ExternalVendorCode/genode
1
0
Fork 0
mirror of https://github.com/genodelabs/genode.git synced 2024-12-19 21:57:55 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

vancouver: Nested events during EPT violation

Browse Source 
When an EPT/NPT fault occurs during IDT vectoring, the original event must
be reinjected.  Additionally we may have to inject an IRQ window if another
event is already pending.
This commit is contained in:
Markus Partheymueller 2012-10-15 14:25:07 +02:00 committed by Norman Feske
parent 1434d0948a
commit 5c886b4962
1 changed files with 8 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
ports/src/vancouver/main.cc
View File

@ -446,8 +446,14 @@ class Vcpu_dispatcher : public Genode::Thread<STACK_SIZE>,
utcb->mtd = 0;
/* EPT violation during IDT vectoring? */
if (utcb->inj_info & 0x80000000)
Logging::panic("EPT violation during IDT vectoring - not handled\n");
if (utcb->inj_info & 0x80000000) {
utcb->mtd |= MTD_INJ;
Logging::printf("EPT violation during IDT vectoring.\n");
CpuMessage _win(CpuMessage::TYPE_CALC_IRQWINDOW, static_cast<CpuState *>(utcb), utcb->mtd);
_win.mtr_out = MTD_INJ;
if (!_vcpu->executor.send(_win, true))
Logging::panic("nobody to execute %s at %x:%x\n", __func__, utcb->cs.sel, utcb->eip);
}
Nova::Utcb * u = (Nova::Utcb *)utcb;
u->set_msg_word(0);