From: Dave Martin <Dave.Martin@arm.com>
To: kvmarm@lists.cs.columbia.edu
Cc: "Peter Maydell" <peter.maydell@linaro.org>,
"Okamoto Takayuki" <tokamoto@jp.fujitsu.com>,
"Christoffer Dall" <cdall@kernel.org>,
"Ard Biesheuvel" <ard.biesheuvel@linaro.org>,
"Marc Zyngier" <marc.zyngier@arm.com>,
"Catalin Marinas" <catalin.marinas@arm.com>,
"Will Deacon" <will.deacon@arm.com>,
"Zhang Lei" <zhang.lei@jp.fujitsu.com>,
"Julien Grall" <julien.grall@arm.com>,
"Alex Bennée" <alex.bennee@linaro.org>,
linux-arm-kernel@lists.infradead.org
Subject: [PATCH v7 01/27] KVM: Documentation: Document arm64 core registers in detail
Date: Fri, 29 Mar 2019 13:00:26 +0000 [thread overview]
Message-ID: <1553864452-15080-2-git-send-email-Dave.Martin@arm.com> (raw)
In-Reply-To: <1553864452-15080-1-git-send-email-Dave.Martin@arm.com>
Since the the sizes of individual members of the core arm64
registers vary, the list of register encodings that make sense is
not a simple linear sequence.
To clarify which encodings to use, this patch adds a brief list
to the documentation.
Signed-off-by: Dave Martin <Dave.Martin@arm.com>
Reviewed-by: Julien Grall <julien.grall@arm.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
---
Documentation/virtual/kvm/api.txt | 24 ++++++++++++++++++++++++
1 file changed, 24 insertions(+)
diff --git a/Documentation/virtual/kvm/api.txt b/Documentation/virtual/kvm/api.txt
index 7de9eee..2d4f7ce 100644
--- a/Documentation/virtual/kvm/api.txt
+++ b/Documentation/virtual/kvm/api.txt
@@ -2107,6 +2107,30 @@ contains elements ranging from 32 to 128 bits. The index is a 32bit
value in the kvm_regs structure seen as a 32bit array.
0x60x0 0000 0010 <index into the kvm_regs struct:16>
+Specifically:
+ Encoding Register Bits kvm_regs member
+----------------------------------------------------------------
+ 0x6030 0000 0010 0000 X0 64 regs.regs[0]
+ 0x6030 0000 0010 0002 X1 64 regs.regs[1]
+ ...
+ 0x6030 0000 0010 003c X30 64 regs.regs[30]
+ 0x6030 0000 0010 003e SP 64 regs.sp
+ 0x6030 0000 0010 0040 PC 64 regs.pc
+ 0x6030 0000 0010 0042 PSTATE 64 regs.pstate
+ 0x6030 0000 0010 0044 SP_EL1 64 sp_el1
+ 0x6030 0000 0010 0046 ELR_EL1 64 elr_el1
+ 0x6030 0000 0010 0048 SPSR_EL1 64 spsr[KVM_SPSR_EL1] (alias SPSR_SVC)
+ 0x6030 0000 0010 004a SPSR_ABT 64 spsr[KVM_SPSR_ABT]
+ 0x6030 0000 0010 004c SPSR_UND 64 spsr[KVM_SPSR_UND]
+ 0x6030 0000 0010 004e SPSR_IRQ 64 spsr[KVM_SPSR_IRQ]
+ 0x6060 0000 0010 0050 SPSR_FIQ 64 spsr[KVM_SPSR_FIQ]
+ 0x6040 0000 0010 0054 V0 128 fp_regs.vregs[0]
+ 0x6040 0000 0010 0058 V1 128 fp_regs.vregs[1]
+ ...
+ 0x6040 0000 0010 00d0 V31 128 fp_regs.vregs[31]
+ 0x6020 0000 0010 00d4 FPSR 32 fp_regs.fpsr
+ 0x6020 0000 0010 00d5 FPCR 32 fp_regs.fpcr
+
arm64 CCSIDR registers are demultiplexed by CSSELR value:
0x6020 0000 0011 00 <csselr:8>
--
2.1.4
_______________________________________________
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:[~2019-03-29 13:01 UTC|newest]
Thread overview: 109+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-03-29 13:00 [PATCH v7 00/27] KVM: arm64: SVE guest support Dave Martin
2019-03-29 13:00 ` Dave Martin [this message]
2019-04-24 9:25 ` [PATCH v7 01/27] KVM: Documentation: Document arm64 core registers in detail Alex Bennée
2019-03-29 13:00 ` [PATCH v7 02/27] arm64: fpsimd: Always set TIF_FOREIGN_FPSTATE on task state flush Dave Martin
2019-03-29 13:00 ` [PATCH v7 03/27] KVM: arm64: Delete orphaned declaration for __fpsimd_enabled() Dave Martin
2019-03-29 13:00 ` [PATCH v7 04/27] KVM: arm64: Refactor kvm_arm_num_regs() for easier maintenance Dave Martin
2019-03-29 13:00 ` [PATCH v7 05/27] KVM: arm64: Add missing #includes to kvm_host.h Dave Martin
2019-03-29 13:00 ` [PATCH v7 06/27] arm64/sve: Clarify role of the VQ map maintenance functions Dave Martin
2019-04-04 21:21 ` Andrew Jones
2019-03-29 13:00 ` [PATCH v7 07/27] arm64/sve: Check SVE virtualisability Dave Martin
2019-04-04 21:21 ` Andrew Jones
2019-04-05 9:35 ` Dave Martin
2019-03-29 13:00 ` [PATCH v7 08/27] arm64/sve: Enable SVE state tracking for non-task contexts Dave Martin
2019-03-29 13:00 ` [PATCH v7 09/27] KVM: arm64: Add a vcpu flag to control SVE visibility for the guest Dave Martin
2019-04-03 19:14 ` Andrew Jones
2019-04-04 3:17 ` Marc Zyngier
2019-04-04 7:53 ` Dave Martin
2019-04-04 21:15 ` Andrew Jones
2019-03-29 13:00 ` [PATCH v7 10/27] KVM: arm64: Propagate vcpu into read_id_reg() Dave Martin
2019-04-04 21:15 ` Andrew Jones
2019-03-29 13:00 ` [PATCH v7 11/27] KVM: arm64: Support runtime sysreg visibility filtering Dave Martin
2019-04-03 19:17 ` Andrew Jones
2019-04-24 9:39 ` Alex Bennée
2019-04-24 13:47 ` Dave Martin
2019-03-29 13:00 ` [PATCH v7 12/27] KVM: arm64/sve: System register context switch and access support Dave Martin
2019-04-03 19:39 ` Andrew Jones
2019-04-04 8:06 ` Dave Martin
2019-04-04 8:32 ` Andrew Jones
2019-04-04 8:47 ` Dave Martin
2019-04-04 8:59 ` Andrew Jones
2019-04-24 15:21 ` Alex Bennée
2019-04-25 13:28 ` Dave Martin
2019-03-29 13:00 ` [PATCH v7 13/27] KVM: arm64/sve: Context switch the SVE registers Dave Martin
2019-04-03 20:01 ` Andrew Jones
2019-04-04 8:10 ` Dave Martin
2019-04-04 8:35 ` Andrew Jones
2019-04-04 8:36 ` Dave Martin
2019-04-24 14:51 ` Alex Bennée
2019-04-25 13:35 ` Dave Martin
2019-03-29 13:00 ` [PATCH v7 14/27] KVM: Allow 2048-bit register access via ioctl interface Dave Martin
2019-04-04 21:11 ` Andrew Jones
2019-03-29 13:00 ` [PATCH v7 15/27] KVM: arm64: Add missing #include of <linux/string.h> in guest.c Dave Martin
2019-03-29 13:00 ` [PATCH v7 16/27] KVM: arm64: Factor out core register ID enumeration Dave Martin
2019-04-02 2:41 ` Marc Zyngier
2019-04-02 8:59 ` Dave Martin
2019-04-02 9:32 ` Marc Zyngier
2019-04-02 9:54 ` Dave P Martin
2019-03-29 13:00 ` [PATCH v7 17/27] KVM: arm64: Reject ioctl access to FPSIMD V-regs on SVE vcpus Dave Martin
2019-04-03 20:15 ` Andrew Jones
2019-04-24 13:45 ` Alex Bennée
2019-03-29 13:00 ` [PATCH v7 18/27] KVM: arm64/sve: Add SVE support to register access ioctl interface Dave Martin
2019-04-04 13:57 ` Andrew Jones
2019-04-04 14:50 ` Dave Martin
2019-04-04 16:25 ` Andrew Jones
2019-04-04 16:56 ` Dave Martin
2019-03-29 13:00 ` [PATCH v7 19/27] KVM: arm64: Enumerate SVE register indices for KVM_GET_REG_LIST Dave Martin
2019-04-04 14:08 ` Andrew Jones
2019-04-05 9:35 ` Dave Martin
2019-04-05 9:45 ` Andrew Jones
2019-04-05 11:11 ` Dave Martin
2019-03-29 13:00 ` [PATCH v7 20/27] arm64/sve: In-kernel vector length availability query interface Dave Martin
2019-04-04 14:20 ` Andrew Jones
2019-04-05 9:35 ` Dave Martin
2019-04-05 9:54 ` Andrew Jones
2019-04-05 11:13 ` Dave Martin
2019-03-29 13:00 ` [PATCH v7 21/27] KVM: arm/arm64: Add hook for arch-specific KVM initialisation Dave Martin
2019-04-04 14:25 ` Andrew Jones
2019-04-04 14:53 ` Dave Martin
2019-04-04 16:33 ` Andrew Jones
2019-04-05 9:36 ` Dave Martin
2019-04-05 10:40 ` Andrew Jones
2019-04-05 11:14 ` Dave Martin
2019-03-29 13:00 ` [PATCH v7 22/27] KVM: arm/arm64: Add KVM_ARM_VCPU_FINALIZE ioctl Dave Martin
2019-04-04 15:07 ` Andrew Jones
2019-04-04 16:47 ` Dave Martin
2019-03-29 13:00 ` [PATCH v7 23/27] KVM: arm64/sve: Add pseudo-register for the guest's vector lengths Dave Martin
2019-04-04 20:18 ` Andrew Jones
2019-04-05 9:36 ` Dave Martin
2019-04-05 10:14 ` Andrew Jones
2019-04-05 12:54 ` Dave Martin
2019-04-05 15:33 ` Andrew Jones
2019-04-10 12:42 ` Dave Martin
2019-04-04 20:31 ` Andrew Jones
2019-04-05 9:36 ` Dave Martin
2019-04-05 10:22 ` Andrew Jones
2019-04-05 14:06 ` Dave Martin
2019-04-05 15:41 ` Andrew Jones
2019-04-10 12:35 ` Dave Martin
2019-03-29 13:00 ` [PATCH v7 24/27] KVM: arm64/sve: Allow userspace to enable SVE for vcpus Dave Martin
2019-04-04 20:36 ` Andrew Jones
2019-03-29 13:00 ` [PATCH v7 25/27] KVM: arm64: Add a capability to advertise SVE support Dave Martin
2019-04-04 20:39 ` Andrew Jones
2019-03-29 13:00 ` [PATCH v7 26/27] KVM: Document errors for KVM_GET_ONE_REG and KVM_SET_ONE_REG Dave Martin
2019-04-03 20:27 ` Andrew Jones
2019-04-04 8:35 ` Dave Martin
2019-04-04 9:34 ` Andrew Jones
2019-04-04 9:38 ` Dave P Martin
2019-04-04 9:45 ` Andrew Jones
2019-03-29 13:00 ` [PATCH v7 27/27] KVM: arm64/sve: Document KVM API extensions for SVE Dave Martin
2019-04-04 21:09 ` Andrew Jones
2019-04-05 9:36 ` Dave Martin
2019-04-05 10:39 ` Andrew Jones
2019-04-05 13:00 ` Dave Martin
2019-04-05 15:38 ` Andrew Jones
2019-04-10 12:34 ` Dave Martin
2019-03-29 14:56 ` [PATCH v7 00/27] KVM: arm64: SVE guest support Marc Zyngier
2019-03-29 15:06 ` Dave Martin
2019-04-05 16:41 ` Dave Martin
2019-04-25 10:33 ` Alex Bennée
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=1553864452-15080-2-git-send-email-Dave.Martin@arm.com \
--to=dave.martin@arm.com \
--cc=alex.bennee@linaro.org \
--cc=ard.biesheuvel@linaro.org \
--cc=catalin.marinas@arm.com \
--cc=cdall@kernel.org \
--cc=julien.grall@arm.com \
--cc=kvmarm@lists.cs.columbia.edu \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=marc.zyngier@arm.com \
--cc=peter.maydell@linaro.org \
--cc=tokamoto@jp.fujitsu.com \
--cc=will.deacon@arm.com \
--cc=zhang.lei@jp.fujitsu.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;
as well as URLs for NNTP newsgroup(s).