On Thu, Mar 24, 2022 at 09:14:50AM -0700, Michael Kelley wrote:
> Hyper-V VMs have VMbus synthetic devices and PCI pass-thru devices that are
> added
> dynamically via the VMbus protocol and are not represented in the ACPI DSDT.
> Only
> the top level VMbus node exists in the DSDT. As such, on AR
On Tue, Jan 04, 2022 at 04:03:07PM +0100, Christoph Hellwig wrote:
> On Tue, Jan 04, 2022 at 02:51:55PM +0000, Wei Liu wrote:
> > > Please stub out all of swiotlb_mem_remap instead of the ifdef inside the
> > > function.
> >
> > Does this look okay to you?
>
&
On Sun, Jan 02, 2022 at 11:54:46PM -0800, Christoph Hellwig wrote:
> On Fri, Dec 31, 2021 at 11:56:40AM -0500, Tianyu Lan wrote:
> > From: Tianyu Lan
> >
> > HAS_IOMEM option may not be selected on some platforms(e.g, s390) and this
> > will cause compile error due to miss memremap() implementati
On Fri, Dec 31, 2021 at 11:56:40AM -0500, Tianyu Lan wrote:
> From: Tianyu Lan
>
> HAS_IOMEM option may not be selected on some platforms(e.g, s390) and this
> will cause compile error due to miss memremap() implementation. Fix it via
miss -> missingk
> adding HAS_IOMEM check around memremap()
On Mon, Dec 13, 2021 at 02:14:01AM -0500, Tianyu Lan wrote:
> From: Tianyu Lan
[...]
>
> Tianyu Lan (5):
> swiotlb: Add swiotlb bounce buffer remap function for HV IVM
> x86/hyper-v: Add hyperv Isolation VM check in the cc_platform_has()
> hyper-v: Enable swiotlb bounce buffer for Isolation
On Wed, Dec 15, 2021 at 01:00:38PM +0800, Tianyu Lan wrote:
>
>
> On 12/15/2021 6:40 AM, Dave Hansen wrote:
> > On 12/14/21 2:23 PM, Tom Lendacky wrote:
> > > > I don't really understand how this can be more general any *not* get
> > > > utilized by the existing SEV support.
> > >
> > > The Virt
On Mon, Dec 13, 2021 at 02:14:03AM -0500, Tianyu Lan wrote:
> From: Tianyu Lan
>
> Hyper-V provides Isolation VM for confidential computing support and
> guest memory is encrypted in it. Places checking cc_platform_has()
> with GUEST_MEM_ENCRYPT attr should return "True" in Isolation vm. e.g,
> s
On Wed, Dec 01, 2021 at 11:02:54AM -0500, Tianyu Lan wrote:
[...]
> diff --git a/arch/x86/xen/pci-swiotlb-xen.c b/arch/x86/xen/pci-swiotlb-xen.c
> index 46df59aeaa06..30fd0600b008 100644
> --- a/arch/x86/xen/pci-swiotlb-xen.c
> +++ b/arch/x86/xen/pci-swiotlb-xen.c
> @@ -4,6 +4,7 @@
>
> #include
On Wed, Dec 01, 2021 at 11:02:53AM -0500, Tianyu Lan wrote:
> From: Tianyu Lan
>
> Hyper-V provides Isolation VM which has memory encrypt support. Add
> hyperv_cc_platform_has() and return true for check of GUEST_MEM_ENCRYPT
> attribute.
>
> Signed-off-by: Tianyu Lan
> ---
> arch/x86/kernel/cc
On Mon, Aug 09, 2021 at 01:56:07PM -0400, Tianyu Lan wrote:
> From: Tianyu Lan
>
> Add new hvcall guest address host visibility support to mark
> memory visible to host. Call it inside set_memory_decrypted
> /encrypted(). Add HYPERVISOR feature check in the
> hv_is_isolation_supported() to optimi
On Mon, Aug 09, 2021 at 01:56:05PM -0400, Tianyu Lan wrote:
[...]
> static int hv_cpu_init(unsigned int cpu)
> {
> union hv_vp_assist_msr_contents msr = { 0 };
> @@ -85,6 +111,8 @@ static int hv_cpu_init(unsigned int cpu)
> }
> }
>
> + hyperv_init_ghcb();
> +
Why
On Wed, Aug 04, 2021 at 12:13:42PM +0530, Praveen Kumar wrote:
> On 04-08-2021 03:17, Wei Liu wrote:
> >>> +static size_t hv_iommu_unmap(struct iommu_domain *d, unsigned long iova,
> >>> +size_t size, struct iommu_iotlb_gather *gather)
>
On Wed, Aug 04, 2021 at 12:33:54PM +0530, Praveen Kumar wrote:
> On 04-08-2021 03:26, Wei Liu wrote:
> >>> struct iommu_domain domain;
> >>> @@ -774,6 +784,41 @@ static struct iommu_device
> >>> *hv_iommu_probe_device(struct device *dev)
> >>
On Wed, Aug 04, 2021 at 12:20:42AM +0530, Praveen Kumar wrote:
> On 09-07-2021 17:13, Wei Liu wrote:
> > Some devices may have been claimed by the hypervisor already. One such
> > example is a user can assign a NIC for debugging purpose.
> >
> > Ideally Linux should be
On Wed, Aug 04, 2021 at 12:10:45AM +0530, Praveen Kumar wrote:
> On 09-07-2021 17:13, Wei Liu wrote:
> > +static void hv_iommu_domain_free(struct iommu_domain *d)
> > +{
> > + struct hv_iommu_domain *domain = to_hv_iommu_domain(d);
> > + unsigned long flags;
> &g
On Fri, Jul 09, 2021 at 10:17:25PM +0800, Lu Baolu wrote:
> On 2021/7/9 19:43, Wei Liu wrote:
> > When Microsoft Hypervisor runs on Intel platforms it needs to know the
> > reserved regions to program devices correctly. There is no reason to
> > duplicate intel_iommu_get_re
On Fri, Jul 09, 2021 at 01:56:46PM +0100, Robin Murphy wrote:
> On 2021-07-09 12:43, Wei Liu wrote:
> > Microsoft Hypervisor provides a set of hypercalls to manage device
> > domains. The root kernel should parse the DMAR so that it can program
> > the IOMMU (with
On Fri, Jul 09, 2021 at 01:46:19PM +0100, Robin Murphy wrote:
> On 2021-07-09 12:43, Wei Liu wrote:
> > Some devices may have been claimed by the hypervisor already. One such
> > example is a user can assign a NIC for debugging purpose.
> >
> > Ideally Linux should be
command line option for skipping devices. This is a stopgap
solution, so it is intentionally undocumented. Hopefully we can retire
it in the future.
Signed-off-by: Wei Liu
---
drivers/iommu/hyperv-iommu.c | 45
1 file changed, 45 insertions(+)
diff --git a
When Microsoft Hypervisor runs on Intel platforms it needs to know the
reserved regions to program devices correctly. There is no reason to
duplicate intel_iommu_get_resv_regions. Export it.
Signed-off-by: Wei Liu
---
drivers/iommu/intel/iommu.c | 5 +++--
include/linux/intel-iommu.h | 4
Microsoft Hypervisor provides a set of hypercalls to manage device
domains. Implement a type-1 IOMMU using those hypercalls.
Implement DMA remapping as the first step for this driver. Interrupt
remapping will come in a later stage.
Signed-off-by: Wei Liu
---
drivers/iommu/Kconfig| 14
.
Signed-off-by: Wei Liu
---
We may be able to combine alloc and force_parse?
---
drivers/iommu/intel/dmar.c | 38 -
drivers/iommu/intel/iommu.c | 2 +-
drivers/iommu/intel/irq_remapping.c | 2 +-
include/linux/dmar.h| 2 +-
4 files
On Thu, Feb 04, 2021 at 04:41:47PM +, Michael Kelley wrote:
> From: Wei Liu Sent: Wednesday, February 3, 2021 4:47 AM
[...]
> > > > +
> > > > + if (level)
> > > > + intr_desc->trigger_mode =
> > > >
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
---
v6:
1. Simplify code due to changes in a previous patch.
---
arch/x86
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 as the root partition. Implement an IRQ
> &g
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
---
arch/x86/hyperv/irqdomain.c | 54 ++
arch/x86/include/asm
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
---
drivers/iommu/hyperv-iommu.c | 3 ++-
1 file changed, 2 insertions(+), 1 del
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
---
drivers/iommu/hyperv-iommu.c | 3 ++-
1 file changed, 2 insertions(+), 1 del
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
---
drivers/iommu/hyperv-iommu.c | 3 ++-
1 file changed, 2 insertions(+), 1 del
On Thu, Nov 12, 2020 at 04:27:14PM +0100, Vitaly Kuznetsov wrote:
> Wei Liu writes:
>
> > The IOMMU code needs more work. We're sure for now the IRQ remapping
> > hooks are not applicable when Linux is the root.
>
> Super-nitpick: I would suggest we always say '
The IOMMU code needs more work. We're sure for now the IRQ remapping
hooks are not applicable when Linux is the root.
Signed-off-by: Wei Liu
Acked-by: Joerg Roedel
---
drivers/iommu/hyperv-iommu.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/iommu/h
The IOMMU code needs more work. We're sure for now the IRQ remapping
hooks are not applicable when Linux is the root.
Signed-off-by: Wei Liu
---
drivers/iommu/hyperv-iommu.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/iommu/hyperv-iommu.c b/drivers/iommu/h
hwirq(struct msi_domain_info
> *info,
> msi_alloc_info_t *arg)
> {
> - return arg->msi_hwirq;
> + return arg->hwirq;
> }
Acked-by: Wei Liu
___
iommu mailing list
io
perv_ir_set_
>* affinity() set vector and dest_apicid directly into IO-APIC entry.
>*/
> - irq_data->chip_data = info->ioapic_entry;
> + irq_data->chip_data = info->ioapic.entry;
Not sure if it is required for such a trivial change
2052161460 drivers/iommu/hyperv-iommu.o
>
> After:
>textdata bss dec hex filename
>30441052112052161460 drivers/iommu/hyperv-iommu.o
>
> Signed-off-by: Rikard Falkeborn
Acked-by: Wei Liu
> ---
> drivers/iommu/hyperv-iom
*hvp = __vmalloc(PAGE_SIZE, GFP_KERNEL | __GFP_ZERO);
> }
Acked-by: Wei Liu
___
iommu mailing list
iommu@lists.linux-foundation.org
https://lists.linuxfoundation.org/mailman/listinfo/iommu
On Wed, Apr 08, 2020 at 01:58:59PM +0200, Christoph Hellwig wrote:
> Use the designated helper for allocating executable kernel memory, and
> remove the now unused PAGE_KERNEL_RX define.
>
> Signed-off-by: Christoph Hellwig
Acked
37 matches
Mail list logo
