From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 8292028E8; Fri, 27 Jan 2023 11:40:23 +0000 (UTC) Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 14FA01692; Fri, 27 Jan 2023 03:41:05 -0800 (PST) Received: from ewhatever.cambridge.arm.com (ewhatever.cambridge.arm.com [10.1.197.1]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id 8C0393F64C; Fri, 27 Jan 2023 03:40:20 -0800 (PST) From: Suzuki K Poulose To: kvm@vger.kernel.org, kvmarm@lists.linux.dev Cc: suzuki.poulose@arm.com, Alexandru Elisei , Andrew Jones , Christoffer Dall , Fuad Tabba , Jean-Philippe Brucker , Joey Gouly , Marc Zyngier , Mark Rutland , Oliver Upton , Paolo Bonzini , Quentin Perret , Steven Price , Thomas Huth , Will Deacon , Zenghui Yu , linux-coco@lists.linux.dev, kvmarm@lists.cs.columbia.edu, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: [RFC kvmtool 12/31] arm64: Create Realm Descriptor Date: Fri, 27 Jan 2023 11:39:13 +0000 Message-Id: <20230127113932.166089-13-suzuki.poulose@arm.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230127113932.166089-1-suzuki.poulose@arm.com> References: <20230127112248.136810-1-suzuki.poulose@arm.com> <20230127113932.166089-1-suzuki.poulose@arm.com> Precedence: bulk X-Mailing-List: linux-coco@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit From: Alexandru Elisei Create the Realm Descriptor using the measurement algorithm set with --measurement-algo. Signed-off-by: Alexandru Elisei Signed-off-by: Suzuki K Poulose --- Makefile | 1 + arm/aarch32/include/asm/realm.h | 10 ++++++++++ arm/aarch64/include/asm/realm.h | 10 ++++++++++ arm/aarch64/realm.c | 14 ++++++++++++++ arm/kvm.c | 3 +++ 5 files changed, 38 insertions(+) create mode 100644 arm/aarch32/include/asm/realm.h create mode 100644 arm/aarch64/include/asm/realm.h create mode 100644 arm/aarch64/realm.c diff --git a/Makefile b/Makefile index ed2414bd..88cdf6d2 100644 --- a/Makefile +++ b/Makefile @@ -192,6 +192,7 @@ ifeq ($(ARCH), arm64) OBJS += arm/aarch64/kvm.o OBJS += arm/aarch64/pvtime.o OBJS += arm/aarch64/pmu.o + OBJS += arm/aarch64/realm.o ARCH_INCLUDE := $(HDRS_ARM_COMMON) ARCH_INCLUDE += -Iarm/aarch64/include diff --git a/arm/aarch32/include/asm/realm.h b/arm/aarch32/include/asm/realm.h new file mode 100644 index 00000000..5aca6cca --- /dev/null +++ b/arm/aarch32/include/asm/realm.h @@ -0,0 +1,10 @@ +/* SPDX-License-Identifier: GPL-2.0 */ + +#ifndef __ASM_REALM_H +#define __ASM_REALM_H + +#include "kvm/kvm.h" + +static inline void kvm_arm_realm_create_realm_descriptor(struct kvm *kvm) {} + +#endif /* ! __ASM_REALM_H */ diff --git a/arm/aarch64/include/asm/realm.h b/arm/aarch64/include/asm/realm.h new file mode 100644 index 00000000..e176f15f --- /dev/null +++ b/arm/aarch64/include/asm/realm.h @@ -0,0 +1,10 @@ +/* SPDX-License-Identifier: GPL-2.0 */ + +#ifndef __ASM_REALM_H +#define __ASM_REALM_H + +#include "kvm/kvm.h" + +void kvm_arm_realm_create_realm_descriptor(struct kvm *kvm); + +#endif /* ! __ASM_REALM_H */ diff --git a/arm/aarch64/realm.c b/arm/aarch64/realm.c new file mode 100644 index 00000000..3a4adb66 --- /dev/null +++ b/arm/aarch64/realm.c @@ -0,0 +1,14 @@ +#include "kvm/kvm.h" + +#include + +void kvm_arm_realm_create_realm_descriptor(struct kvm *kvm) +{ + struct kvm_enable_cap rme_create_rd = { + .cap = KVM_CAP_ARM_RME, + .args[0] = KVM_CAP_ARM_RME_CREATE_RD, + }; + + if (ioctl(kvm->vm_fd, KVM_ENABLE_CAP, &rme_create_rd) < 0) + die_perror("KVM_CAP_RME(KVM_CAP_ARM_RME_CREATE_RD)"); +} diff --git a/arm/kvm.c b/arm/kvm.c index 0e40b753..2510a322 100644 --- a/arm/kvm.c +++ b/arm/kvm.c @@ -127,6 +127,9 @@ void kvm__arch_set_cmdline(char *cmdline, bool video) void kvm__arch_init(struct kvm *kvm) { + if (kvm->cfg.arch.is_realm) + kvm_arm_realm_create_realm_descriptor(kvm); + /* Create the virtual GIC. */ if (gic__create(kvm, kvm->cfg.arch.irqchip)) die("Failed to create virtual GIC"); -- 2.34.1