Modifications are aimed specifically at the e500mc/e5500 cpu setup code.
Following modifications are introduced by this patchset:
1. Move the E.HV check to the cpu setup code. Based on this check we manipulte the
CPU_FTR_EMB_HV flag (added as a part of e500mc KVM support) in the cpu_spec
structure. We determine the presence of this feature based on the MMUCFG[LPIDSIZE]
check and decide if we can setup the E.HV mode ivors.
2. Merge the 32 bit cpu setup code for e500mc/e5500 and define the "cpu_restore"
routine (for e5500/e6500) only for the 64 bit case. The cpu_restore routine
is used in the 64 bit case for setting up the secondary cores.
3. For the 64 bit case separate out e5500 cpu_setup and cpu_restore functions.
The cpu_setup function (for the primary core) is passed the cpu_spec pointer,
which is not there in case of the cpu_restore function. Also, in our case
we will have to manipulate the CPU_FTR_EMB_HV flag on the the primary core.
4. Added CPU_FTR_EMB_HV check for e5500.
Varun Sethi (4):
Separate out E.HV check and ivor setup code.
Merge the PPC 32 e5500 setup code with e500mc setup and don't define
a restore routine for PPC 32.
Separate out restore_e5500/setup_e5500 routines and check for E.HV
mode before setting ivor setting code.
Add CPU_FTR_EMB_HV check for e5500.
arch/powerpc/kernel/cpu_setup_fsl_booke.S | 74 +++++++++++++++++++++++++----
arch/powerpc/kernel/cputable.c | 4 ++
arch/powerpc/kernel/exceptions-64e.S | 18 +------
arch/powerpc/kernel/head_fsl_booke.S | 18 ++-----
4 files changed, 75 insertions(+), 39 deletions(-)
--
1.7.4.1
Hi Kumar,
Can you please review this patch set.
Regards
Varun
-----Original Message-----
From: Sethi Varun-B16395
Sent: Monday, July 09, 2012 6:23 PM
To: agraf@suse.de; galak@kernel.crashing.org; benh@kernel.crashing.org;
linuxppc-dev@lists.ozlabs.org; kvm-ppc@vger.kernel.org
Cc: Sethi Varun-B16395
Subject: [PATCH 0/4] powerpc/booke: Modifications to fsl booke cpu setup
code
=20
Modifications are aimed specifically at the e500mc/e5500 cpu setup code.
Following modifications are introduced by this patchset:
1. Move the E.HV check to the cpu setup code. Based on this check we
manipulte the
CPU_FTR_EMB_HV flag (added as a part of e500mc KVM support) in the
cpu_spec
structure. We determine the presence of this feature based on the
MMUCFG[LPIDSIZE]
check and decide if we can setup the E.HV mode ivors.
2. Merge the 32 bit cpu setup code for e500mc/e5500 and define the
"cpu_restore"
routine (for e5500/e6500) only for the 64 bit case. The cpu_restore
routine
is used in the 64 bit case for setting up the secondary cores.
3. For the 64 bit case separate out e5500 cpu_setup and cpu_restore
functions.
The cpu_setup function (for the primary core) is passed the cpu_spec
pointer,
which is not there in case of the cpu_restore function. Also, in our
case
we will have to manipulate the CPU_FTR_EMB_HV flag on the the primary
core.
4. Added CPU_FTR_EMB_HV check for e5500.
=20
Varun Sethi (4):
Separate out E.HV check and ivor setup code.
Merge the PPC 32 e5500 setup code with e500mc setup and don't define
a restore routine for PPC 32.
Separate out restore_e5500/setup_e5500 routines and check for E.HV
mode before setting ivor setting code.
Add CPU_FTR_EMB_HV check for e5500.
=20
arch/powerpc/kernel/cpu_setup_fsl_booke.S | 74
+++++++++++++++++++++++++----
arch/powerpc/kernel/cputable.c | 4 ++
arch/powerpc/kernel/exceptions-64e.S | 18 +------
arch/powerpc/kernel/head_fsl_booke.S | 18 ++-----
4 files changed, 75 insertions(+), 39 deletions(-)
=20
--
1.7.4.1