);
-
 // APM 16 bit protected mode interface connect
 static void
 handle_155302(struct bregs *regs)
 {
+    extern void entry_apm16(void);
     regs->bx = (u32)entry_apm16;
     regs->ax = SEG_BIOS; // 16 bit code segment base
     regs->si = 0xfff0;   // 16 bit code segment size
@@ -74,6 +52,7 @@ handle_155302(struct bregs *regs)
 static void
 handle_155303(struct bregs *regs)
 {
+    extern void entry_apm32(void);
     regs->ax = SEG_BIOS; // 32 bit code segment base
     regs->ebx = (u32)entry_apm32;
     regs->cx = SEG_BIOS; // 16 bit code segment base
@@ -111,11 +90,10 @@ void
 apm_shutdown(void)
 {
     u16 pm1a_cnt = GET_GLOBAL(acpi_pm1a_cnt);
-
-    irq_disable();
     if (pm1a_cnt)
         outw(0x2000, pm1a_cnt);
-    out_str("Shutdown");
+
+    irq_disable();
     for (;;)
         hlt();
 }
@@ -130,10 +108,10 @@ handle_155307(struct bregs *regs)
     }
     switch (regs->cx) {
     case 1:
-        out_str("Standby");
+        dprintf(1, "APM standby request\n");
         break;
     case 2:
-        out_str("Suspend");
+        dprintf(1, "APM suspend request\n");
         break;
     case 3:
         apm_shutdown();
diff --git a/src/fw/paravirt.h b/src/fw/paravirt.h
index 69d72486..04fb4b96 100644
--- a/src/fw/paravirt.h
+++ b/src/fw/paravirt.h
@@ -31,7 +31,6 @@ static inline int runningOnKVM(void) {
 #define PORT_QEMU_CFG_DATA     0x0511
 #define PORT_ACPI_PM_BASE      0xb000
 #define PORT_SMB_BASE          0xb100
-#define PORT_BIOS_APM          0x8900
 
 void qemu_preinit(void);
 void qemu_platform_setup(void);