repository: /home/avi/kvm
branch: master
commit 303c7b0bd77feeec0813beb6ed14d051af002764
Author: Izik Eidus <[EMAIL PROTECTED]>
Date: Sat Oct 27 21:12:23 2007 +0200
kvm: libkvm: support the KVM_SET_TSS_ADDR API
this make kvmctl use the KVM_CAP_SET_TSS_ADDR
it allow you to set where the tss memory should be mapped
Signed-off-by: Izik Eidus <[EMAIL PROTECTED]>
Signed-off-by: Avi Kivity <[EMAIL PROTECTED]>
diff --git a/user/kvmctl.c b/user/kvmctl.c
index 839e527..90df2f3 100644
--- a/user/kvmctl.c
+++ b/user/kvmctl.c
@@ -451,6 +451,46 @@ int kvm_create_vm(kvm_context_t kvm)
return 0;
}
+int kvm_set_tss_addr(kvm_context_t kvm, unsigned long addr)
+{
+#ifdef KVM_CAP_SET_TSS_ADDR
+ int r;
+
+ r = ioctl(kvm->fd, KVM_CHECK_EXTENSION, KVM_CAP_SET_TSS_ADDR);
+ if (r > 0) {
+ r = ioctl(kvm->vm_fd, KVM_SET_TSS_ADDR, addr);
+ if (r == -1) {
+ fprintf(stderr, "kvm_set_tss_addr: %m\n");
+ return -errno;
+ }
+ return 0;
+ }
+#endif
+ return -ENOSYS;
+}
+
+static int kvm_init_tss(kvm_context_t kvm)
+{
+#ifdef KVM_CAP_SET_TSS_ADDR
+ int r;
+
+ r = ioctl(kvm->fd, KVM_CHECK_EXTENSION, KVM_CAP_SET_TSS_ADDR);
+ if (r > 0) {
+ /*
+ * this address is 3 pages before the bios, and the bios should
present
+ * as unavaible memory
+ */
+ r = kvm_set_tss_addr(kvm, 0xfffbd000);
+ if (r < 0) {
+ printf("kvm_init_tss: unable to set tss addr\n");
+ return r;
+ }
+
+ }
+#endif
+ return 0;
+}
+
static int kvm_create_default_phys_mem(kvm_context_t kvm,
unsigned long phys_mem_bytes,
void **vm_mem)
@@ -504,6 +544,9 @@ int kvm_create(kvm_context_t kvm, unsigned long
phys_mem_bytes, void **vm_mem)
r = kvm_create_vm(kvm);
if (r < 0)
return r;
+ r = kvm_init_tss(kvm);
+ if (r < 0)
+ return r;
r = kvm_create_default_phys_mem(kvm, phys_mem_bytes, vm_mem);
if (r < 0)
return r;
diff --git a/user/kvmctl.h b/user/kvmctl.h
index fd2600d..26a6eee 100644
--- a/user/kvmctl.h
+++ b/user/kvmctl.h
@@ -412,6 +412,8 @@ int kvm_dump_vcpu(kvm_context_t kvm, int vcpu);
*/
void kvm_show_regs(kvm_context_t kvm, int vcpu);
+int kvm_set_tss_addr(kvm_context_t kvm, unsigned long addr);
+
void *kvm_create_phys_mem(kvm_context_t, unsigned long phys_start,
unsigned long len, int slot, int log, int writable);
void kvm_destroy_phys_mem(kvm_context_t, unsigned long phys_start,
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