From: Leonardo Bras <leo.bras@arm.com>
To: "Catalin Marinas" <catalin.marinas@arm.com>,
"Will Deacon" <will@kernel.org>, "Marc Zyngier" <maz@kernel.org>,
"Oliver Upton" <oupton@kernel.org>,
"Joey Gouly" <joey.gouly@arm.com>,
"Steffen Eiden" <seiden@linux.ibm.com>,
"Suzuki K Poulose" <suzuki.poulose@arm.com>,
"Zenghui Yu" <yuzenghui@huawei.com>,
"Rafael J. Wysocki" <rafael@kernel.org>,
"Len Brown" <lenb@kernel.org>,
"Saket Dumbre" <saket.dumbre@intel.com>,
"Paolo Bonzini" <pbonzini@redhat.com>,
"Jonathan Cameron" <jic23@kernel.org>,
"Chengwen Feng" <fengchengwen@huawei.com>,
"Leonardo Bras" <leo.bras@arm.com>, "Kees Cook" <kees@kernel.org>,
"Mikołaj Lenczewski" <miko.lenczewski@arm.com>,
"James Morse" <james.morse@arm.com>,
"Zeng Heng" <zengheng4@huawei.com>,
mrigendrachaubey <mrigendra.chaubey@gmail.com>,
"Thomas Huth" <thuth@redhat.com>,
"Ryan Roberts" <ryan.roberts@arm.com>,
"Yeoreum Yun" <yeoreum.yun@arm.com>,
"Mark Brown" <broonie@kernel.org>,
"Kevin Brodsky" <kevin.brodsky@arm.com>,
"James Clark" <james.clark@linaro.org>,
"Fuad Tabba" <tabba@google.com>,
"Raghavendra Rao Ananta" <rananta@google.com>,
"Lorenzo Pieralisi" <lpieralisi@kernel.org>,
"Sascha Bischoff" <Sascha.Bischoff@arm.com>,
"Anshuman Khandual" <anshuman.khandual@arm.com>,
"Tian Zheng" <zhengtian10@huawei.com>
Cc: linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, kvmarm@lists.linux.dev,
linux-acpi@vger.kernel.org, acpica-devel@lists.linux.dev,
kvm@vger.kernel.org
Subject: [PATCH v2 04/13] arm64/sysreg: Add HACDBS consumer and base registers
Date: Mon, 29 Jun 2026 12:17:52 +0100 [thread overview]
Message-ID: <20260629111820.1873540-5-leo.bras@arm.com> (raw)
In-Reply-To: <20260629111820.1873540-1-leo.bras@arm.com>
They will be used on a later commit to make use of the FEAT_HACDBS
mechanism if available.
Signed-off-by: Leonardo Bras <leo.bras@arm.com>
Reviewed-by: Mark Brown <broonie@kernel.org>
---
arch/arm64/tools/sysreg | 30 ++++++++++++++++++++++++++++++
1 file changed, 30 insertions(+)
diff --git a/arch/arm64/tools/sysreg b/arch/arm64/tools/sysreg
index bc1788b1662b..7b7c3d6a0f03 100644
--- a/arch/arm64/tools/sysreg
+++ b/arch/arm64/tools/sysreg
@@ -4627,20 +4627,50 @@ EndEnum
Enum 9:8 IRGN0
0b00 NC
0b01 WBWA
0b10 WT
0b11 WBnWA
EndEnum
Field 7:6 SL0
Field 5:0 T0SZ
EndSysreg
+Sysreg HACDBSBR_EL2 3 4 2 3 4
+Res0 63:56
+Field 55:12 BADDR
+Field 11 EN
+Res0 10:4
+UnsignedEnum 3:0 SZ
+ 0b0000 4K
+ 0b0001 8K
+ 0b0010 16K
+ 0b0011 32K
+ 0b0100 64K
+ 0b0101 128K
+ 0b0110 256K
+ 0b0111 512K
+ 0b1000 1M
+ 0b1001 2M
+EndEnum
+EndSysreg
+
+Sysreg HACDBSCONS_EL2 3 4 2 3 5
+UnsignedEnum 63:62 ERR_REASON
+ 0b00 NOF
+ 0b01 STRUCTF
+ 0b10 IPAF
+ 0b11 IPAHACF
+EndEnum
+Res0 61:19
+Field 18:0 INDEX
+EndSysreg
+
Sysreg GCSCR_EL2 3 4 2 5 0
Fields GCSCR_ELx
EndSysreg
Sysreg GCSPR_EL2 3 4 2 5 1
Fields GCSPR_ELx
EndSysreg
Sysreg HDBSSBR_EL2 3 4 2 3 2
Res0 63:56
--
2.54.0
next prev parent reply other threads:[~2026-06-29 11:19 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-06-29 11:17 [PATCH v2 00/13] KVM Dirty-bit cleaning hw accelerator (HACDBS) Leonardo Bras
2026-06-29 11:17 ` [PATCH v2 01/13] KVM: arm64: HDBSS bits Leonardo Bras
2026-06-29 11:17 ` [PATCH v2 02/13] KVM: arm64: Enable eager hugepage splitting if HDBSS is available Leonardo Bras
2026-06-29 11:17 ` [PATCH v2 03/13] arm64/cpufeature: Add system-wide FEAT_HACDBS detection Leonardo Bras
2026-06-29 11:17 ` Leonardo Bras [this message]
2026-06-29 11:17 ` [PATCH v2 05/13] KVM: arm64: Detect (via ACPI) and initialize HACDBSIRQ Leonardo Bras
2026-06-29 17:22 ` Oliver Upton
2026-06-30 14:50 ` Leonardo Bras
2026-06-30 16:03 ` Oliver Upton
2026-06-30 17:19 ` Leonardo Bras
2026-06-29 11:17 ` [PATCH v2 06/13] KVM: arm64: dirty_bit: Add base FEAT_HACDBS cleaning routine Leonardo Bras
2026-06-29 17:36 ` Oliver Upton
2026-06-30 14:59 ` Leonardo Bras
2026-06-30 19:06 ` Oliver Upton
2026-07-01 10:47 ` Leonardo Bras
2026-06-29 11:17 ` [PATCH v2 07/13] kvm: Add arch-generic interface for hw-accelerated dirty-bitmap cleaning Leonardo Bras
2026-06-29 11:17 ` [PATCH v2 08/13] KVM: arm64: Add hardware-accelerated dirty-bitmap cleaning routine Leonardo Bras
2026-06-29 11:17 ` [PATCH v2 09/13] KVM: arm64: Dirty-bitmap: avoid splitting previously split blocks Leonardo Bras
2026-06-29 11:17 ` [PATCH v2 10/13] kvm/dirty_ring: Introduce get_memslot and move helpers to header Leonardo Bras
2026-06-29 11:17 ` [PATCH v2 11/13] kvm/dirty_ring: Add arch-generic interface for hw-accelerated dirty-ring cleaning Leonardo Bras
2026-06-29 11:18 ` [PATCH v2 12/13] KVM: arm64: Add hardware-accelerated dirty-ring cleaning routine Leonardo Bras
2026-06-29 11:18 ` [PATCH v2 13/13] KVM: arm64: Enable KVM_HW_DIRTY_BIT Leonardo Bras
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=20260629111820.1873540-5-leo.bras@arm.com \
--to=leo.bras@arm.com \
--cc=Sascha.Bischoff@arm.com \
--cc=acpica-devel@lists.linux.dev \
--cc=anshuman.khandual@arm.com \
--cc=broonie@kernel.org \
--cc=catalin.marinas@arm.com \
--cc=fengchengwen@huawei.com \
--cc=james.clark@linaro.org \
--cc=james.morse@arm.com \
--cc=jic23@kernel.org \
--cc=joey.gouly@arm.com \
--cc=kees@kernel.org \
--cc=kevin.brodsky@arm.com \
--cc=kvm@vger.kernel.org \
--cc=kvmarm@lists.linux.dev \
--cc=lenb@kernel.org \
--cc=linux-acpi@vger.kernel.org \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-kernel@vger.kernel.org \
--cc=lpieralisi@kernel.org \
--cc=maz@kernel.org \
--cc=miko.lenczewski@arm.com \
--cc=mrigendra.chaubey@gmail.com \
--cc=oupton@kernel.org \
--cc=pbonzini@redhat.com \
--cc=rafael@kernel.org \
--cc=rananta@google.com \
--cc=ryan.roberts@arm.com \
--cc=saket.dumbre@intel.com \
--cc=seiden@linux.ibm.com \
--cc=suzuki.poulose@arm.com \
--cc=tabba@google.com \
--cc=thuth@redhat.com \
--cc=will@kernel.org \
--cc=yeoreum.yun@arm.com \
--cc=yuzenghui@huawei.com \
--cc=zengheng4@huawei.com \
--cc=zhengtian10@huawei.com \
/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