}
> > }
> >
> > + if (flush && kvm_available_flush_tlb_with_range())
> > + kvm_flush_remote_tlbs_with_address(kvm, gfn_start,
> > + gfn_end - gfn_start + 1);
> > +
>
> ... and this can be just if (flush), because if flush_tlb is true then
> slot_handle_level_range always returns false.
OK. Will update.
--
Best regards
Tianyu Lan
}
> > }
> >
> > + if (flush && kvm_available_flush_tlb_with_range())
> > + kvm_flush_remote_tlbs_with_address(kvm, gfn_start,
> > + gfn_end - gfn_start + 1);
> > +
>
> ... and this can be just if (flush), because if flush_tlb is true then
> slot_handle_level_range always returns false.
OK. Will update.
--
Best regards
Tianyu Lan
On Thu, Oct 11, 2018 at 9:00 PM Vitaly Kuznetsov wrote:
>
> Tianyu Lan writes:
>
> > On Thu, Oct 11, 2018 at 8:18 PM Vitaly Kuznetsov
> > wrote:
> >>
> >> Tianyu Lan writes:
> >>
> >> > On Thu, Oct 11, 2018 at 6:32 PM Vitaly Ku
On Thu, Oct 11, 2018 at 9:00 PM Vitaly Kuznetsov wrote:
>
> Tianyu Lan writes:
>
> > On Thu, Oct 11, 2018 at 8:18 PM Vitaly Kuznetsov
> > wrote:
> >>
> >> Tianyu Lan writes:
> >>
> >> > On Thu, Oct 11, 2018 at 6:32 PM Vitaly Ku
On Thu, Oct 11, 2018 at 8:18 PM Vitaly Kuznetsov wrote:
>
> Tianyu Lan writes:
>
> > On Thu, Oct 11, 2018 at 6:32 PM Vitaly Kuznetsov
> > wrote:
> >>
> >> I'm observing random crashes in multi-vCPU L2 guests running on KVM on
> >> Hyper-V. I bis
On Thu, Oct 11, 2018 at 8:18 PM Vitaly Kuznetsov wrote:
>
> Tianyu Lan writes:
>
> > On Thu, Oct 11, 2018 at 6:32 PM Vitaly Kuznetsov
> > wrote:
> >>
> >> I'm observing random crashes in multi-vCPU L2 guests running on KVM on
> >> Hyper-V. I bis
s the address of
> the
> +* base of EPT PML4 table, strip off EPT configuration information.
> +*/
> ret = hyperv_flush_guest_mapping(
> - to_vmx(kvm_get_vcpu(kvm, 0))->ept_pointer);
> + to_vmx(kvm_get_vcpu(kvm, 0))->ept_pointer &
> PAGE_MASK);
>
> out:
> spin_unlock(_kvm_vmx(kvm)->ept_pointer_lock);
> --
> 2.17.1
>
--
Best regards
Tianyu Lan
s the address of
> the
> +* base of EPT PML4 table, strip off EPT configuration information.
> +*/
> ret = hyperv_flush_guest_mapping(
> - to_vmx(kvm_get_vcpu(kvm, 0))->ept_pointer);
> + to_vmx(kvm_get_vcpu(kvm, 0))->ept_pointer &
> PAGE_MASK);
>
> out:
> spin_unlock(_kvm_vmx(kvm)->ept_pointer_lock);
> --
> 2.17.1
>
--
Best regards
Tianyu Lan
Hi Paolo:
Thanks for your review. Sorry for later response due to holiday.
On Mon, Oct 1, 2018 at 11:26 PM Paolo Bonzini wrote:
>
> On 27/09/2018 05:48, Tianyu Lan wrote:
> > +
> > + if (range && kvm_x86_ops-&g
Hi Paolo:
Thanks for your review. Sorry for later response due to holiday.
On Mon, Oct 1, 2018 at 11:26 PM Paolo Bonzini wrote:
>
> On 27/09/2018 05:48, Tianyu Lan wrote:
> > +
> > + if (range && kvm_x86_ops-&g
is_external_interrupt() is not used now and so remove it.
Signed-off-by: Lan Tianyu
---
arch/x86/kvm/vmx.c | 6 --
1 file changed, 6 deletions(-)
diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index 70e1f916bfc9..619307b3e6bb 100644
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
is_external_interrupt() is not used now and so remove it.
Signed-off-by: Lan Tianyu
---
arch/x86/kvm/vmx.c | 6 --
1 file changed, 6 deletions(-)
diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index 70e1f916bfc9..619307b3e6bb 100644
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
On 9/27/2018 12:16 PM, Michael Kelley (EOSG) wrote:
> From: Tianyu Lan Sent: Wednesday, September 26, 2018 8:50 PM
>>
>> Hyper-V provides HvFlushGuestAddressList() hypercall to flush EPT tlb
>> with specified ranges. This patch is to add the hypercall support.
>>
&
On 9/27/2018 12:16 PM, Michael Kelley (EOSG) wrote:
> From: Tianyu Lan Sent: Wednesday, September 26, 2018 8:50 PM
>>
>> Hyper-V provides HvFlushGuestAddressList() hypercall to flush EPT tlb
>> with specified ranges. This patch is to add the hypercall support.
>>
&
This patch is to add wrapper functions for tlb_remote_flush_with_range
callback.
Signed-off-by: Lan Tianyu
---
Change since V2:
Fix comment in the kvm_flush_remote_tlbs_with_range()
---
arch/x86/kvm/mmu.c | 48
1 file changed, 48
This patch is to add wrapper functions for tlb_remote_flush_with_range
callback.
Signed-off-by: Lan Tianyu
---
Change since V2:
Fix comment in the kvm_flush_remote_tlbs_with_range()
---
arch/x86/kvm/mmu.c | 48
1 file changed, 48
This patch is to flush tlb directly in the kvm_handle_hva_range()
when range flush is available.
Signed-off-by: Lan Tianyu
---
arch/x86/kvm/mmu.c | 7 +++
1 file changed, 7 insertions(+)
diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c
index d10d8423e8d6..877edae0401f 100644
---
This patch is to flush tlb directly in the kvm_handle_hva_range()
when range flush is available.
Signed-off-by: Lan Tianyu
---
arch/x86/kvm/mmu.c | 7 +++
1 file changed, 7 insertions(+)
diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c
index d10d8423e8d6..877edae0401f 100644
---
PV EPT tlb flush function will accept a list of flush ranges and
use struct kvm_mmu_page as the list entry.
Signed-off-by: Lan Tianyu
---
arch/x86/include/asm/kvm_host.h | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h
index
PV EPT tlb flush function will accept a list of flush ranges and
use struct kvm_mmu_page as the list entry.
Signed-off-by: Lan Tianyu
---
arch/x86/include/asm/kvm_host.h | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h
index
This patch is to register tlb_remote_flush_with_range callback with
hv tlb range flush interface.
Signed-off-by: Lan Tianyu
---
Change since v1:
Pass flush range with new hyper-v tlb flush struct rather
than KVM tlb flush struct.
---
arch/x86/kvm/vmx.c | 58
It's necessary to check whether mmu page is last or large page when add
mmu page into flush list. "spte" is needed for such check and so add
spte point in the struct kvm_mmu_page.
Signed-off-by: Lan Tianyu
---
arch/x86/include/asm/kvm_host.h | 1 +
arch/x86/kvm/mmu.c | 5 +
This patch is to register tlb_remote_flush_with_range callback with
hv tlb range flush interface.
Signed-off-by: Lan Tianyu
---
Change since v1:
Pass flush range with new hyper-v tlb flush struct rather
than KVM tlb flush struct.
---
arch/x86/kvm/vmx.c | 58
It's necessary to check whether mmu page is last or large page when add
mmu page into flush list. "spte" is needed for such check and so add
spte point in the struct kvm_mmu_page.
Signed-off-by: Lan Tianyu
---
arch/x86/include/asm/kvm_host.h | 1 +
arch/x86/kvm/mmu.c | 5 +
This patch is to use range list flush function in the
mmu_sync_children(), kvm_mmu_commit_zap_page() and
FNAME(sync_page)().
Signed-off-by: Lan Tianyu
---
arch/x86/kvm/mmu.c | 26 +++---
arch/x86/kvm/paging_tmpl.h | 5 -
2 files changed, 27 insertions(+), 4
This patch is to trace log in the hyperv_nested_flush_
guest_mapping_range().
Signed-off-by: Lan Tianyu
---
arch/x86/hyperv/nested.c| 1 +
arch/x86/include/asm/trace/hyperv.h | 14 ++
2 files changed, 15 insertions(+)
diff --git a/arch/x86/hyperv/nested.c
This patch is to trace log in the hyperv_nested_flush_
guest_mapping_range().
Signed-off-by: Lan Tianyu
---
arch/x86/hyperv/nested.c| 1 +
arch/x86/include/asm/trace/hyperv.h | 14 ++
2 files changed, 15 insertions(+)
diff --git a/arch/x86/hyperv/nested.c
This patch is to use range list flush function in the
mmu_sync_children(), kvm_mmu_commit_zap_page() and
FNAME(sync_page)().
Signed-off-by: Lan Tianyu
---
arch/x86/kvm/mmu.c | 26 +++---
arch/x86/kvm/paging_tmpl.h | 5 -
2 files changed, 27 insertions(+), 4
If ept table pointers are mismatched, flushing tlb for each vcpus via
hv flush interface still helps to reduce vmexits which are triggered
by IPI and INEPT emulation.
Signed-off-by: Lan Tianyu
---
arch/x86/kvm/vmx.c | 15 ---
1 file changed, 8 insertions(+), 7 deletions(-)
diff
If ept table pointers are mismatched, flushing tlb for each vcpus via
hv flush interface still helps to reduce vmexits which are triggered
by IPI and INEPT emulation.
Signed-off-by: Lan Tianyu
---
arch/x86/kvm/vmx.c | 15 ---
1 file changed, 8 insertions(+), 7 deletions(-)
diff
Hyper-V provides HvFlushGuestAddressList() hypercall to flush EPT tlb
with specified ranges. This patch is to add the hypercall support.
Signed-off-by: Lan Tianyu
---
Change since v2:
Fix some coding style issues
- Move HV_MAX_FLUSH_PAGES and HV_MAX_FLUSH_REP_COUNT to
This patch is to replace kvm_flush_remote_tlbs() with kvm_flush_
remote_tlbs_with_address() in some functions without logic change.
Signed-off-by: Lan Tianyu
---
arch/x86/kvm/mmu.c | 33 ++---
arch/x86/kvm/paging_tmpl.h | 3 ++-
2 files changed, 24
Hyper-V provides HvFlushGuestAddressList() hypercall to flush EPT tlb
with specified ranges. This patch is to add the hypercall support.
Signed-off-by: Lan Tianyu
---
Change since v2:
Fix some coding style issues
- Move HV_MAX_FLUSH_PAGES and HV_MAX_FLUSH_REP_COUNT to
This patch is to replace kvm_flush_remote_tlbs() with kvm_flush_
remote_tlbs_with_address() in some functions without logic change.
Signed-off-by: Lan Tianyu
---
arch/x86/kvm/mmu.c | 33 ++---
arch/x86/kvm/paging_tmpl.h | 3 ++-
2 files changed, 24
Add flush range call back in the kvm_x86_ops and platform can use it
to register its associated function. The parameter "kvm_tlb_range"
accepts a single range and flush list which contains a list of ranges.
Signed-off-by: Lan Tianyu
---
Change since v1:
Change "end_gfn" to "pages" to
Add flush range call back in the kvm_x86_ops and platform can use it
to register its associated function. The parameter "kvm_tlb_range"
accepts a single range and flush list which contains a list of ranges.
Signed-off-by: Lan Tianyu
---
Change since v1:
Change "end_gfn" to "pages" to
Originally, flush tlb is done by slot_handle_level_range(). This patch
is to flush tlb directly in the kvm_zap_gfn_range() when range
flush is available.
Signed-off-by: Lan Tianyu
---
arch/x86/kvm/mmu.c | 16 +---
1 file changed, 13 insertions(+), 3 deletions(-)
diff --git
For nested memory virtualization, Hyper-v doesn't set write-protect
L1 hypervisor EPT page directory and page table node to track changes
while it relies on guest to tell it changes via HvFlushGuestAddressLlist
hypercall. HvFlushGuestAddressLlist hypercall provides a way to flush
EPT page table
kvm_mmu_zap_collapsible_spte() returns flush request to the
slot_handle_leaf() and the latter does flush on demand. When
range flush is available, make kvm_mmu_zap_collapsible_spte()
to flush tlb with range directly to avoid returning range back
to slot_handle_leaf().
Signed-off-by: Lan Tianyu
Originally, flush tlb is done by slot_handle_level_range(). This patch
is to flush tlb directly in the kvm_zap_gfn_range() when range
flush is available.
Signed-off-by: Lan Tianyu
---
arch/x86/kvm/mmu.c | 16 +---
1 file changed, 13 insertions(+), 3 deletions(-)
diff --git
For nested memory virtualization, Hyper-v doesn't set write-protect
L1 hypervisor EPT page directory and page table node to track changes
while it relies on guest to tell it changes via HvFlushGuestAddressLlist
hypercall. HvFlushGuestAddressLlist hypercall provides a way to flush
EPT page table
kvm_mmu_zap_collapsible_spte() returns flush request to the
slot_handle_leaf() and the latter does flush on demand. When
range flush is available, make kvm_mmu_zap_collapsible_spte()
to flush tlb with range directly to avoid returning range back
to slot_handle_leaf().
Signed-off-by: Lan Tianyu
On 9/20/2018 12:08 AM, Michael Kelley (EOSG) wrote:
> From: Tianyu Lan Sent: Monday, September 17, 2018 8:19 PM
>> +
>> +if (ret && kvm_available_flush_tlb_with_range()) {
>> +kvm_flush
On 9/20/2018 12:08 AM, Michael Kelley (EOSG) wrote:
> From: Tianyu Lan Sent: Monday, September 17, 2018 8:19 PM
>> +
>> +if (ret && kvm_available_flush_tlb_with_range()) {
>> +kvm_flush
PV EPT tlb flush function will accept a list of flush ranges and
use struct kvm_mmu_page as the list entry.
Signed-off-by: Lan Tianyu
---
arch/x86/include/asm/kvm_host.h | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h
index
This patch is to use range list flush function in the
mmu_sync_children(), kvm_mmu_commit_zap_page() and
FNAME(sync_page)().
Signed-off-by: Lan Tianyu
---
arch/x86/kvm/mmu.c | 26 +++---
arch/x86/kvm/paging_tmpl.h | 5 -
2 files changed, 27 insertions(+), 4
This patch is to use range list flush function in the
mmu_sync_children(), kvm_mmu_commit_zap_page() and
FNAME(sync_page)().
Signed-off-by: Lan Tianyu
---
arch/x86/kvm/mmu.c | 26 +++---
arch/x86/kvm/paging_tmpl.h | 5 -
2 files changed, 27 insertions(+), 4
PV EPT tlb flush function will accept a list of flush ranges and
use struct kvm_mmu_page as the list entry.
Signed-off-by: Lan Tianyu
---
arch/x86/include/asm/kvm_host.h | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h
index
If ept table pointers are mismatched, flushing tlb for each vcpus via
hv flush interface still helps to reduce vmexits which are triggered
by IPI and INEPT emulation.
Signed-off-by: Lan Tianyu
---
arch/x86/kvm/vmx.c | 15 ---
1 file changed, 8 insertions(+), 7 deletions(-)
diff
It's necessary to check whether mmu page is last or large page when add
mmu page into flush list. "spte" is needed for such check and so add
spte point in the struct kvm_mmu_page.
Signed-off-by: Lan Tianyu
---
arch/x86/include/asm/kvm_host.h | 1 +
arch/x86/kvm/mmu.c | 5 +
This patch is to register tlb_remote_flush_with_range callback with
hv tlb range flush interface.
Signed-off-by: Lan Tianyu
---
Change since v1:
Pass flush range with new hyper-v tlb flush struct rather
than KVM tlb flush struct.
---
arch/x86/kvm/vmx.c | 58
If ept table pointers are mismatched, flushing tlb for each vcpus via
hv flush interface still helps to reduce vmexits which are triggered
by IPI and INEPT emulation.
Signed-off-by: Lan Tianyu
---
arch/x86/kvm/vmx.c | 15 ---
1 file changed, 8 insertions(+), 7 deletions(-)
diff
It's necessary to check whether mmu page is last or large page when add
mmu page into flush list. "spte" is needed for such check and so add
spte point in the struct kvm_mmu_page.
Signed-off-by: Lan Tianyu
---
arch/x86/include/asm/kvm_host.h | 1 +
arch/x86/kvm/mmu.c | 5 +
This patch is to register tlb_remote_flush_with_range callback with
hv tlb range flush interface.
Signed-off-by: Lan Tianyu
---
Change since v1:
Pass flush range with new hyper-v tlb flush struct rather
than KVM tlb flush struct.
---
arch/x86/kvm/vmx.c | 58
This patch is to trace log in the hyperv_nested_flush_
guest_mapping_range().
Signed-off-by: Lan Tianyu
---
arch/x86/hyperv/nested.c| 1 +
arch/x86/include/asm/trace/hyperv.h | 14 ++
2 files changed, 15 insertions(+)
diff --git a/arch/x86/hyperv/nested.c
This patch is to trace log in the hyperv_nested_flush_
guest_mapping_range().
Signed-off-by: Lan Tianyu
---
arch/x86/hyperv/nested.c| 1 +
arch/x86/include/asm/trace/hyperv.h | 14 ++
2 files changed, 15 insertions(+)
diff --git a/arch/x86/hyperv/nested.c
This patch is to flush tlb directly in the kvm_handle_hva_range()
when range flush is available.
Signed-off-by: Lan Tianyu
---
arch/x86/kvm/mmu.c | 7 +++
1 file changed, 7 insertions(+)
diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c
index 822e170881a4..dfd2a0710417 100644
---
Hyper-V provides HvFlushGuestAddressList() hypercall to flush EPT tlb
with specified ranges. This patch is to add the hypercall support.
Signed-off-by: Lan Tianyu
---
Change since v1:
Add hyperv tlb flush struct to avoid use kvm tlb flush struct
in the hyperv file.
---
This patch is to flush tlb directly in the kvm_handle_hva_range()
when range flush is available.
Signed-off-by: Lan Tianyu
---
arch/x86/kvm/mmu.c | 7 +++
1 file changed, 7 insertions(+)
diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c
index 822e170881a4..dfd2a0710417 100644
---
Hyper-V provides HvFlushGuestAddressList() hypercall to flush EPT tlb
with specified ranges. This patch is to add the hypercall support.
Signed-off-by: Lan Tianyu
---
Change since v1:
Add hyperv tlb flush struct to avoid use kvm tlb flush struct
in the hyperv file.
---
kvm_mmu_zap_collapsible_spte() returns flush request to the
slot_handle_leaf() and the latter does flush on demand. When
range flush is available, make kvm_mmu_zap_collapsible_spte()
to flush tlb with range directly to avoid returning range back
to slot_handle_leaf().
Signed-off-by: Lan Tianyu
kvm_mmu_zap_collapsible_spte() returns flush request to the
slot_handle_leaf() and the latter does flush on demand. When
range flush is available, make kvm_mmu_zap_collapsible_spte()
to flush tlb with range directly to avoid returning range back
to slot_handle_leaf().
Signed-off-by: Lan Tianyu
Add flush range call back in the kvm_x86_ops and platform can use it
to register its associated function. The parameter "kvm_tlb_range"
accepts a single range and flush list which contains a list of ranges.
Signed-off-by: Lan Tianyu
---
Change since v1:
Change "end_gfn" to "pages" to
This patch is to add wrapper functions for tlb_remote_flush_with_range
callback.
Signed-off-by: Lan Tianyu
---
arch/x86/kvm/mmu.c | 48
1 file changed, 48 insertions(+)
diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c
index
Originally, flush tlb is done by slot_handle_level_range(). This patch
is to flush tlb directly in the kvm_zap_gfn_range() when range
flush is available.
Signed-off-by: Lan Tianyu
---
arch/x86/kvm/mmu.c | 16 +---
1 file changed, 13 insertions(+), 3 deletions(-)
diff --git
For nested memory virtualization, Hyper-v doesn't set write-protect
L1 hypervisor EPT page directory and page table node to track changes
while it relies on guest to tell it changes via HvFlushGuestAddressLlist
hypercall. HvFlushGuestAddressLlist hypercall provides a way to flush
EPT page table
This patch is to replace kvm_flush_remote_tlbs() with kvm_flush_
remote_tlbs_with_address() in some functions without logic change.
Signed-off-by: Lan Tianyu
---
arch/x86/kvm/mmu.c | 33 ++---
arch/x86/kvm/paging_tmpl.h | 3 ++-
2 files changed, 24
Add flush range call back in the kvm_x86_ops and platform can use it
to register its associated function. The parameter "kvm_tlb_range"
accepts a single range and flush list which contains a list of ranges.
Signed-off-by: Lan Tianyu
---
Change since v1:
Change "end_gfn" to "pages" to
This patch is to add wrapper functions for tlb_remote_flush_with_range
callback.
Signed-off-by: Lan Tianyu
---
arch/x86/kvm/mmu.c | 48
1 file changed, 48 insertions(+)
diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c
index
Originally, flush tlb is done by slot_handle_level_range(). This patch
is to flush tlb directly in the kvm_zap_gfn_range() when range
flush is available.
Signed-off-by: Lan Tianyu
---
arch/x86/kvm/mmu.c | 16 +---
1 file changed, 13 insertions(+), 3 deletions(-)
diff --git
For nested memory virtualization, Hyper-v doesn't set write-protect
L1 hypervisor EPT page directory and page table node to track changes
while it relies on guest to tell it changes via HvFlushGuestAddressLlist
hypercall. HvFlushGuestAddressLlist hypercall provides a way to flush
EPT page table
This patch is to replace kvm_flush_remote_tlbs() with kvm_flush_
remote_tlbs_with_address() in some functions without logic change.
Signed-off-by: Lan Tianyu
---
arch/x86/kvm/mmu.c | 33 ++---
arch/x86/kvm/paging_tmpl.h | 3 ++-
2 files changed, 24
Hi Sean:
Thanks for your review.
On 9/10/2018 10:21 PM, Sean Christopherson wrote:
> On Mon, 2018-09-10 at 08:38 +0000, Tianyu Lan wrote:
>> Add flush range call back in the kvm_x86_ops and platform can use it
>> to register its associated function. The parameter
Hi Sean:
Thanks for your review.
On 9/10/2018 10:21 PM, Sean Christopherson wrote:
> On Mon, 2018-09-10 at 08:38 +0000, Tianyu Lan wrote:
>> Add flush range call back in the kvm_x86_ops and platform can use it
>> to register its associated function. The parameter
Hi Michael:
Thanks for your review.
On 9/12/2018 8:22 AM, Michael Kelley (EOSG) wrote:
> From: Tianyu Lan Sent: Monday, September 10, 2018 1:39 AM
>> +
>> +int hyperv_flush_guest_mapping_range(u64 as, struct kvm_tlb_range *range)
>
> I'm really concerned about
Hi Michael:
Thanks for your review.
On 9/12/2018 8:22 AM, Michael Kelley (EOSG) wrote:
> From: Tianyu Lan Sent: Monday, September 10, 2018 1:39 AM
>> +
>> +int hyperv_flush_guest_mapping_range(u64 as, struct kvm_tlb_range *range)
>
> I'm really concerned about
This patch is to trace log in the hyperv_nested_flush_
guest_mapping_range().
Signed-off-by: Lan Tianyu
---
arch/x86/hyperv/nested.c| 1 +
arch/x86/include/asm/trace/hyperv.h | 14 ++
2 files changed, 15 insertions(+)
diff --git a/arch/x86/hyperv/nested.c
This patch is to trace log in the hyperv_nested_flush_
guest_mapping_range().
Signed-off-by: Lan Tianyu
---
arch/x86/hyperv/nested.c| 1 +
arch/x86/include/asm/trace/hyperv.h | 14 ++
2 files changed, 15 insertions(+)
diff --git a/arch/x86/hyperv/nested.c
If ept table pointers are mismatched, flushing tlb for each vcpus via
hv flush interface still helps to reduce vmexits which are triggered
by IPI and INEPT emulation.
Signed-off-by: Lan Tianyu
---
arch/x86/kvm/vmx.c | 15 ---
1 file changed, 8 insertions(+), 7 deletions(-)
diff
This patch is to register tlb_remote_flush_with_range callback with
hv tlb range flush interface.
Signed-off-by: Lan Tianyu
---
arch/x86/kvm/vmx.c | 34 +++---
1 file changed, 27 insertions(+), 7 deletions(-)
diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
Hyper-V provides HvFlushGuestAddressList() hypercall to flush EPT tlb
with specified ranges. This patch is to add the hypercall support.
Signed-off-by: Lan Tianyu
---
arch/x86/hyperv/nested.c | 110 +
arch/x86/include/asm/hyperv-tlfs.h | 17 ++
It's necessary to check whether mmu page is last or large page when add
mmu page into flush list. "spte" is needed for such check and so add
spte point in the struct kvm_mmu_page.
Signed-off-by: Lan Tianyu
---
arch/x86/include/asm/kvm_host.h | 1 +
arch/x86/kvm/mmu.c | 5 +
This patch is to register tlb_remote_flush_with_range callback with
hv tlb range flush interface.
Signed-off-by: Lan Tianyu
---
arch/x86/kvm/vmx.c | 34 +++---
1 file changed, 27 insertions(+), 7 deletions(-)
diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
Hyper-V provides HvFlushGuestAddressList() hypercall to flush EPT tlb
with specified ranges. This patch is to add the hypercall support.
Signed-off-by: Lan Tianyu
---
arch/x86/hyperv/nested.c | 110 +
arch/x86/include/asm/hyperv-tlfs.h | 17 ++
If ept table pointers are mismatched, flushing tlb for each vcpus via
hv flush interface still helps to reduce vmexits which are triggered
by IPI and INEPT emulation.
Signed-off-by: Lan Tianyu
---
arch/x86/kvm/vmx.c | 15 ---
1 file changed, 8 insertions(+), 7 deletions(-)
diff
It's necessary to check whether mmu page is last or large page when add
mmu page into flush list. "spte" is needed for such check and so add
spte point in the struct kvm_mmu_page.
Signed-off-by: Lan Tianyu
---
arch/x86/include/asm/kvm_host.h | 1 +
arch/x86/kvm/mmu.c | 5 +
This patch is to use range list flush function in the
mmu_sync_children(), kvm_mmu_commit_zap_page() and
FNAME(sync_page)().
Signed-off-by: Lan Tianyu
---
arch/x86/kvm/mmu.c | 26 +++---
arch/x86/kvm/paging_tmpl.h | 5 -
2 files changed, 27 insertions(+), 4
PV EPT tlb flush function will accept a list of flush ranges and
use struct kvm_mmu_page as the list entry.
Signed-off-by: Lan Tianyu
---
arch/x86/include/asm/kvm_host.h | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h
index
kvm_mmu_zap_collapsible_spte() returns flush request to the
slot_handle_leaf() and the latter does flush on demand. When
range flush is available, make kvm_mmu_zap_collapsible_spte()
to flush tlb with range directly to avoid returning range back
to slot_handle_leaf().
Signed-off-by: Lan Tianyu
This patch is to use range list flush function in the
mmu_sync_children(), kvm_mmu_commit_zap_page() and
FNAME(sync_page)().
Signed-off-by: Lan Tianyu
---
arch/x86/kvm/mmu.c | 26 +++---
arch/x86/kvm/paging_tmpl.h | 5 -
2 files changed, 27 insertions(+), 4
PV EPT tlb flush function will accept a list of flush ranges and
use struct kvm_mmu_page as the list entry.
Signed-off-by: Lan Tianyu
---
arch/x86/include/asm/kvm_host.h | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h
index
kvm_mmu_zap_collapsible_spte() returns flush request to the
slot_handle_leaf() and the latter does flush on demand. When
range flush is available, make kvm_mmu_zap_collapsible_spte()
to flush tlb with range directly to avoid returning range back
to slot_handle_leaf().
Signed-off-by: Lan Tianyu
Originally, flush tlb is done by slot_handle_level_range(). This patch
is to flush tlb directly in the kvm_zap_gfn_range() when range
flush is available.
Signed-off-by: Lan Tianyu
---
arch/x86/kvm/mmu.c | 15 ---
1 file changed, 12 insertions(+), 3 deletions(-)
diff --git
Originally, flush tlb is done by slot_handle_level_range(). This patch
is to flush tlb directly in the kvm_zap_gfn_range() when range
flush is available.
Signed-off-by: Lan Tianyu
---
arch/x86/kvm/mmu.c | 15 ---
1 file changed, 12 insertions(+), 3 deletions(-)
diff --git
This patch is to flush tlb directly in the kvm_handle_hva_range()
when range flush is available.
Signed-off-by: Lan Tianyu
---
arch/x86/kvm/mmu.c | 6 ++
1 file changed, 6 insertions(+)
diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c
index 0ee310bad2c6..cadb6a0b5247 100644
---
This patch is to flush tlb directly in the kvm_handle_hva_range()
when range flush is available.
Signed-off-by: Lan Tianyu
---
arch/x86/kvm/mmu.c | 6 ++
1 file changed, 6 insertions(+)
diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c
index 0ee310bad2c6..cadb6a0b5247 100644
---
This patch is to replace kvm_flush_remote_tlbs() with kvm_flush_
remote_tlbs_with_address() in some functions without logic change.
Signed-off-by: Lan Tianyu
---
arch/x86/kvm/mmu.c | 34 +++---
arch/x86/kvm/paging_tmpl.h | 9 +++--
2 files changed, 30
This patch is to replace kvm_flush_remote_tlbs() with kvm_flush_
remote_tlbs_with_address() in some functions without logic change.
Signed-off-by: Lan Tianyu
---
arch/x86/kvm/mmu.c | 34 +++---
arch/x86/kvm/paging_tmpl.h | 9 +++--
2 files changed, 30
This patch is to add wrapper functions for tlb_remote_flush_with_range
callback.
Signed-off-by: Lan Tianyu
---
arch/x86/kvm/mmu.c | 48
1 file changed, 48 insertions(+)
diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c
index
For nested memory virtualization, Hyper-v doesn't set write-protect
L1 hypervisor EPT page directory and page table node to track changes
while it relies on guest to tell it changes via HvFlushGuestAddressLlist
hypercall. HvFlushGuestAddressLlist hypercall provides a way to flush
EPT page table
101 - 200 of 368 matches
Mail list logo
