16 Mar, 2013
1 commit
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remove cast for kmalloc return value.
Signed-off-by: Zhang Yanfei
Cc: "K. Y. Srinivasan"
Cc: Haiyang Zhang
Cc: Andrew Morton
Signed-off-by: Greg Kroah-Hartman
28 Feb, 2013
1 commit
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Use the infrastructure for delivering VMBUS interrupts using a
special vector. With this patch, we can now properly handle
the VMBUS interrupts that can be delivered on any CPU. Also,
turn on interrupt load balancing as well.This patch requires the infrastructure that was implemented in the patch:
X86: Handle Hyper-V vmbus interrupts as special hypervisor interruptsSigned-off-by: K. Y. Srinivasan
Signed-off-by: Greg Kroah-Hartman
18 Jan, 2013
7 commits
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Now, cleanup and consolidate reporting of host and vmbus version numbers.
Signed-off-by: K. Y. Srinivasan
Reviewed-by: Haiyang Zhang
Signed-off-by: Greg Kroah-Hartman -
Capture the host build information so it can be presented along with the
negotiated vmbus version information.Signed-off-by: K. Y. Srinivasan
Reviewed-by: Haiyang Zhang
Signed-off-by: Greg Kroah-Hartman -
Vmbus interrupts are unique in that while the interrupt is delivered on a
given vector, these can be handled concurrently on different CPUs. Handle the
vmbus interrupts concurrently on all the CPUs.Signed-off-by: K. Y. Srinivasan
Reviewed-by: Haiyang Zhang
Signed-off-by: Greg Kroah-Hartman -
Now that we can potentially take vmbus interrupts on any CPU, make the
tasklets per-CPU.Signed-off-by: K. Y. Srinivasan
Reviewed-by: Haiyang Zhang
Signed-off-by: Greg Kroah-Hartman -
Now that we have implemented a per-connection signaling mechanism, get rid
of the global signaling state. For hosts that don't support per-connection
signaling handle, we have moved the global state to be a per-channel state.Signed-off-by: K. Y. Srinivasan
Reviewed-by: Haiyang Zhang
Signed-off-by: Greg Kroah-Hartman -
On win8 (ws2012), incoming vmbus interrupt load can be spread across all
available VCPUs in the guest. On a per-channel basis, the interrupts can
be bound to specific CPUs. The Linux notion of cpu ID may be different
from that of the hypervisor's. Setup a mapping structure.Signed-off-by: K. Y. Srinivasan
Reviewed-by: Haiyang Zhang
Signed-off-by: Greg Kroah-Hartman -
In preparation for implementing a per-connection signaling framework,
change the signature of the function hv_signal_event(). The current
code uses a global handle for signaling the host.Signed-off-by: K. Y. Srinivasan
Reviewed-by: Haiyang Zhang
Signed-off-by: Greg Kroah-Hartman
18 Aug, 2012
1 commit
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We wait for about 5 seconds for the success of the hyperv registration even if
we were not in hyperv platform. This is suboptimal, so the patch check the cpuid
in the beginning of hv_acpi_init() instead of in vmbus_bus_init() to fail the
probing immediately.Signed-off-by: Jason Wang
Cc: Haiyang Zhang
Acked-by: K. Y. Srinivasan
Signed-off-by: Greg Kroah-Hartman
14 Aug, 2012
1 commit
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The current guest ID string in use in vmbus driver does not conform
to the MSFT guidelines on guest ID. MSFT currently does not specify
Linux specific guidelines. MSFT however has plans to publish Linux
specific guidelines. This implementation conforms to the yet unpublished
Linux specific guidelines for guest ID. This implementation also broadly
conforms to the current guidelines as well.Signed-off-by: K. Y. Srinivasan
Reviewed-by: Haiyang Zhang
Cc: Bjørn Mork
Cc: Paolo Bonzini
Signed-off-by: Greg Kroah-Hartman
10 Apr, 2012
1 commit
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This function returns negative error codes, but because the type is u16
they get truncated into positive numbers. It doesn't look like the
callers care, but we should fix it anyway as a cleanup.Signed-off-by: Dan Carpenter
Signed-off-by: K. Y. Srinivasan
Signed-off-by: Greg Kroah-Hartman
10 Feb, 2012
1 commit
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The current code arbirarily limited the number of CPUs the guest could have.
Change that so that we can support the maximum number of CPUs the guest can
support. While we use NR_CPUS to size the per-cpu state all we are allocating
based on NR_CPUS are the pointers to per-cpu state that will be allocatted in
the context of the initializing CPU. This patch triggers a checkpatch warning
for the usage of NR_CPU and since all we are allocating a couple of pointers
per CPU, it should be ok.Signed-off-by: K. Y. Srinivasan
Signed-off-by: Haiyang Zhang
Signed-off-by: Greg Kroah-Hartman
13 Dec, 2011
2 commits
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In preparation for eventually supporting kexec in Linux VMs on Hyper-V,
get rid of an unnecessary check in hv_init().Signed-off-by: K. Y. Srinivasan
Signed-off-by: Haiyang Zhang
Signed-off-by: Greg Kroah-Hartman -
It turns out that the vmbus driver can be made unloadable. Make it
unloadable.Signed-off-by: K. Y. Srinivasan
Signed-off-by: Haiyang Zhang
Signed-off-by: Greg Kroah-Hartman
11 Oct, 2011
2 commits
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No one outside of the hyperv core needs to include the asm/hyperv.h
file, so don't put it in the "global" include/linux/hyperv.h file.Cc: K. Y. Srinivasan
Signed-off-by: Greg Kroah-Hartman -
After many years wandering the desert, it is finally time for the
Microsoft HyperV code to move out of the staging directory. Or at least
the core hyperv bus code, and the utility driver, the rest still have
some review to get through by the various subsystem maintainers.Signed-off-by: Greg Kroah-Hartman
Signed-off-by: K. Y. Srinivasan
