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7770b6f78a
qemu/hw
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Anton Blanchard 7770b6f78a pseries: Fix stalls on hypervisor virtual console 
A number of users are reporting stalls when using the pseries
hypervisor virtual console.

A simple test case is to paste 15 or 17 characters at a time
into the console. Pasting 15 characters at a time works fine
but pasting 17 characters hangs for a random amount of time.
Other activity (network, qemu monitor etc) unblocks it.

If qemu-char tries to send more than 16 characters at once,
vty_can_receive returns false. At this point we have to
wait for the guest to consume that output. Everything is good
so far.

The problem occurs when the the guest does consume the output.
We need to signal back to the qemu-char layer that we are
ready for more input. Without this we block until something
else kicks us (eg network activity).

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Alexander Graf <agraf@suse.de>
2013-09-02 10:06:41 +02:00
..
9pfs virtio-9p-device: Avoid freeing uninitialized memory 2013-08-01 11:18:24 -05:00
acpi aio / timers: Switch entire codebase to the new timer API 2013-08-22 19:14:24 +02:00
alpha aio / timers: Switch entire codebase to the new timer API 2013-08-22 19:14:24 +02:00
arm aio / timers: Switch entire codebase to the new timer API 2013-08-22 19:14:24 +02:00
audio aio / timers: Switch entire codebase to the new timer API 2013-08-22 19:14:24 +02:00
block aio / timers: Switch entire codebase to the new timer API 2013-08-22 19:14:24 +02:00
bt aio / timers: Switch entire codebase to the new timer API 2013-08-22 19:14:24 +02:00
char pseries: Fix stalls on hypervisor virtual console 2013-09-02 10:06:41 +02:00
core pc,pci,virtio fixes and cleanups 2013-08-29 17:19:19 -05:00
cpu default-configs: Fix A9MP and A15MP config names 2013-08-20 14:54:32 +01:00
cris memory: add owner argument to initialization functions 2013-07-04 17:42:44 +02:00
display aio / timers: Switch entire codebase to the new timer API 2013-08-22 19:14:24 +02:00
dma aio / timers: Switch entire codebase to the new timer API 2013-08-22 19:14:24 +02:00
gpio gpio/zaurus: QOM cast cleanup 2013-07-29 21:06:57 +02:00
i2c exynos4210_i2c: QOM cast cleanup 2013-07-29 21:07:02 +02:00
i386 Merge remote-tracking branch 'qemu-kvm/uq/master' into stable-1.5 2013-08-29 17:21:51 -05:00
ide aio / timers: Switch entire codebase to the new timer API 2013-08-22 19:14:24 +02:00
input aio / timers: Switch entire codebase to the new timer API 2013-08-22 19:14:24 +02:00
intc aio / timers: Switch entire codebase to the new timer API 2013-08-22 19:14:24 +02:00
isa i82378: Cleanup implementation 2013-07-31 23:25:41 +02:00
lm32 lm32_juart: QOM cast cleanup 2013-07-29 21:06:28 +02:00
m68k memory: add owner argument to initialization functions 2013-07-04 17:42:44 +02:00
microblaze microblaze: Fix latent bug with default DTB lookup 2013-07-09 13:38:58 -05:00
mips aio / timers: Switch entire codebase to the new timer API 2013-08-22 19:14:24 +02:00
misc Merge remote-tracking branch 'qemu-kvm/uq/master' into stable-1.5 2013-08-29 17:21:51 -05:00
moxie memory: add owner argument to initialization functions 2013-07-04 17:42:44 +02:00
net aio / timers: Switch entire codebase to the new timer API 2013-08-22 19:14:24 +02:00
nvram fw_cfg: the I/O port variant expects little-endian 2013-08-07 12:48:15 -05:00
openrisc Merge remote-tracking branch 'stefanha/block' into staging 2013-08-26 09:19:50 -05:00
pci pcie_port: Turn PCIEPort and PCIESlot into abstract QOM types 2013-07-29 20:45:24 +02:00
pci-bridge i82801b11: Fix i82801b11 PCI host bridge config space 2013-08-12 12:07:12 +03:00
pci-host pci-host/prep: Set isa_mem_base in the PCI host bridge 2013-07-31 23:25:27 +02:00
ppc PPC: E500: Generate device tree on reset 2013-09-02 10:06:40 +02:00
s390x s390: provide I/O subsystem reset 2013-08-30 12:49:30 +02:00
scsi spapr: Rename 'dprintf' to 'DPRINTF' 2013-07-29 19:56:46 -05:00
sd aio / timers: Switch entire codebase to the new timer API 2013-08-22 19:14:24 +02:00
sh4 sh4: unbreak r2d 2013-07-25 08:12:27 -05:00
sparc sun4: Don't prematurely explode QEMUMachineInitArgs 2013-08-21 23:19:27 +03:00
sparc64 pc,pci,virtio fixes and cleanups 2013-08-29 17:19:19 -05:00
ssi xilinx_spi: QOM cast cleanup 2013-07-29 21:07:01 +02:00
timer aio / timers: Switch entire codebase to the new timer API 2013-08-22 19:14:24 +02:00
tpm aio / timers: Untangle include files 2013-08-22 19:10:27 +02:00
unicore32 memory: add owner argument to initialization functions 2013-07-04 17:42:44 +02:00
usb aio / timers: Switch entire codebase to the new timer API 2013-08-22 19:14:24 +02:00
virtio Merge remote-tracking branch 'qemu-kvm/uq/master' into stable-1.5 2013-08-29 17:21:51 -05:00
watchdog aio / timers: Switch entire codebase to the new timer API 2013-08-22 19:14:24 +02:00
xen devices: Associate devices to their logical category 2013-07-29 10:37:09 -05:00
xtensa aio / timers: Switch entire codebase to the new timer API 2013-08-22 19:14:24 +02:00
Makefile.objs virtio: simplify Makefile conditionals 2013-04-19 16:18:11 +02:00