From: Jing Zhang <jingzhangos@google.com>
To: KVM <kvm@vger.kernel.org>, KVMARM <kvmarm@lists.linux.dev>,
ARMLinux <linux-arm-kernel@lists.infradead.org>,
Marc Zyngier <maz@kernel.org>,
Oliver Upton <oliver.upton@linux.dev>
Cc: Will Deacon <will@kernel.org>,
Paolo Bonzini <pbonzini@redhat.com>,
James Morse <james.morse@arm.com>,
Alexandru Elisei <alexandru.elisei@arm.com>,
Suzuki K Poulose <suzuki.poulose@arm.com>,
Fuad Tabba <tabba@google.com>,
Reiji Watanabe <reijiw@google.com>,
Raghavendra Rao Ananta <rananta@google.com>,
Suraj Jitindar Singh <surajjs@amazon.com>,
Cornelia Huck <cohuck@redhat.com>,
Jing Zhang <jingzhangos@google.com>
Subject: [PATCH v7 05/10] KVM: arm64: Enable writable for ID_AA64DFR0_EL1 and ID_DFR0_EL1
Date: Tue, 1 Aug 2023 08:20:01 -0700 [thread overview]
Message-ID: <20230801152007.337272-6-jingzhangos@google.com> (raw)
In-Reply-To: <20230801152007.337272-1-jingzhangos@google.com>
All valid fields in ID_AA64DFR0_EL1 and ID_DFR0_EL1 are writable
from usrespace with this change.
Signed-off-by: Jing Zhang <jingzhangos@google.com>
---
arch/arm64/kvm/sys_regs.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/arm64/kvm/sys_regs.c b/arch/arm64/kvm/sys_regs.c
index 7fcbc317f100..2183cd3af472 100644
--- a/arch/arm64/kvm/sys_regs.c
+++ b/arch/arm64/kvm/sys_regs.c
@@ -2006,7 +2006,7 @@ static const struct sys_reg_desc sys_reg_descs[] = {
.set_user = set_id_dfr0_el1,
.visibility = aa32_id_visibility,
.reset = read_sanitised_id_dfr0_el1,
- .val = ID_DFR0_EL1_PerfMon_MASK, },
+ .val = GENMASK(63, 0), },
ID_HIDDEN(ID_AFR0_EL1),
AA32_ID_SANITISED(ID_MMFR0_EL1),
AA32_ID_SANITISED(ID_MMFR1_EL1),
@@ -2055,7 +2055,7 @@ static const struct sys_reg_desc sys_reg_descs[] = {
.get_user = get_id_reg,
.set_user = set_id_aa64dfr0_el1,
.reset = read_sanitised_id_aa64dfr0_el1,
- .val = ID_AA64DFR0_EL1_PMUVer_MASK, },
+ .val = GENMASK(63, 0), },
ID_SANITISED(ID_AA64DFR1_EL1),
ID_UNALLOCATED(5,2),
ID_UNALLOCATED(5,3),
--
2.41.0.585.gd2178a4bd4-goog
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next prev parent reply other threads:[~2023-08-01 15:21 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-08-01 15:19 [PATCH v7 00/10] Enable writable for idregs DFR0,PFR0, MMFR{0,1,2,3} Jing Zhang
2023-08-01 15:19 ` [PATCH v7 01/10] KVM: arm64: Allow userspace to get the writable masks for feature ID registers Jing Zhang
2023-08-02 0:04 ` Oliver Upton
2023-08-02 15:55 ` Jing Zhang
2023-08-02 17:04 ` Oliver Upton
2023-08-02 17:48 ` Jing Zhang
2023-08-03 13:20 ` Cornelia Huck
2023-08-08 17:02 ` Oliver Upton
2023-08-10 4:27 ` Shaoqin Huang
2023-08-10 4:57 ` Jing Zhang
2023-08-01 15:19 ` [PATCH v7 02/10] KVM: arm64: Document KVM_ARM_GET_FEATURE_ID_WRITABLE_MASKS Jing Zhang
2023-08-01 15:19 ` [PATCH v7 03/10] KVM: arm64: Use guest ID register values for the sake of emulation Jing Zhang
2023-08-01 15:20 ` [PATCH v7 04/10] KVM: arm64: Reject attempts to set invalid debug arch version Jing Zhang
2023-08-01 15:20 ` Jing Zhang [this message]
2023-08-01 15:20 ` [PATCH v7 06/10] KVM: arm64: Bump up the default KVM sanitised debug version to v8p8 Jing Zhang
2023-08-01 15:20 ` [PATCH v7 07/10] KVM: arm64: Enable writable for ID_AA64PFR0_EL1 Jing Zhang
2023-08-01 15:20 ` [PATCH v7 08/10] KVM: arm64: Refactor helper Macros for idreg desc Jing Zhang
2023-08-01 15:20 ` [PATCH v7 09/10] KVM: arm64: Enable writable for ID_AA64MMFR{0, 1, 2, 3}_EL1 Jing Zhang
2023-08-01 15:20 ` [PATCH v7 10/10] KVM: arm64: selftests: Test for setting ID register from usersapce Jing Zhang
2023-08-02 17:27 ` Oliver Upton
2023-08-03 23:42 ` Jing Zhang
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