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| author | He, Qing <qing.he@intel.com> | 2007-09-03 17:07:41 +0300 |
|---|---|---|
| committer | Avi Kivity <avi@qumranet.com> | 2007-10-13 10:18:26 +0200 |
| commit | c5ec153402b6d276fe20029da1059ba42a4b55e5 (patch) | |
| tree | a323fd0466f606b66fc7239e78569863d62f6300 /drivers/kvm/vmx.c | |
| parent | 932f72adbe76f098922c746737cb0bd75fc21e27 (diff) | |
| download | linux-c5ec153402b6d276fe20029da1059ba42a4b55e5.tar.gz linux-c5ec153402b6d276fe20029da1059ba42a4b55e5.tar.bz2 linux-c5ec153402b6d276fe20029da1059ba42a4b55e5.zip | |
KVM: enable in-kernel APIC INIT/SIPI handling
This patch enables INIT/SIPI handling using in-kernel APIC by
introducing a ->mp_state field to emulate the SMP state transition.
[avi: remove smp_processor_id() warning]
Signed-off-by: Qing He <qing.he@intel.com>
Signed-off-by: Xin Li <xin.b.li@intel.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
Diffstat (limited to 'drivers/kvm/vmx.c')
| -rw-r--r-- | drivers/kvm/vmx.c | 24 |
1 files changed, 21 insertions, 3 deletions
diff --git a/drivers/kvm/vmx.c b/drivers/kvm/vmx.c index f4618b9edf9c..440cacfda89c 100644 --- a/drivers/kvm/vmx.c +++ b/drivers/kvm/vmx.c @@ -1412,6 +1412,8 @@ static int vmx_vcpu_setup(struct vcpu_vmx *vmx) goto out; } + vmx->vcpu.rmode.active = 0; + vmx->vcpu.regs[VCPU_REGS_RDX] = get_rdx_init_val(); set_cr8(&vmx->vcpu, 0); msr = 0xfee00000 | MSR_IA32_APICBASE_ENABLE; @@ -1425,8 +1427,13 @@ static int vmx_vcpu_setup(struct vcpu_vmx *vmx) * GUEST_CS_BASE should really be 0xffff0000, but VT vm86 mode * insists on having GUEST_CS_BASE == GUEST_CS_SELECTOR << 4. Sigh. */ - vmcs_write16(GUEST_CS_SELECTOR, 0xf000); - vmcs_writel(GUEST_CS_BASE, 0x000f0000); + if (vmx->vcpu.vcpu_id == 0) { + vmcs_write16(GUEST_CS_SELECTOR, 0xf000); + vmcs_writel(GUEST_CS_BASE, 0x000f0000); + } else { + vmcs_write16(GUEST_CS_SELECTOR, vmx->vcpu.sipi_vector << 8); + vmcs_writel(GUEST_CS_BASE, vmx->vcpu.sipi_vector << 12); + } vmcs_write32(GUEST_CS_LIMIT, 0xffff); vmcs_write32(GUEST_CS_AR_BYTES, 0x9b); @@ -1451,7 +1458,10 @@ static int vmx_vcpu_setup(struct vcpu_vmx *vmx) vmcs_writel(GUEST_SYSENTER_EIP, 0); vmcs_writel(GUEST_RFLAGS, 0x02); - vmcs_writel(GUEST_RIP, 0xfff0); + if (vmx->vcpu.vcpu_id == 0) + vmcs_writel(GUEST_RIP, 0xfff0); + else + vmcs_writel(GUEST_RIP, 0); vmcs_writel(GUEST_RSP, 0); //todo: dr0 = dr1 = dr2 = dr3 = 0; dr6 = 0xffff0ff0 @@ -2201,6 +2211,14 @@ static int vmx_vcpu_run(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run) u8 fail; int r; + if (unlikely(vcpu->mp_state == VCPU_MP_STATE_SIPI_RECEIVED)) { + printk("vcpu %d received sipi with vector # %x\n", + vcpu->vcpu_id, vcpu->sipi_vector); + kvm_lapic_reset(vcpu); + vmx_vcpu_setup(vmx); + vcpu->mp_state = VCPU_MP_STATE_RUNNABLE; + } + preempted: if (vcpu->guest_debug.enabled) kvm_guest_debug_pre(vcpu); |