From: Nikunj A Dadhania <nikunj@linux.vnet.ibm.com>
To: qemu-ppc@nongnu.org, david@gibson.dropbear.id.au,
benh@kernel.crashing.org
Cc: alex.bennee@linaro.org, qemu-devel@nongnu.org, rth@twiddle.net,
nikunj@linux.vnet.ibm.com
Subject: [Qemu-devel] [PATCH v3 0/3] ppc: Broadcast tlb flush should have global effect
Date: Mon, 12 Sep 2016 11:18:31 +0530 [thread overview]
Message-ID: <1473659314-11813-1-git-send-email-nikunj@linux.vnet.ibm.com> (raw)
PowerPC targets should do tlb invalidation on other cpus on
instructions that expect a global effect.
* ptesync for BookS
* tlbsync primarily for BookE
(for BookS make it a nop, as it always come along with ptesync)
* tlbivax for other ppc tragets
* H_REMOVE, H_BULK_REMOVE and H_PROTECT hcalls in case of pseries
The implementation provides a single point that can be used in MTTCG for
doing async-flushes.
The patchset introduces bit-flags in CPUPPCState::tlb_need_flush:
TLB_NEED_LOCAL_FLUSH (0x1) - Flush local tlb
TLB_NEED_GLOBAL_FLUSH (0x2) - Flush tlb on other cpus.
Nikunj A Dadhania (3):
target-ppc: add TLB_NEED_LOCAL_FLUSH flag
target-ppc: add flag in chech_tlb_flush()
target-ppc: tlbie should have global effect
hw/ppc/spapr_hcall.c | 6 ++++--
target-ppc/cpu.h | 2 ++
target-ppc/excp_helper.c | 4 ++--
target-ppc/helper.h | 2 +-
target-ppc/helper_regs.h | 25 +++++++++++++++++++++----
target-ppc/mmu-hash64.c | 6 +++---
target-ppc/mmu_helper.c | 20 ++++++++++++--------
target-ppc/translate.c | 26 ++++++++++++++++----------
8 files changed, 61 insertions(+), 30 deletions(-)
--
2.7.4
next reply other threads:[~2016-09-12 5:48 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-09-12 5:48 Nikunj A Dadhania [this message]
2016-09-12 5:48 ` [Qemu-devel] [PATCH v3 1/3] target-ppc: add TLB_NEED_LOCAL_FLUSH flag Nikunj A Dadhania
2016-09-12 5:48 ` [Qemu-devel] [PATCH v3 2/3] target-ppc: add flag in chech_tlb_flush() Nikunj A Dadhania
2016-09-14 3:09 ` David Gibson
2016-09-14 3:49 ` Benjamin Herrenschmidt
2016-09-14 3:53 ` Nikunj A Dadhania
2016-09-14 4:37 ` Benjamin Herrenschmidt
2016-09-14 5:09 ` Nikunj A Dadhania
2016-09-14 5:18 ` David Gibson
2016-09-12 5:48 ` [Qemu-devel] [PATCH v3 3/3] target-ppc: tlbie should have global effect Nikunj A Dadhania
2016-09-12 6:08 ` Benjamin Herrenschmidt
2016-09-12 6:15 ` Nikunj A Dadhania
2016-09-12 6:21 ` Nikunj A Dadhania
2016-09-12 6:05 ` [Qemu-devel] [PATCH v3 0/3] ppc: Broadcast tlb flush " Benjamin Herrenschmidt
2016-09-12 6:16 ` Nikunj A Dadhania
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