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| author | Pavel Dovgalyuk <Pavel.Dovgaluk@ispras.ru> | 2015-09-17 19:24:11 +0300 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2015-09-25 12:04:44 +0200 |
| commit | a4fc321219cc1c6bd5ca1262cdbbb2e8cee8d56e (patch) | |
| tree | dac51c285ae87e063bf1ff588c7ce537b7d06bc9 /target-i386 | |
| parent | 6220e900bcdc524a175b2d2e725ebb9bb11a0008 (diff) | |
| download | qemu-a4fc321219cc1c6bd5ca1262cdbbb2e8cee8d56e.zip qemu-a4fc321219cc1c6bd5ca1262cdbbb2e8cee8d56e.tar.gz qemu-a4fc321219cc1c6bd5ca1262cdbbb2e8cee8d56e.tar.bz2 | |
i386: interrupt poll processing
This patch updates x86_cpu_exec_interrupt function.
It can process two interrupt request at a time (poll and another one).
This makes its execution non-deterministic. Determinism is requred
for recorded icount execution.
Signed-off-by: Pavel Dovgalyuk <pavel.dovgaluk@ispras.ru>
Message-Id: <20150917162410.8676.13042.stgit@PASHA-ISP.def.inno>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'target-i386')
| -rw-r--r-- | target-i386/seg_helper.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/target-i386/seg_helper.c b/target-i386/seg_helper.c index 1a3a2e7..1cbe559 100644 --- a/target-i386/seg_helper.c +++ b/target-i386/seg_helper.c @@ -1321,6 +1321,9 @@ bool x86_cpu_exec_interrupt(CPUState *cs, int interrupt_request) if (interrupt_request & CPU_INTERRUPT_POLL) { cs->interrupt_request &= ~CPU_INTERRUPT_POLL; apic_poll_irq(cpu->apic_state); + /* Don't process multiple interrupt requests in a single call. + This is required to make icount-driven execution deterministic. */ + return true; } #endif if (interrupt_request & CPU_INTERRUPT_SIPI) { |