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 v6 3/6] KVM: arm64: Enable writable for ID_AA64DFR0_EL1 and ID_DFR0_EL1
Date: Tue, 18 Jul 2023 16:45:19 +0000 [thread overview]
Message-ID: <20230718164522.3498236-4-jingzhangos@google.com> (raw)
In-Reply-To: <20230718164522.3498236-1-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 053d8057ff1e..f33aec83f1b4 100644
--- a/arch/arm64/kvm/sys_regs.c
+++ b/arch/arm64/kvm/sys_regs.c
@@ -2008,7 +2008,7 @@ 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),
@@ -2057,7 +2057,7 @@ 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),
--
2.41.0.255.g8b1d071c50-goog
_______________________________________________
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:[~2023-07-19 6:32 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-07-18 16:45 [PATCH v6 0/6] Enable writable for idregs DFR0,PFR0, MMFR{0,1,2, 3} Jing Zhang
2023-07-18 16:45 ` [PATCH v6 1/6] KVM: arm64: Use guest ID register values for the sake of emulation Jing Zhang
2023-07-18 16:45 ` [PATCH v6 2/6] KVM: arm64: Reject attempts to set invalid debug arch version Jing Zhang
2023-07-21 21:18 ` Oliver Upton
2023-07-21 22:26 ` Jing Zhang
2023-07-18 16:45 ` Jing Zhang [this message]
2023-07-20 8:52 ` [PATCH v6 3/6] KVM: arm64: Enable writable for ID_AA64DFR0_EL1 and ID_DFR0_EL1 Cornelia Huck
2023-07-20 16:39 ` Jing Zhang
2023-07-21 8:38 ` Cornelia Huck
2023-07-21 9:31 ` Marc Zyngier
2023-07-21 9:48 ` Cornelia Huck
2023-07-29 10:36 ` Marc Zyngier
2023-07-31 20:51 ` Jing Zhang
2023-07-21 18:22 ` Jing Zhang
2023-07-21 21:10 ` Oliver Upton
[not found] ` <87edkxg0jr.fsf@redhat.com>
[not found] ` <ZMFWsvWzfkkz2VNB@thinky-boi>
2023-07-27 9:34 ` Cornelia Huck
2023-07-18 16:45 ` [PATCH v6 4/6] KVM: arm64: Enable writable for ID_AA64PFR0_EL1 Jing Zhang
2023-07-18 16:45 ` [PATCH v6 5/6] KVM: arm64: Enable writable for ID_AA64MMFR{0, 1, 2, 3}_EL1 Jing Zhang
2023-07-18 16:45 ` [PATCH v6 6/6] KVM: arm64: selftests: Test for setting ID register from usersapce Jing Zhang
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20230718164522.3498236-4-jingzhangos@google.com \
--to=jingzhangos@google.com \
--cc=alexandru.elisei@arm.com \
--cc=cohuck@redhat.com \
--cc=james.morse@arm.com \
--cc=kvm@vger.kernel.org \
--cc=kvmarm@lists.linux.dev \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=maz@kernel.org \
--cc=oliver.upton@linux.dev \
--cc=pbonzini@redhat.com \
--cc=rananta@google.com \
--cc=reijiw@google.com \
--cc=surajjs@amazon.com \
--cc=suzuki.poulose@arm.com \
--cc=tabba@google.com \
--cc=will@kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).