From: Lan Tianyu
This patch is to add last_level in the struct kvm_mmu_page. When build
flush tlb range list, last_level will be used to identify whehter the
page should be added into list.
Signed-off-by: Lan Tianyu
---
arch/x86/include/asm/kvm_host.h | 1 +
arch/x86/kvm/mmu.c |
From: Lan Tianyu
This patch is to flush tlb via flush list function. Put
page into flush list when return value of set_spte()
includes flag SET_SPTE_NEED_REMOTE_TLB_FLUSH. kvm_flush_remote_
tlbs_with_list() checks whether the flush list is empty
or not. It also checks whether range tlb flush is
From: Lan Tianyu
This patch is to use tlb range flush to flush memslot's in the
kvm_vm_ioctl_get/clear_dirty_log() instead of flushing tlbs
of entire ept page table when range flush is available.
Signed-off-by: Lan Tianyu
---
arch/x86/kvm/mmu.c | 8 +---
arch/x86/kvm/mmu.h | 7 +++
From: Lan Tianyu
This patch is to flush tlb directly in the kvm_mmu_slot_gfn_write_protect()
when range flush is available.
Signed-off-by: Lan Tianyu
---
arch/x86/kvm/mmu.c | 5 +
1 file changed, 5 insertions(+)
diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c
index
From: Lan Tianyu
This patch is to add flush parameter for kvm_aga_hva() and move tlb
flush from kvm_mmu_notifier_clear_flush_young() to kvm_age_hva().
kvm_age_hva() can check whether tlb flush is necessary when
return value young is more than 0. Flush tlb if both conditions
are met.
From: Lan Tianyu
This patch is to introduce tlb flush with range list interface and use
struct kvm_mmu_page as list entry. Use flush list function in the
kvm_mmu_commit_zap_page().
Signed-off-by: Lan Tianyu
---
arch/x86/kvm/mmu.c | 25 -
1 file changed, 24
From: Lan Tianyu
Populate ranges on the flush list into struct hv_guest_mapping_flush_list
when flush list is available in the struct kvm_tlb_range.
Signed-off-by: Lan Tianyu
---
Change since v1:
Make flush list as a "hlist" instead of a "list" in order to
keep struct
From: Lan Tianyu
Add parameter offset to specify start position to add flush ranges in
guest address list of struct hv_guest_mapping_flush_list.
Signed-off-by: Lan Tianyu
---
arch/x86/hyperv/nested.c| 4 ++--
arch/x86/include/asm/mshyperv.h | 2 +-
arch/x86/kvm/vmx/vmx.c | 2
From: Lan Tianyu
This patchset is to introduce hv ept tlb range list flush function
support in the KVM MMU component. Flushing ept tlbs of several address
range can be done via single hypercall and new list flush function is
used in the kvm_mmu_commit_zap_page() and FNAME(sync_page). This
On Fri, Feb 01, 2019 at 03:30:58PM +, Julien Grall wrote:
> Hi Julien,
>
> On 07/01/2019 15:06, Julien Thierry wrote:
> > vgic_irq->irq_lock must always be taken with interrupts disabled as
> > it is used in interrupt context.
>
> I am a bit confused with the reason here. The code mention
Hi Julia,
On 01/02/2019 17:36, Julia Cartwright wrote:
On Fri, Feb 01, 2019 at 03:30:58PM +, Julien Grall wrote:
Hi Julien,
On 07/01/2019 15:06, Julien Thierry wrote:
vgic_irq->irq_lock must always be taken with interrupts disabled as
it is used in interrupt context.
I am a bit
Hi Julien,
On 07/01/2019 15:06, Julien Thierry wrote:
vgic_irq->irq_lock must always be taken with interrupts disabled as
it is used in interrupt context.
I am a bit confused with the reason here. The code mention that ap_list_lock
could be taken from the timer interrupt handler interrupt. I
From: Lan Tianyu
This patchset is to introduce hv ept tlb range list flush function
support in the KVM MMU component. Flushing ept tlbs of several address
range can be done via single hypercall and new list flush function is
used in the kvm_mmu_commit_zap_page() and FNAME(sync_page). This
On Tue, Jan 29, 2019 at 06:48:54PM +, James Morse wrote:
> ghes_read_estatus() checks various lengths in the top-level header to
> ensure the CPER records to be read aren't obviously corrupt.
>
> Take the opportunity to make this more user-friendly, printing a
> (ratelimited) message about
On Tue, Jan 29, 2019 at 06:48:45PM +, James Morse wrote:
> +static int ghes_in_nmi_spool_from_list(struct list_head *rcu_list)
> +{
> + int err, ret = -ENOENT;
> + struct ghes *ghes;
> +
> + rcu_read_lock();
> + list_for_each_entry_rcu(ghes, rcu_list, list) {
> +
On 24/01/2019 16:32, James Morse wrote:
> On systems with VHE the kernel and KVM's world-switch code run at the
> same exception level. Code that is only used on a VHE system does not
> need to be annotated as __hyp_text as it can reside anywhere in the
> kernel text.
>
> __hyp_text was also used
On Tue, Jan 29, 2019 at 06:48:40PM +, James Morse wrote:
> ghes.c has a memory pool it uses for the estatus cache and the estatus
> queue. The cache is initialised when registering the platform driver.
> For the queue, an NMI-like notification has to grow/shrink the pool
> as it is registered
"make -s" suppresses normal output, just shows warnings and errors.
But since we explicitly override the make output with our fancy concise
version, we miss out on this feature.
Do as the kernel does and explicitly suppress every normal output when -s
is given. This helps to spot warnings that
The DT spec describes the stdout-path property in the /chosen node to
contain the DT path for a default device usable for outputting characters.
The Linux kernel uses this for earlycon (without further parameters),
other DT users might rely on this as well.
Add a stdout-path property pointing to
At the moment kvmtool always tries to instantiate a virtual GICv2 for
the guest, and fails with some scary error message if that doesn't work.
The user has then to manually specify "--irqchip=gicv3", which is not
really obvious.
With the advent of more GICv3-only machines, let's try to be more
On every build we report the kvmtool "version" number, which isn't
meaningful at all anymore.
Remove the line from the KVMTOOLS-VERSION-GEN script to drop a
pointless message.
Signed-off-by: Andre Przywara
---
util/KVMTOOLS-VERSION-GEN | 1 -
1 file changed, 1 deletion(-)
diff --git
As I found myself using kvmtool more often in the last weeks, I got more
and more annoyed by some smaller "ticks" that kvmtool shows.
So this is an attempt to post various smaller fixes I gathered up over
the years, but never found worth enough to send out.
Version 2 drops the two patches that
Hi Christoffer,
On 31/01/2019 08:04, Christoffer Dall wrote:
> On Thu, Jan 24, 2019 at 04:32:56PM +, James Morse wrote:
>> The hyp-stub is loaded by the kernel's early startup code at EL2
>> during boot, before KVM takes ownership later. The hyp-stub's
>> text is part of the regular kernel
When kvm-unit-tests is configured with --vmm=kvmtool, use the address for
the ns16550a UART that kvmtool emulates. When the virtual machine manager
is QEMU, use the address for the pl011 UART, as before.
Signed-off-by: Alexandru Elisei
---
configure| 10 +++---
lib/arm/io.c | 27
On arm and arm64, kvm-unit-tests uses the QEMU chr-testdev device to shut
down the virtual machine at the end of a test. The function
psci_system_off() provides another mechanism for terminating the virtual
machine.
chr-testdev is implemented on top of virtio console. If the virtual machine
A new function, psci_system_off(), is added which implements the PSCI
SYSTEM_OFF function. A call causes the hypervisor to terminate the virtual
machine.
We take this opportunity to rename psci_sys_reset() to psci_system_reset()
to match the name of the PSCI function SYSTEM_RESET that it
Generate lib/config.h when configuring kvm-unit-tests. The file is empty
for all architectures except for arm and arm64, where it is used to store
the UART base address. This removes the hardcoded address from lib/arm/io.c
and provides a mechanism for using different UART addresses in the future.
Add configuration option --vmm to specify the virtual machine manager.
Valid choices are 'qemu' and 'kvmtool', the default being 'qemu'. This
option is only available for the arm and arm64 architectures and does
nothing for now.
Signed-off-by: Alexandru Elisei
---
configure | 10 ++
1
kvm-unit-tests is designed to be run with QEMU as the virtual machine
monitor. It relies on devices emulated by QEMU (like isa-debug-exit or
testdev) and it makes certain assumptions based on the implicit QEMU
virtual environment configuration (like the serial base address).
kvmtool [1] is a
On Fri, 1 Feb 2019 06:26:58 +
Will Deacon wrote:
Hi,
> On Thu, Jan 31, 2019 at 02:57:11PM +, Andre Przywara wrote:
> > On Wed, 30 Jan 2019 18:20:19 +
> > Will Deacon wrote:
> > > On Fri, Jan 25, 2019 at 06:07:57PM +, Andre Przywara wrote:
> > > > The DT spec describes the
On Thu, Jan 31, 2019 at 06:53:06PM +, James Morse wrote:
> Hey Christoffer,
>
> On 31/01/2019 08:08, Christoffer Dall wrote:
> > On Thu, Jan 24, 2019 at 04:32:54PM +, James Morse wrote:
> >> On systems with VHE the kernel and KVM's world-switch code run at the
> >> same exception level.
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