On Mon, 14 Jul 2014 19:03:35 +0200
Alexander Graf ag...@suse.de wrote:
On PowerPC we have a small problem :). We can run both HV and PR style VMs
on the same kvm fd. While this is great, it means that anything that's
different between the two needs to have a token in form of a VM fd to find
There are shadow registers like, GSPRG[0-3], GSRR0, GSRR1 etc on
BOOKE-HV and these shadow registers are guest accessible.
So these shadow registers needs to be updated on BOOKE-HV.
This patch enhance the existing macros to handle shadow registers.
Signed-off-by: Bharat Bhushan
kvmppc_set_epr() is already defined in asm/kvm_ppc.h, So
rename and move get_epr helper function to same file.
Signed-off-by: Bharat Bhushan bharat.bhus...@freescale.com
---
arch/powerpc/include/asm/kvm_ppc.h | 9 +
arch/powerpc/kvm/booke.c | 11 +--
2 files changed,
Add and use kvmppc_set_esr() and kvmppc_get_esr() helper functions
Signed-off-by: Bharat Bhushan bharat.bhus...@freescale.com
---
arch/powerpc/include/asm/kvm_ppc.h | 1 +
arch/powerpc/kvm/booke.c | 24 +++-
2 files changed, 4 insertions(+), 21 deletions(-)
diff
Use kvmppc_set_srr0/srr1() and kvmppc_get_srr0/srr1() helper functions
Signed-off-by: Bharat Bhushan bharat.bhus...@freescale.com
---
arch/powerpc/kvm/booke.c | 17 ++---
1 file changed, 6 insertions(+), 11 deletions(-)
diff --git a/arch/powerpc/kvm/booke.c
Use kvmppc_set_sprg[0-7]() and kvmppc_get_sprg[0-7]() helper
functions
Signed-off-by: Bharat Bhushan bharat.bhus...@freescale.com
---
arch/powerpc/kvm/booke.c | 32
arch/powerpc/kvm/booke_emulate.c | 8
2 files changed, 20 insertions(+), 20
Uses kvmppc_set_dar() and kvmppc_get_dar() helper functions
Signed-off-by: Bharat Bhushan bharat.bhus...@freescale.com
---
arch/powerpc/kvm/booke.c | 24 +++-
1 file changed, 3 insertions(+), 21 deletions(-)
diff --git a/arch/powerpc/kvm/booke.c b/arch/powerpc/kvm/booke.c
Am 15.07.2014 um 08:50 schrieb Cornelia Huck cornelia.h...@de.ibm.com:
On Mon, 14 Jul 2014 19:03:35 +0200
Alexander Graf ag...@suse.de wrote:
On PowerPC we have a small problem :). We can run both HV and PR style VMs
on the same kvm fd. While this is great, it means that anything that's
Il 14/07/2014 19:03, Alexander Graf ha scritto:
On PowerPC we have a small problem :). We can run both HV and PR style VMs
on the same kvm fd. While this is great, it means that anything that's
different between the two needs to have a token in form of a VM fd to find
out which one we're asking
On 07/14/2014 10:27 PM, Gleb Natapov wrote:
..
if (likely(kvm-arch.ept_identity_pagetable_done))
return 1;
- ret = 0;
identity_map_pfn = kvm-arch.ept_identity_map_addr PAGE_SHIFT;
+
+ mutex_lock(kvm-slots_lock);
Why move this out of
On 14/07/14 16:09, Sam Ravnborg wrote:
Remove redundant assignments.
Signed-off-by: Sam Ravnborg s...@ravnborg.org
Cc: Guan Xuetao g...@mprc.pku.edu.cn
---
arch/unicore32/include/uapi/asm/Kbuild | 7 +--
1 file changed, 1 insertion(+), 6 deletions(-)
diff --git
Hi James.
+# Wapper from asm-generic
generic-y += kvm_para.h
You dropped the generic-y += kvm_para.h for arm64 c6x, but not for
unicore, avr32 ia64 patch, which seems a bit inconsistent. Was there
some reason behind that?
I was fooling around with kvm_para.h and in both cases
On 07/15/2014 09:01 AM, Bharat Bhushan wrote:
These are primarily the cleanup patches, where shared struct get/set
helper function are enhanced to handle shadow registers and uses those
helper functions.
Eventually this also fix SRR0/1 synchronization from userspace
Bharat Bhushan (6):
kvm:
On 2014-07-14 16:58, Gleb Natapov wrote:
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index ffbe557..7080eda 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -5929,6 +5929,18 @@ static void vcpu_scan_ioapic(struct kvm_vcpu *vcpu)
kvm_apic_update_tmr(vcpu, tmr);
}
On Tue, Jul 15, 2014 at 01:52:40PM +0200, Jan Kiszka wrote:
On 2014-07-14 16:58, Gleb Natapov wrote:
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index ffbe557..7080eda 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -5929,6 +5929,18 @@ static void
On 07/15/2014 07:52 PM, Jan Kiszka wrote:
On 2014-07-14 16:58, Gleb Natapov wrote:
..
+ struct page *page = gfn_to_page_no_pin(vcpu-kvm,
+ APIC_DEFAULT_PHYS_BASE PAGE_SHIFT);
If you do not use kvm-arch.apic_access_page to get current address
On 07/15/2014 08:09 PM, Gleb Natapov wrote:
On Tue, Jul 15, 2014 at 01:52:40PM +0200, Jan Kiszka wrote:
..
I cannot follow your concerns yet. Specifically, how should
APIC_ACCESS_ADDR (the VMCS field, right?) change while L2 is running? We
currently pin/unpin on L1-L2/L2-L1, respectively.
On Tue, Jul 15, 2014 at 08:28:22PM +0800, Tang Chen wrote:
On 07/15/2014 08:09 PM, Gleb Natapov wrote:
On Tue, Jul 15, 2014 at 01:52:40PM +0200, Jan Kiszka wrote:
..
I cannot follow your concerns yet. Specifically, how should
APIC_ACCESS_ADDR (the VMCS field, right?) change while L2 is
On 07/15/2014 08:40 PM, Gleb Natapov wrote:
On Tue, Jul 15, 2014 at 08:28:22PM +0800, Tang Chen wrote:
On 07/15/2014 08:09 PM, Gleb Natapov wrote:
On Tue, Jul 15, 2014 at 01:52:40PM +0200, Jan Kiszka wrote:
..
I cannot follow your concerns yet. Specifically, how should
APIC_ACCESS_ADDR
On 2014-07-15 14:40, Gleb Natapov wrote:
..
7922 if (!vmx-nested.apic_access_page)
7923 exec_control =
7924 ~SECONDARY_EXEC_VIRTUALIZE_APIC_ACCESSES;
7925 else
7926
/kvm-s390-20140715
for you to fetch changes up to 6352e4d2dd9a349024a41356148eced553e1dce4:
KVM: s390: implement KVM_(S|G)ET_MP_STATE for user space state control
(2014-07-10 14:11:17 +0200)
This series enables the KVM_(S|G
From: David Hildenbrand d...@linux.vnet.ibm.com
A SIGP STOP (AND STORE STATUS) order is complete as soon as the VCPU has been
stopped. This patch makes sure that only one SIGP STOP (AND STORE STATUS) may
be pending at a time (as defined by the architecture). If the action_bits are
still set, a
From: David Hildenbrand d...@linux.vnet.ibm.com
Highlight the aspects of the ioctls that are actually specific to x86
and ia64. As defined restrictions (irqchip) and mp states may not apply
to other architectures, these parts are flagged to belong to x86 and ia64.
In preparation for the use of
From: David Hildenbrand d...@linux.vnet.ibm.com
The function __cpu_is_stopped is not used any more. Let's remove it and
expose the function is_vcpu_stopped instead, which is actually what we want.
This patch also converts an open coded check for CPUSTAT_STOPPED to
is_vcpu_stopped().
From: David Hildenbrand d...@linux.vnet.ibm.com
Let's move the finalization of SIGP STOP and SIGP STOP AND STORE STATUS orders
to
the point where the VCPU is actually stopped.
This change is needed to prepare for a user space driven VCPU state change. The
action_bits may only be cleared when
From: David Hildenbrand d...@linux.vnet.ibm.com
This patch
- adds s390 specific MP states to linux headers and documents them
- implements the KVM_{SET,GET}_MP_STATE ioctls
- enables KVM_CAP_MP_STATE
- allows user space to control the VCPU state on s390.
If user space sets the VCPU state using
On Tue, Jul 15, 2014 at 03:10:15PM +0200, Jan Kiszka wrote:
On 2014-07-15 14:40, Gleb Natapov wrote:
..
7922 if (!vmx-nested.apic_access_page)
7923 exec_control =
7924 ~SECONDARY_EXEC_VIRTUALIZE_APIC_ACCESSES;
7925
On Mon, Jul 07, 2014 at 05:27:34PM +0200, Peter Zijlstra wrote:
On Fri, Jun 20, 2014 at 09:46:08AM -0400, Konrad Rzeszutek Wilk wrote:
I dug in the code and I have some comments about it, but before
I post them I was wondering if you have any plans to run any performance
tests against the
Haswell and newer Intel CPUs have support for RTM, and in that case DR6.RTM is
not fixed to 1 and DR7.RTM is not fixed to zero. That is not the case in the
current KVM implementation. This bug is apparent only if the MOV-DR instruction
is emulated or the host also debugs the guest.
This patch is
On Tue, Jul 15, 2014 at 08:54:01PM +0800, Tang Chen wrote:
On 07/15/2014 08:40 PM, Gleb Natapov wrote:
On Tue, Jul 15, 2014 at 08:28:22PM +0800, Tang Chen wrote:
On 07/15/2014 08:09 PM, Gleb Natapov wrote:
On Tue, Jul 15, 2014 at 01:52:40PM +0200, Jan Kiszka wrote:
..
I cannot follow
Recently discovered bug shows DR6.RTM is fixed to one. The bug is only apparent
when the host emulates the MOV-DR instruction or when the host debugs the
guest kernel. This patch tests whether DR6.RTM is indeed accessible according
to RTM support as reported by cpuid.
Signed-off-by: Nadav Amit
On Mon, Jul 14, 2014 at 12:25:56PM -0700, kan.li...@intel.com wrote:
Close enough.
+#define EVENT_EXTRA_REG(e, ms, m, vm, i, a) {\
+ .event = (e), \
+ .msr = (ms),\
+ .config_mask = (m), \
+ .valid_mask = (vm),
Since nobody ever treats EVENT_EXTRA_END as an actual event, the value
of .extra_msr_access is irrelevant, this leaves the only 'possible'
value 'true' and we can delete all those changes.
Right.
Which, combined with a few whitespace cleanups, gives the below patch.
Thanks. Your
On Tue, Jul 15, 2014 at 03:32:36PM +, Liang, Kan wrote:
Since nobody ever treats EVENT_EXTRA_END as an actual event, the value
of .extra_msr_access is irrelevant, this leaves the only 'possible'
value 'true' and we can delete all those changes.
Right.
Which, combined with
On Fri, Jul 11, 2014 at 12:07:25PM +0200, Andrew Jones wrote:
On Fri, Jul 11, 2014 at 11:41:34AM +0200, Paolo Bonzini wrote:
Il 11/07/2014 10:55, Andrew Jones ha scritto:
On Fri, Jul 11, 2014 at 10:40:42AM +0200, Paolo Bonzini wrote:
Il 11/07/2014 10:19, Andrew Jones ha scritto:
alloc_ops
On Fri, Jul 11, 2014 at 10:47:00AM +0200, Paolo Bonzini wrote:
Il 11/07/2014 10:19, Andrew Jones ha scritto:
This is a v6 of a series that introduces arm to kvm-unit-tests. As
the tidy-up patches from v5 have already been merged (thanks!), these
are just the remaining patches. Although there
On Fri, Jul 11, 2014 at 11:08:28AM +0200, Andrew Jones wrote:
On Fri, Jul 11, 2014 at 10:32:51AM +0200, Paolo Bonzini wrote:
Il 11/07/2014 10:19, Andrew Jones ha scritto:
+enum virtio_hwdesc_type {
+ VIRTIO_HWDESC_TYPE_DT = 0, /* device tree */
+ NR_VIRTIO_HWDESC_TYPES,
+};
+
Il 16/05/2014 17:15, Alexander Graf ha scritto:
When we migrate we ask the kernel about its current belief on what the guest
time would be. However, I've seen cases where the kvmclock guest structure
indicates a time more recent than the kvm returned time.
To make sure we never go backwards,
Il 15/07/2014 19:24, Andrew Jones ha scritto:
On Fri, Jul 11, 2014 at 10:47:00AM +0200, Paolo Bonzini wrote:
Il 11/07/2014 10:19, Andrew Jones ha scritto:
This is a v6 of a series that introduces arm to kvm-unit-tests. As
the tidy-up patches from v5 have already been merged (thanks!), these
This is a note to let you know that I have just added a patch titled
MIPS: KVM: Allocate at least 16KB for exception handlers
to the linux-3.13.y-queue branch of the 3.13.y.z extended stable tree
which can be found at:
3.13.11.5 -stable review patch. If anyone has any objections, please let me
know.
--
From: James Hogan james.ho...@imgtec.com
commit 7006e2dfda9adfa40251093604db76d7e44263b3 upstream.
Each MIPS KVM guest has its own copy of the KVM exception vector. This
contains the TLB
virtio-rng is both too complicated and insufficient for initial rng
seeding. It's far too complicated to use for KASLR or any other
early boot random number needs. It also provides /dev/random-style
bits, which means that making guest boot wait for virtio-rng is
unacceptably slow, and doing it
This adds a simple interface to allow a guest to request 64 bits of
host nonblocking entropy. This is independent of virtio-rng for a
couple of reasons:
- It's intended to be usable during early boot, when a trivial
synchronous interface is needed.
- virtio-rng gives blocking entropy, and
This should help solve the problem of guests starting out with
predictable RNG state.
Signed-off-by: Andy Lutomirski l...@amacapital.net
---
drivers/char/random.c | 14 +-
1 file changed, 13 insertions(+), 1 deletion(-)
diff --git a/drivers/char/random.c b/drivers/char/random.c
arch_get_slow_rng_u64 tries to get 64 bits of RNG seed data. Unlike
arch_get_random_{bytes,seed}, etc., it makes no claims about entropy
content. It's also likely to be much slower and should not be used
frequently. That being said, it should be fast enough to call
several times during boot
It's considerably better than any of the alternatives on KVM.
Signed-off-by: Andy Lutomirski l...@amacapital.net
---
arch/x86/boot/compressed/aslr.c | 27 +++
1 file changed, 27 insertions(+)
diff --git a/arch/x86/boot/compressed/aslr.c b/arch/x86/boot/compressed/aslr.c
Signed-off-by: Andy Lutomirski l...@amacapital.net
---
config/config-x86-common.mak | 5 -
x86/get_rng_seed.c | 50
x86/unittests.cfg| 3 +++
3 files changed, 57 insertions(+), 1 deletion(-)
create mode 100644
SPRN_SPRG is used by debug interrupt handler, so this is required
for debug support.
Signed-off-by: Bharat Bhushan bharat.bhus...@freescale.com
---
arch/powerpc/include/asm/kvm_host.h | 1 +
arch/powerpc/kernel/asm-offsets.c | 1 +
arch/powerpc/kvm/bookehv_interrupts.S | 4
3 files
Add and use kvmppc_set_esr() and kvmppc_get_esr() helper functions
Signed-off-by: Bharat Bhushan bharat.bhus...@freescale.com
---
arch/powerpc/include/asm/kvm_ppc.h | 1 +
arch/powerpc/kvm/booke.c | 24 +++-
2 files changed, 4 insertions(+), 21 deletions(-)
diff
Use kvmppc_set_srr0/srr1() and kvmppc_get_srr0/srr1() helper functions
Signed-off-by: Bharat Bhushan bharat.bhus...@freescale.com
---
arch/powerpc/kvm/booke.c | 17 ++---
1 file changed, 6 insertions(+), 11 deletions(-)
diff --git a/arch/powerpc/kvm/booke.c
Uses kvmppc_set_dar() and kvmppc_get_dar() helper functions
Signed-off-by: Bharat Bhushan bharat.bhus...@freescale.com
---
arch/powerpc/kvm/booke.c | 24 +++-
1 file changed, 3 insertions(+), 21 deletions(-)
diff --git a/arch/powerpc/kvm/booke.c b/arch/powerpc/kvm/booke.c
Am 15.07.2014 um 08:50 schrieb Cornelia Huck cornelia.h...@de.ibm.com:
On Mon, 14 Jul 2014 19:03:35 +0200
Alexander Graf ag...@suse.de wrote:
On PowerPC we have a small problem :). We can run both HV and PR style VMs
on the same kvm fd. While this is great, it means that anything that's
kvmppc_set_epr() is already defined in asm/kvm_ppc.h, So
rename and move get_epr helper function to same file.
Signed-off-by: Bharat Bhushan bharat.bhus...@freescale.com
---
arch/powerpc/include/asm/kvm_ppc.h | 9 +
arch/powerpc/kvm/booke.c | 11 +--
2 files
-Original Message-
From: Caraman Mihai Claudiu-B02008
Sent: Tuesday, July 15, 2014 10:20 PM
To: Alexander Graf
Cc: Bhushan Bharat-R65777; kvm-ppc@vger.kernel.org
Subject: Re: [PATCH 6/6] kvm: ppc: Add SPRN_SPR get helper function
kvmppc_set_epr() is already defined in
SPRN_SPRG is used by debug interrupt handler, so this is required
for debug support.
Signed-off-by: Bharat Bhushan bharat.bhus...@freescale.com
---
arch/powerpc/include/asm/kvm_host.h | 1 +
arch/powerpc/kernel/asm-offsets.c | 1 +
arch/powerpc/kvm/bookehv_interrupts.S | 4
3 files
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