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[QEMU-KVM,21/34] test: vm: map mmio 1:1

Message ID 1253093169-1423-22-git-send-email-avi@redhat.com (mailing list archive)
State New, archived
Headers show

Commit Message

Avi Kivity Sept. 16, 2009, 9:25 a.m. UTC 
With this assumption, the apic code will be able to run either before or after
the vm is set up.

Signed-off-by: Avi Kivity <avi@redhat.com>
---
 kvm/user/test/x86/vm.c |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)
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Patch

diff --git a/kvm/user/test/x86/vm.c b/kvm/user/test/x86/vm.c
index 03c7354..ec9c145 100644
--- a/kvm/user/test/x86/vm.c
+++ b/kvm/user/test/x86/vm.c
@@ -189,6 +189,9 @@  static void setup_mmu(unsigned long len)
     unsigned long *cr3 = alloc_page();
     unsigned long phys = 0;
 
+    if (len < (1ul << 32))
+        len = 1ul << 32;  /* map mmio 1:1 */
+
     memset(cr3, 0, PAGE_SIZE);
     while (phys + LARGE_PAGE_SIZE <= len) {
 	install_large_page(cr3, phys, (void *)phys);