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authorRusty Russell <rusty@rustcorp.com.au>2007-07-17 23:37:17 +1000
committerAvi Kivity <avi@qumranet.com>2007-07-19 16:18:08 +0300
commit860852357a6590299a273f1141dbf1871df0b491 (patch)
tree553d258a4f418bed464a86ebc322062d6cd537d1
parent56282e5368afbc8ec6eebb6413bbb2ec0733d0ed (diff)
KVM: Use standard CR8 flags, and fix TPR definitionkvm-31
Intel manual (and KVM definition) say the TPR is 4 bits wide. Also fix CR8_RESEVED_BITS typo. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Acked-by: H. Peter Anvin <hpa@zytor.com> Signed-off-by: Avi Kivity <avi@qumranet.com>
-rw-r--r--drivers/kvm/kvm_main.c4
-rw-r--r--include/asm-i386/processor-flags.h2
2 files changed, 3 insertions, 3 deletions
diff --git a/drivers/kvm/kvm_main.c b/drivers/kvm/kvm_main.c
index ab19049fc822..67654c3680ca 100644
--- a/drivers/kvm/kvm_main.c
+++ b/drivers/kvm/kvm_main.c
@@ -92,7 +92,7 @@ static struct dentry *debugfs_dir;
| X86_CR4_PGE | X86_CR4_PCE | X86_CR4_OSFXSR \
| X86_CR4_OSXMMEXCPT | X86_CR4_VMXE))
-#define CR8_RESEVED_BITS (~0x0fULL)
+#define CR8_RESERVED_BITS (~(unsigned long)X86_CR8_TPR)
#define EFER_RESERVED_BITS 0xfffffffffffff2fe
#ifdef CONFIG_X86_64
@@ -625,7 +625,7 @@ EXPORT_SYMBOL_GPL(set_cr3);
void set_cr8(struct kvm_vcpu *vcpu, unsigned long cr8)
{
- if ( cr8 & CR8_RESEVED_BITS) {
+ if (cr8 & CR8_RESERVED_BITS) {
printk(KERN_DEBUG "set_cr8: #GP, reserved bits 0x%lx\n", cr8);
inject_gp(vcpu);
return;
diff --git a/include/asm-i386/processor-flags.h b/include/asm-i386/processor-flags.h
index 5404e90edd57..199cab107d85 100644
--- a/include/asm-i386/processor-flags.h
+++ b/include/asm-i386/processor-flags.h
@@ -63,7 +63,7 @@
/*
* x86-64 Task Priority Register, CR8
*/
-#define X86_CR8_TPR 0x00000007 /* task priority register */
+#define X86_CR8_TPR 0x0000000F /* task priority register */
/*
* AMD and Transmeta use MSRs for configuration; see <asm/msr-index.h>