[1/2] test: Mask PIC interrupts before APIC test

Commit Message

Avi Kivity Sept. 14, 2009, 11:50 a.m. UTC

We aren't ready to handle PIC interrupts, so mask them.

Signed-off-by: Avi Kivity <[e-mail]>
---
 kvm/user/test/x86/apic.c |   13 +++++++++++++
 1 files changed, 13 insertions(+), 0 deletions(-)

Patch

diff --git a/kvm/user/test/x86/apic.c b/kvm/user/test/x86/apic.c
index 7794615..b712ef8 100644
--- a/kvm/user/test/x86/apic.c
+++ b/kvm/user/test/x86/apic.c
@@ -102,6 +102,11 @@  static idt_entry_t idt[256];
 static int g_fail;
 static int g_tests;
 
+static void outb(unsigned char data, unsigned short port)
+{
+    asm volatile ("out %0, %1" : : "a"(data), "d"(port));
+}
+
 static void report(const char *msg, int pass)
 {
     ++g_tests;
@@ -325,9 +330,16 @@  static void test_ioapic_simultaneous(void)
 
 static void enable_apic(void)
 {
+    printf("enabling apic\n");
     apic_write(0xf0, 0x1ff); /* spurious vector register */
 }
 
+static void mask_pic_interrupts(void)
+{
+    outb(0xff, 0x21);
+    outb(0xff, 0xa1);
+}
+
 int main()
 {
     setup_vm();
@@ -337,6 +349,7 @@  int main()
 
     test_lapic_existence();
 
+    mask_pic_interrupts();
     enable_apic();
     init_idt();