From: Benjamin Herrenschmidt <benh@au1.ibm.com>
To: "Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com>,
Michael Ellerman <mpe@ellerman.id.au>,
Nicholas Piggin <npiggin@gmail.com>,
linuxppc-dev@lists.ozlabs.org
Cc: Suraj Jitindar Singh <surajjs@ozlabs.au.ibm.com>,
kvm-ppc@vger.kernel.org
Subject: Re: [PATCH v2 3/9] powerpc/powernv: Remove real mode access limit for early allocations
Date: Tue, 12 Sep 2017 20:26:07 +1000 [thread overview]
Message-ID: <1505211967.12628.126.camel@au1.ibm.com> (raw)
In-Reply-To: <87wp54usvj.fsf@linux.vnet.ibm.com>
On Tue, 2017-09-12 at 15:43 +0530, Aneesh Kumar K.V wrote:
> Yes. I added the limit to radix after I observed that we have MSR[SF] =
> 0.
>
> IIRC it was PACA access that was causing it to crash on return from RTAS.
>
> hmm the commit also explains that.
>
> powerpc/mm/radix: Limit paca allocation in radix
>
> On return from RTAS we access the paca variables and we have 64 bit
> disabled. This requires us to limit paca in 32 bit range.
>
> Fix this by setting ppc64_rma_size to first_memblock_size/1G range.
That should be fixable with better use of temporaries...
Ben.
next prev parent reply other threads:[~2017-09-12 10:26 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-08-12 11:34 [PATCH v2 0/9] improve early structure allocations (paca, lppaca, etc) Nicholas Piggin
2017-08-13 1:33 ` [PATCH v2 1/9] KVM: PPC: Book3S HV: Fix H_REGISTER_VPA VPA size validation Nicholas Piggin
2017-08-15 11:24 ` Michael Ellerman
2017-08-31 3:41 ` Paul Mackerras
2017-08-13 1:33 ` [PATCH v2 2/9] powerpc/powernv: powernv platform is not constrained by RMA Nicholas Piggin
2017-08-31 11:36 ` [v2, " Michael Ellerman
2017-08-13 1:33 ` [PATCH v2 3/9] powerpc/powernv: Remove real mode access limit for early allocations Nicholas Piggin
2017-08-14 12:49 ` Michael Ellerman
2017-08-14 13:10 ` Benjamin Herrenschmidt
2017-08-14 14:51 ` Nicholas Piggin
2017-08-14 13:13 ` Benjamin Herrenschmidt
2017-08-15 12:10 ` Nicholas Piggin
2017-08-15 12:48 ` Benjamin Herrenschmidt
2017-08-15 13:02 ` Nicholas Piggin
2017-09-12 10:13 ` Aneesh Kumar K.V
2017-09-12 10:26 ` Benjamin Herrenschmidt [this message]
2017-08-13 1:33 ` [PATCH v2 4/9] powerpc/64s/radix: Remove bolted-SLB address limit for per-cpu stacks Nicholas Piggin
2017-08-31 11:36 ` [v2, " Michael Ellerman
2017-08-13 1:33 ` [PATCH v2 5/9] powerpc/64s: Relax PACA address limitations Nicholas Piggin
2017-08-13 1:33 ` [PATCH v2 6/9] powerpc/64s/radix: Do not allocate SLB shadow structures Nicholas Piggin
2017-08-31 11:36 ` [v2, " Michael Ellerman
2017-08-13 1:33 ` [PATCH v2 7/9] powerpc/64s: do not allocate lppaca if we are not virtualized Nicholas Piggin
2017-10-13 22:47 ` Paul Mackerras
2017-10-14 3:54 ` Nicholas Piggin
2017-08-13 1:33 ` [PATCH v2 8/9] powerpc/64: Use a table of paca pointers and allocate pacas individually Nicholas Piggin
2017-08-15 15:50 ` Nicholas Piggin
2017-08-15 17:30 ` kbuild test robot
2017-08-13 1:33 ` [PATCH v2 9/9] powerpc/64: Use a table of lppaca pointers and allocate lppacas individually Nicholas Piggin
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