On Fri, Sep 22, 2023 at 09:28:40PM +0200, Olaf Hering wrote:
> Use the hole prior shared_gpa_boundary to store the result of get_vtl.
> This reduces the size by 8 bytes.
>
> Signed-off-by: Olaf Hering
Applied to hyperv-fixes. Thanks.
On Fri, Sep 22, 2023 at 11:38:35AM -0700, Nuno Das Neves wrote:
> Add mshv, mshv_root, and mshv_vtl modules:
>
> Module mshv is the parent module to the other two. It provides /dev/mshv,
> plus some common hypercall helper code. When one of the child modules is
> loaded, it is registered with the
Use the hole prior shared_gpa_boundary to store the result of get_vtl.
This reduces the size by 8 bytes.
Signed-off-by: Olaf Hering
---
v2: move vtl up, as suggested by Dexuan Cui
include/asm-generic/mshyperv.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/include/asm-gene
On Fri, Sep 22, 2023 at 11:38:22AM -0700, Nuno Das Neves wrote:
> x86_64 and arm64 implementations to get the hypervisor version
> information. Store these in hv_hypervisor_version_info structure to
> simplify parsing the fields.
>
> Replace the existing parsing when printing the version numbers a
On Fri, Sep 22, 2023 at 11:38:21AM -0700, Nuno Das Neves wrote:
> In x86 hyperv-tlfs, HV_REGISTER_ prefix is used to indicate MSRs
> accessed via rdmsrl/wrmsrl. But in ARM64, HV_REGISTER_ instead indicates
> VP registers accessed via get/set vp registers hypercall.
>
> This is due to HV_REGISTER_*
On Fri, Sep 22, 2023 at 11:38:32AM -0700, Nuno Das Neves wrote:
> Signed-off-by: Nuno Das Neves
> Acked-by: Jonathan Corbet
Acked-by: Wei Liu
On Tue, Sep 19, 2023 at 06:18:53AM +, Dexuan Cui wrote:
> > From: Olaf Hering
> > Sent: Monday, September 18, 2023 9:02 AM
> > [...]
> > Use the hole prior shared_gpa_boundary to store the result of get_vtl.
> > This reduces the size by 8 bytes.
> > [...]
> > --- a/include/asm-generic/mshyper
On Tue, Sep 19, 2023 at 04:36:01AM -0700, Saurabh Sengar wrote:
> Add "#define pr_fmt()" in hv_init.c to use "Hyper-V:" as common
> print prefix for all pr_*() statements in this file.
>
> Remove the "Hyper-V:" already prefixed in couple of prints.
>
> Signed-off-by: Saurabh Sengar
Applied to h
On Thu, Sep 21, 2023 at 09:58:40PM -0700, Saurabh Sengar wrote:
> There has been cases reported where HYPERV_VTL_MODE is enabled by mistake,
> on a non Hyper-V platforms. This causes the hv_vtl_early_init function to
> be called in an non Hyper-V/VTL platforms which results the memory
> corruption.
On Tue, Sep 19, 2023 at 09:04:35PM -0700, Saurabh Sengar wrote:
> When Linux runs in a non-default VTL (CONFIG_HYPERV_VTL_MODE=y),
> get_vtl() must never fail as its return value is used in negotiations
> with the host. In the more generic case, (CONFIG_HYPERV_VTL_MODE=n) the
> VTL is always zero s
These must be in uapi because they will be used in the mshv ioctl API.
Version numbers for each file:
hvhdk.h 25212
hvhdk_mini.h25294
hvgdk.h 25125
hvgdk_mini.h25294
These are unstable interfaces and as such must be compiled independently
from published interfaces found in
The definition conflicts with one added in hvgdk.h as part of the mshv
driver so must be moved to hyperv-tlfs.h.
This structure should be in hyperv-tlfs.h anyway, since it is part of
the TLFS document.
Signed-off-by: Nuno Das Neves
Acked-by: Wei Liu
---
include/asm-generic/hyperv-tlfs.h | 9 ++
Factor out logic for converting numa node to proximity domain info into
a helper function, and export it.
Change hv_proximity_domain_info to a struct to simplify the code.
Signed-off-by: Nuno Das Neves
Reviewed-by: Wei Liu
---
arch/x86/hyperv/hv_proc.c | 8 ++--
drivers/acpi/numa/
This is a more flexible approach for determining whether to allocate the
output page.
Signed-off-by: Nuno Das Neves
Acked-by: Wei Liu
---
drivers/hv/hv_common.c | 21 +
1 file changed, 17 insertions(+), 4 deletions(-)
diff --git a/drivers/hv/hv_common.c b/drivers/hv/hv_comm
Signed-off-by: Nuno Das Neves
Acked-by: Jonathan Corbet
---
Documentation/userspace-api/ioctl/ioctl-number.rst | 2 ++
1 file changed, 2 insertions(+)
diff --git a/Documentation/userspace-api/ioctl/ioctl-number.rst
b/Documentation/userspace-api/ioctl/ioctl-number.rst
index 4ea5b837399a..71e6d2
These hypercalls are not arch-specific. Move them to common code.
Signed-off-by: Nuno Das Neves
Acked-by: Wei Liu
---
arch/x86/hyperv/hv_proc.c | 152
arch/x86/include/asm/mshyperv.h | 1 -
drivers/hv/hv_common.c | 147 ++
This will handle SYNIC interrupts such as intercepts, doorbells, and
scheduling messages intended for the mshv driver.
Signed-off-by: Nuno Das Neves
Reviewed-by: Wei Liu
Reviewed-by: Tianyu Lan
---
arch/x86/kernel/cpu/mshyperv.c | 9 +
drivers/hv/hv_common.c | 5 +
include/
Add a pointer hv_synic_eventring_tail to track the tail pointer for the
SynIC event ring buffer for each SINT.
This will be used by the mshv driver, but must be tracked independently
since the driver module could be removed and re-inserted.
Signed-off-by: Nuno Das Neves
Reviewed-by: Wei Liu
---
These will be used by the mshv_vtl driver.
Signed-off-by: Nuno Das Neves
Acked-by: Wei Liu
---
drivers/hv/hv.c | 2 ++
drivers/hv/hyperv_vmbus.h | 1 +
drivers/hv/vmbus_drv.c| 3 ++-
3 files changed, 5 insertions(+), 1 deletion(-)
diff --git a/drivers/hv/hv.c b/drivers/hv/hv.c
in
Add asm-generic/hyperv-defs.h. It includes hyperv-tlfs.h or hvhdk.h
depending on compile-time constant HV_HYPERV_DEFS which will be defined in
the mshv driver.
This is needed to keep unstable Hyper-V interfaces independent of
hyperv-tlfs.h. This ensures hvhdk.h replaces hyperv-tlfs.h in the mshv
d
hv_status_to_errno translates hyperv statuses to linux error codes.
This is useful for returning something linux-friendly from a hypercall
helper function.
hv_status_to_string improves clarity of error messages.
Signed-off-by: Nuno Das Neves
Acked-by: Wei Liu
---
arch/x86/hyperv/hv_init.c
In x86 hyperv-tlfs, HV_REGISTER_ prefix is used to indicate MSRs
accessed via rdmsrl/wrmsrl. But in ARM64, HV_REGISTER_ instead indicates
VP registers accessed via get/set vp registers hypercall.
This is due to HV_REGISTER_* names being used by hv_set/get_register,
with the arch-specific version d
Factor out logic for determining if we should set the auto eoi flag in SINT
register.
Signed-off-by: Nuno Das Neves
Reviewed-by: Wei Liu
---
drivers/hv/hv.c| 12 +---
include/asm-generic/mshyperv.h | 13 +
2 files changed, 14 insertions(+), 11 deletions(-)
d
This series introduces support for creating and running guest machines
while running on the Microsoft Hypervisor. [0]
This is done via an IOCTL interface accessed through /dev/mshv, similar to
/dev/kvm. Another series introducing this support was previously posted.
[1]
These interfaces support VMM
x86_64 and arm64 implementations to get the hypervisor version
information. Store these in hv_hypervisor_version_info structure to
simplify parsing the fields.
Replace the existing parsing when printing the version numbers at boot.
Signed-off-by: Nuno Das Neves
---
arch/arm64/hyperv/mshyperv.c
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