From: Paul Mackerras <paulus@samba.org>
To: Alexander Graf <agraf@suse.de>
Cc: kvm@vger.kernel.org, kvm-ppc@vger.kernel.org
Subject: [PATCH 04/18] KVM: PPC: Book3S HV: Flush the correct number of TLB sets on POWER8
Date: Wed, 8 Jan 2014 21:25:22 +1100 [thread overview]
Message-ID: <1389176736-26821-5-git-send-email-paulus@samba.org> (raw)
In-Reply-To: <1389176736-26821-1-git-send-email-paulus@samba.org>
POWER8 has 512 sets in the TLB, compared to 128 for POWER7, so we need
to do more tlbiel instructions when flushing the TLB on POWER8.
Signed-off-by: Paul Mackerras <paulus@samba.org>
---
arch/powerpc/kvm/book3s_hv_rmhandlers.S | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/arch/powerpc/kvm/book3s_hv_rmhandlers.S b/arch/powerpc/kvm/book3s_hv_rmhandlers.S
index 01943d3..c0a5d8a 100644
--- a/arch/powerpc/kvm/book3s_hv_rmhandlers.S
+++ b/arch/powerpc/kvm/book3s_hv_rmhandlers.S
@@ -433,7 +433,13 @@ END_FTR_SECTION_IFSET(CPU_FTR_ARCH_201)
andc r7,r7,r0
stdcx. r7,0,r6
bne 23b
- li r6,128 /* and flush the TLB */
+ /* Flush the TLB of any entries for this LPID */
+ /* use arch 2.07S as a proxy for POWER8 */
+BEGIN_FTR_SECTION
+ li r6,512 /* POWER8 has 512 sets */
+FTR_SECTION_ELSE
+ li r6,128 /* POWER7 has 128 sets */
+ALT_FTR_SECTION_END_IFSET(CPU_FTR_ARCH_207S)
mtctr r6
li r7,0x800 /* IS field = 0b10 */
ptesync
--
1.8.5.2
WARNING: multiple messages have this Message-ID (diff)
From: Paul Mackerras <paulus@samba.org>
To: Alexander Graf <agraf@suse.de>
Cc: kvm@vger.kernel.org, kvm-ppc@vger.kernel.org
Subject: [PATCH 04/18] KVM: PPC: Book3S HV: Flush the correct number of TLB sets on POWER8
Date: Wed, 08 Jan 2014 10:25:22 +0000 [thread overview]
Message-ID: <1389176736-26821-5-git-send-email-paulus@samba.org> (raw)
In-Reply-To: <1389176736-26821-1-git-send-email-paulus@samba.org>
POWER8 has 512 sets in the TLB, compared to 128 for POWER7, so we need
to do more tlbiel instructions when flushing the TLB on POWER8.
Signed-off-by: Paul Mackerras <paulus@samba.org>
---
arch/powerpc/kvm/book3s_hv_rmhandlers.S | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/arch/powerpc/kvm/book3s_hv_rmhandlers.S b/arch/powerpc/kvm/book3s_hv_rmhandlers.S
index 01943d3..c0a5d8a 100644
--- a/arch/powerpc/kvm/book3s_hv_rmhandlers.S
+++ b/arch/powerpc/kvm/book3s_hv_rmhandlers.S
@@ -433,7 +433,13 @@ END_FTR_SECTION_IFSET(CPU_FTR_ARCH_201)
andc r7,r7,r0
stdcx. r7,0,r6
bne 23b
- li r6,128 /* and flush the TLB */
+ /* Flush the TLB of any entries for this LPID */
+ /* use arch 2.07S as a proxy for POWER8 */
+BEGIN_FTR_SECTION
+ li r6,512 /* POWER8 has 512 sets */
+FTR_SECTION_ELSE
+ li r6,128 /* POWER7 has 128 sets */
+ALT_FTR_SECTION_END_IFSET(CPU_FTR_ARCH_207S)
mtctr r6
li r7,0x800 /* IS field = 0b10 */
ptesync
--
1.8.5.2
next prev parent reply other threads:[~2014-01-08 10:25 UTC|newest]
Thread overview: 48+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-01-08 10:25 [PATCH 00/18] KVM: PPC: Book3S HV: POWER8 support Paul Mackerras
2014-01-08 10:25 ` Paul Mackerras
2014-01-08 10:25 ` [PATCH 01/18] KVM: PPC: Book3S HV: Don't set DABR on POWER8 Paul Mackerras
2014-01-08 10:25 ` Paul Mackerras
2014-01-08 10:25 ` [PATCH 02/18] KVM: PPC: Book3S HV: Align physical and virtual CPU thread numbers Paul Mackerras
2014-01-08 10:25 ` Paul Mackerras
2014-01-08 10:25 ` [PATCH 03/18] KVM: PPC: Book3S HV: Context-switch new POWER8 SPRs Paul Mackerras
2014-01-08 10:25 ` Paul Mackerras
2014-01-08 10:25 ` Paul Mackerras [this message]
2014-01-08 10:25 ` [PATCH 04/18] KVM: PPC: Book3S HV: Flush the correct number of TLB sets on POWER8 Paul Mackerras
2014-01-08 10:25 ` [PATCH 05/18] KVM: PPC: Book3S HV: Add handler for HV facility unavailable Paul Mackerras
2014-01-08 10:25 ` Paul Mackerras
2014-01-08 10:25 ` [PATCH 06/18] KVM: PPC: Book3S HV: Implement architecture compatibility modes for POWER8 Paul Mackerras
2014-01-08 10:25 ` Paul Mackerras
2014-01-08 10:25 ` [PATCH 07/18] KVM: PPC: Book3S HV: Consolidate code that checks reason for wake from nap Paul Mackerras
2014-01-08 10:25 ` Paul Mackerras
2014-01-27 11:16 ` Alexander Graf
2014-01-27 11:16 ` Alexander Graf
2014-01-08 10:25 ` [PATCH 08/18] KVM: PPC: Book3S HV: Handle guest using doorbells for IPIs Paul Mackerras
2014-01-08 10:25 ` Paul Mackerras
2014-01-08 10:25 ` [PATCH 09/18] KVM: PPC: Book3S HV: Handle new LPCR bits on POWER8 Paul Mackerras
2014-01-08 10:25 ` Paul Mackerras
2014-01-08 10:25 ` [PATCH 10/18] KVM: PPC: Book3S HV: Prepare for host using hypervisor doorbells Paul Mackerras
2014-01-08 10:25 ` Paul Mackerras
2014-01-08 10:25 ` [PATCH 11/18] KVM: PPC: Book3S HV: Add support for DABRX register on POWER7 Paul Mackerras
2014-01-08 10:25 ` Paul Mackerras
2014-01-08 10:25 ` [PATCH 12/18] KVM: PPC: Book3S HV: Basic little-endian guest support Paul Mackerras
2014-01-08 10:25 ` Paul Mackerras
2014-01-08 10:25 ` [PATCH 13/18] powerpc/Kconfig: Make TM select VSX and VMX Paul Mackerras
2014-01-08 10:25 ` Paul Mackerras
2014-01-08 10:25 ` [PATCH 14/18] KVM: PPC: Book3S HV: Add new state for transactional memory Paul Mackerras
2014-01-08 10:25 ` Paul Mackerras
2014-01-27 12:23 ` Alexander Graf
2014-01-27 12:23 ` Alexander Graf
2014-01-08 10:25 ` [PATCH 15/18] KVM: PPC: Book3S HV: Add software abort codes " Paul Mackerras
2014-01-08 10:25 ` Paul Mackerras
2014-01-08 10:25 ` [PATCH 16/18] KVM: PPC: Book3S HV: Add transactional memory support Paul Mackerras
2014-01-08 10:25 ` Paul Mackerras
2014-01-27 12:47 ` Alexander Graf
2014-01-27 12:47 ` Alexander Graf
2014-03-24 1:18 ` Paul Mackerras
2014-03-24 1:18 ` Paul Mackerras
2014-01-08 10:25 ` [PATCH 17/18] KVM: PPC: Book3S HV: Add get/set_one_reg for new TM state Paul Mackerras
2014-01-08 10:25 ` Paul Mackerras
2014-01-08 10:25 ` [PATCH 18/18] KVM: PPC: Book3S PR: Cope with doorbell interrupts Paul Mackerras
2014-01-08 10:25 ` Paul Mackerras
2014-01-27 12:50 ` [PATCH 00/18] KVM: PPC: Book3S HV: POWER8 support Alexander Graf
2014-01-27 12:50 ` Alexander Graf
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