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14 lines
731 B
Diff
14 lines
731 B
Diff
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Bug detected by Genode and patch provided by Anna Lyons:
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http://sel4.systems/pipermail/devel/2018-September/002161.html
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--- src/kernel/sel4/src/arch/x86/c_traps.c
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+++ src/kernel/sel4/src/arch/x86/c_traps.c
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@@ -111,7 +111,7 @@ slowpath(syscall_t syscall)
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{
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#ifdef CONFIG_VTX
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- if (syscall == SysVMEnter) {
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+ if (syscall == SysVMEnter && NODE_STATE(ksCurThread)->tcbArch.tcbVCPU) {
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vcpu_update_state_sysvmenter(NODE_STATE(ksCurThread)->tcbArch.tcbVCPU);
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if (NODE_STATE(ksCurThread)->tcbBoundNotification && notification_ptr_get_state(NODE_STATE(ksCurThread)->tcbBoundNotification) == NtfnState_Active) {
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completeSignal(NODE_STATE(ksCurThread)->tcbBoundNotification, NODE_STATE(ksCurThread));
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