From f5b42c3324494ea3f9bf795e2a7e4d3cbb06c607 Mon Sep 17 00:00:00 2001 From: Avi Kivity Date: Tue, 6 Mar 2007 12:05:53 +0200 Subject: [PATCH] KVM: Fix guest sysenter on vmx The vmx code currently treats the guest's sysenter support msrs as 32-bit values, which breaks 32-bit compat mode userspace on 64-bit guests. Fix by using the native word width of the machine. Signed-off-by: Avi Kivity --- drivers/kvm/vmx.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/kvm/vmx.c b/drivers/kvm/vmx.c index c07178e6112..bfa0ce42ea9 100644 --- a/drivers/kvm/vmx.c +++ b/drivers/kvm/vmx.c @@ -371,10 +371,10 @@ static int vmx_get_msr(struct kvm_vcpu *vcpu, u32 msr_index, u64 *pdata) data = vmcs_read32(GUEST_SYSENTER_CS); break; case MSR_IA32_SYSENTER_EIP: - data = vmcs_read32(GUEST_SYSENTER_EIP); + data = vmcs_readl(GUEST_SYSENTER_EIP); break; case MSR_IA32_SYSENTER_ESP: - data = vmcs_read32(GUEST_SYSENTER_ESP); + data = vmcs_readl(GUEST_SYSENTER_ESP); break; default: msr = find_msr_entry(vcpu, msr_index); @@ -412,10 +412,10 @@ static int vmx_set_msr(struct kvm_vcpu *vcpu, u32 msr_index, u64 data) vmcs_write32(GUEST_SYSENTER_CS, data); break; case MSR_IA32_SYSENTER_EIP: - vmcs_write32(GUEST_SYSENTER_EIP, data); + vmcs_writel(GUEST_SYSENTER_EIP, data); break; case MSR_IA32_SYSENTER_ESP: - vmcs_write32(GUEST_SYSENTER_ESP, data); + vmcs_writel(GUEST_SYSENTER_ESP, data); break; case MSR_IA32_TIME_STAMP_COUNTER: guest_write_tsc(data); -- 2.41.1