race where the process that's
exiting drops the last reference on the mm (with mmput) while the other
increases it (with mmget). By only increasing when the reference isn't
0 to begin with, we prevent this from happening.
Signed-off-by: Filippo Sironi
---
kernel/fork.c | 4 +---
1
On 2/10/21 8:37 AM, Christoph Hellwig wrote:
On Wed, Feb 10, 2021 at 01:39:42AM +0100, Filippo Sironi wrote:
Amazon NVMe controllers do not support 64-bit DMA addresses; they are
limited to 48-bit DMA addresses. Let's add a quirk to ensure that we
make use of 48-bit DMA addresses to
local instance storage (0xcd00, 0xcd01,
0xcd02).
Signed-off-by: Filippo Sironi
---
drivers/nvme/host/nvme.h | 5 +
drivers/nvme/host/pci.c | 17 -
2 files changed, 21 insertions(+), 1 deletion(-)
diff --git a/drivers/nvme/host/nvme.h b/drivers/nvme/host/nvme.h
index 88a6b97
On 2/3/21 12:15 PM, Christoph Hellwig wrote:
On Wed, Feb 03, 2021 at 12:12:31PM +0100, Filippo Sironi wrote:
I don't disagree on the first part of your sentence, this is a big
oversight.
But it is not what your commit log suggests.
I can definitely rephrase the commit.
On the other
On 2/3/21 10:51 AM, Christoph Hellwig wrote:
On Wed, Feb 03, 2021 at 10:43:38AM +0100, Filippo Sironi wrote:
Certain NVMe controllers don't support 64-bit DMA addresses. Instead,
they are limited to 48-bit DMA addresses. Let's add a quirk to use them
properly.
WTF? This is su
Certain NVMe controllers don't support 64-bit DMA addresses. Instead,
they are limited to 48-bit DMA addresses. Let's add a quirk to use them
properly.
Signed-off-by: Filippo Sironi
---
drivers/nvme/host/nvme.h | 5 +
drivers/nvme/host/pci.c | 12 +++-
2 files c
injection(vcpu) &&
kvm_cpu_accept_dm_intr(vcpu);
}
--
2.28.0
Reviewed-by: Filippo Sironi
Amazon Development Center Germany GmbH
Krausenstr. 38
10117 Berlin
Geschaeftsfuehrung: Christian Schlaeger, Jonathan Weiss
Eingetragen am Amtsgericht Charlottenburg unter HRB 149173 B
Sitz: Berlin
Ust-ID: DE 289 237 879
kvm_apic_has_interrupt(struct kvm_vcpu *vcpu)
struct kvm_lapic *apic = vcpu->arch.apic;
u32 ppr;
- if (!kvm_apic_hw_enabled(apic))
+ if (!kvm_apic_present(vcpu))
return -1;
__apic_update_ppr(apic, &ppr);
--
2.28.0
Reviewed-by:
On x86, we report the UUID in DMI System Information (i.e., DMI Type 1)
as VM UUID.
Signed-off-by: Filippo Sironi
---
arch/x86/kernel/kvm.c | 7 +++
1 file changed, 7 insertions(+)
diff --git a/arch/x86/kernel/kvm.c b/arch/x86/kernel/kvm.c
index 5c93a65ee1e5..441cab08a09d 100644
--- a/arch
virtual
machine, since it's also available when running on Xen HVM and on Xen PV
and, on top of that doesn't require root privileges by default.
Let's create arch-specific hooks so that different architectures can
provide different implementations.
Signed-off-by: Filippo Sironi
---
v2:
r work can be done by consolidating the creation of the basic
/sys/hypervisor across hypervisors.
Filippo Sironi (2):
KVM: Start populating /sys/hypervisor with KVM entries
KVM: x86: Implement the arch-specific hook to report the VM UUID
recognize a virtual
machine, since it's also available when running on Xen HVM and on Xen PV
and, on top of that doesn't require root privileges by default.
Signed-off-by: Filippo Sironi
---
drivers/Kconfig | 2 ++
drivers/Makefile | 2 ++
dri
Commit-ID: 8da38ebaad23fe1b0c4a205438676f6356607cfc
Gitweb: https://git.kernel.org/tip/8da38ebaad23fe1b0c4a205438676f6356607cfc
Author: Filippo Sironi
AuthorDate: Tue, 31 Jul 2018 17:29:30 +0200
Committer: Thomas Gleixner
CommitDate: Sun, 2 Sep 2018 14:10:54 +0200
x86/microcode
... on late microcode loading when handling a CPU that's already been
updated and a CPU that's yet to be updated.
Signed-off-by: Filippo Sironi
---
arch/x86/kernel/cpu/microcode/amd.c | 15 +--
arch/x86/kernel/cpu/microcode/intel.c | 10 ++
2 files changed, 15
pu_info instead, which is updated on late microcode loading.
Fixes: fa94d0c6e0f3 ("x86/MCE: Save microcode revision in machine check
records")
Signed-off-by: Filippo Sironi
Cc: Tony Luck
Cc: Borislav Petkov
Cc: linux-e...@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
---
arch/x86/ke
omain
already exists.
Signed-off-by: Filippo Sironi
Cc: Alex Williamson
Cc: k...@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
---
drivers/vfio/vfio_iommu_type1.c | 32 ++--
1 file changed, 14 insertions(+), 18 deletions(-)
diff --git a/drivers/vfio/vfio_iommu_type
off-by: Filippo Sironi
---
kernel/sched/fair.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index 4037e19bbca2..04b6f847a241 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -7517,7 +7517,7 @@ static unsigned long scale_rt_ca
having userspace specifying the microcode version, rather
than having the kernel picking it, is to ensure consistency for live-migrated
instances; we don't want them to see a microcode version increase without a
reset.
Signed-off-by: Filippo Sironi
---
arch/x86/kvm/x86.c
... and read it from there when emulating accesses to
MSR_IA32_UCODE_REV. This is the first step to allow userspace to define
what's the microcode version that the guest should see.
Signed-off-by: Filippo Sironi
---
arch/x86/include/asm/kvm_host.h | 2 ++
arch/x86/kvm/x86.c
... to make it easier for userspace applications to consume them.
Signed-off-by: Filippo Sironi
Cc: Bjorn Helgaas
Cc: linux-...@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
---
v2:
* follow up with the rename of vf_did to vf_device
drivers/pci/pci-sysfs.c | 33
dor
$ cat /sys/bus/pci/devices/\:03\:00.0/sriov_offset
128
$ cat /sys/bus/pci/devices/\:03\:00.0/sriov_stride
2
$ cat /sys/bus/pci/devices/\:03\:00.0/sriov_vf_device
10ca
Filippo Sironi (1):
pci: Expose offset, stride, and VF device ID via sysfs
drivers/pci/pci-sys
Previously, we were invalidating context cache and IOTLB globally when
clearing one context entry. This is a tad too aggressive.
Invalidate the context cache and IOTLB for the interested device only.
Signed-off-by: Filippo Sironi
Cc: David Woodhouse
Cc: David Woodhouse
Cc: Joerg Roedel
Cc
Previously, we were invalidating context cache and IOTLB globally when
clearing one context entry. This is a tad too aggressive.
Invalidate the context cache and IOTLB for the interested device only.
Signed-off-by: Filippo Sironi
Cc: David Woodhouse
Cc: David Woodhouse
Cc: Joerg Roedel
Cc
... and use it instead of reading it over and over from the PF config
space capability.
Signed-off-by: Filippo Sironi
Cc: linux-...@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
---
drivers/pci/iov.c | 5 +++--
drivers/pci/pci.h | 1 +
2 files changed, 4 insertions(+), 2 deletions(-)
diff
... to make it easier for userspace applications consumption.
Signed-off-by: Filippo Sironi
Cc: linux-...@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
---
drivers/pci/pci-sysfs.c | 33 +
1 file changed, 33 insertions(+)
diff --git a/drivers/pci/pci-sysfs.c b
).
Signed-off-by: Filippo Sironi
Cc: Anthony Liguori
Cc: k...@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
---
arch/x86/kvm/paging_tmpl.h | 42 +-
1 file changed, 33 insertions(+), 9 deletions(-)
diff --git a/arch/x86/kvm/paging_tmpl.h b/ar
).
Signed-off-by: Filippo Sironi
Cc: Anthony Liguori
Cc: k...@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
---
arch/x86/kvm/paging_tmpl.h | 39 ++-
1 file changed, 30 insertions(+), 9 deletions(-)
diff --git a/arch/x86/kvm/paging_tmpl.h b/arch/x86/kvm/pag
27 matches
Mail list logo
