On Mon, 2015-10-26 at 16:15 +1100, Paul Mackerras wrote:
> On Fri, Oct 16, 2015 at 08:41:31AM +0200, Thomas Huth wrote:
> > Yes, we'll likely need this soon! 32 slots are not enough...
>
> Would anyone object if I raised the limit for PPC to 512 slots?
> Would that cause problems on embedded PPC,
On Thu, 2015-10-01 at 15:58 +0300, Laurentiu Tudor wrote:
> Fix couple of cases where we shift left a 32-bit
> value thus might get truncated results on 64-bit
> targets.
>
> Signed-off-by: Laurentiu Tudor
> Suggested-by: Scott Wood
> ---
> arch/powerpc/kvm/e500_mmu_h
2 files changed, 24 insertions(+)
Acked-by: Scott Wood
-Scott
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1 file changed, 2 insertions(+), 1 deletion(-)
Acked-by: Scott Wood
-Scott
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[Added KVM lists and a couple relevant people]
On Fri, 2015-07-31 at 14:25 +0530, Hemant Kumar wrote:
> On 07/30/2015 03:52 AM, Scott Wood wrote:
> > On Wed, 2015-07-29 at 16:07 +0530, Hemant Kumar wrote:
> > > Hi Scott,
> > >
> > > On 07/17/2015 01:40 AM, Sc
On Tue, 2015-07-07 at 16:05 +0800, wenwei tao wrote:
> Hi Scott
>
> I understand what you said.
>
> I will use the function 'is_vm_hugetlb_page()' to hide the bit
> combinations according to your comments in the next version of patch
> set.
>
> But for the situation like below, there isn't an ob
On Fri, 2015-07-03 at 16:47 +0800, wenwei tao wrote:
> Hi Scott
>
> Thank you for your comments.
>
> Kernel already has that function: is_vm_hugetlb_page() , but the
> original code didn't use it,
> in order to keep the coding style of the original code, I didn't use it
> either.
>
> For the sen
On Wed, 2015-06-10 at 14:27 +0800, Wenwei Tao wrote:
> Hugetlb VMAs are not mergeable, that means a VMA couldn't have VM_HUGETLB
> and
> VM_MERGEABLE been set in the same time. So we use VM_HUGETLB to indicate new
> mergeable VMAs. Because of that a VMA which has VM_HUGETLB been set is a
> hugetl
mp; MAS6_SAS) ? MAS1_TS : 0)
> | (vcpu->arch.shared->mas4 & MAS4_TSIZED(~0));
> vcpu->arch.shared->mas2 &= MAS2_EPN;
> vcpu->arch.shared->mas2 |= vcpu->arch.shared->mas4 &
Reviewed-by: Scott Woo
i Caraman
> Signed-off-by: Laurentiu Tudor
> Cc: Scott Wood
> ---
> based on https://github.com/agraf/linux-2.6.git kvm-ppc-next
>
> arch/powerpc/kvm/e500_mmu_host.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
Reviewed-by: Scott Wood
-Scott
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To unsubscribe
On Wed, 2015-01-07 at 10:55 +, Andre Przywara wrote:
> Hi Scott,
>
> thanks for looking at the patch.
>
> On 06/01/15 20:52, Scott Wood wrote:
> > Out of curiosity, why do you need to test it from inside the kernel but
> > outside kvm_main.c?
>
> I n
On Wed, 2015-01-07 at 18:11 +, Andre Przywara wrote:
> On 07/01/15 17:45, Scott Wood wrote:
> > On Wed, 2015-01-07 at 10:55 +, Andre Przywara wrote:
> >> Hi Scott,
> >>
> >> thanks for looking at the patch.
> >>
> >> On 06/01/15 20:52
On Tue, 2015-01-06 at 16:12 +, Andre Przywara wrote:
> While we can easily register and unregister KVM devices, there is
> currently no easy way of checking whether a device has been
> registered.
> Introduce kvm_check_device() for that purpose and use it in two
> existing functions. Also chang
On Fri, 2014-09-12 at 09:12 -0500, Purcareata Bogdan-B43198 wrote:
> > -Original Message-
> > From: Wood Scott-B07421
> > Sent: Thursday, September 11, 2014 9:19 PM
> > To: Purcareata Bogdan-B43198
> > Cc: kvm-...@vger.kernel.org; kvm@vger.kernel.org
> > Subject: Re: [PATCH] KVM: PPC: Conve
On Thu, 2014-09-11 at 15:25 -0400, Bogdan Purcareata wrote:
> This patch enables running intensive I/O workloads, e.g. netperf, in a guest
> deployed on a RT host. No change for !RT kernels.
>
> The openpic spinlock becomes a sleeping mutex on a RT system. This no longer
> guarantees that EPR is a
On Wed, 2014-08-27 at 13:23 +0200, Alexander Graf wrote:
>
> On 13.08.14 11:09, Bharat Bhushan wrote:
> > This patch emulates debug registers and debug exception
> > to support guest using debug resource. This enables running
> > gdb/kgdb etc in guest.
> >
> > On BOOKE architecture we cannot shar
On Tue, 2014-08-12 at 02:36 -0500, Bhushan Bharat-R65777 wrote:
>
> > -Original Message-
> > From: Wood Scott-B07421
> > Sent: Tuesday, August 12, 2014 5:30 AM
> > To: Bhushan Bharat-R65777
> > Cc: ag...@suse.de; kvm-...@vger.kernel.org; kvm@vger.kernel.org; Yoder
> > Stuart-
> > B08248
>
On Wed, 2014-08-06 at 12:08 +0530, Bharat Bhushan wrote:
> @@ -1249,6 +1284,7 @@ int kvmppc_subarch_vcpu_init(struct kvm_vcpu *vcpu)
> setup_timer(&vcpu->arch.wdt_timer, kvmppc_watchdog_func,
> (unsigned long)vcpu);
>
> + kvmppc_clear_dbsr();
> return 0;
This co
On Tue, 2014-08-12 at 01:53 +0200, Alexander Graf wrote:
>
> > Am 12.08.2014 um 01:36 schrieb Scott Wood :
> >
> >> On Wed, 2014-08-06 at 19:33 +0300, Mihai Caraman wrote:
> >> @@ -390,19 +400,30 @@ static void kvmppc_core_vcpu_free_e500mc(struct
> >
On Wed, 2014-08-06 at 19:33 +0300, Mihai Caraman wrote:
> @@ -390,19 +400,30 @@ static void kvmppc_core_vcpu_free_e500mc(struct
> kvm_vcpu *vcpu)
>
> static int kvmppc_core_init_vm_e500mc(struct kvm *kvm)
> {
> - int lpid;
> + int i, lpid;
>
> - lpid = kvmppc_alloc_lpid();
> -
On Mon, 2014-08-04 at 22:41 -0500, Bhushan Bharat-R65777 wrote:
>
> > -Original Message-
> > From: Wood Scott-B07421
> > Sent: Tuesday, August 05, 2014 4:23 AM
> > To: Bhushan Bharat-R65777
> > Cc: ag...@suse.de; kvm-...@vger.kernel.org; kvm@vger.kernel.org; Yoder
> > Stuart-
> > B08248
>
On Mon, 2014-08-04 at 22:33 -0500, Bhushan Bharat-R65777 wrote:
>
> > -Original Message-
> > From: Wood Scott-B07421
> > Sent: Tuesday, August 05, 2014 4:17 AM
> > To: Bhushan Bharat-R65777
> > Cc: ag...@suse.de; kvm-...@vger.kernel.org; kvm@vger.kernel.org; Yoder
> > Stuart-
> > B08248
>
On Mon, 2014-08-04 at 13:32 +0530, Bharat Bhushan wrote:
> @@ -735,7 +745,27 @@ static int kvmppc_handle_debug(struct kvm_run *run,
> struct kvm_vcpu *vcpu)
> struct debug_reg *dbg_reg = &(vcpu->arch.shadow_dbg_reg);
> u32 dbsr = vcpu->arch.dbsr;
>
> - /* Clear guest dbsr (vcpu->
On Mon, 2014-08-04 at 13:22 +0530, Bharat Bhushan wrote:
> Dbsr is not visible to userspace and we do not think any need to
> expose this to userspace because:
> Userspace cannot inject debug interrupt to guest (as this
> does not know guest ability to handle debug interrupt), so
> userspace
On Fri, 2014-08-01 at 04:34 -0500, Bhushan Bharat-R65777 wrote:
> on dbsr write emulation, deque the debug interrupt even if DBSR_IDE is set.
>
> case SPRN_DBSR:
>
> vcpu->arch.dbsr &= ~spr_val;
> if (!(vcpu->arch.dbsr & ~DBSR_IDE))
>
On Thu, 2014-07-31 at 01:15 -0500, Bhushan Bharat-R65777 wrote:
>
> > -Original Message-
> > From: Wood Scott-B07421
> > Sent: Thursday, July 31, 2014 8:18 AM
> > To: Bhushan Bharat-R65777
> > Cc: ag...@suse.de; kvm-...@vger.kernel.org; kvm@vger.kernel.org; Yoder
> > Stuart-
> > B08248
>
On Wed, 2014-07-30 at 01:43 -0500, Bhushan Bharat-R65777 wrote:
>
> > -Original Message-
> > From: Wood Scott-B07421
> > Sent: Tuesday, July 29, 2014 3:58 AM
> > To: Bhushan Bharat-R65777
> > Cc: ag...@suse.de; kvm-...@vger.kernel.org; kvm@vger.kernel.org; Yoder
> > Stuart-
> > B08248
> >
On Wed, 2014-07-30 at 12:57 -0500, Bhushan Bharat-R65777 wrote:
>
> > -Original Message-
> > From: Wood Scott-B07421
> > Sent: Wednesday, July 30, 2014 11:18 PM
> > To: Bhushan Bharat-R65777
> > Cc: ag...@suse.de; kvm-...@vger.kernel.org; kvm@vger.kernel.org; Yoder
> > Stuart-
> > B08248
On Wed, 2014-07-30 at 00:21 -0500, Bhushan Bharat-R65777 wrote:
>
> > -Original Message-
> > From: Wood Scott-B07421
> > Sent: Tuesday, July 29, 2014 3:22 AM
> > To: Bhushan Bharat-R65777
> > Cc: ag...@suse.de; kvm-...@vger.kernel.org; kvm@vger.kernel.org; Yoder
> > Stuart-
> > B08248
> >
On Tue, 2014-07-29 at 16:06 +0200, Alexander Graf wrote:
> On 29.07.14 00:33, Scott Wood wrote:
> > On Mon, 2014-07-28 at 16:04 +0200, Alexander Graf wrote:
> >> On 11.07.14 10:39, Bharat Bhushan wrote:
> >>> This patch emulates debug registers and debug exceptio
On Mon, 2014-07-28 at 03:54 -0500, Caraman Mihai Claudiu-B02008 wrote:
> > -Original Message-
> > From: Wood Scott-B07421
> > Sent: Saturday, July 26, 2014 3:11 AM
> > To: Caraman Mihai Claudiu-B02008
> > Cc: Alexander Graf; kvm-...@vger.kernel.org; kvm@vger.kernel.org;
> > linuxppc-...@lis
On Mon, 2014-07-28 at 16:04 +0200, Alexander Graf wrote:
> On 11.07.14 10:39, Bharat Bhushan wrote:
> > This patch emulates debug registers and debug exception
> > to support guest using debug resource. This enables running
> > gdb/kgdb etc in guest.
> >
> > On BOOKE architecture we cannot share de
On Fri, 2014-07-11 at 14:09 +0530, Bharat Bhushan wrote:
> This patch emulates debug registers and debug exception
> to support guest using debug resource. This enables running
> gdb/kgdb etc in guest.
>
> On BOOKE architecture we cannot share debug resources between QEMU and
> guest because:
>
On Fri, 2014-07-11 at 14:09 +0530, Bharat Bhushan wrote:
> When userspace is debugging guest then MSR_DE is always set and
> MSRP_DEP is set so that guest cannot change MSR_DE.
> Guest debug resources are not yet emulated, So there seems no reason
> we should stop guest controlling MSR_DE.
> Also a
On Fri, 2014-07-11 at 14:08 +0530, Bharat Bhushan wrote:
> When userspace (QEMU) is using the debug resource to debug guest
> then we want MSR_DE to be always set. This patch adds missing
> MSR_DE setting in "rfci" instruction.
>
> Signed-off-by: Bharat Bhushan
> ---
> arch/powerpc/kvm/booke_emu
On Fri, 2014-07-11 at 14:08 +0530, Bharat Bhushan wrote:
> This is not used and even I do not remember why this was added
> in first place.
>
> Signed-off-by: Bharat Bhushan
> ---
> arch/powerpc/kvm/booke.c | 2 --
> 1 file changed, 2 deletions(-)
>
> diff --git a/arch/powerpc/kvm/booke.c b/ar
code, TID clearing has been moved from tlb_miss_kernel_e6500
until after the SMT section.
Signed-off-by: Scott Wood
---
arch/powerpc/mm/tlb_low_64e.S | 68 +++
1 file changed, 56 insertions(+), 12 deletions(-)
diff --git a/arch/powerpc/mm/tlb_low_64e.S b
On Thu, 2014-07-24 at 04:16 -0500, Caraman Mihai Claudiu-B02008 wrote:
> Scott, Alex's request to define SPE handlers only for e500v2 implies changes
> in 32-bit FSL kernel to have exclusive configurations for e200/e500v2 and
> e500mc/e5500. We would probably need something like this, what's your t
On Thu, 2014-07-17 at 17:01 +0530, Bharat Bhushan wrote:
> 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 adds new macro for get/set helper of shad
On Fri, 2014-07-18 at 02:37 +0200, Alexander Graf wrote:
> On 18.07.14 02:36, Scott Wood wrote:
> > On Fri, 2014-07-18 at 02:33 +0200, Alexander Graf wrote:
> >> On 18.07.14 02:28, Scott Wood wrote:
> >>> On Thu, 2014-07-17 at 18:29 +0200, Alexander Graf wrote:
>
On Fri, 2014-07-18 at 02:33 +0200, Alexander Graf wrote:
> On 18.07.14 02:28, Scott Wood wrote:
> > On Thu, 2014-07-17 at 18:29 +0200, Alexander Graf wrote:
> >> On 17.07.14 18:27, Alexander Graf wrote:
> >>> On 17.07.14 18:24, bharat.bhus...@freescale.com wrote:
On Thu, 2014-07-17 at 18:29 +0200, Alexander Graf wrote:
> On 17.07.14 18:27, Alexander Graf wrote:
> >
> > On 17.07.14 18:24, bharat.bhus...@freescale.com wrote:
> >>
> >>> -Original Message-
> >>> From: Alexander Graf [mailto:ag...@suse.de]
> >>> Sent: Thursday, July 17, 2014 9:41 PM
> >>
On Thu, 2014-07-03 at 17:45 +0300, Mihai Caraman wrote:
> Handle indirect entries (IND) in TLB emulation code. Translation size of IND
> entries differ from the size of referred Page Tables (Linux guests now use IND
> of 2MB for 4KB PTs) and this require careful tweak of the existing logic.
>
> TL
On Fri, 2014-07-04 at 10:15 +0200, Alexander Graf wrote:
> On 03.07.14 16:45, Mihai Caraman wrote:
> > diff --git a/arch/powerpc/kvm/booke.c b/arch/powerpc/kvm/booke.c
> > index a192975..ab1077f 100644
> > --- a/arch/powerpc/kvm/booke.c
> > +++ b/arch/powerpc/kvm/booke.c
> > @@ -1286,6 +1286,46 @@
On Mon, 2014-06-30 at 18:34 +0300, Mihai Caraman wrote:
> Add KVM Book3E AltiVec support. KVM Book3E FPU support gracefully reuse host
> infrastructure so follow the same approach for AltiVec.
>
> Signed-off-by: Mihai Caraman
> ---
> v2:
> - integrate Paul's FP/VMX/VSX changes
>
> arch/powerpc
On Fri, 2014-07-04 at 00:35 +0200, Alexander Graf wrote:
> On 04.07.14 00:31, Scott Wood wrote:
> > On Thu, 2014-07-03 at 17:15 -0500, Scott Wood wrote:
> >> On Thu, 2014-07-03 at 10:25 -0500, Caraman Mihai Claudiu-B02008 wrote:
> >>>> -Original Message
On Thu, 2014-07-03 at 17:15 -0500, Scott Wood wrote:
> On Thu, 2014-07-03 at 10:25 -0500, Caraman Mihai Claudiu-B02008 wrote:
> > > -Original Message-
> > > From: Alexander Graf [mailto:ag...@suse.de]
> > > Sent: Thursday, July 03, 2014 3:21 PM
> > >
On Thu, 2014-07-03 at 10:25 -0500, Caraman Mihai Claudiu-B02008 wrote:
> > -Original Message-
> > From: Alexander Graf [mailto:ag...@suse.de]
> > Sent: Thursday, July 03, 2014 3:21 PM
> > To: Caraman Mihai Claudiu-B02008; kvm-...@vger.kernel.org
> > Cc: kvm@vger.kernel.org; linuxppc-...@lis
On Tue, 2014-07-01 at 18:22 +0200, Alexander Graf wrote:
> On 01.07.14 17:35, Scott Wood wrote:
> > On Tue, 2014-07-01 at 17:04 +0200, Alexander Graf wrote:
> >> On 01.07.14 16:58, Scott Wood wrote:
> >>> On Tue, 2014-07-01 at 08:23 +0200, Alexander Graf wrote:
>
On Tue, 2014-07-01 at 17:04 +0200, Alexander Graf wrote:
> On 01.07.14 16:58, Scott Wood wrote:
> > On Tue, 2014-07-01 at 08:23 +0200, Alexander Graf wrote:
> >> I don't think QEMU should be aware of these limitations.
> > OK, but we should at least have some i
On Tue, 2014-07-01 at 08:23 +0200, Alexander Graf wrote:
>
> > Am 30.06.2014 um 22:25 schrieb Scott Wood :
> >
> >> On Sun, 2014-06-29 at 23:38 -0500, Bhushan Bharat-R65777 wrote:
> >>
> >>> -Original Message-
> >>> From: Woo
On Sun, 2014-06-29 at 23:38 -0500, Bhushan Bharat-R65777 wrote:
>
> > -Original Message-
> > From: Wood Scott-B07421
> > Sent: Friday, June 27, 2014 11:53 PM
> > To: Bhushan Bharat-R65777
> > Cc: ag...@suse.de; kvm-...@vger.kernel.org; kvm@vger.kernel.org
> > Subject: Re: [PATCH 2/2] KVM :
On Mon, 2014-06-30 at 15:55 +0300, Mihai Caraman wrote:
> For FSL e6500 core the kernel uses power management SPR register (PWRMGTCR0)
> to enable idle power down for cores and devices by setting up the idle count
> period at boot time. With the host already controlling the power management
> confi
irq_save(flags);
> mtspr(SPRN_MAS6, 0);
> + mas4 = mfspr(SPRN_MAS4);
> + mtspr(SPRN_MAS4, mas4 & ~MAS4_TLBSEL_MASK);
> asm volatile("tlbsx 0, %0" : : "b" (eaddr & ~CONFIG_PAGE_OFFSET));
> mas0 = mfspr(SPRN_MAS0);
> + mtspr(SPRN_MAS4,
On Fri, 2014-06-27 at 11:55 +0530, Bharat Bhushan wrote:
> This patch allow userspace to inject debug interrupt to guest.
>
> Signed-off-by: Bharat Bhushan
Could you describe how userspace plans to make use of this, and go into
more detail about the changes you're making?
> ---
> arch/powerpc/
On Wed, 2014-06-25 at 01:40 +0200, Alexander Graf wrote:
> On 25.06.14 01:15, Scott Wood wrote:
> > On Wed, 2014-06-25 at 00:41 +0200, Alexander Graf wrote:
> >> On 24.06.14 20:53, Scott Wood wrote:
> >>> The timer interrupt works, but I'm not fully convinced th
On Wed, 2014-06-25 at 00:41 +0200, Alexander Graf wrote:
> On 24.06.14 20:53, Scott Wood wrote:
> > On Sun, 2014-06-22 at 23:23 +0200, Alexander Graf wrote:
> >> Howdy,
> >>
> >> Ben reminded me a while back that we have a nasty race in our KVM PV code.
> >
On Sun, 2014-06-22 at 23:23 +0200, Alexander Graf wrote:
> Howdy,
>
> Ben reminded me a while back that we have a nasty race in our KVM PV code.
>
> We replace a few instructions with longer streams of instructions to check
> whether it's necessary to trap out from it (like mtmsr, no need to trap
lt; ENTRIES; j++)
> bar = foo[j][0];
>
> return 0;
> }
>
> Signed-off-by: Mihai Caraman
> Cc: Scott Wood
> ---
> v4:
> - rename last_vcpu_on_cpu to last_vcpu_of_lpid
> - use "*[" syntax despite checkpatch error
>
&g
On Tue, 2014-06-17 at 15:02 -0500, Caraman Mihai Claudiu-B02008 wrote:
> > -Original Message-
> > From: Wood Scott-B07421
> > Sent: Tuesday, June 17, 2014 10:48 PM
> > To: Caraman Mihai Claudiu-B02008
> > Cc: kvm-...@vger.kernel.org; kvm@vger.kernel.org; linuxppc-
> > d...@lists.ozlabs.org
On Tue, 2014-06-17 at 14:42 -0500, Caraman Mihai Claudiu-B02008 wrote:
> > > -static DEFINE_PER_CPU(struct kvm_vcpu *, last_vcpu_on_cpu);
> > > +static DEFINE_PER_CPU(struct kvm_vcpu * [KVMPPC_NR_LPIDS],
> > last_vcpu_on_cpu);
> >
> > Hmm, I didn't know you could express types like that. Is this
= 0; j < ENTRIES; j++)
> bar = foo[j][0];
>
> return 0;
> }
>
> Signed-off-by: Mihai Caraman
> Cc: Scott Wood
> ---
> v3:
> - use existing logic while keeping last_vcpu_per_cpu per lpid
>
> v2:
> - improve patch name and desc
On Tue, 2014-06-17 at 14:04 -0500, Caraman Mihai Claudiu-B02008 wrote:
> > -Original Message-
> > From: Wood Scott-B07421
> > Sent: Tuesday, June 17, 2014 6:36 PM
> > To: Caraman Mihai Claudiu-B02008
> > Cc: kvm-...@vger.kernel.org; kvm@vger.kernel.org; linuxppc-
> > d...@lists.ozlabs.org
>
On Thu, 2014-06-12 at 19:04 +0200, Alexander Graf wrote:
> On 06/12/2014 04:00 PM, Mihai Caraman wrote:
> > @@ -140,12 +142,24 @@ static void kvmppc_core_vcpu_load_e500mc(struct
> > kvm_vcpu *vcpu, int cpu)
> > mtspr(SPRN_GDEAR, vcpu->arch.shared->dar);
> > mtspr(SPRN_GESR, vcpu->arch.shar
On Tue, 2014-06-17 at 12:02 +0300, Mihai Caraman wrote:
> On vcpu schedule, the condition checked for tlb pollution is too loose.
> The tlb entries of a vcpu become polluted (vs stale) only when a different
> vcpu within the same logical partition runs in-between. Optimize the tlb
> invalidation co
On Thu, 2014-06-12 at 18:04 +0200, Alexander Graf wrote:
> On 06/02/2014 05:50 PM, Mihai Caraman wrote:
> > On book3e, KVM uses load external pid (lwepx) dedicated instruction to read
> > guest last instruction on the exit path. lwepx exceptions (DTLB_MISS, DSI
> > and LRAT), generated by loading a
On Fri, 2014-06-13 at 16:55 +0200, Alexander Graf wrote:
> On 13.06.14 16:43, mihai.cara...@freescale.com wrote:
> >> -Original Message-
> >> From: Alexander Graf [mailto:ag...@suse.de]
> >> Sent: Thursday, June 12, 2014 8:05 PM
> >> To: Caraman Mihai Claudiu-B02008
> >> Cc: kvm-...@vger.ke
On Fri, 2014-05-02 at 13:10 +0200, Alexander Graf wrote:
> On 05/02/2014 12:12 PM, David Laight wrote:
> > You also probably want the page mapped uncached - no point polluting the
> > data
> > cache.
We can't do that without creating an architecturally illegal alias
between cacheable and non-cach
On Tue, 2014-04-01 at 07:47 +0200, Alexander Graf wrote:
>
> > Am 01.04.2014 um 01:03 schrieb Scott Wood :
> >
> >> On Mon, 2014-03-31 at 15:41 +0200, Alexander Graf wrote:
> >>> On 03/26/2014 10:17 PM, Scott Wood wrote:
> >>>> On
On Mon, 2014-03-31 at 15:41 +0200, Alexander Graf wrote:
> On 03/26/2014 10:17 PM, Scott Wood wrote:
> > On Thu, 2014-02-20 at 18:30 +0200, Mihai Caraman wrote:
> >> + /*
> >> + * Another thread may rewrite the TLB entry in parallel, don't
> >> +
On Thu, 2014-02-20 at 18:30 +0200, Mihai Caraman wrote:
> Load external pid (lwepx) instruction faults (when called from
> KVM with guest context) needs to be handled by KVM. This implies
> additional code in DO_KVM macro to identify the source of the
> exception (which oiginate from KVM host rathe
On Thu, 2014-02-20 at 18:30 +0200, Mihai Caraman wrote:
> diff --git a/arch/powerpc/kvm/book3s_paired_singles.c
> b/arch/powerpc/kvm/book3s_paired_singles.c
> index a59a25a..80c533e 100644
> --- a/arch/powerpc/kvm/book3s_paired_singles.c
> +++ b/arch/powerpc/kvm/book3s_paired_singles.c
> @@ -640,1
memslots() in real
> [PATCH 7/8] KVM: PPC: Book3S HV: Fix decrementer timeouts with
> [PATCH 8/8] KVM: PPC: Book3S HV: Save/restore host PMU registers that
Acked-by: Scott Wood
-Scott
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roblems for other architectures or other PPC platforms.
>
> The patches are against the master branch of the kvm tree but should
> apply equally on Linus' current master branch.
>
> Scott, please ack.
>
> Paolo, I meant to get these out earlier, but a personal emerg
On Mon, 2014-02-10 at 15:45 -0700, Alex Williamson wrote:
> On Sat, 2014-02-08 at 18:29 +0100, Antonios Motakis wrote:
> > VFIO returns a file descriptor which we can use to manipulate the memory
> > regions of the device. Since some memory regions we cannot mmap due to
> > security concerns, we al
On Sat, 2014-01-25 at 03:15 +0100, Alexander Graf wrote:
> Ok, let's go through the combinations for a 32-bit write of 0x01020304 on PPC
> and what data[] looks like
>
> your proposal:
>
> BE guest, BE host: { 0x01, 0x02, 0x03, 0x04 }
> LE guest, BE host: { 0x04, 0x03, 0x02, 0x01 }
> BE gu
On Fri, 2014-01-24 at 17:56 -0800, Christoffer Dall wrote:
> On Sat, Jan 25, 2014 at 12:24:08AM +, Peter Maydell wrote:
> > Finally, I think it's a bit confusing in that "as if the guest had
> > accessed memory" is assigning implicit semantics to memory
> > in the emulated system, when memory i
On Sat, 2014-01-25 at 00:24 +, Peter Maydell wrote:
> On 24 January 2014 23:51, Scott Wood wrote:
> > On Fri, 2014-01-24 at 15:39 -0800, Christoffer Dall wrote:
> >> diff --git a/Documentation/virtual/kvm/api.txt
> >> b/Documentation/virtual/kvm/api.txt
> &g
On Fri, 2014-01-24 at 15:39 -0800, Christoffer Dall wrote:
> The KVM API documentation is not clear about the semantics of the data
> field on the mmio struct on the kvm_run struct.
>
> This has become problematic when supporting ARM guests on big-endian
> host systems with guests of both endianne
caller do it. Also
move the IRQ enabling on heavyweight exit into
kvmppc_prepare_to_enter().
Signed-off-by: Scott Wood
---
v2:
- rebased
- removed redundant (on 64-bit) and possibly performance-affecting WARNs
- addressed cosmetic feedback
arch/powerpc/include/asm/kvm_ppc.h | 6 ++
arch
Commit 7940876e1330671708186ac3386aa521ffb5c182 ("kvm: make local
functions static") broke KVM PPC builds due to removing (rather than
moving) the stub version of kvm_vcpu_eligible_for_directed_yield().
This patch reintroduces it.
Signed-off-by: Scott Wood
Cc: Stephen Hemminger
Cc:
On Sun, 2013-12-29 at 16:43 +0100, Alexander Graf wrote:
> On 11.07.2013, at 00:47, Scott Wood wrote:
> > diff --git a/arch/powerpc/kvm/book3s_pr.c b/arch/powerpc/kvm/book3s_pr.c
> > index ddfaf56..c13caa0 100644
> > --- a/arch/powerpc/kvm/book3s_pr.c
> > +++ b/a
On Thu, 2013-12-19 at 12:44 -0800, Greg Kroah-Hartman wrote:
> On Thu, Dec 19, 2013 at 02:29:21PM -0600, Scott Wood wrote:
> > On Wed, 2013-12-18 at 17:03 -0800, Greg Kroah-Hartman wrote:
> > > On Tue, Dec 03, 2013 at 12:34:54PM +, Kim Phillips wrote:
> > >
On Thu, 2013-12-19 at 13:43 -0800, Greg Kroah-Hartman wrote:
> On Thu, Dec 19, 2013 at 09:06:21PM +, Stuart Yoder wrote:
> >
> >
> > > -Original Message-
> > > From: Greg Kroah-Hartman [mailto:gre...@linuxfoundation.org]
> > > Sent: Thursday, December 19, 2013 2:34 PM
> > > To: Wood S
On Wed, 2013-12-18 at 17:03 -0800, Greg Kroah-Hartman wrote:
> On Tue, Dec 03, 2013 at 12:34:54PM +, Kim Phillips wrote:
> > Platform drivers such as the vfio-platform "meta-" driver [1]
> > should be allowed to specify that they can bind to any device,
> > much like PCI drivers can with PCI_AN
On Wed, 2013-12-18 at 17:07 -0800, Greg Kroah-Hartman wrote:
> On Tue, Dec 03, 2013 at 12:34:46PM +, Kim Phillips wrote:
> > VFIO supports pass-through of devices to user space - for sake
> > of illustration, say a PCI e1000 device:
> >
> > - the e1000 is first unbound from the PCI e1000 drive
On Fri, 2013-12-13 at 14:02 +1100, Alexey Kardashevskiy wrote:
> On 12/13/2013 10:35 AM, Scott Wood wrote:
> > On Tue, May 21, 2013 at 01:33:09PM +1000, Alexey Kardashevskiy wrote:
> >> +static int iommu_add_device(struct device *dev)
> >> +{
> >> + struct i
On Tue, May 21, 2013 at 01:33:09PM +1000, Alexey Kardashevskiy wrote:
> +static int iommu_add_device(struct device *dev)
> +{
> + struct iommu_table *tbl;
> + int ret = 0;
> +
> + if (WARN_ON(dev->iommu_group)) {
> + pr_warn("iommu_tce: device %s is already in iommu group %d
On Tue, 2013-12-10 at 03:05 +0100, Alexander Graf wrote:
> On 09.12.2013, at 22:18, Scott Wood wrote:
>
> > On Mon, 2013-11-25 at 04:26 -0600, Bharat Bhushan wrote:
> >>
> >>> -Original Message-
> >>> From: Wood Scott-B07421
> >&g
On Mon, 2013-12-09 at 20:12 +0100, Jan Kiszka wrote:
> On 2013-12-09 19:58, Kim Phillips wrote:
> > On Thu, 5 Dec 2013 16:38:15 -0600
> > Scott Wood wrote:
> >
> >> What would combining them solve, other than making it more likely that
> >> Greg complains
warnings being treated as errors
> > arch/powerpc/kvm/booke.c: In function 'kvmppc_vcpu_run':
> > arch/powerpc/kvm/booke.c:760:1: error: the frame size of 1424 bytes is
> > larger
> > than 1024 bytes
> > make[2]: *** [arch/powerpc/kvm/booke.o] Error 1
On Thu, 2013-12-05 at 17:45 +, Kim Phillips wrote:
> On Tue, 03 Dec 2013 16:34:33 +0100
> Jan Kiszka wrote:
>
> > On 2013-12-03 13:34, Kim Phillips wrote:
> > > VFIO supports pass-through of devices to user space - for sake
> > > of illustration, say a PCI e1000 device:
> > >
> > > - the e10
ke.o] Error 1
make[1]: *** [arch/powerpc/kvm] Error 2
make[1]: *** Waiting for unfinished jobs
Signed-off-by: Scott Wood
Cc: Bharat Bhushan
---
Build tested only. Bharat, please test.
arch/powerpc/include/asm/switch_to.h | 2 +-
arch/powerpc/kernel/process.c| 32 --
On Tue, 2013-11-19 at 10:51 +0100, Alexander Graf wrote:
>
> Am 19.11.2013 um 00:49 schrieb Scott Wood :
>
> > On Mon, 2013-11-18 at 16:09 -0500, Alexander Graf wrote:
> >> On 18.11.2013, at 03:34, “tiejun.chen” wrote:
> >>
> >>> On 10/23/2013 09:2
On Mon, 2013-11-18 at 16:09 -0500, Alexander Graf wrote:
> On 18.11.2013, at 03:34, “tiejun.chen” wrote:
>
> > On 10/23/2013 09:26 AM, Tiejun Chen wrote:
> >> We enter with interrupts disabled in hardware, but we need to
> >> call RECONCILE_IRQ_STATE anyway to ensure that the software state
> >>
v_rm_mmu.c |8 +++--
> arch/powerpc/kvm/booke.c|1 +
> arch/powerpc/kvm/e500.h |8 +++--
> arch/powerpc/kvm/e500_mmu_host.c| 55 +++++++---
> 6 files changed, 64 insertions(+), 31 deletions(-)
Reviewed-by: Scott Wood wit
On Fri, 2013-11-15 at 11:01 +0530, Bharat Bhushan wrote:
> @@ -440,9 +437,9 @@ static inline int kvmppc_e500_shadow_map(struct
> kvmppc_vcpu_e500 *vcpu_e500,
> }
>
> if (likely(!pfnmap)) {
> - unsigned long tsize_pages = 1 << (tsize + 10 - PAGE_SHIFT);
> + tsi
On Mon, 2013-10-28 at 15:52 +0530, Bharat Bhushan wrote:
> We need to search linux "pte" to get "pte" attributes for
> setting TLB in KVM.
> This patch defines a linux_pte_lookup() function for same.
>
> Signed-off-by: Bharat Bhushan
> ---
> v1->v2
> -- removed _PAGE_BUSY and _PAGE_PRESENT as su
On Mon, 2013-11-04 at 07:56 +1100, Benjamin Herrenschmidt wrote:
> On Sun, 2013-11-03 at 16:30 +0200, Gleb Natapov wrote:
> > On Thu, Oct 31, 2013 at 10:18:19PM +0100, Alexander Graf wrote:
> > > From: Bharat Bhushan
> > >
> > > This way we can use same data type struct with KVM and
> > > also he
On Mon, 2013-10-28 at 23:45 -0500, Bhushan Bharat-R65777 wrote:
>
> > -Original Message-
> > From: Wood Scott-B07421
> > Sent: Tuesday, October 29, 2013 10:05 AM
> > To: Bhushan Bharat-R65777
> > Cc: Wood Scott-B07421; Alex Williamson; Kim Phillips; Yoder Stuart-B08248;
> > christoffer.d..
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