From: Nuno Das Neves Sent: Thursday, March
11, 2021 11:38 AM
>
> On 2/8/2021 11:47 AM, Michael Kelley wrote:
> > From: Nuno Das Neves Sent: Friday,
> > November
> 20, 2020 4:31 PM
> >>
> >> Same idea as synic setup in drivers/hv/hv.c:hv_synic_enable_regs()
> >> and hv_synic_disable_regs().
>
From: Nuno Das Neves Sent: Monday, March 8,
2021 11:14 AM
>
> On 2/8/2021 11:45 AM, Michael Kelley wrote:
> > From: Nuno Das Neves Sent: Friday,
> > November
> 20, 2020 4:30 PM
> >>
[snip]
> >> @@ -245,16 +249,318 @@ hv_call_delete_partition(u64 partition_id)
> >>return
From: Nuno Das Neves Sent: Thursday, March
4, 2021 3:49 PM
>
> On 2/8/2021 11:42 AM, Michael Kelley wrote:
> > From: Nuno Das Neves Sent: Friday,
> > November
> 20, 2020 4:30 PM
> >>
[snip]
> >> +
> >> +static int
> >> +hv_call_create_partition(
> >> + u64 flags,
> >> +
From: Nuno Das Neves Sent: Friday, November
20, 2020 4:31 PM
>
> Introduce mmap interface for a virtual processor, exposing a page for
> setting and getting common registers while the VP is suspended.
>
> This provides a more performant and convenient way to get and set these
> registers in
From: Nuno Das Neves Sent: Friday, November
20, 2020 4:31 PM
> To: linux-hyp...@vger.kernel.org
> Cc: virtualization@lists.linux-foundation.org; linux-ker...@vger.kernel.org;
> Michael Kelley
> ; virem...@linux.microsoft.com; Sunil Muthuswamy
> ; nunodasne...@linux.microsoft.com;
>
From: Nuno Das Neves Sent: Friday, November
20, 2020 4:31 PM
>
> Same idea as synic setup in drivers/hv/hv.c:hv_synic_enable_regs()
> and hv_synic_disable_regs().
> Setting up synic registers in both vmbus driver and mshv would clobber
> them, but the vmbus driver will not run in the root
From: Nuno Das Neves Sent: Friday, November
20, 2020 4:30 PM
>
> Add ioctls for getting and setting virtual processor registers.
>
> Co-developed-by: Lillian Grassin-Drake
> Signed-off-by: Lillian Grassin-Drake
> Signed-off-by: Nuno Das Neves
> ---
> Documentation/virt/mshv/api.rst
From: Nuno Das Neves Sent: Friday, November
20, 2020 4:30 PM
>
> Introduce ioctls for mapping and unmapping regions of guest memory.
>
> Uses a table of memory 'slots' similar to KVM, but the slot
> number is not visible to userspace.
>
> For now, this simple implementation requires each new
From: Nuno Das Neves Sent: Friday, November
20, 2020 4:30 PM
>
> Withdraw the memory from a finalized partition and free the pages.
> The partition is now cleaned up correctly when the fd is released.
>
> Co-developed-by: Lillian Grassin-Drake
> Signed-off-by: Lillian Grassin-Drake
>
From: Nuno Das Neves Sent: Friday, November
20, 2020 4:30 PM
>
> Add hypercalls for fully setting up and mostly tearing down a guest
> partition.
> The teardown operation will generate an error as the deposited
> memory has not been withdrawn.
> This is fixed in the next patch.
>
>
From: Nuno Das Neves Sent: Friday, November
20, 2020 4:30 PM
>
> Reserve ioctl number in userpsace-api/ioctl/ioctl-number.rst
> Introduce MSHV_REQUEST_VERSION ioctl.
> Introduce documentation for /dev/mshv in Documentation/virt/mshv
>
> Signed-off-by: Nuno Das Neves
> ---
>
From: Nuno Das Neves Sent: Friday, November
20, 2020 4:30 PM
>
> This patch series provides a userspace interface for creating and running
> guest
> virtual machines while running on the Microsoft Hypervisor [0].
>
> Since managing guest machines can only be done when Linux is the root
>
From: Wei Liu Sent: Thursday, February 4, 2021 9:57 AM
>
> On Thu, Feb 04, 2021 at 05:43:16PM +, Michael Kelley wrote:
> [...]
> > > remove_cpuhp_state:
> > > diff --git a/arch/x86/hyperv/irqdomain.c b/arch/x86/hyperv/irqdomain.c
> > > new file mode 100644
> > > index
From: Wei Liu Sent: Wednesday, February 3, 2021 7:05 AM
>
> When Linux runs as the root partition on Microsoft Hypervisor, its
> interrupts are remapped. Linux will need to explicitly map and unmap
> interrupts for hardware.
>
> Implement an MSI domain to issue the correct hypercalls. And
From: Wei Liu Sent: Wednesday, February 3, 2021 7:05 AM
>
> Just like MSI/MSI-X, IO-APIC interrupts are remapped by Microsoft
> Hypervisor when Linux runs as the root partition. Implement an IRQ
> domain to handle mapping and unmapping of IO-APIC interrupts.
>
> Signed-off-by: Wei Liu
> ---
>
From: Wei Liu Sent: Wednesday, February 3, 2021 7:05 AM
>
> We will need to identify the device we want Microsoft Hypervisor to
> manipulate. Introduce the data structures for that purpose.
>
> They will be used in a later patch.
>
> Signed-off-by: Sunil Muthuswamy
> Co-Developed-by: Sunil
From: Wei Liu Sent: Wednesday, February 3, 2021 7:04 AM
>
> They are used to deposit pages into Microsoft Hypervisor and bring up
> logical and virtual processors.
>
> Signed-off-by: Lillian Grassin-Drake
> Signed-off-by: Sunil Muthuswamy
> Signed-off-by: Nuno Das Neves
> Co-Developed-by:
From: Wei Liu Sent: Wednesday, February 3, 2021 7:04 AM
>
> There is already a stub function for pxm_to_node but conversion to the
> other direction is missing.
>
> It will be used by Microsoft Hypervisor code later.
>
> Signed-off-by: Wei Liu
> ---
> v6: new
> ---
> include/acpi/acpi_numa.h
From: Wei Liu Sent: Wednesday, February 3, 2021 7:04 AM
>
> We will need the partition ID for executing some hypercalls later.
>
> Signed-off-by: Lillian Grassin-Drake
> Co-Developed-by: Sunil Muthuswamy
> Signed-off-by: Wei Liu
> ---
> v6:
> 1. Use u64 status.
>
> v3:
> 1. Make
From: Wei Liu Sent: Wednesday, February 3, 2021 7:04 AM
>
> When Linux runs as the root partition, it will need to make hypercalls
> which return data from the hypervisor.
>
> Allocate pages for storing results when Linux runs as the root
> partition.
>
> Signed-off-by: Lillian Grassin-Drake
From: Wei Liu Sent: Wednesday, February 3, 2021 7:04 AM
>
> For now we can use the privilege flag to check. Stash the value to be
> used later.
>
> Put in a bunch of defines for future use when we want to have more
> fine-grained detection.
>
> Signed-off-by: Wei Liu
> Reviewed-by: Pavel
From: Wei Liu Sent: Wednesday, February 3, 2021 6:09 AM
>
> On Wed, Feb 03, 2021 at 02:49:53PM +0100, Arnd Bergmann wrote:
> > On Wed, Feb 3, 2021 at 2:26 PM Wei Liu wrote:
> > > On Tue, Feb 02, 2021 at 05:02:48PM +, Wei Liu wrote:
> > > > On Tue, Jan 26, 2021 at 01:26:52AM +, Michael
From: Wei Liu Sent: Wednesday, February 3, 2021 4:47 AM
>
> On Wed, Jan 27, 2021 at 05:47:08AM +, Michael Kelley wrote:
> > From: Wei Liu Sent: Wednesday, January 20, 2021 4:01 AM
> > >
> > > Just like MSI/MSI-X, IO-APIC interrupts are remapped by Microsoft
> > > Hypervisor when Linux runs
From: Wei Liu Sent: Tuesday, February 2, 2021 7:04 AM
>
> On Tue, Jan 26, 2021 at 12:48:37AM +, Michael Kelley wrote:
> > From: Wei Liu Sent: Wednesday, January 20, 2021 4:01 AM
> > >
> > > We will need the partition ID for executing some hypercalls later.
> > >
> > > Signed-off-by: Lillian
From: Wei Liu Sent: Tuesday, February 2, 2021 9:32 AM
>
> On Wed, Jan 27, 2021 at 05:47:04AM +, Michael Kelley wrote:
> > From: Wei Liu Sent: Wednesday, January 20, 2021 4:01 AM
> > >
> > > When Linux runs as the root partition on Microsoft Hypervisor, its
> > > interrupts are remapped.
From: Wei Liu Sent: Wednesday, January 20, 2021 4:01 AM
>
> Just like MSI/MSI-X, IO-APIC interrupts are remapped by Microsoft
> Hypervisor when Linux runs as the root partition. Implement an IRQ
> domain to handle mapping and unmapping of IO-APIC interrupts.
>
> Signed-off-by: Wei Liu
> ---
>
From: Wei Liu Sent: Wednesday, January 20, 2021 4:01 AM
>
> When Linux runs as the root partition on Microsoft Hypervisor, its
> interrupts are remapped. Linux will need to explicitly map and unmap
> interrupts for hardware.
>
> Implement an MSI domain to issue the correct hypercalls. And
From: Wei Liu Sent: Wednesday, January 20, 2021 4:01 AM
>
> We will soon use the same structure to handle IO-APIC interrupts as
> well. Introduce an enum to identify the source and a data structure for
> IO-APIC RTE.
>
> While at it, update pci-hyperv.c to use the enum.
>
> No functional
From: Wei Liu Sent: Wednesday, January 20, 2021 4:01 AM
>
> They are used to deposit pages into Microsoft Hypervisor and bring up
> logical and virtual processors.
>
> Signed-off-by: Lillian Grassin-Drake
> Signed-off-by: Sunil Muthuswamy
> Signed-off-by: Nuno Das Neves
> Co-Developed-by:
From: Wei Liu Sent: Wednesday, January 20, 2021 4:01 AM
>
> Microsoft Hypervisor requires the root partition to make a few
> hypercalls to setup application processors before they can be used.
>
> Signed-off-by: Lillian Grassin-Drake
> Signed-off-by: Sunil Muthuswamy
> Co-Developed-by:
From: Wei Liu Sent: Wednesday, January 20, 2021 4:01 AM
>
> We will soon need to access fields inside the MSI address and MSI data
> fields. Introduce hv_msi_address_register and hv_msi_data_register.
>
> Fix up one user of hv_msi_entry in mshyperv.h.
>
> No functional change expected.
>
>
From: Wei Liu Sent: Wednesday, January 20, 2021 4:01 AM
>
> When Linux runs as the root partition, it will need to make hypercalls
> which return data from the hypervisor.
>
> Allocate pages for storing results when Linux runs as the root
> partition.
>
> Signed-off-by: Lillian Grassin-Drake
From: Wei Liu Sent: Wednesday, January 20, 2021 4:01 AM
>
> Signed-off-by: Sunil Muthuswamy
> Co-Developed-by: Sunil Muthuswamy
> Signed-off-by: Wei Liu
> ---
> arch/x86/include/asm/hyperv-tlfs.h | 13 +++
> include/asm-generic/hyperv-tlfs.h | 36 ++
> 2
From: Wei Liu Sent: Wednesday, January 20, 2021 4:01 AM
>
> We will need to identify the device we want Microsoft Hypervisor to
> manipulate. Introduce the data structures for that purpose.
>
> They will be used in a later patch.
>
> Signed-off-by: Sunil Muthuswamy
> Co-Developed-by: Sunil
From: Wei Liu Sent: Wednesday, January 20, 2021 4:01 AM
>
> When Linux is running as the root partition, the hypercall page will
> have already been setup by Hyper-V. Copy the content over to the
> allocated page.
>
> Add checks to hv_suspend & co to bail early because they are not
> supported
From: Wei Liu Sent: Wednesday, January 20, 2021 4:01 AM
>
> We will need the partition ID for executing some hypercalls later.
>
> Signed-off-by: Lillian Grassin-Drake
> Co-Developed-by: Sunil Muthuswamy
> Signed-off-by: Wei Liu
> ---
> v3:
> 1. Make hv_get_partition_id static.
> 2. Change
From: Wei Liu Sent: Wednesday, January 20, 2021 4:01 AM
>
> This makes the name match Hyper-V TLFS.
>
> Signed-off-by: Wei Liu
> Reviewed-by: Vitaly Kuznetsov
> ---
> include/asm-generic/hyperv-tlfs.h | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git
From: Wei Liu Sent: Wednesday, January 20, 2021 4:01 AM
>
> When Linux runs as the root partition, the setup required for TSC page
> is different. Luckily Linux also has access to the MSR based
> clocksource. We can just disable the TSC page clocksource if Linux is
> the root partition.
>
>
From: Wei Liu Sent: Wednesday, January 20, 2021 4:01 AM
>
> The IOMMU code needs more work. We're sure for now the IRQ remapping
> hooks are not applicable when Linux is the root partition.
>
> Signed-off-by: Wei Liu
> Acked-by: Joerg Roedel
> Reviewed-by: Vitaly Kuznetsov
> ---
>
From: Wei Liu Sent: Wednesday, January 20, 2021 4:01 AM
>
> There is no VMBus and the other infrastructures initialized in
> hv_acpi_init when Linux is running as the root partition.
>
> Signed-off-by: Wei Liu
> ---
> v3: Return 0 instead of -ENODEV.
> ---
> drivers/hv/vmbus_drv.c | 3 +++
>
From: Wei Liu Sent: Wednesday, January 20, 2021 4:01 AM
>
> For now we can use the privilege flag to check. Stash the value to be
> used later.
>
> Put in a bunch of defines for future use when we want to have more
> fine-grained detection.
>
> Signed-off-by: Wei Liu
> ---
> v3: move
From: Juergen Gross Sent: Wednesday, January 20, 2021 5:56 AM
>
> The time pvops functions are the only ones left which might be
> used in 32-bit mode and which return a 64-bit value.
>
> Switch them to use the static_call() mechanism instead of pvops, as
> this allows quite some simplification
From: Juergen Gross Sent: Thursday, December 17, 2020 1:31 AM
> The time pvops functions are the only ones left which might be
> used in 32-bit mode and which return a 64-bit value.
>
> Switch them to use the static_call() mechanism instead of pvops, as
> this allows quite some simplification
From: Nadav Amit Sent: Thursday, July 18, 2019 5:59 PM
>
> To improve TLB shootdown performance, flush the remote and local TLBs
> concurrently. Introduce flush_tlb_multi() that does so. Introduce
> paravirtual versions of flush_tlb_multi() for KVM, Xen and hyper-v (Xen
> and hyper-v are only
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