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| author | Jan Kiszka <jan.kiszka@siemens.com> | 2010-04-14 15:51:09 +0200 |
|---|---|---|
| committer | Avi Kivity <avi@redhat.com> | 2010-05-17 12:17:46 +0300 |
| commit | e269fb2189fb86d79d64c0ca74c6c1a549ad4aa3 (patch) | |
| tree | 627c658efaec155d1f295d1fc7b8abded9d4f861 /arch/x86/kvm/x86.c | |
| parent | 0760d44868f351ba30fc9a08cf1830e46aa72466 (diff) | |
| download | lwn-e269fb2189fb86d79d64c0ca74c6c1a549ad4aa3.tar.gz lwn-e269fb2189fb86d79d64c0ca74c6c1a549ad4aa3.zip | |
KVM: x86: Push potential exception error code on task switches
When a fault triggers a task switch, the error code, if existent, has to
be pushed on the new task's stack. Implement the missing bits.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Diffstat (limited to 'arch/x86/kvm/x86.c')
| -rw-r--r-- | arch/x86/kvm/x86.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index 40991527f54a..58a295c6bf62 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -4778,7 +4778,8 @@ int kvm_arch_vcpu_ioctl_set_mpstate(struct kvm_vcpu *vcpu, return 0; } -int kvm_task_switch(struct kvm_vcpu *vcpu, u16 tss_selector, int reason) +int kvm_task_switch(struct kvm_vcpu *vcpu, u16 tss_selector, int reason, + bool has_error_code, u32 error_code) { int cs_db, cs_l, ret; cache_all_regs(vcpu); @@ -4796,7 +4797,8 @@ int kvm_task_switch(struct kvm_vcpu *vcpu, u16 tss_selector, int reason) ? X86EMUL_MODE_PROT32 : X86EMUL_MODE_PROT16; ret = emulator_task_switch(&vcpu->arch.emulate_ctxt, &emulate_ops, - tss_selector, reason); + tss_selector, reason, has_error_code, + error_code); if (ret == X86EMUL_CONTINUE) kvm_x86_ops->set_rflags(vcpu, vcpu->arch.emulate_ctxt.eflags); |