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Sun, 08 Jan 2017 22:25:35 -0800 (PST) From: Jintack Lim To: christoffer.dall@linaro.org, marc.zyngier@arm.com, pbonzini@redhat.com, rkrcmar@redhat.com, linux@armlinux.org.uk, catalin.marinas@arm.com, will.deacon@arm.com, vladimir.murzin@arm.com, suzuki.poulose@arm.com, mark.rutland@arm.com, james.morse@arm.com, lorenzo.pieralisi@arm.com, kevin.brodsky@arm.com, wcohen@redhat.com, shankerd@codeaurora.org, geoff@infradead.org, andre.przywara@arm.com, eric.auger@redhat.com, anna-maria@linutronix.de, shihwei@cs.columbia.edu, linux-arm-kernel@lists.infradead.org, kvmarm@lists.cs.columbia.edu, kvm@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [RFC 04/55] KVM: arm64: Allow userspace to set PSR_MODE_EL2x Date: Mon, 9 Jan 2017 01:24:00 -0500 Message-Id: <1483943091-1364-5-git-send-email-jintack@cs.columbia.edu> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1483943091-1364-1-git-send-email-jintack@cs.columbia.edu> References: <1483943091-1364-1-git-send-email-jintack@cs.columbia.edu> X-No-Spam-Score: Local X-Scanned-By: MIMEDefang 2.78 on 128.59.72.16 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20170108_222602_526724_7B1ABAD4 X-CRM114-Status: GOOD ( 10.23 ) X-Spam-Score: -5.3 (-----) X-Spam-Report: SpamAssassin version 3.4.1 on bombadil.infradead.org summary: Content analysis details: (-5.3 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.7 RCVD_IN_DNSWL_LOW RBL: Sender listed at http://www.dnswl.org/, low trust [128.59.72.51 listed in list.dnswl.org] 0.5 RCVD_IN_SORBS_SPAM RBL: SORBS: sender is a spam source [209.85.216.200 listed in dnsbl.sorbs.net] -3.2 RP_MATCHES_RCVD Envelope sender domain matches handover relay domain -0.0 SPF_PASS SPF: sender matches SPF record -1.9 BAYES_00 BODY: Bayes spam probability is 0 to 1% [score: 0.0000] X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: jintack@cs.columbia.edu MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patch=linaro.org@lists.infradead.org From: Christoffer Dall We were not allowing userspace to set a more privileged mode for the VCPU than EL1, but now that we support nesting with a virtual EL2 mode, do allow this! Signed-off-by: Christoffer Dall Signed-off-by: Jintack Lim --- arch/arm64/kvm/guest.c | 2 ++ 1 file changed, 2 insertions(+) -- 1.9.1 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel diff --git a/arch/arm64/kvm/guest.c b/arch/arm64/kvm/guest.c index 3f9e157..6b9f38a 100644 --- a/arch/arm64/kvm/guest.c +++ b/arch/arm64/kvm/guest.c @@ -117,6 +117,8 @@ static int set_core_reg(struct kvm_vcpu *vcpu, const struct kvm_one_reg *reg) case PSR_MODE_EL0t: case PSR_MODE_EL1t: case PSR_MODE_EL1h: + case PSR_MODE_EL2h: + case PSR_MODE_EL2t: break; default: err = -EINVAL;