From: Nicholas Piggin <npiggin@gmail.com>
To: kvm-ppc@vger.kernel.org
Cc: linuxppc-dev@lists.ozlabs.org, Nicholas Piggin <npiggin@gmail.com>
Subject: [PATCH v7 26/32] KVM: PPC: Book3S HV P9: Allow all P9 processors to enable nested HV
Date: Fri, 28 May 2021 19:07:46 +1000 [thread overview]
Message-ID: <20210528090752.3542186-27-npiggin@gmail.com> (raw)
In-Reply-To: <20210528090752.3542186-1-npiggin@gmail.com>
All radix guests go via the P9 path now, so there is no need to limit
nested HV to processors that support "mixed mode" MMU. Remove the
restriction.
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
---
arch/powerpc/kvm/book3s_hv.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/powerpc/kvm/book3s_hv.c b/arch/powerpc/kvm/book3s_hv.c
index acb0c72ea900..cf403280b199 100644
--- a/arch/powerpc/kvm/book3s_hv.c
+++ b/arch/powerpc/kvm/book3s_hv.c
@@ -5451,7 +5451,7 @@ static int kvmhv_enable_nested(struct kvm *kvm)
{
if (!nested)
return -EPERM;
- if (!cpu_has_feature(CPU_FTR_ARCH_300) || no_mixing_hpt_and_radix)
+ if (!cpu_has_feature(CPU_FTR_ARCH_300))
return -ENODEV;
/* kvm == NULL means the caller is testing if the capability exists */
--
2.23.0
WARNING: multiple messages have this Message-ID (diff)
From: Nicholas Piggin <npiggin@gmail.com>
To: kvm-ppc@vger.kernel.org
Cc: linuxppc-dev@lists.ozlabs.org, Nicholas Piggin <npiggin@gmail.com>
Subject: [PATCH v7 26/32] KVM: PPC: Book3S HV P9: Allow all P9 processors to enable nested HV
Date: Fri, 28 May 2021 09:07:46 +0000 [thread overview]
Message-ID: <20210528090752.3542186-27-npiggin@gmail.com> (raw)
In-Reply-To: <20210528090752.3542186-1-npiggin@gmail.com>
All radix guests go via the P9 path now, so there is no need to limit
nested HV to processors that support "mixed mode" MMU. Remove the
restriction.
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
---
arch/powerpc/kvm/book3s_hv.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/powerpc/kvm/book3s_hv.c b/arch/powerpc/kvm/book3s_hv.c
index acb0c72ea900..cf403280b199 100644
--- a/arch/powerpc/kvm/book3s_hv.c
+++ b/arch/powerpc/kvm/book3s_hv.c
@@ -5451,7 +5451,7 @@ static int kvmhv_enable_nested(struct kvm *kvm)
{
if (!nested)
return -EPERM;
- if (!cpu_has_feature(CPU_FTR_ARCH_300) || no_mixing_hpt_and_radix)
+ if (!cpu_has_feature(CPU_FTR_ARCH_300))
return -ENODEV;
/* kvm = NULL means the caller is testing if the capability exists */
--
2.23.0
next prev parent reply other threads:[~2021-05-28 9:20 UTC|newest]
Thread overview: 72+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-05-28 9:07 [PATCH v7 00/32] KVM: PPC: Book3S: C-ify the P9 entry/exit code Nicholas Piggin
2021-05-28 9:07 ` Nicholas Piggin
2021-05-28 9:07 ` [PATCH v7 01/32] KVM: PPC: Book3S 64: move KVM interrupt entry to a common entry point Nicholas Piggin
2021-05-28 9:07 ` Nicholas Piggin
2021-06-06 12:27 ` Michael Ellerman
2021-06-06 12:27 ` Michael Ellerman
2021-05-28 9:07 ` [PATCH v7 02/32] KVM: PPC: Book3S 64: Move GUEST_MODE_SKIP test into KVM Nicholas Piggin
2021-05-28 9:07 ` Nicholas Piggin
2021-05-28 9:07 ` [PATCH v7 03/32] KVM: PPC: Book3S 64: add hcall interrupt handler Nicholas Piggin
2021-05-28 9:07 ` Nicholas Piggin
2021-05-28 9:07 ` [PATCH v7 04/32] KVM: PPC: Book3S 64: Move hcall early register setup to KVM Nicholas Piggin
2021-05-28 9:07 ` Nicholas Piggin
2021-05-28 9:07 ` [PATCH v7 05/32] KVM: PPC: Book3S 64: Move interrupt " Nicholas Piggin
2021-05-28 9:07 ` Nicholas Piggin
2021-05-28 9:07 ` [PATCH v7 06/32] KVM: PPC: Book3S 64: move bad_host_intr check to HV handler Nicholas Piggin
2021-05-28 9:07 ` Nicholas Piggin
2021-05-28 9:07 ` [PATCH v7 07/32] KVM: PPC: Book3S 64: Minimise hcall handler calling convention differences Nicholas Piggin
2021-05-28 9:07 ` Nicholas Piggin
2021-05-28 9:07 ` [PATCH v7 08/32] KVM: PPC: Book3S HV P9: implement kvmppc_xive_pull_vcpu in C Nicholas Piggin
2021-05-28 9:07 ` Nicholas Piggin
2021-05-28 9:07 ` [PATCH v7 09/32] KVM: PPC: Book3S HV P9: Move setting HDEC after switching to guest LPCR Nicholas Piggin
2021-05-28 9:07 ` Nicholas Piggin
2021-05-28 9:07 ` [PATCH v7 10/32] KVM: PPC: Book3S HV P9: Reduce irq_work vs guest decrementer races Nicholas Piggin
2021-05-28 9:07 ` Nicholas Piggin
2021-05-28 9:07 ` [PATCH v7 11/32] KVM: PPC: Book3S HV P9: Move xive vcpu context management into kvmhv_p9_guest_entry Nicholas Piggin
2021-05-28 9:07 ` Nicholas Piggin
2021-05-28 9:07 ` [PATCH v7 12/32] KVM: PPC: Book3S HV P9: Move radix MMU switching instructions together Nicholas Piggin
2021-05-28 9:07 ` Nicholas Piggin
2021-05-28 9:07 ` [PATCH v7 13/32] KVM: PPC: Book3S HV P9: Stop handling hcalls in real-mode in the P9 path Nicholas Piggin
2021-05-28 9:07 ` Nicholas Piggin
2021-05-28 9:07 ` [PATCH v7 14/32] KVM: PPC: Book3S HV P9: Implement the rest of the P9 path in C Nicholas Piggin
2021-05-28 9:07 ` Nicholas Piggin
2021-05-28 9:07 ` [PATCH v7 15/32] KVM: PPC: Book3S HV P9: inline kvmhv_load_hv_regs_and_go into __kvmhv_vcpu_entry_p9 Nicholas Piggin
2021-05-28 9:07 ` Nicholas Piggin
2021-05-28 9:07 ` [PATCH v7 16/32] KVM: PPC: Book3S HV P9: Read machine check registers while MSR[RI] is 0 Nicholas Piggin
2021-05-28 9:07 ` Nicholas Piggin
2021-05-28 9:07 ` [PATCH v7 17/32] KVM: PPC: Book3S HV P9: Improve exit timing accounting coverage Nicholas Piggin
2021-05-28 9:07 ` Nicholas Piggin
2021-05-28 9:07 ` [PATCH v7 18/32] KVM: PPC: Book3S HV P9: Move SPR loading after expiry time check Nicholas Piggin
2021-05-28 9:07 ` Nicholas Piggin
2021-05-28 9:07 ` [PATCH v7 19/32] KVM: PPC: Book3S HV P9: Add helpers for OS SPR handling Nicholas Piggin
2021-05-28 9:07 ` Nicholas Piggin
2021-05-28 9:07 ` [PATCH v7 20/32] KVM: PPC: Book3S HV P9: Switch to guest MMU context as late as possible Nicholas Piggin
2021-05-28 9:07 ` Nicholas Piggin
2021-05-28 9:07 ` [PATCH v7 21/32] KVM: PPC: Book3S HV: Implement radix prefetch workaround by disabling MMU Nicholas Piggin
2021-05-28 9:07 ` Nicholas Piggin
2021-05-28 9:07 ` [PATCH v7 22/32] KVM: PPC: Book3S HV: Remove support for dependent threads mode on P9 Nicholas Piggin
2021-05-28 9:07 ` Nicholas Piggin
2021-05-28 9:07 ` [PATCH v7 23/32] KVM: PPC: Book3S HV: Remove radix guest support from P7/8 path Nicholas Piggin
2021-05-28 9:07 ` Nicholas Piggin
2021-05-28 9:07 ` [PATCH v7 24/32] KVM: PPC: Book3S HV: Remove virt mode checks from real mode handlers Nicholas Piggin
2021-05-28 9:07 ` Nicholas Piggin
2021-05-28 9:07 ` [PATCH v7 25/32] KVM: PPC: Book3S HV: Remove unused nested HV tests in XICS emulation Nicholas Piggin
2021-05-28 9:07 ` Nicholas Piggin
2021-05-28 9:07 ` Nicholas Piggin [this message]
2021-05-28 9:07 ` [PATCH v7 26/32] KVM: PPC: Book3S HV P9: Allow all P9 processors to enable nested HV Nicholas Piggin
2021-05-28 9:07 ` [PATCH v7 27/32] KVM: PPC: Book3S HV: small pseries_do_hcall cleanup Nicholas Piggin
2021-05-28 9:07 ` Nicholas Piggin
2021-05-28 9:07 ` [PATCH v7 28/32] KVM: PPC: Book3S HV: add virtual mode handlers for HPT hcalls and page faults Nicholas Piggin
2021-05-28 9:07 ` Nicholas Piggin
2021-05-28 9:07 ` [PATCH v7 29/32] KVM: PPC: Book3S HV P9: Reflect userspace hcalls to hash guests to support PR KVM Nicholas Piggin
2021-05-28 9:07 ` Nicholas Piggin
2021-05-28 9:07 ` [PATCH v7 30/32] KVM: PPC: Book3S HV P9: implement hash guest support Nicholas Piggin
2021-05-28 9:07 ` Nicholas Piggin
2021-05-28 9:07 ` [PATCH v7 31/32] KVM: PPC: Book3S HV P9: implement hash host / " Nicholas Piggin
2021-05-28 9:07 ` Nicholas Piggin
2021-05-28 9:07 ` [PATCH v7 32/32] KVM: PPC: Book3S HV: remove ISA v3.0 and v3.1 support from P7/8 path Nicholas Piggin
2021-05-28 9:07 ` Nicholas Piggin
2021-06-24 13:59 ` [PATCH v7 00/32] KVM: PPC: Book3S: C-ify the P9 entry/exit code Michael Ellerman
2021-06-24 13:59 ` Michael Ellerman
-- strict thread matches above, loose matches on Subject: below --
2021-05-28 9:06 Nicholas Piggin
2021-05-28 9:06 ` Nicholas Piggin
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