From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from out-183.mta0.migadu.com (out-183.mta0.migadu.com [91.218.175.183]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 6A4F43BB44 for ; Mon, 16 Jun 2025 23:04:57 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=91.218.175.183 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1750115099; cv=none; b=Ed4q3BYkmBcwjipd9LYn2DixB2gVP/rBChf5dhTQkV5ObXoEmQgIsD/ST85zn6QuvVfAQ4N+xRHY4s5E5sGVsOnuUrszpG9WwqVQTgdSCSpzg7LI4KCavmjmNyUPOBzDgMmPx8A7wPP4reWDXJ3lsj0c+aDZPZVUe+HSaAv/fjk= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1750115099; c=relaxed/simple; bh=wH0Cf9qY04NmHWZnTJroCkiibXKENn5oxDSqUteZ2aw=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=b3xCR//4o/n7LRHvEXDPEQTnbb4Wt6NJHBxaPxUyG2UwDUQ3Iapli9yLVyny/OGRsIzM3PCDO8v1Q4OcSknKMWmRzaZnFvthwmrtQNsoKCGpEdSZtSraDHC3D+KJY+C4wIY2QCHSCpF7yqzTjWhwC+5hpJnwYelzZ/6Sys0MhgQ= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.dev; spf=pass smtp.mailfrom=linux.dev; dkim=pass (1024-bit key) header.d=linux.dev header.i=@linux.dev header.b=w+76ZfY9; arc=none smtp.client-ip=91.218.175.183 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.dev Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linux.dev Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux.dev header.i=@linux.dev header.b="w+76ZfY9" X-Report-Abuse: Please report any abuse attempt to abuse@migadu.com and include these headers. DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.dev; s=key1; t=1750115095; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=XegHDCoUUdoqY8Yiwa9ONCPhnxctWgiSPUWvist/8k0=; b=w+76ZfY9JBE7fIFaTU2shzi9wsmFFXpbeLsSjyR6JXs1VRPNWAKpSajz7C1fpHNbdijQze oUwApyQmz8eKIE/ysB09ROmM81uaXIJVSukVrI/fL0zgMW10RD4ImUmPd21M0H83FenTwd Ovdqr96xT0eI0NgwfnLsdbzcfAEOg3g= From: Oliver Upton To: kvmarm@lists.linux.dev Cc: Marc Zyngier , Joey Gouly , Suzuki K Poulose , Zenghui Yu , Oliver Upton Subject: [PATCH v2 10/27] KVM: arm64: nv: Describe trap behavior of SCTLR2_EL1 Date: Mon, 16 Jun 2025 16:02:51 -0700 Message-Id: <20250616230308.1192565-11-oliver.upton@linux.dev> In-Reply-To: <20250616230308.1192565-1-oliver.upton@linux.dev> References: <20250616230308.1192565-1-oliver.upton@linux.dev> Precedence: bulk X-Mailing-List: kvmarm@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Migadu-Flow: FLOW_OUT Add the complete trap description for SCTLR2_EL1, including FGT and the inverted HCRX bit. Signed-off-by: Oliver Upton --- arch/arm64/kvm/emulate-nested.c | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/arch/arm64/kvm/emulate-nested.c b/arch/arm64/kvm/emulate-nested.c index c2873f6f980d..86c9a48fc8b6 100644 --- a/arch/arm64/kvm/emulate-nested.c +++ b/arch/arm64/kvm/emulate-nested.c @@ -88,6 +88,7 @@ enum cgt_group_id { CGT_HCRX_EnFPM, CGT_HCRX_TCR2En, + CGT_HCRX_SCTLR2En, CGT_CNTHCTL_EL1TVT, CGT_CNTHCTL_EL1TVCT, @@ -108,6 +109,7 @@ enum cgt_group_id { CGT_HCR_TTLB_TTLBOS, CGT_HCR_TVM_TRVM, CGT_HCR_TVM_TRVM_HCRX_TCR2En, + CGT_HCR_TVM_TRVM_HCRX_SCTLR2En, CGT_HCR_TPU_TICAB, CGT_HCR_TPU_TOCU, CGT_HCR_NV1_nNV2_ENSCXT, @@ -398,6 +400,12 @@ static const struct trap_bits coarse_trap_bits[] = { .mask = HCRX_EL2_TCR2En, .behaviour = BEHAVE_FORWARD_RW, }, + [CGT_HCRX_SCTLR2En] = { + .index = HCRX_EL2, + .value = 0, + .mask = HCRX_EL2_SCTLR2En, + .behaviour = BEHAVE_FORWARD_RW, + }, [CGT_CNTHCTL_EL1TVT] = { .index = CNTHCTL_EL2, .value = CNTHCTL_EL1TVT, @@ -449,6 +457,8 @@ static const enum cgt_group_id *coarse_control_combo[] = { MCB(CGT_HCR_TVM_TRVM, CGT_HCR_TVM, CGT_HCR_TRVM), MCB(CGT_HCR_TVM_TRVM_HCRX_TCR2En, CGT_HCR_TVM, CGT_HCR_TRVM, CGT_HCRX_TCR2En), + MCB(CGT_HCR_TVM_TRVM_HCRX_SCTLR2En, + CGT_HCR_TVM, CGT_HCR_TRVM, CGT_HCRX_SCTLR2En), MCB(CGT_HCR_TPU_TICAB, CGT_HCR_TPU, CGT_HCR_TICAB), MCB(CGT_HCR_TPU_TOCU, CGT_HCR_TPU, CGT_HCR_TOCU), MCB(CGT_HCR_NV1_nNV2_ENSCXT, CGT_HCR_NV1_nNV2, CGT_HCR_ENSCXT), @@ -782,6 +792,7 @@ static const struct encoding_to_trap_config encoding_to_cgt[] __initconst = { SR_TRAP(OP_TLBI_RVALE1OSNXS, CGT_HCR_TTLB_TTLBOS), SR_TRAP(OP_TLBI_RVAALE1OSNXS, CGT_HCR_TTLB_TTLBOS), SR_TRAP(SYS_SCTLR_EL1, CGT_HCR_TVM_TRVM), + SR_TRAP(SYS_SCTLR2_EL1, CGT_HCR_TVM_TRVM_HCRX_SCTLR2En), SR_TRAP(SYS_TTBR0_EL1, CGT_HCR_TVM_TRVM), SR_TRAP(SYS_TTBR1_EL1, CGT_HCR_TVM_TRVM), SR_TRAP(SYS_TCR_EL1, CGT_HCR_TVM_TRVM), @@ -1354,6 +1365,7 @@ static const struct encoding_to_trap_config encoding_to_fgt[] __initconst = { SR_FGT(SYS_SCXTNUM_EL0, HFGRTR, SCXTNUM_EL0, 1), SR_FGT(SYS_SCXTNUM_EL1, HFGRTR, SCXTNUM_EL1, 1), SR_FGT(SYS_SCTLR_EL1, HFGRTR, SCTLR_EL1, 1), + SR_FGT(SYS_SCTLR2_EL1, HFGRTR, SCTLR_EL1, 1), SR_FGT(SYS_REVIDR_EL1, HFGRTR, REVIDR_EL1, 1), SR_FGT(SYS_PAR_EL1, HFGRTR, PAR_EL1, 1), SR_FGT(SYS_MPIDR_EL1, HFGRTR, MPIDR_EL1, 1), -- 2.39.5