From: Ganapatrao Kulkarni <gankulkarni@os.amperecomputing.com>
To: Marc Zyngier <maz@kernel.org>,
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>, James Morse <james.morse@arm.com>,
Suzuki K Poulose <suzuki.poulose@arm.com>,
Alexandru Elisei <alexandru.elisei@arm.com>,
kernel-team@android.com
Subject: Re: [PATCH v5 36/69] KVM: arm64: nv: Filter out unsupported features from ID regs
Date: Mon, 20 Dec 2021 12:56:50 +0530 [thread overview]
Message-ID: <e850857c-9cab-8e16-0568-acb513514ae8@os.amperecomputing.com> (raw)
In-Reply-To: <20211129200150.351436-37-maz@kernel.org>
Hi Marc,
On 30-11-2021 01:31 am, Marc Zyngier wrote:
> As there is a number of features that we either can't support,
> or don't want to support right away with NV, let's add some
> basic filtering so that we don't advertize silly things to the
> EL2 guest.
>
> Whilst we are at it, avertize ARMv8.4-TTL as well as ARMv8.5-GTG.
>
> Signed-off-by: Marc Zyngier <maz@kernel.org>
> ---
> arch/arm64/include/asm/kvm_nested.h | 6 ++
> arch/arm64/kvm/nested.c | 152 ++++++++++++++++++++++++++++
> arch/arm64/kvm/sys_regs.c | 4 +-
> arch/arm64/kvm/sys_regs.h | 2 +
> 4 files changed, 163 insertions(+), 1 deletion(-)
>
> diff --git a/arch/arm64/include/asm/kvm_nested.h b/arch/arm64/include/asm/kvm_nested.h
> index 07c15f51cf86..026ddaad972c 100644
> --- a/arch/arm64/include/asm/kvm_nested.h
> +++ b/arch/arm64/include/asm/kvm_nested.h
> @@ -67,4 +67,10 @@ extern bool __forward_traps(struct kvm_vcpu *vcpu, unsigned int reg,
> extern bool forward_traps(struct kvm_vcpu *vcpu, u64 control_bit);
> extern bool forward_nv_traps(struct kvm_vcpu *vcpu);
>
> +struct sys_reg_params;
> +struct sys_reg_desc;
> +
> +void access_nested_id_reg(struct kvm_vcpu *v, struct sys_reg_params *p,
> + const struct sys_reg_desc *r);
> +
> #endif /* __ARM64_KVM_NESTED_H */
> diff --git a/arch/arm64/kvm/nested.c b/arch/arm64/kvm/nested.c
> index 42a96c8d2adc..19b674983e13 100644
> --- a/arch/arm64/kvm/nested.c
> +++ b/arch/arm64/kvm/nested.c
> @@ -20,6 +20,10 @@
> #include <linux/kvm_host.h>
>
> #include <asm/kvm_emulate.h>
> +#include <asm/kvm_nested.h>
> +#include <asm/sysreg.h>
> +
> +#include "sys_regs.h"
>
> /*
> * Inject wfx to the virtual EL2 if this is not from the virtual EL2 and
> @@ -38,3 +42,151 @@ int handle_wfx_nested(struct kvm_vcpu *vcpu, bool is_wfe)
>
> return -EINVAL;
> }
> +
> +/*
> + * Our emulated CPU doesn't support all the possible features. For the
> + * sake of simplicity (and probably mental sanity), wipe out a number
> + * of feature bits we don't intend to support for the time being.
> + * This list should get updated as new features get added to the NV
> + * support, and new extension to the architecture.
> + */
> +void access_nested_id_reg(struct kvm_vcpu *v, struct sys_reg_params *p,
> + const struct sys_reg_desc *r)
> +{
> + u32 id = sys_reg((u32)r->Op0, (u32)r->Op1,
> + (u32)r->CRn, (u32)r->CRm, (u32)r->Op2);
> + u64 val, tmp;
> +
> + if (!nested_virt_in_use(v))
> + return;
> +
> + val = p->regval;
> +
> + switch (id) {
> + case SYS_ID_AA64ISAR0_EL1:
> + /* Support everything but O.S. and Range TLBIs */
> + val &= ~(FEATURE(ID_AA64ISAR0_TLB) |
> + GENMASK_ULL(27, 24) |
> + GENMASK_ULL(3, 0));
> + break;
> +
> + case SYS_ID_AA64ISAR1_EL1:
> + /* Support everything but PtrAuth and Spec Invalidation */
> + val &= ~(GENMASK_ULL(63, 56) |
> + FEATURE(ID_AA64ISAR1_SPECRES) |
> + FEATURE(ID_AA64ISAR1_GPI) |
> + FEATURE(ID_AA64ISAR1_GPA) |
> + FEATURE(ID_AA64ISAR1_API) |
> + FEATURE(ID_AA64ISAR1_APA));
> + break;
> +
> + case SYS_ID_AA64PFR0_EL1:
> + /* No AMU, MPAM, S-EL2, RAS or SVE */
> + val &= ~(GENMASK_ULL(55, 52) |
> + FEATURE(ID_AA64PFR0_AMU) |
> + FEATURE(ID_AA64PFR0_MPAM) |
> + FEATURE(ID_AA64PFR0_SEL2) |
> + FEATURE(ID_AA64PFR0_RAS) |
> + FEATURE(ID_AA64PFR0_SVE) |
> + FEATURE(ID_AA64PFR0_EL3) |
> + FEATURE(ID_AA64PFR0_EL2));
> + /* 64bit EL2/EL3 only */
> + val |= FIELD_PREP(FEATURE(ID_AA64PFR0_EL2), 0b0001);
> + val |= FIELD_PREP(FEATURE(ID_AA64PFR0_EL3), 0b0001);
> + break;
> +
> + case SYS_ID_AA64PFR1_EL1:
> + /* Only support SSBS */
> + val &= FEATURE(ID_AA64PFR1_SSBS);
> + break;
> +
> + case SYS_ID_AA64MMFR0_EL1:
> + /* Hide ECV, FGT, ExS, Secure Memory */
> + val &= ~(GENMASK_ULL(63, 43) |
> + FEATURE(ID_AA64MMFR0_TGRAN4_2) |
> + FEATURE(ID_AA64MMFR0_TGRAN16_2) |
> + FEATURE(ID_AA64MMFR0_TGRAN64_2) |
> + FEATURE(ID_AA64MMFR0_SNSMEM));
> +
> + /* Disallow unsupported S2 page sizes */
> + switch (PAGE_SIZE) {
> + case SZ_64K:
> + val |= FIELD_PREP(FEATURE(ID_AA64MMFR0_TGRAN16_2), 0b0001);
> + fallthrough;
> + case SZ_16K:
> + val |= FIELD_PREP(FEATURE(ID_AA64MMFR0_TGRAN4_2), 0b0001);
> + fallthrough;
> + case SZ_4K:
> + /* Support everything */
> + break;
> + }
It seems to me that Host hypervisor(L0) has to boot with 4KB page size
to support all (4, 16 and 64KB) page sizes at L1, any specific reason
for this restriction?
> + /* Advertize supported S2 page sizes */
> + switch (PAGE_SIZE) {
> + case SZ_4K:
> + val |= FIELD_PREP(FEATURE(ID_AA64MMFR0_TGRAN4_2), 0b0010);
> + fallthrough;
> + case SZ_16K:
> + val |= FIELD_PREP(FEATURE(ID_AA64MMFR0_TGRAN16_2), 0b0010);
> + fallthrough;
> + case SZ_64K:
> + val |= FIELD_PREP(FEATURE(ID_AA64MMFR0_TGRAN64_2), 0b0010);
> + break;
> + }
> + /* Cap PARange to 40bits */
Any specific reasons for the 40 bit cap?
> + tmp = FIELD_GET(FEATURE(ID_AA64MMFR0_PARANGE), val);
> + if (tmp > 0b0010) {
> + val &= ~FEATURE(ID_AA64MMFR0_PARANGE);
> + val |= FIELD_PREP(FEATURE(ID_AA64MMFR0_PARANGE), 0b0010);
> + }
> + break;
> +
> + case SYS_ID_AA64MMFR1_EL1:
> + val &= (FEATURE(ID_AA64MMFR1_PAN) |
> + FEATURE(ID_AA64MMFR1_LOR) |
> + FEATURE(ID_AA64MMFR1_HPD) |
> + FEATURE(ID_AA64MMFR1_VHE) |
> + FEATURE(ID_AA64MMFR1_VMIDBITS));
> + break;
> +
> + case SYS_ID_AA64MMFR2_EL1:
> + val &= ~(FEATURE(ID_AA64MMFR2_EVT) |
> + FEATURE(ID_AA64MMFR2_BBM) |
> + FEATURE(ID_AA64MMFR2_TTL) |
> + GENMASK_ULL(47, 44) |
> + FEATURE(ID_AA64MMFR2_ST) |
> + FEATURE(ID_AA64MMFR2_CCIDX) |
> + FEATURE(ID_AA64MMFR2_LVA));
> +
> + /* Force TTL support */
> + val |= FIELD_PREP(FEATURE(ID_AA64MMFR2_TTL), 0b0001);
> + break;
> +
> + case SYS_ID_AA64DFR0_EL1:
> + /* Only limited support for PMU, Debug, BPs and WPs */
> + val &= (FEATURE(ID_AA64DFR0_PMSVER) |
> + FEATURE(ID_AA64DFR0_WRPS) |
> + FEATURE(ID_AA64DFR0_BRPS) |
> + FEATURE(ID_AA64DFR0_DEBUGVER));
> +
> + /* Cap PMU to ARMv8.1 */
> + tmp = FIELD_GET(FEATURE(ID_AA64DFR0_PMUVER), val);
> + if (tmp > 0b0100) {
> + val &= ~FEATURE(ID_AA64DFR0_PMUVER);
> + val |= FIELD_PREP(FEATURE(ID_AA64DFR0_PMUVER), 0b0100);
> + }
> + /* Cap Debug to ARMv8.1 */
> + tmp = FIELD_GET(FEATURE(ID_AA64DFR0_DEBUGVER), val);
> + if (tmp > 0b0111) {
> + val &= ~FEATURE(ID_AA64DFR0_DEBUGVER);
> + val |= FIELD_PREP(FEATURE(ID_AA64DFR0_DEBUGVER), 0b0111);
> + }
> + break;
> +
> + default:
> + /* Unknown register, just wipe it clean */
> + val = 0;
> + break;
> + }
> +
> + p->regval = val;
> +}
> diff --git a/arch/arm64/kvm/sys_regs.c b/arch/arm64/kvm/sys_regs.c
> index 9deedd5a058f..19b33ccb61b8 100644
> --- a/arch/arm64/kvm/sys_regs.c
> +++ b/arch/arm64/kvm/sys_regs.c
> @@ -1431,8 +1431,10 @@ static bool access_id_reg(struct kvm_vcpu *vcpu,
> const struct sys_reg_desc *r)
> {
> bool raz = sysreg_visible_as_raz(vcpu, r);
> + bool ret = __access_id_reg(vcpu, p, r, raz);
>
> - return __access_id_reg(vcpu, p, r, raz);
> + access_nested_id_reg(vcpu, p, r);
> + return ret;
> }
>
> static bool access_raz_id_reg(struct kvm_vcpu *vcpu,
> diff --git a/arch/arm64/kvm/sys_regs.h b/arch/arm64/kvm/sys_regs.h
> index cc0cc95a0280..d260c26b1834 100644
> --- a/arch/arm64/kvm/sys_regs.h
> +++ b/arch/arm64/kvm/sys_regs.h
> @@ -201,4 +201,6 @@ const struct sys_reg_desc *find_reg_by_id(u64 id,
> CRn(sys_reg_CRn(reg)), CRm(sys_reg_CRm(reg)), \
> Op2(sys_reg_Op2(reg))
>
> +#define FEATURE(x) (GENMASK_ULL(x##_SHIFT + 3, x##_SHIFT))
> +
> #endif /* __ARM64_KVM_SYS_REGS_LOCAL_H__ */
Thanks,
Ganapat
next prev parent reply other threads:[~2021-12-20 7:27 UTC|newest]
Thread overview: 139+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-11-29 20:00 [PATCH v5 00/69] KVM: arm64: ARMv8.3/8.4 Nested Virtualization support Marc Zyngier
2021-11-29 20:00 ` [PATCH v5 01/69] KVM: arm64: Save PSTATE early on exit Marc Zyngier
2022-01-17 15:36 ` Russell King (Oracle)
2021-11-29 20:00 ` [PATCH v5 02/69] KVM: arm64: Move pkvm's special 32bit handling into a generic infrastructure Marc Zyngier
2022-01-17 15:34 ` Russell King (Oracle)
2021-11-29 20:00 ` [PATCH v5 03/69] KVM: arm64: Add minimal handling for the ARMv8.7 PMU Marc Zyngier
2022-01-17 15:40 ` Russell King (Oracle)
2021-11-29 20:00 ` [PATCH v5 04/69] KVM: arm64: Rework kvm_pgtable initialisation Marc Zyngier
2022-01-17 15:43 ` Russell King (Oracle)
2021-11-29 20:00 ` [PATCH v5 05/69] KVM: arm64: Allow preservation of the S2 SW bits Marc Zyngier
2022-01-13 12:12 ` Alexandru Elisei
2022-01-13 13:14 ` Marc Zyngier
2022-01-17 15:51 ` Russell King (Oracle)
2021-11-29 20:00 ` [PATCH v5 06/69] arm64: Add ARM64_HAS_NESTED_VIRT cpufeature Marc Zyngier
2021-11-29 20:00 ` [PATCH v5 07/69] KVM: arm64: nv: Introduce nested virtualization VCPU feature Marc Zyngier
2021-12-20 6:45 ` Ganapatrao Kulkarni
2022-01-13 14:10 ` Alexandru Elisei
2022-01-13 14:24 ` Marc Zyngier
2022-01-17 16:57 ` Russell King (Oracle)
2021-11-29 20:00 ` [PATCH v5 08/69] KVM: arm64: nv: Reset VCPU to EL2 registers if VCPU nested virt is set Marc Zyngier
2022-01-07 21:54 ` Chase Conklin
2022-01-27 12:42 ` Marc Zyngier
2022-01-17 17:06 ` Russell King (Oracle)
2022-01-27 12:43 ` Marc Zyngier
2021-11-29 20:00 ` [PATCH v5 09/69] KVM: arm64: nv: Allow userspace to set PSR_MODE_EL2x Marc Zyngier
2022-01-17 17:07 ` Russell King (Oracle)
2021-11-29 20:00 ` [PATCH v5 10/69] KVM: arm64: nv: Add EL2 system registers to vcpu context Marc Zyngier
2022-01-17 17:14 ` Russell King (Oracle)
2021-11-29 20:00 ` [PATCH v5 11/69] KVM: arm64: nv: Add nested virt VCPU primitives for vEL2 VCPU state Marc Zyngier
2022-01-14 17:42 ` Alexandru Elisei
2022-01-15 12:19 ` Marc Zyngier
2022-01-17 10:19 ` Alexandru Elisei
2022-01-18 15:45 ` Russell King (Oracle)
2021-11-29 20:00 ` [PATCH v5 12/69] KVM: arm64: nv: Handle HCR_EL2.NV system register traps Marc Zyngier
2022-01-17 11:31 ` Alexandru Elisei
2022-01-26 16:08 ` Marc Zyngier
2022-01-18 15:51 ` Russell King (Oracle)
2022-01-26 16:01 ` Marc Zyngier
2021-11-29 20:00 ` [PATCH v5 13/69] KVM: arm64: nv: Reset VMPIDR_EL2 and VPIDR_EL2 to sane values Marc Zyngier
2022-01-18 15:52 ` Russell King (Oracle)
2021-11-29 20:00 ` [PATCH v5 14/69] KVM: arm64: nv: Support virtual EL2 exceptions Marc Zyngier
2021-12-20 6:57 ` Ganapatrao Kulkarni
2022-01-18 14:11 ` Alexandru Elisei
2022-01-26 20:11 ` Marc Zyngier
2022-01-18 16:02 ` Russell King (Oracle)
2022-01-26 20:32 ` Marc Zyngier
2022-01-20 13:58 ` Alexandru Elisei
2022-01-27 11:08 ` Marc Zyngier
2021-11-29 20:00 ` [PATCH v5 15/69] KVM: arm64: nv: Inject HVC exceptions to the virtual EL2 Marc Zyngier
2022-01-18 16:04 ` Russell King (Oracle)
2022-01-18 16:35 ` Alexandru Elisei
2021-11-29 20:00 ` [PATCH v5 16/69] KVM: arm64: nv: Handle trapped ERET from " Marc Zyngier
2022-01-18 16:05 ` Russell King (Oracle)
2022-01-18 16:36 ` Alexandru Elisei
2022-01-27 11:50 ` Marc Zyngier
2021-11-29 20:00 ` [PATCH v5 17/69] KVM: arm64: nv: Add non-VHE-EL2->EL1 translation helpers Marc Zyngier
2022-01-20 11:52 ` Alexandru Elisei
2022-01-27 17:22 ` Marc Zyngier
2021-11-29 20:00 ` [PATCH v5 18/69] KVM: arm64: nv: Handle virtual EL2 registers in vcpu_read/write_sys_reg() Marc Zyngier
2021-12-20 7:04 ` Ganapatrao Kulkarni
2021-12-20 9:10 ` Marc Zyngier
2021-12-21 7:12 ` Ganapatrao Kulkarni
2021-12-21 8:39 ` Marc Zyngier
2021-12-21 10:12 ` Ganapatrao Kulkarni
2022-01-20 15:12 ` Alexandru Elisei
2021-11-29 20:01 ` [PATCH v5 19/69] KVM: arm64: nv: Handle SPSR_EL2 specially Marc Zyngier
2022-01-20 16:28 ` Alexandru Elisei
2021-11-29 20:01 ` [PATCH v5 20/69] KVM: arm64: nv: Handle HCR_EL2.E2H specially Marc Zyngier
2021-11-29 20:01 ` [PATCH v5 21/69] KVM: arm64: nv: Save/Restore vEL2 sysregs Marc Zyngier
2021-11-29 20:01 ` [PATCH v5 22/69] KVM: arm64: nv: Emulate PSTATE.M for a guest hypervisor Marc Zyngier
2021-11-29 20:01 ` [PATCH v5 23/69] KVM: arm64: nv: Trap EL1 VM register accesses in virtual EL2 Marc Zyngier
2021-11-29 20:01 ` [PATCH v5 24/69] KVM: arm64: nv: Trap SPSR_EL1, ELR_EL1 and VBAR_EL1 from " Marc Zyngier
2021-11-29 20:01 ` [PATCH v5 25/69] KVM: arm64: nv: Trap CPACR_EL1 access in " Marc Zyngier
2021-11-29 20:01 ` [PATCH v5 26/69] KVM: arm64: nv: Handle PSCI call via smc from the guest Marc Zyngier
2021-11-29 20:01 ` [PATCH v5 27/69] KVM: arm64: nv: Respect virtual HCR_EL2.TWX setting Marc Zyngier
2021-11-29 20:01 ` [PATCH v5 28/69] KVM: arm64: nv: Respect virtual CPTR_EL2.{TFP,FPEN} settings Marc Zyngier
2021-11-29 20:01 ` [PATCH v5 29/69] KVM: arm64: nv: Respect the virtual HCR_EL2.NV bit setting Marc Zyngier
2021-12-20 7:11 ` Ganapatrao Kulkarni
2021-12-20 9:18 ` Marc Zyngier
2021-11-29 20:01 ` [PATCH v5 30/69] KVM: arm64: nv: Respect virtual HCR_EL2.TVM and TRVM settings Marc Zyngier
2021-11-29 20:01 ` [PATCH v5 31/69] KVM: arm64: nv: Respect the virtual HCR_EL2.NV1 bit setting Marc Zyngier
2021-12-20 7:18 ` Ganapatrao Kulkarni
2021-12-20 9:39 ` Marc Zyngier
2021-11-29 20:01 ` [PATCH v5 32/69] KVM: arm64: nv: Emulate EL12 register accesses from the virtual EL2 Marc Zyngier
2021-11-29 20:01 ` [PATCH v5 33/69] KVM: arm64: nv: Forward debug traps to the nested guest Marc Zyngier
2021-11-29 20:01 ` [PATCH v5 34/69] KVM: arm64: nv: Configure HCR_EL2 for nested virtualization Marc Zyngier
2022-01-04 8:53 ` Ganapatrao Kulkarni
2022-01-04 9:39 ` Marc Zyngier
2022-01-04 9:53 ` Ganapatrao Kulkarni
2021-11-29 20:01 ` [PATCH v5 35/69] KVM: arm64: nv: Only toggle cache for virtual EL2 when SCTLR_EL2 changes Marc Zyngier
2021-11-29 20:01 ` [PATCH v5 36/69] KVM: arm64: nv: Filter out unsupported features from ID regs Marc Zyngier
2021-12-20 7:26 ` Ganapatrao Kulkarni [this message]
2021-12-20 9:56 ` Marc Zyngier
2021-12-21 6:03 ` Ganapatrao Kulkarni
2021-12-21 9:10 ` Marc Zyngier
2021-12-21 10:07 ` Ganapatrao Kulkarni
2022-01-21 11:33 ` Ganapatrao Kulkarni
2022-01-27 13:04 ` Marc Zyngier
2022-01-04 10:24 ` Ganapatrao Kulkarni
2021-11-29 20:01 ` [PATCH v5 37/69] KVM: arm64: nv: Hide RAS from nested guests Marc Zyngier
2021-11-29 20:01 ` [PATCH v5 38/69] KVM: arm64: nv: Support multiple nested Stage-2 mmu structures Marc Zyngier
2022-01-18 11:24 ` Ganapatrao Kulkarni
2022-01-27 11:50 ` Marc Zyngier
2021-11-29 20:01 ` [PATCH v5 39/69] KVM: arm64: nv: Implement nested Stage-2 page table walk logic Marc Zyngier
2021-11-29 20:01 ` [PATCH v5 40/69] KVM: arm64: nv: Handle shadow stage 2 page faults Marc Zyngier
2021-11-29 20:01 ` [PATCH v5 41/69] KVM: arm64: nv: Restrict S2 RD/WR permissions to match the guest's Marc Zyngier
2021-11-29 20:01 ` [PATCH v5 42/69] KVM: arm64: nv: Unmap/flush shadow stage 2 page tables Marc Zyngier
2021-11-29 20:01 ` [PATCH v5 43/69] KVM: arm64: nv: Introduce sys_reg_desc.forward_trap Marc Zyngier
2021-11-29 20:01 ` [PATCH v5 44/69] KVM: arm64: nv: Set a handler for the system instruction traps Marc Zyngier
2022-01-18 11:29 ` Ganapatrao Kulkarni
2021-11-29 20:01 ` [PATCH v5 45/69] KVM: arm64: nv: Trap and emulate AT instructions from virtual EL2 Marc Zyngier
2021-11-29 20:01 ` [PATCH v5 46/69] KVM: arm64: nv: Trap and emulate TLBI " Marc Zyngier
2021-11-29 20:01 ` [PATCH v5 47/69] KVM: arm64: nv: Fold guest's HCR_EL2 configuration into the host's Marc Zyngier
2021-11-29 20:01 ` [PATCH v5 48/69] KVM: arm64: nv: arch_timer: Support hyp timer emulation Marc Zyngier
2021-11-29 20:01 ` [PATCH v5 49/69] KVM: arm64: nv: Add handling of EL2-specific timer registers Marc Zyngier
2021-11-29 20:01 ` [PATCH v5 50/69] KVM: arm64: nv: Load timer before the GIC Marc Zyngier
2021-11-29 20:01 ` [PATCH v5 51/69] KVM: arm64: nv: Nested GICv3 Support Marc Zyngier
2021-11-29 20:01 ` [PATCH v5 52/69] KVM: arm64: nv: Don't load the GICv4 context on entering a nested guest Marc Zyngier
2021-11-29 20:01 ` [PATCH v5 53/69] KVM: arm64: nv: vgic: Emulate the HW bit in software Marc Zyngier
2021-11-29 20:01 ` [PATCH v5 54/69] KVM: arm64: nv: vgic: Allow userland to set VGIC maintenance IRQ Marc Zyngier
2021-11-29 20:01 ` [PATCH v5 55/69] KVM: arm64: nv: Implement maintenance interrupt forwarding Marc Zyngier
2021-11-29 20:01 ` [PATCH v5 56/69] KVM: arm64: nv: Add nested GICv3 tracepoints Marc Zyngier
2021-11-29 20:01 ` [PATCH v5 57/69] KVM: arm64: nv: Allow userspace to request KVM_ARM_VCPU_NESTED_VIRT Marc Zyngier
2021-11-29 20:01 ` [PATCH v5 58/69] KVM: arm64: nv: Add handling of ARMv8.4-TTL TLB invalidation Marc Zyngier
2022-01-18 11:35 ` Ganapatrao Kulkarni
2021-11-29 20:01 ` [PATCH v5 59/69] KVM: arm64: nv: Invalidate TLBs based on shadow S2 TTL-like information Marc Zyngier
2021-11-29 20:01 ` [PATCH v5 60/69] KVM: arm64: nv: Tag shadow S2 entries with nested level Marc Zyngier
2021-11-29 20:01 ` [PATCH v5 61/69] KVM: arm64: nv: Add include containing the VNCR_EL2 offsets Marc Zyngier
2021-11-29 20:01 ` [PATCH v5 62/69] KVM: arm64: nv: Map VNCR-capable registers to a separate page Marc Zyngier
2021-11-29 20:01 ` [PATCH v5 63/69] KVM: arm64: nv: Move nested vgic state into the sysreg file Marc Zyngier
2021-11-29 20:01 ` [PATCH v5 64/69] KVM: arm64: Add ARMv8.4 Enhanced Nested Virt cpufeature Marc Zyngier
2021-11-29 20:01 ` [PATCH v5 65/69] KVM: arm64: nv: Sync nested timer state with ARMv8.4 Marc Zyngier
2021-11-29 20:01 ` [PATCH v5 66/69] KVM: arm64: nv: Allocate VNCR page when required Marc Zyngier
2021-11-29 20:01 ` [PATCH v5 67/69] KVM: arm64: nv: Enable ARMv8.4-NV support Marc Zyngier
2022-01-18 11:50 ` Ganapatrao Kulkarni
2022-01-27 11:48 ` Marc Zyngier
2021-11-29 20:01 ` [PATCH v5 68/69] KVM: arm64: nv: Fast-track 'InHost' exception returns Marc Zyngier
2021-11-29 20:01 ` [PATCH v5 69/69] KVM: arm64: nv: Fast-track EL1 TLBIs for VHE guests Marc Zyngier
2021-12-16 17:19 ` (subset) [PATCH v5 00/69] KVM: arm64: ARMv8.3/8.4 Nested Virtualization support Marc Zyngier
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