Stefan Hajnoczi 70556264a8 libqos: use microseconds instead of iterations for virtio timeout ... Some hosts are slow or overloaded so test execution takes a long time. Test cases use timeouts to protect against an infinite loop stalling the test forever (especially important in automated test setups). Commit 6cd14054b6 ("libqos virtio: Increase ISR timeout") increased the clock_step() value in an attempt to lengthen the virtio interrupt wait timeout, but timeout failures are still occuring on the Travis automated testing platform. This is because clock_step() only affects the guest's virtual time. Virtio requests can be bottlenecked on host disk I/O latency - which cannot be improved by stepping the clock, so the fix was ineffective. This patch changes the qvirtio_wait_queue_isr() and qvirtio_wait_config_isr() timeout mechanism from loop iterations to microseconds. This way the test case can specify an absolute 30 second timeout. Number of loop iterations is not a reliable timeout mechanism since the speed depends on many factors including host performance. Tests should no longer timeout on overloaded Travis instances. Cc: Marc Marí <marc.mari.barcelo@gmail.com> Reported-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>		2014-09-29 17:31:11 +01:00
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fw_cfg.c
fw_cfg.h
i2c-omap.c
i2c.c
i2c.h
malloc-pc.c	libqos: add a simple first-fit memory allocator	2014-09-08 11:12:43 +01:00
malloc-pc.h	libqos: add a simple first-fit memory allocator	2014-09-08 11:12:43 +01:00
malloc.h
pci-pc.c
pci-pc.h
pci.c	ahci: add test_pci_enable to ahci-test.	2014-09-22 11:39:40 +01:00
pci.h
virtio-pci.c
virtio-pci.h
virtio.c	libqos: use microseconds instead of iterations for virtio timeout	2014-09-29 17:31:11 +01:00
virtio.h	libqos: use microseconds instead of iterations for virtio timeout	2014-09-29 17:31:11 +01:00