All of lore.kernel.org
 help / color / mirror / Atom feed
From: Marc Zyngier <maz@kernel.org>
To: kvmarm@lists.linux.dev, linux-arm-kernel@lists.infradead.org,
	kvm@vger.kernel.org
Cc: James Morse <james.morse@arm.com>,
	Suzuki K Poulose <suzuki.poulose@arm.com>,
	Oliver Upton <oliver.upton@linux.dev>,
	Zenghui Yu <yuzenghui@huawei.com>,
	Alexander Potapenko <glider@google.com>
Subject: [PATCH 07/12] KVM: arm64: Add ICH_HCR_EL2 to the vcpu state
Date: Tue, 20 Aug 2024 11:03:44 +0100	[thread overview]
Message-ID: <20240820100349.3544850-8-maz@kernel.org> (raw)
In-Reply-To: <20240820100349.3544850-1-maz@kernel.org>

As we are about to describe the trap routing for ICH_HCR_EL2, add
the register to the vcpu state in its VNCR form, as well as reset

Signed-off-by: Marc Zyngier <maz@kernel.org>
---
 arch/arm64/include/asm/kvm_host.h | 2 ++
 arch/arm64/kvm/sys_regs.c         | 2 ++
 2 files changed, 4 insertions(+)

diff --git a/arch/arm64/include/asm/kvm_host.h b/arch/arm64/include/asm/kvm_host.h
index a33f5996ca9f..16cd59362b3d 100644
--- a/arch/arm64/include/asm/kvm_host.h
+++ b/arch/arm64/include/asm/kvm_host.h
@@ -530,6 +530,8 @@ enum vcpu_sysreg {
 	VNCR(CNTP_CVAL_EL0),
 	VNCR(CNTP_CTL_EL0),
 
+	VNCR(ICH_HCR_EL2),
+
 	NR_SYS_REGS	/* Nothing after this line! */
 };
 
diff --git a/arch/arm64/kvm/sys_regs.c b/arch/arm64/kvm/sys_regs.c
index 7d00d7e359e1..c14fea3abc1b 100644
--- a/arch/arm64/kvm/sys_regs.c
+++ b/arch/arm64/kvm/sys_regs.c
@@ -2797,6 +2797,8 @@ static const struct sys_reg_desc sys_reg_descs[] = {
 	EL2_REG(RVBAR_EL2, access_rw, reset_val, 0),
 	{ SYS_DESC(SYS_RMR_EL2), trap_undef },
 
+	EL2_REG_VNCR(ICH_HCR_EL2, reset_val, 0),
+
 	EL2_REG(CONTEXTIDR_EL2, access_rw, reset_val, 0),
 	EL2_REG(TPIDR_EL2, access_rw, reset_val, 0),
 
-- 
2.39.2


  parent reply	other threads:[~2024-08-20 10:06 UTC|newest]

Thread overview: 27+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-08-20 10:03 [PATCH 00/12] KVM: arm64: Handle the lack of GICv3 exposed to a guest Marc Zyngier
2024-08-20 10:03 ` [PATCH 01/12] KVM: arm64: Make ICC_*SGI*_EL1 undef in the absence of a vGICv3 Marc Zyngier
2024-08-20 21:46   ` Oliver Upton
2024-08-21 10:59     ` Marc Zyngier
2024-08-21 16:53       ` Oliver Upton
2024-08-22  8:15   ` (subset) " Oliver Upton
2024-08-20 10:03 ` [PATCH 02/12] KVM: arm64: Move GICv3 trap configuration to kvm_calculate_traps() Marc Zyngier
2024-08-20 10:03 ` [PATCH 03/12] KVM: arm64: Force SRE traps when SRE access is not enabled Marc Zyngier
2024-08-20 23:19   ` Oliver Upton
2024-08-21 11:05     ` Marc Zyngier
2024-08-20 10:03 ` [PATCH 04/12] KVM: arm64: Force GICv3 traps activa when no irqchip is configured on VHE Marc Zyngier
2024-08-20 23:33   ` Oliver Upton
2024-08-21 11:13     ` Marc Zyngier
2024-08-21 16:52       ` Oliver Upton
2024-08-20 10:03 ` [PATCH 05/12] KVM: arm64: Add helper for last ditch idreg adjustments Marc Zyngier
2024-08-20 10:03 ` [PATCH 06/12] KVM: arm64: Zero ID_AA64PFR0_EL1.GIC when no GICv3 is presented to the guest Marc Zyngier
2024-08-20 23:50   ` Oliver Upton
2024-08-21 11:16     ` Marc Zyngier
2024-08-20 10:03 ` Marc Zyngier [this message]
2024-08-20 10:03 ` [PATCH 08/12] KVM: arm64: Add trap routing information for ICH_HCR_EL2 Marc Zyngier
2024-08-21 17:03   ` kernel test robot
2024-08-20 10:03 ` [PATCH 09/12] KVM: arm64: Honor guest requested traps in GICv3 emulation Marc Zyngier
2024-08-20 10:03 ` [PATCH 10/12] KVM: arm64: Make most GICv3 accesses UNDEF if they trap Marc Zyngier
2024-08-20 10:03 ` [PATCH 11/12] KVM: arm64: Unify UNDEF injection helpers Marc Zyngier
2024-08-20 10:03 ` [PATCH 12/12] KVM: arm64: Add selftest checking how the absence of GICv3 is handled Marc Zyngier
2024-08-21  0:10   ` Oliver Upton
2024-08-21 11:17     ` Marc Zyngier

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=20240820100349.3544850-8-maz@kernel.org \
    --to=maz@kernel.org \
    --cc=glider@google.com \
    --cc=james.morse@arm.com \
    --cc=kvm@vger.kernel.org \
    --cc=kvmarm@lists.linux.dev \
    --cc=linux-arm-kernel@lists.infradead.org \
    --cc=oliver.upton@linux.dev \
    --cc=suzuki.poulose@arm.com \
    --cc=yuzenghui@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 an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.