On Thursday 04 July 2019 04:43 PM, Michael Ellerman wrote:
> "Naveen N. Rao" writes:
>> Nathan Lynch wrote:
>>> Aravinda Prasad writes:
>>>> Calculating the maximum memory based on the number of lmbs
>>>> and lmb size does not account f
On Friday 28 June 2019 10:57 PM, Nathan Lynch wrote:
> Aravinda Prasad writes:
>> Calculating the maximum memory based on the number of lmbs
>> and lmb size does not account for the RMA region. Hence
>> use memory_hotplug_max(), which already accounts for the
>&g
: 772b039fd9a7: ("powerpc/pseries: Export maximum memory value")
Signed-off-by: Aravinda Prasad
---
arch/powerpc/platforms/pseries/lparcfg.c |4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/powerpc/platforms/pseries/lparcfg.c
b/arch/powerpc/platfor
On Thursday 27 June 2019 04:06 AM, Nathan Lynch wrote:
> Aravinda Prasad writes:
>> Calculating the maximum memory based on the number of lmbs
>> and lmb size does not account for the RMA region. Hence
>> use drmem_lmb_memory_max(), which already accounts for the
>&g
t;)
Signed-off-by: Aravinda Prasad
---
arch/powerpc/platforms/pseries/lparcfg.c |2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/powerpc/platforms/pseries/lparcfg.c
b/arch/powerpc/platforms/pseries/lparcfg.c
index e33e8bc..f425842 100644
--- a/arch/powerpc/platfor
On Wednesday 20 February 2019 06:36 AM, Paul Mackerras wrote:
> This adds an "in_guest" parameter to machine_check_print_event_info()
> so that we can avoid trying to translate guest NIP values into
> symbolic form using the host kernel's symbol table.
Reviewed-by: A
machine_check_print_event_info(&vcpu->arch.mce_evt, false);
> break;
> case BOOK3S_INTERRUPT_PROGRAM:
> {
> diff --git a/arch/powerpc/kvm/book3s_hv_ras.c
> b/arch/powerpc/kvm/book3s_hv_ras.c
> index 0787f12..9aa10b1 100644
&g
On Wednesday 10 October 2018 09:50 PM, Nathan Fontenot wrote:
> On 10/10/2018 05:22 AM, Aravinda Prasad wrote:
>> This patch exports the maximum possible amount of memory
>> configured on the system via /proc/powerpc/lparcfg.
>>
>> Signed-off-by: Aravinda Pras
comments.
Signed-off-by: Aravinda Prasad
---
arch/powerpc/platforms/pseries/lpar.c | 54 +
1 file changed, 54 insertions(+)
diff --git a/arch/powerpc/platforms/pseries/lpar.c
b/arch/powerpc/platforms/pseries/lpar.c
index d3992ce..1c757a4 100644
--- a/arch
On Wednesday 10 October 2018 10:19 PM, Naveen N. Rao wrote:
> Nathan Fontenot wrote:
>> On 10/10/2018 05:22 AM, Aravinda Prasad wrote:
>>> This patch exports the maximum possible amount of memory
>>> configured on the system via /proc/powerpc/lparcfg.
>>>
This patch exports the maximum possible amount of memory
configured on the system via /proc/powerpc/lparcfg.
Signed-off-by: Aravinda Prasad
---
arch/powerpc/platforms/pseries/lparcfg.c | 13 +
1 file changed, 13 insertions(+)
diff --git a/arch/powerpc/platforms/pseries/lparcfg.c
This patch exports the raw per-CPU VPA data via debugfs.
A per-CPU file is created which exports the VPA data of
that CPU to help debug some of the VPA related issues or
to analyze the per-CPU VPA related statistics.
Signed-off-by: Aravinda Prasad
---
arch/powerpc/platforms/pseries/lpar.c
Hi Michael,
On Monday 24 September 2018 05:12 PM, Michael Ellerman wrote:
> Hi Aravinda,
>
> Aravinda Prasad writes:
>
>> This patch exports the raw per-CPU VPA data via debugfs.
>> A per-CPU file is created which exports the VPA data of
>> that CPU to help debug
This patch exports the raw per-CPU VPA data via debugfs.
A per-CPU file is created which exports the VPA data of
that CPU to help debug some of the VPA related issues or
to analyze the per-CPU VPA related statistics.
Signed-off-by: Aravinda Prasad
---
arch/powerpc/platforms/pseries/lpar.c
This patch exports VPA related data such as stolen and
donated CPU cycles through /proc/powerpc/lparcfg file.
Signed-off-by: Aravinda Prasad
---
arch/powerpc/include/asm/lppaca.h| 10 ++-
arch/powerpc/platforms/pseries/lparcfg.c | 45 ++
2 files
kernel to perform
actions in virtual mode before passing on the exception
to the guest. This approach does not require complex
tweaks to machine_check_fwnmi and friends.
Signed-off-by: Aravinda Prasad
Reviewed-by: David Gibson
---
arch/powerpc/kvm/book3s_hv.c| 27
chine check error if the exception was delivered
to guest's 0x200 interrupt vector instead of NMI exit
in case of old QEMU.
Signed-off-by: Aravinda Prasad
Reviewed-by: David Gibson
---
Documentation/virtual/kvm/api.txt | 11 +++
arch/powerpc/include/asm/kvm_host.h |1 +
redirect MCE.
- Fix access width bug
Change Log v2:
- Added KVM capability
---
Aravinda Prasad (2):
KVM: PPC: Add new capability to control MCE behaviour
KVM: PPC: Exit guest upon MCE when FWNMI capability is enabled
Documentation/virtual/kvm/api.txt | 11 +++
ar
On Thursday 12 January 2017 03:26 PM, Paul Mackerras wrote:
> On Mon, Jan 09, 2017 at 05:10:35PM +0530, Aravinda Prasad wrote:
>> This patch introduces a new KVM capability to control
>> how KVM behaves on machine check exception (MCE).
>> Without this capability, KVM re
On Thursday 12 January 2017 02:35 PM, Balbir Singh wrote:
> On Mon, Jan 09, 2017 at 05:10:45PM +0530, Aravinda Prasad wrote:
[ . . .]
>> The reasons for this approach is (i) it is not possible
>> to distinguish whether the exception occurred in the
>> guest or the host fr
kernel to perform
actions in virtual mode before passing on the exception
to the guest. This approach does not require complex
tweaks to machine_check_fwnmi and friends.
Signed-off-by: Aravinda Prasad
---
arch/powerpc/kvm/book3s_hv.c| 27 +-
arch/powerpc/kvm
before
passing on the exception to the guest.
Change Log v3:
- Split the patch into 2. First patch introduces the
new capability while the second one enhances KVM to
redirect MCE.
- Fix access width bug
Change Log v2:
- Added KVM capability
Signed-off-by: Aravinda Prasad
On Monday 20 June 2016 10:48 AM, Paul Mackerras wrote:
> Hi Aravinda,
>
> On Wed, Jan 13, 2016 at 12:38:09PM +0530, Aravinda Prasad wrote:
>> Enhance KVM to cause a guest exit with KVM_EXIT_NMI
>> exit reasons upon a machine check exception (MCE) in
>> the
On Sunday 24 January 2016 02:54 AM, Paul Mackerras wrote:
> On Sat, Jan 23, 2016 at 06:23:35PM +0530, Aravinda Prasad wrote:
>>
>>
>> On Saturday 23 January 2016 03:58 PM, Paul Mackerras wrote:
>>> On Wed, Jan 13, 2016 at 12:38:09PM +0530, Aravinda Prasad wrote:
>
On Saturday 23 January 2016 03:58 PM, Paul Mackerras wrote:
> On Wed, Jan 13, 2016 at 12:38:09PM +0530, Aravinda Prasad wrote:
>> Enhance KVM to cause a guest exit with KVM_EXIT_NMI
>> exit reasons upon a machine check exception (MCE) in
>> the guest address space if
On Saturday 23 January 2016 03:50 PM, Paul Mackerras wrote:
> On Wed, Jan 13, 2016 at 12:37:59PM +0530, Aravinda Prasad wrote:
>> This patch introduces a new KVM capability to control
>> how KVM behaves on machine check exception (MCE).
>> Without this capability, KVM re
discussions can be found at:
https://lists.nongnu.org/archive/html/qemu-devel/2014-11/msg00813.html
Signed-off-by: Aravinda Prasad
---
arch/powerpc/kvm/book3s_hv.c| 12 ++--
arch/powerpc/kvm/book3s_hv_rmhandlers.S | 48 +++
2 files changed, 26
lity while the second one enhances KVM to
redirect MCE.
- Fix access width bug
- Rebased to v4.4-rc7
Change Log v2:
- Added KVM capability
Signed-off-by: Aravinda Prasad
---
arch/powerpc/include/asm/kvm_host.h |1 +
arch/powerpc/kernel/asm-offsets.c |1 +
arch/powerpc/kvm/
On Thursday 17 December 2015 08:02 AM, David Gibson wrote:
> On Wed, Dec 16, 2015 at 11:26:12AM +0530, Aravinda Prasad wrote:
>> This patch modifies KVM to cause a guest exit with
>> KVM_EXIT_NMI instead of immediately delivering a 0x200
>> interrupt to guest upon machi
On Wednesday 16 December 2015 03:10 PM, Thomas Huth wrote:
> On 16/12/15 06:56, Aravinda Prasad wrote:
>> This patch modifies KVM to cause a guest exit with
>> KVM_EXIT_NMI instead of immediately delivering a 0x200
>> interrupt to guest upon machine check exception in
>
e, it treats it as a fatal error. However,
the guest could have handled the machine check error
if the exception was delivered to guest's 0x200 interrupt
vector instead of NMI exit in case of old QEMU.
Change Log v2:
- Added KVM capability
Signed-off-by: Aravinda Prasad
---
arch/power
On Friday 13 November 2015 01:08 PM, Thomas Huth wrote:
> On 13/11/15 07:26, Aravinda Prasad wrote:
>>
>> On Friday 13 November 2015 07:20 AM, David Gibson wrote:
>>> On Thu, Nov 12, 2015 at 11:22:29PM +0530, Aravinda Prasad wrote:
> [...]
>>>> So thinkin
On Friday 13 November 2015 07:20 AM, David Gibson wrote:
> On Thu, Nov 12, 2015 at 11:22:29PM +0530, Aravinda Prasad wrote:
[...]
>>
>> I overlooked it. I think I need to take into consideration whether guest
>> issued "ibm, nmi-register". If the guest has issued
On Friday 13 November 2015 03:07 AM, Daniel Axtens wrote:
> Aravinda Prasad writes:
>
>>> Yeah, it would be good not to break this.
>>
>> I am not familiar with CAPI. Does this affect CAPI?
>
> When a CAPI card experiences an EEH event, any cache lines it hold
On Thursday 12 November 2015 10:13 AM, David Gibson wrote:
> On Thu, Nov 12, 2015 at 10:02:10AM +0530, Aravinda Prasad wrote:
>>
>>
>> On Thursday 12 November 2015 09:08 AM, David Gibson wrote:
>>> On Thu, Nov 12, 2015 at 01:24:19PM +1100, Daniel Axtens wrote
On Thursday 12 November 2015 10:28 AM, Daniel Axtens wrote:
>
>> So, IIUC. Once the qemu pieces are in place as well it shouldn't
>> change this behaviour: KVM will exit to qemu, qemu will log the error
>> information (new), then reinject the MC to the guest which can still
>> handle it as you
On Thursday 12 November 2015 09:04 AM, David Gibson wrote:
> On Wed, Nov 11, 2015 at 10:28:46PM +0530, Aravinda Prasad wrote:
>> This patch modifies KVM to cause a guest exit with
>> KVM_EXIT_NMI instead of immediately delivering a 0x200
>> interrupt to guest upon machi
On Thursday 12 November 2015 09:08 AM, David Gibson wrote:
> On Thu, Nov 12, 2015 at 01:24:19PM +1100, Daniel Axtens wrote:
>> Aravinda Prasad writes:
>>
>>> This patch modifies KVM to cause a guest exit with
>>> KVM_EXIT_NMI instead of immediately delivering a
discussions can be found at:
https://lists.nongnu.org/archive/html/qemu-devel/2014-11/msg00813.html
Signed-off-by: Aravinda Prasad
---
arch/powerpc/kvm/book3s_hv.c| 12 +++-
arch/powerpc/kvm/book3s_hv_rmhandlers.S | 31 +++
2 files changed, 14
dated RTAS.
Enhancements to qemu to handle the private HCALL, prepare
error log and invoke machine check notification routine
are in a separate patch.
Signed-off-by: Nikunj A. Dadhania
Signed-off-by: Aravinda Prasad
---
board-qemu/slof/rtas.fs |6 +-
lib/libhvcall/hvcall.code |6 ++
lib
is re-registering.
Signed-off-by: Aravinda Prasad
---
arch/powerpc/kernel/ptrace.c |4
1 files changed, 4 insertions(+), 0 deletions(-)
diff --git a/arch/powerpc/kernel/ptrace.c b/arch/powerpc/kernel/ptrace.c
index 79d8e56..09371d0 100644
--- a/arch/powerpc/kernel/ptrace.c
+++ b/arch/po
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