From: Marc Zyngier <maz@kernel.org>
To: linux-arm-kernel@lists.infradead.org,
kvmarm@lists.cs.columbia.edu, kvm@vger.kernel.org
Cc: Andre Przywara <andre.przywara@arm.com>,
Christoffer Dall <christoffer.dall@arm.com>,
Jintack Lim <jintack@cs.columbia.edu>,
Haibo Xu <haibo.xu@linaro.org>,
Ganapatrao Kulkarni <gankulkarni@os.amperecomputing.com>,
Chase Conklin <chase.conklin@arm.com>,
"Russell King (Oracle)" <linux@armlinux.org.uk>,
James Morse <james.morse@arm.com>,
Suzuki K Poulose <suzuki.poulose@arm.com>,
Alexandru Elisei <alexandru.elisei@arm.com>,
karl.heubaum@oracle.com, mihai.carabas@oracle.com,
miguel.luis@oracle.com, kernel-team@android.com
Subject: [PATCH v6 30/64] KVM: arm64: nv: Configure HCR_EL2 for nested virtualization
Date: Fri, 28 Jan 2022 12:18:38 +0000 [thread overview]
Message-ID: <20220128121912.509006-31-maz@kernel.org> (raw)
In-Reply-To: <20220128121912.509006-1-maz@kernel.org>
From: Jintack Lim <jintack.lim@linaro.org>
We enable nested virtualization by setting the HCR NV and NV1 bit.
When the virtual E2H bit is set, we can support EL2 register accesses
via EL1 registers from the virtual EL2 by doing trap-and-emulate. A
better alternative, however, is to allow the virtual EL2 to access EL2
register states without trap. This can be easily achieved by not traping
EL1 registers since those registers already have EL2 register states.
Signed-off-by: Jintack Lim <jintack.lim@linaro.org>
Signed-off-by: Marc Zyngier <maz@kernel.org>
---
arch/arm64/include/asm/kvm_arm.h | 1 +
arch/arm64/kvm/hyp/vhe/switch.c | 38 +++++++++++++++++++++++++++++---
2 files changed, 36 insertions(+), 3 deletions(-)
diff --git a/arch/arm64/include/asm/kvm_arm.h b/arch/arm64/include/asm/kvm_arm.h
index 748c2b068d4e..d913c3fb5665 100644
--- a/arch/arm64/include/asm/kvm_arm.h
+++ b/arch/arm64/include/asm/kvm_arm.h
@@ -87,6 +87,7 @@
HCR_BSU_IS | HCR_FB | HCR_TACR | \
HCR_AMO | HCR_SWIO | HCR_TIDCP | HCR_RW | HCR_TLOR | \
HCR_FMO | HCR_IMO | HCR_PTW )
+#define HCR_GUEST_NV_FILTER_FLAGS (HCR_ATA | HCR_API | HCR_APK)
#define HCR_VIRT_EXCP_MASK (HCR_VSE | HCR_VI | HCR_VF)
#define HCR_HOST_NVHE_FLAGS (HCR_RW | HCR_API | HCR_APK | HCR_ATA)
#define HCR_HOST_NVHE_PROTECTED_FLAGS (HCR_HOST_NVHE_FLAGS | HCR_TSC)
diff --git a/arch/arm64/kvm/hyp/vhe/switch.c b/arch/arm64/kvm/hyp/vhe/switch.c
index 1e6a00e7bfb3..28845f907cfc 100644
--- a/arch/arm64/kvm/hyp/vhe/switch.c
+++ b/arch/arm64/kvm/hyp/vhe/switch.c
@@ -35,9 +35,41 @@ static void __activate_traps(struct kvm_vcpu *vcpu)
u64 hcr = vcpu->arch.hcr_el2;
u64 val;
- /* Trap VM sysreg accesses if an EL2 guest is not using VHE. */
- if (vcpu_is_el2(vcpu) && !vcpu_el2_e2h_is_set(vcpu))
- hcr |= HCR_TVM | HCR_TRVM;
+ if (is_hyp_ctxt(vcpu)) {
+ hcr |= HCR_NV;
+
+ if (!vcpu_el2_e2h_is_set(vcpu)) {
+ /*
+ * For a guest hypervisor on v8.0, trap and emulate
+ * the EL1 virtual memory control register accesses.
+ */
+ hcr |= HCR_TVM | HCR_TRVM | HCR_NV1;
+ } else {
+ /*
+ * For a guest hypervisor on v8.1 (VHE), allow to
+ * access the EL1 virtual memory control registers
+ * natively. These accesses are to access EL2 register
+ * states.
+ * Note that we still need to respect the virtual
+ * HCR_EL2 state.
+ */
+ u64 vhcr_el2 = __vcpu_sys_reg(vcpu, HCR_EL2);
+
+ vhcr_el2 &= ~HCR_GUEST_NV_FILTER_FLAGS;
+
+ /*
+ * We already set TVM to handle set/way cache maint
+ * ops traps, this somewhat collides with the nested
+ * virt trapping for nVHE. So turn this off for now
+ * here, in the hope that VHE guests won't ever do this.
+ * TODO: find out whether it's worth to support both
+ * cases at the same time.
+ */
+ hcr &= ~HCR_TVM;
+
+ hcr |= vhcr_el2 & (HCR_TVM | HCR_TRVM);
+ }
+ }
___activate_traps(vcpu, hcr);
--
2.30.2
WARNING: multiple messages have this Message-ID (diff)
From: Marc Zyngier <maz@kernel.org>
To: linux-arm-kernel@lists.infradead.org,
kvmarm@lists.cs.columbia.edu, kvm@vger.kernel.org
Cc: kernel-team@android.com, Andre Przywara <andre.przywara@arm.com>,
Christoffer Dall <christoffer.dall@arm.com>,
Chase Conklin <chase.conklin@arm.com>,
"Russell King \(Oracle\)" <linux@armlinux.org.uk>,
mihai.carabas@oracle.com,
Ganapatrao Kulkarni <gankulkarni@os.amperecomputing.com>
Subject: [PATCH v6 30/64] KVM: arm64: nv: Configure HCR_EL2 for nested virtualization
Date: Fri, 28 Jan 2022 12:18:38 +0000 [thread overview]
Message-ID: <20220128121912.509006-31-maz@kernel.org> (raw)
In-Reply-To: <20220128121912.509006-1-maz@kernel.org>
From: Jintack Lim <jintack.lim@linaro.org>
We enable nested virtualization by setting the HCR NV and NV1 bit.
When the virtual E2H bit is set, we can support EL2 register accesses
via EL1 registers from the virtual EL2 by doing trap-and-emulate. A
better alternative, however, is to allow the virtual EL2 to access EL2
register states without trap. This can be easily achieved by not traping
EL1 registers since those registers already have EL2 register states.
Signed-off-by: Jintack Lim <jintack.lim@linaro.org>
Signed-off-by: Marc Zyngier <maz@kernel.org>
---
arch/arm64/include/asm/kvm_arm.h | 1 +
arch/arm64/kvm/hyp/vhe/switch.c | 38 +++++++++++++++++++++++++++++---
2 files changed, 36 insertions(+), 3 deletions(-)
diff --git a/arch/arm64/include/asm/kvm_arm.h b/arch/arm64/include/asm/kvm_arm.h
index 748c2b068d4e..d913c3fb5665 100644
--- a/arch/arm64/include/asm/kvm_arm.h
+++ b/arch/arm64/include/asm/kvm_arm.h
@@ -87,6 +87,7 @@
HCR_BSU_IS | HCR_FB | HCR_TACR | \
HCR_AMO | HCR_SWIO | HCR_TIDCP | HCR_RW | HCR_TLOR | \
HCR_FMO | HCR_IMO | HCR_PTW )
+#define HCR_GUEST_NV_FILTER_FLAGS (HCR_ATA | HCR_API | HCR_APK)
#define HCR_VIRT_EXCP_MASK (HCR_VSE | HCR_VI | HCR_VF)
#define HCR_HOST_NVHE_FLAGS (HCR_RW | HCR_API | HCR_APK | HCR_ATA)
#define HCR_HOST_NVHE_PROTECTED_FLAGS (HCR_HOST_NVHE_FLAGS | HCR_TSC)
diff --git a/arch/arm64/kvm/hyp/vhe/switch.c b/arch/arm64/kvm/hyp/vhe/switch.c
index 1e6a00e7bfb3..28845f907cfc 100644
--- a/arch/arm64/kvm/hyp/vhe/switch.c
+++ b/arch/arm64/kvm/hyp/vhe/switch.c
@@ -35,9 +35,41 @@ static void __activate_traps(struct kvm_vcpu *vcpu)
u64 hcr = vcpu->arch.hcr_el2;
u64 val;
- /* Trap VM sysreg accesses if an EL2 guest is not using VHE. */
- if (vcpu_is_el2(vcpu) && !vcpu_el2_e2h_is_set(vcpu))
- hcr |= HCR_TVM | HCR_TRVM;
+ if (is_hyp_ctxt(vcpu)) {
+ hcr |= HCR_NV;
+
+ if (!vcpu_el2_e2h_is_set(vcpu)) {
+ /*
+ * For a guest hypervisor on v8.0, trap and emulate
+ * the EL1 virtual memory control register accesses.
+ */
+ hcr |= HCR_TVM | HCR_TRVM | HCR_NV1;
+ } else {
+ /*
+ * For a guest hypervisor on v8.1 (VHE), allow to
+ * access the EL1 virtual memory control registers
+ * natively. These accesses are to access EL2 register
+ * states.
+ * Note that we still need to respect the virtual
+ * HCR_EL2 state.
+ */
+ u64 vhcr_el2 = __vcpu_sys_reg(vcpu, HCR_EL2);
+
+ vhcr_el2 &= ~HCR_GUEST_NV_FILTER_FLAGS;
+
+ /*
+ * We already set TVM to handle set/way cache maint
+ * ops traps, this somewhat collides with the nested
+ * virt trapping for nVHE. So turn this off for now
+ * here, in the hope that VHE guests won't ever do this.
+ * TODO: find out whether it's worth to support both
+ * cases at the same time.
+ */
+ hcr &= ~HCR_TVM;
+
+ hcr |= vhcr_el2 & (HCR_TVM | HCR_TRVM);
+ }
+ }
___activate_traps(vcpu, hcr);
--
2.30.2
_______________________________________________
kvmarm mailing list
kvmarm@lists.cs.columbia.edu
https://lists.cs.columbia.edu/mailman/listinfo/kvmarm
WARNING: multiple messages have this Message-ID (diff)
From: Marc Zyngier <maz@kernel.org>
To: linux-arm-kernel@lists.infradead.org,
kvmarm@lists.cs.columbia.edu, kvm@vger.kernel.org
Cc: Andre Przywara <andre.przywara@arm.com>,
Christoffer Dall <christoffer.dall@arm.com>,
Jintack Lim <jintack@cs.columbia.edu>,
Haibo Xu <haibo.xu@linaro.org>,
Ganapatrao Kulkarni <gankulkarni@os.amperecomputing.com>,
Chase Conklin <chase.conklin@arm.com>,
"Russell King (Oracle)" <linux@armlinux.org.uk>,
James Morse <james.morse@arm.com>,
Suzuki K Poulose <suzuki.poulose@arm.com>,
Alexandru Elisei <alexandru.elisei@arm.com>,
karl.heubaum@oracle.com, mihai.carabas@oracle.com,
miguel.luis@oracle.com, kernel-team@android.com
Subject: [PATCH v6 30/64] KVM: arm64: nv: Configure HCR_EL2 for nested virtualization
Date: Fri, 28 Jan 2022 12:18:38 +0000 [thread overview]
Message-ID: <20220128121912.509006-31-maz@kernel.org> (raw)
In-Reply-To: <20220128121912.509006-1-maz@kernel.org>
From: Jintack Lim <jintack.lim@linaro.org>
We enable nested virtualization by setting the HCR NV and NV1 bit.
When the virtual E2H bit is set, we can support EL2 register accesses
via EL1 registers from the virtual EL2 by doing trap-and-emulate. A
better alternative, however, is to allow the virtual EL2 to access EL2
register states without trap. This can be easily achieved by not traping
EL1 registers since those registers already have EL2 register states.
Signed-off-by: Jintack Lim <jintack.lim@linaro.org>
Signed-off-by: Marc Zyngier <maz@kernel.org>
---
arch/arm64/include/asm/kvm_arm.h | 1 +
arch/arm64/kvm/hyp/vhe/switch.c | 38 +++++++++++++++++++++++++++++---
2 files changed, 36 insertions(+), 3 deletions(-)
diff --git a/arch/arm64/include/asm/kvm_arm.h b/arch/arm64/include/asm/kvm_arm.h
index 748c2b068d4e..d913c3fb5665 100644
--- a/arch/arm64/include/asm/kvm_arm.h
+++ b/arch/arm64/include/asm/kvm_arm.h
@@ -87,6 +87,7 @@
HCR_BSU_IS | HCR_FB | HCR_TACR | \
HCR_AMO | HCR_SWIO | HCR_TIDCP | HCR_RW | HCR_TLOR | \
HCR_FMO | HCR_IMO | HCR_PTW )
+#define HCR_GUEST_NV_FILTER_FLAGS (HCR_ATA | HCR_API | HCR_APK)
#define HCR_VIRT_EXCP_MASK (HCR_VSE | HCR_VI | HCR_VF)
#define HCR_HOST_NVHE_FLAGS (HCR_RW | HCR_API | HCR_APK | HCR_ATA)
#define HCR_HOST_NVHE_PROTECTED_FLAGS (HCR_HOST_NVHE_FLAGS | HCR_TSC)
diff --git a/arch/arm64/kvm/hyp/vhe/switch.c b/arch/arm64/kvm/hyp/vhe/switch.c
index 1e6a00e7bfb3..28845f907cfc 100644
--- a/arch/arm64/kvm/hyp/vhe/switch.c
+++ b/arch/arm64/kvm/hyp/vhe/switch.c
@@ -35,9 +35,41 @@ static void __activate_traps(struct kvm_vcpu *vcpu)
u64 hcr = vcpu->arch.hcr_el2;
u64 val;
- /* Trap VM sysreg accesses if an EL2 guest is not using VHE. */
- if (vcpu_is_el2(vcpu) && !vcpu_el2_e2h_is_set(vcpu))
- hcr |= HCR_TVM | HCR_TRVM;
+ if (is_hyp_ctxt(vcpu)) {
+ hcr |= HCR_NV;
+
+ if (!vcpu_el2_e2h_is_set(vcpu)) {
+ /*
+ * For a guest hypervisor on v8.0, trap and emulate
+ * the EL1 virtual memory control register accesses.
+ */
+ hcr |= HCR_TVM | HCR_TRVM | HCR_NV1;
+ } else {
+ /*
+ * For a guest hypervisor on v8.1 (VHE), allow to
+ * access the EL1 virtual memory control registers
+ * natively. These accesses are to access EL2 register
+ * states.
+ * Note that we still need to respect the virtual
+ * HCR_EL2 state.
+ */
+ u64 vhcr_el2 = __vcpu_sys_reg(vcpu, HCR_EL2);
+
+ vhcr_el2 &= ~HCR_GUEST_NV_FILTER_FLAGS;
+
+ /*
+ * We already set TVM to handle set/way cache maint
+ * ops traps, this somewhat collides with the nested
+ * virt trapping for nVHE. So turn this off for now
+ * here, in the hope that VHE guests won't ever do this.
+ * TODO: find out whether it's worth to support both
+ * cases at the same time.
+ */
+ hcr &= ~HCR_TVM;
+
+ hcr |= vhcr_el2 & (HCR_TVM | HCR_TRVM);
+ }
+ }
___activate_traps(vcpu, hcr);
--
2.30.2
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next prev parent reply other threads:[~2022-01-28 12:51 UTC|newest]
Thread overview: 378+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-01-28 12:18 [PATCH v6 00/64] KVM: arm64: ARMv8.3/8.4 Nested Virtualization support Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-01-28 12:18 ` [PATCH v6 01/64] arm64: Add ARM64_HAS_NESTED_VIRT cpufeature Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-02-01 14:22 ` Russell King (Oracle)
2022-02-01 14:22 ` Russell King (Oracle)
2022-02-01 14:22 ` Russell King (Oracle)
2022-01-28 12:18 ` [PATCH v6 02/64] KVM: arm64: nv: Introduce nested virtualization VCPU feature Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-01-28 12:18 ` [PATCH v6 03/64] KVM: arm64: nv: Reset VCPU to EL2 registers if VCPU nested virt is set Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-02-02 11:40 ` Alexandru Elisei
2022-02-02 11:40 ` Alexandru Elisei
2022-02-02 11:40 ` Alexandru Elisei
2022-01-28 12:18 ` [PATCH v6 04/64] KVM: arm64: nv: Allow userspace to set PSR_MODE_EL2x Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-02-02 11:53 ` Alexandru Elisei
2022-02-02 11:53 ` Alexandru Elisei
2022-02-02 11:53 ` Alexandru Elisei
2022-01-28 12:18 ` [PATCH v6 05/64] KVM: arm64: nv: Add EL2 system registers to vcpu context Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-02-11 16:35 ` Miguel Luis
2022-02-11 16:35 ` Miguel Luis
2022-02-11 16:35 ` Miguel Luis
2022-01-28 12:18 ` [PATCH v6 06/64] KVM: arm64: nv: Add nested virt VCPU primitives for vEL2 VCPU state Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-02-02 12:10 ` Alexandru Elisei
2022-02-02 12:10 ` Alexandru Elisei
2022-02-02 12:10 ` Alexandru Elisei
2022-02-14 12:39 ` Miguel Luis
2022-02-14 12:39 ` Miguel Luis
2022-02-14 12:39 ` Miguel Luis
2022-02-14 14:20 ` Marc Zyngier
2022-02-14 14:20 ` Marc Zyngier
2022-02-14 14:20 ` Marc Zyngier
2022-01-28 12:18 ` [PATCH v6 07/64] KVM: arm64: nv: Handle HCR_EL2.NV system register traps Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-02-01 14:32 ` Russell King (Oracle)
2022-02-01 14:32 ` Russell King (Oracle)
2022-02-01 14:32 ` Russell King (Oracle)
2022-01-28 12:18 ` [PATCH v6 08/64] KVM: arm64: nv: Reset VMPIDR_EL2 and VPIDR_EL2 to sane values Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-01-28 12:18 ` [PATCH v6 09/64] KVM: arm64: nv: Support virtual EL2 exceptions Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-02-02 15:23 ` Alexandru Elisei
2022-02-02 15:23 ` Alexandru Elisei
2022-02-02 15:23 ` Alexandru Elisei
2022-02-03 17:43 ` Marc Zyngier
2022-02-03 17:43 ` Marc Zyngier
2022-02-03 17:43 ` Marc Zyngier
2022-02-04 11:47 ` Alexandru Elisei
2022-02-04 11:47 ` Alexandru Elisei
2022-02-04 11:47 ` Alexandru Elisei
2022-01-28 12:18 ` [PATCH v6 10/64] KVM: arm64: nv: Inject HVC exceptions to the virtual EL2 Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-01-28 12:18 ` [PATCH v6 11/64] KVM: arm64: nv: Handle trapped ERET from " Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-01-28 12:18 ` [PATCH v6 12/64] KVM: arm64: nv: Add non-VHE-EL2->EL1 translation helpers Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-02-01 16:37 ` Russell King (Oracle)
2022-02-01 16:37 ` Russell King (Oracle)
2022-02-01 16:37 ` Russell King (Oracle)
2022-02-02 17:08 ` Alexandru Elisei
2022-02-02 17:08 ` Alexandru Elisei
2022-02-02 17:08 ` Alexandru Elisei
2022-02-03 18:29 ` Marc Zyngier
2022-02-03 18:29 ` Marc Zyngier
2022-02-03 18:29 ` Marc Zyngier
2022-02-04 12:05 ` Alexandru Elisei
2022-02-04 12:05 ` Alexandru Elisei
2022-02-04 12:05 ` Alexandru Elisei
2022-01-28 12:18 ` [PATCH v6 13/64] KVM: arm64: nv: Handle virtual EL2 registers in vcpu_read/write_sys_reg() Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-02-01 16:40 ` Russell King (Oracle)
2022-02-01 16:40 ` Russell King (Oracle)
2022-02-01 16:40 ` Russell King (Oracle)
2022-01-28 12:18 ` [PATCH v6 14/64] KVM: arm64: nv: Handle SPSR_EL2 specially Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-02-01 16:43 ` Russell King (Oracle)
2022-02-01 16:43 ` Russell King (Oracle)
2022-02-01 16:43 ` Russell King (Oracle)
2022-01-28 12:18 ` [PATCH v6 15/64] KVM: arm64: nv: Handle HCR_EL2.E2H specially Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-02-01 16:51 ` Russell King (Oracle)
2022-02-01 16:51 ` Russell King (Oracle)
2022-02-01 16:51 ` Russell King (Oracle)
2022-02-01 18:17 ` Marc Zyngier
2022-02-01 18:17 ` Marc Zyngier
2022-02-01 18:17 ` Marc Zyngier
2022-01-28 12:18 ` [PATCH v6 16/64] KVM: arm64: nv: Save/Restore vEL2 sysregs Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-02-03 15:14 ` Alexandru Elisei
2022-02-03 15:14 ` Alexandru Elisei
2022-02-03 15:14 ` Alexandru Elisei
2022-01-28 12:18 ` [PATCH v6 17/64] KVM: arm64: nv: Emulate PSTATE.M for a guest hypervisor Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-02-01 18:06 ` Russell King (Oracle)
2022-02-01 18:06 ` Russell King (Oracle)
2022-02-01 18:06 ` Russell King (Oracle)
2022-02-03 15:53 ` Alexandru Elisei
2022-02-03 15:53 ` Alexandru Elisei
2022-02-03 15:53 ` Alexandru Elisei
2022-01-28 12:18 ` [PATCH v6 18/64] KVM: arm64: nv: Trap EL1 VM register accesses in virtual EL2 Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-02-01 18:08 ` Russell King (Oracle)
2022-02-01 18:08 ` Russell King (Oracle)
2022-02-01 18:08 ` Russell King (Oracle)
2022-02-03 17:11 ` Alexandru Elisei
2022-02-03 17:11 ` Alexandru Elisei
2022-02-03 17:11 ` Alexandru Elisei
2022-01-28 12:18 ` [PATCH v6 19/64] KVM: arm64: nv: Trap SPSR_EL1, ELR_EL1 and VBAR_EL1 from " Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-02-01 18:13 ` Russell King (Oracle)
2022-02-01 18:13 ` Russell King (Oracle)
2022-02-01 18:13 ` Russell King (Oracle)
2022-02-03 17:27 ` Alexandru Elisei
2022-02-03 17:27 ` Alexandru Elisei
2022-02-03 17:27 ` Alexandru Elisei
2022-02-04 10:58 ` Alexandru Elisei
2022-02-04 10:58 ` Alexandru Elisei
2022-02-04 10:58 ` Alexandru Elisei
2022-01-28 12:18 ` [PATCH v6 20/64] KVM: arm64: nv: Trap CPACR_EL1 access in " Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-02-04 11:10 ` Alexandru Elisei
2022-02-04 11:10 ` Alexandru Elisei
2022-02-04 11:10 ` Alexandru Elisei
2022-01-28 12:18 ` [PATCH v6 21/64] KVM: arm64: nv: Handle PSCI call via smc from the guest Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-02-04 14:02 ` Alexandru Elisei
2022-02-04 14:02 ` Alexandru Elisei
2022-02-04 14:02 ` Alexandru Elisei
2022-01-28 12:18 ` [PATCH v6 22/64] KVM: arm64: nv: Respect virtual HCR_EL2.TWX setting Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-02-04 15:40 ` Alexandru Elisei
2022-02-04 15:40 ` Alexandru Elisei
2022-02-04 15:40 ` Alexandru Elisei
2022-02-04 16:01 ` Alexandru Elisei
2022-02-04 16:01 ` Alexandru Elisei
2022-02-04 16:01 ` Alexandru Elisei
2022-02-07 15:38 ` Alexandru Elisei
2022-02-07 15:38 ` Alexandru Elisei
2022-02-07 15:38 ` Alexandru Elisei
2022-01-28 12:18 ` [PATCH v6 23/64] KVM: arm64: nv: Respect virtual CPTR_EL2.{TFP,FPEN} settings Marc Zyngier
2022-01-28 12:18 ` [PATCH v6 23/64] KVM: arm64: nv: Respect virtual CPTR_EL2.{TFP, FPEN} settings Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-01-28 12:18 ` [PATCH v6 24/64] KVM: arm64: nv: Respect the virtual HCR_EL2.NV bit setting Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-02-07 15:33 ` Alexandru Elisei
2022-02-07 15:33 ` Alexandru Elisei
2022-02-07 15:33 ` Alexandru Elisei
2022-01-28 12:18 ` [PATCH v6 25/64] KVM: arm64: nv: Respect virtual HCR_EL2.TVM and TRVM settings Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-02-07 16:18 ` Alexandru Elisei
2022-02-07 16:18 ` Alexandru Elisei
2022-02-07 16:18 ` Alexandru Elisei
2022-01-28 12:18 ` [PATCH v6 26/64] KVM: arm64: nv: Respect the virtual HCR_EL2.NV1 bit setting Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-02-07 16:36 ` Alexandru Elisei
2022-02-07 16:36 ` Alexandru Elisei
2022-02-07 16:36 ` Alexandru Elisei
2022-01-28 12:18 ` [PATCH v6 27/64] KVM: arm64: nv: Allow a sysreg to be hidden from userspace only Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-02-08 14:36 ` Alexandru Elisei
2022-02-08 14:36 ` Alexandru Elisei
2022-02-08 14:36 ` Alexandru Elisei
2022-01-28 12:18 ` [PATCH v6 28/64] KVM: arm64: nv: Emulate EL12 register accesses from the virtual EL2 Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-02-08 15:35 ` Alexandru Elisei
2022-02-08 15:35 ` Alexandru Elisei
2022-02-08 15:35 ` Alexandru Elisei
2022-01-28 12:18 ` [PATCH v6 29/64] KVM: arm64: nv: Forward debug traps to the nested guest Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-02-09 11:04 ` Alexandru Elisei
2022-02-09 11:04 ` Alexandru Elisei
2022-02-09 11:04 ` Alexandru Elisei
2022-01-28 12:18 ` Marc Zyngier [this message]
2022-01-28 12:18 ` [PATCH v6 30/64] KVM: arm64: nv: Configure HCR_EL2 for nested virtualization Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-02-09 16:41 ` Alexandru Elisei
2022-02-09 16:41 ` Alexandru Elisei
2022-02-09 16:41 ` Alexandru Elisei
2022-01-28 12:18 ` [PATCH v6 31/64] KVM: arm64: nv: Only toggle cache for virtual EL2 when SCTLR_EL2 changes Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-02-09 16:56 ` Alexandru Elisei
2022-02-09 16:56 ` Alexandru Elisei
2022-02-09 16:56 ` Alexandru Elisei
2022-01-28 12:18 ` [PATCH v6 32/64] KVM: arm64: nv: Filter out unsupported features from ID regs Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-02-09 17:33 ` Alexandru Elisei
2022-02-09 17:33 ` Alexandru Elisei
2022-02-09 17:33 ` Alexandru Elisei
2022-01-28 12:18 ` [PATCH v6 33/64] KVM: arm64: nv: Hide RAS from nested guests Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-01-28 12:18 ` [PATCH v6 34/64] KVM: arm64: nv: Support multiple nested Stage-2 mmu structures Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-02-16 16:12 ` Alexandru Elisei
2022-02-16 16:12 ` Alexandru Elisei
2022-02-16 16:12 ` Alexandru Elisei
2022-02-24 14:25 ` Alexandru Elisei
2022-02-24 14:25 ` Alexandru Elisei
2022-02-24 14:25 ` Alexandru Elisei
2022-01-28 12:18 ` [PATCH v6 35/64] KVM: arm64: nv: Implement nested Stage-2 page table walk logic Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-01-28 12:18 ` [PATCH v6 36/64] KVM: arm64: nv: Handle shadow stage 2 page faults Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-02-17 15:23 ` Alexandru Elisei
2022-02-17 15:23 ` Alexandru Elisei
2022-02-17 15:23 ` Alexandru Elisei
2022-01-28 12:18 ` [PATCH v6 37/64] KVM: arm64: nv: Restrict S2 RD/WR permissions to match the guest's Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-02-17 16:29 ` Alexandru Elisei
2022-02-17 16:29 ` Alexandru Elisei
2022-02-17 16:29 ` Alexandru Elisei
2022-01-28 12:18 ` [PATCH v6 38/64] KVM: arm64: nv: Unmap/flush shadow stage 2 page tables Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-02-22 16:13 ` Alexandru Elisei
2022-02-22 16:13 ` Alexandru Elisei
2022-02-22 16:13 ` Alexandru Elisei
2022-01-28 12:18 ` [PATCH v6 39/64] KVM: arm64: nv: Set a handler for the system instruction traps Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-02-24 11:59 ` Alexandru Elisei
2022-02-24 11:59 ` Alexandru Elisei
2022-02-24 11:59 ` Alexandru Elisei
2022-01-28 12:18 ` [PATCH v6 40/64] KVM: arm64: nv: Trap and emulate AT instructions from virtual EL2 Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-02-24 15:39 ` Alexandru Elisei
2022-02-24 15:39 ` Alexandru Elisei
2022-02-24 15:39 ` Alexandru Elisei
2022-01-28 12:18 ` [PATCH v6 41/64] KVM: arm64: nv: Trap and emulate TLBI " Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-02-24 15:56 ` Alexandru Elisei
2022-02-24 15:56 ` Alexandru Elisei
2022-02-24 15:56 ` Alexandru Elisei
2022-01-28 12:18 ` [PATCH v6 42/64] KVM: arm64: nv: Fold guest's HCR_EL2 configuration into the host's Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-02-25 13:45 ` Alexandru Elisei
2022-02-25 13:45 ` Alexandru Elisei
2022-02-25 13:45 ` Alexandru Elisei
2022-01-28 12:18 ` [PATCH v6 43/64] KVM: arm64: nv: arch_timer: Support hyp timer emulation Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-03-07 14:52 ` Alexandru Elisei
2022-03-07 14:52 ` Alexandru Elisei
2022-03-07 14:52 ` Alexandru Elisei
2022-03-07 15:48 ` Marc Zyngier
2022-03-07 15:48 ` Marc Zyngier
2022-03-07 15:48 ` Marc Zyngier
2022-03-07 16:28 ` Alexandru Elisei
2022-03-07 16:28 ` Alexandru Elisei
2022-03-07 16:28 ` Alexandru Elisei
2022-03-07 16:52 ` Marc Zyngier
2022-03-07 16:52 ` Marc Zyngier
2022-03-07 16:52 ` Marc Zyngier
2022-03-07 17:13 ` Alexandru Elisei
2022-03-07 17:13 ` Alexandru Elisei
2022-03-07 17:13 ` Alexandru Elisei
2022-03-07 15:23 ` Alexandru Elisei
2022-03-07 15:23 ` Alexandru Elisei
2022-03-07 15:23 ` Alexandru Elisei
2022-03-07 15:44 ` Marc Zyngier
2022-03-07 15:44 ` Marc Zyngier
2022-03-07 15:44 ` Marc Zyngier
2022-03-07 16:24 ` Alexandru Elisei
2022-03-07 16:24 ` Alexandru Elisei
2022-03-07 16:24 ` Alexandru Elisei
2022-03-07 16:40 ` Marc Zyngier
2022-03-07 16:40 ` Marc Zyngier
2022-03-07 16:40 ` Marc Zyngier
2022-01-28 12:18 ` [PATCH v6 44/64] KVM: arm64: nv: Add handling of EL2-specific timer registers Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-03-07 16:01 ` Alexandru Elisei
2022-03-07 16:01 ` Alexandru Elisei
2022-03-07 16:01 ` Alexandru Elisei
2022-01-28 12:18 ` [PATCH v6 45/64] KVM: arm64: nv: Load timer before the GIC Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-01-28 12:18 ` [PATCH v6 46/64] KVM: arm64: nv: Nested GICv3 Support Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-01-28 12:18 ` [PATCH v6 47/64] KVM: arm64: nv: Don't load the GICv4 context on entering a nested guest Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-01-28 12:18 ` [PATCH v6 48/64] KVM: arm64: nv: vgic: Emulate the HW bit in software Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-01-28 12:18 ` [PATCH v6 49/64] KVM: arm64: nv: vgic: Allow userland to set VGIC maintenance IRQ Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-01-28 12:18 ` [PATCH v6 50/64] KVM: arm64: nv: Implement maintenance interrupt forwarding Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-01-28 12:18 ` [PATCH v6 51/64] KVM: arm64: nv: Add nested GICv3 tracepoints Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-01-28 12:18 ` Marc Zyngier
2022-01-28 12:19 ` [PATCH v6 52/64] KVM: arm64: nv: Allow userspace to request KVM_ARM_VCPU_NESTED_VIRT Marc Zyngier
2022-01-28 12:19 ` Marc Zyngier
2022-01-28 12:19 ` Marc Zyngier
2022-01-28 12:19 ` [PATCH v6 53/64] KVM: arm64: nv: Add handling of ARMv8.4-TTL TLB invalidation Marc Zyngier
2022-01-28 12:19 ` Marc Zyngier
2022-01-28 12:19 ` Marc Zyngier
2022-01-28 12:19 ` [PATCH v6 54/64] KVM: arm64: nv: Invalidate TLBs based on shadow S2 TTL-like information Marc Zyngier
2022-01-28 12:19 ` Marc Zyngier
2022-01-28 12:19 ` Marc Zyngier
2022-01-28 12:19 ` [PATCH v6 55/64] KVM: arm64: nv: Tag shadow S2 entries with nested level Marc Zyngier
2022-01-28 12:19 ` Marc Zyngier
2022-01-28 12:19 ` Marc Zyngier
2022-01-28 12:19 ` [PATCH v6 56/64] KVM: arm64: nv: Add include containing the VNCR_EL2 offsets Marc Zyngier
2022-01-28 12:19 ` Marc Zyngier
2022-01-28 12:19 ` Marc Zyngier
2022-01-28 12:19 ` [PATCH v6 57/64] KVM: arm64: nv: Map VNCR-capable registers to a separate page Marc Zyngier
2022-01-28 12:19 ` Marc Zyngier
2022-01-28 12:19 ` Marc Zyngier
2022-01-28 12:19 ` [PATCH v6 58/64] KVM: arm64: nv: Move nested vgic state into the sysreg file Marc Zyngier
2022-01-28 12:19 ` Marc Zyngier
2022-01-28 12:19 ` Marc Zyngier
2022-01-28 12:19 ` [PATCH v6 59/64] KVM: arm64: Add ARMv8.4 Enhanced Nested Virt cpufeature Marc Zyngier
2022-01-28 12:19 ` Marc Zyngier
2022-01-28 12:19 ` Marc Zyngier
2022-01-28 12:19 ` [PATCH v6 60/64] KVM: arm64: nv: Sync nested timer state with ARMv8.4 Marc Zyngier
2022-01-28 12:19 ` Marc Zyngier
2022-01-28 12:19 ` Marc Zyngier
2022-04-01 17:51 ` Chase Conklin
2022-04-01 17:51 ` Chase Conklin
2022-04-01 17:51 ` Chase Conklin
2022-01-28 12:19 ` [PATCH v6 61/64] KVM: arm64: nv: Allocate VNCR page when required Marc Zyngier
2022-01-28 12:19 ` Marc Zyngier
2022-01-28 12:19 ` Marc Zyngier
2022-01-28 12:19 ` [PATCH v6 62/64] KVM: arm64: nv: Enable ARMv8.4-NV support Marc Zyngier
2022-01-28 12:19 ` Marc Zyngier
2022-01-28 12:19 ` Marc Zyngier
2022-01-28 12:19 ` [PATCH v6 63/64] KVM: arm64: nv: Fast-track 'InHost' exception returns Marc Zyngier
2022-01-28 12:19 ` Marc Zyngier
2022-01-28 12:19 ` Marc Zyngier
2022-01-28 12:19 ` [PATCH v6 64/64] KVM: arm64: nv: Fast-track EL1 TLBIs for VHE guests Marc Zyngier
2022-01-28 12:19 ` Marc Zyngier
2022-01-28 12:19 ` Marc Zyngier
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