From: Paul Mackerras <paulus@ozlabs.org>
To: linuxppc-dev@ozlabs.org, kvm@vger.kernel.org, kvm-ppc@vger.kernel.org
Subject: [PATCH v2 19/20] KVM: PPC: Book3S HV: Invalidate ERAT on guest entry/exit for POWER9 DD1
Date: Mon, 30 Jan 2017 21:21:52 +1100 [thread overview]
Message-ID: <1485771713-24801-20-git-send-email-paulus@ozlabs.org> (raw)
In-Reply-To: <1485771713-24801-1-git-send-email-paulus@ozlabs.org>
On POWER9 DD1, we need to invalidate the ERAT (effective to real
address translation cache) when changing the PIDR register, which
we do as part of guest entry and exit.
Signed-off-by: Paul Mackerras <paulus@ozlabs.org>
---
arch/powerpc/kvm/book3s_hv_rmhandlers.S | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/arch/powerpc/kvm/book3s_hv_rmhandlers.S b/arch/powerpc/kvm/book3s_hv_rmhandlers.S
index ab390bc..f8da957 100644
--- a/arch/powerpc/kvm/book3s_hv_rmhandlers.S
+++ b/arch/powerpc/kvm/book3s_hv_rmhandlers.S
@@ -877,6 +877,9 @@ END_FTR_SECTION_IFCLR(CPU_FTR_ARCH_207S)
mtspr SPRN_PID, r7
mtspr SPRN_WORT, r8
BEGIN_FTR_SECTION
+ PPC_INVALIDATE_ERAT
+END_FTR_SECTION_IFSET(CPU_FTR_POWER9_DD1)
+BEGIN_FTR_SECTION
/* POWER8-only registers */
ld r5, VCPU_TCSCR(r4)
ld r6, VCPU_ACOP(r4)
@@ -1612,6 +1615,9 @@ BEGIN_FTR_SECTION
mtspr SPRN_PSSCR, r6
mtspr SPRN_PID, r7
END_FTR_SECTION_IFSET(CPU_FTR_ARCH_300)
+BEGIN_FTR_SECTION
+ PPC_INVALIDATE_ERAT
+END_FTR_SECTION_IFSET(CPU_FTR_POWER9_DD1)
/*
* POWER7/POWER8 guest -> host partition switch code.
--
2.7.4
next prev parent reply other threads:[~2017-01-30 10:22 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-01-30 10:21 [PATCH v2 00/20] Support for radix guest and host on POWER9 Paul Mackerras
2017-01-30 10:21 ` [PATCH v2 01/20] powerpc/64: Don't try to use radix MMU under a hypervisor Paul Mackerras
2017-01-30 10:21 ` [PATCH v2 02/20] powerpc/pseries: Fixes for the "ibm, architecture-vec-5" options Paul Mackerras
2017-01-30 10:21 ` [PATCH v2 03/20] powerpc/64: Enable use of radix MMU under hypervisor on POWER9 Paul Mackerras
2017-01-30 21:16 ` Michael Ellerman
2017-01-30 10:21 ` [PATCH v2 04/20] powerpc/64: More definitions for POWER9 Paul Mackerras
2017-01-30 10:21 ` [PATCH v2 05/20] powerpc/64: Export pgtable_cache and pgtable_cache_add for KVM Paul Mackerras
2017-01-30 10:21 ` [PATCH v2 06/20] powerpc/64: Make type of partition table flush depend on partition type Paul Mackerras
2017-01-30 10:21 ` [PATCH v2 07/20] powerpc/64: Allow for relocation-on interrupts from guest to host Paul Mackerras
2017-01-30 10:21 ` [PATCH v2 08/20] KVM: PPC: Book3S HV: Add userspace interfaces for POWER9 MMU Paul Mackerras
2017-01-30 10:21 ` [PATCH v2 09/20] KVM: PPC: Book3S HV: Set process table for HPT guests on POWER9 Paul Mackerras
2017-01-30 10:21 ` [PATCH v2 10/20] KVM: PPC: Book3S HV: Use ASDR " Paul Mackerras
2017-01-30 10:21 ` [PATCH v2 11/20] KVM: PPC: Book3S HV: Add basic infrastructure for radix guests Paul Mackerras
2017-01-30 10:21 ` [PATCH v2 12/20] KVM: PPC: Book3S HV: Modify guest entry/exit paths to handle " Paul Mackerras
2017-01-30 10:21 ` [PATCH v2 13/20] KVM: PPC: Book3S HV: Page table construction and page faults for " Paul Mackerras
2017-01-30 20:58 ` Michael Ellerman
2017-01-30 21:05 ` Paul Mackerras
2017-01-30 10:21 ` [PATCH v2 14/20] KVM: PPC: Book3S HV: MMU notifier callbacks " Paul Mackerras
2017-01-30 10:21 ` [PATCH v2 15/20] KVM: PPC: Book3S HV: Implement dirty page logging " Paul Mackerras
2017-01-30 10:21 ` [PATCH v2 16/20] KVM: PPC: Book3S HV: Make HPT-specific hypercalls return error in radix mode Paul Mackerras
2017-01-30 10:21 ` [PATCH v2 17/20] KVM: PPC: Book3S HV: Invalidate TLB on radix guest vcpu movement Paul Mackerras
2017-01-30 10:21 ` [PATCH v2 18/20] KVM: PPC: Book3S HV: Allow guest exit path to have MMU on Paul Mackerras
2017-01-30 10:21 ` Paul Mackerras [this message]
2017-01-30 10:21 ` [PATCH v2 20/20] KVM: PPC: Book3S HV: Enable radix guest support Paul Mackerras
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