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Tue, 15 Jun 2021 06:39:57 -0700 (PDT) Date: Tue, 15 Jun 2021 14:39:39 +0100 In-Reply-To: <20210615133950.693489-1-tabba@google.com> Message-Id: <20210615133950.693489-3-tabba@google.com> Mime-Version: 1.0 References: <20210615133950.693489-1-tabba@google.com> X-Mailer: git-send-email 2.32.0.272.g935e593368-goog Subject: [PATCH v2 02/13] KVM: arm64: MDCR_EL2 is a 64-bit register From: Fuad Tabba To: kvmarm@lists.cs.columbia.edu Cc: kernel-team@android.com, kvm@vger.kernel.org, maz@kernel.org, pbonzini@redhat.com, will@kernel.org, linux-arm-kernel@lists.infradead.org X-BeenThere: kvmarm@lists.cs.columbia.edu X-Mailman-Version: 2.1.14 Precedence: list List-Id: Where KVM/ARM decisions are made List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: kvmarm-bounces@lists.cs.columbia.edu Sender: kvmarm-bounces@lists.cs.columbia.edu Fix the places in KVM that treat MDCR_EL2 as a 32-bit register. More recent features (e.g., FEAT_SPEv1p2) use bits above 31. No functional change intended. Signed-off-by: Fuad Tabba --- arch/arm64/include/asm/kvm_arm.h | 20 ++++++++++---------- arch/arm64/include/asm/kvm_asm.h | 2 +- arch/arm64/include/asm/kvm_host.h | 2 +- arch/arm64/kvm/debug.c | 5 +++-- arch/arm64/kvm/hyp/nvhe/debug-sr.c | 2 +- arch/arm64/kvm/hyp/vhe/debug-sr.c | 2 +- 6 files changed, 17 insertions(+), 16 deletions(-) diff --git a/arch/arm64/include/asm/kvm_arm.h b/arch/arm64/include/asm/kvm_arm.h index 692c9049befa..25d8a61888e4 100644 --- a/arch/arm64/include/asm/kvm_arm.h +++ b/arch/arm64/include/asm/kvm_arm.h @@ -280,18 +280,18 @@ /* Hyp Debug Configuration Register bits */ #define MDCR_EL2_E2TB_MASK (UL(0x3)) #define MDCR_EL2_E2TB_SHIFT (UL(24)) -#define MDCR_EL2_TTRF (1 << 19) -#define MDCR_EL2_TPMS (1 << 14) +#define MDCR_EL2_TTRF (UL(1) << 19) +#define MDCR_EL2_TPMS (UL(1) << 14) #define MDCR_EL2_E2PB_MASK (UL(0x3)) #define MDCR_EL2_E2PB_SHIFT (UL(12)) -#define MDCR_EL2_TDRA (1 << 11) -#define MDCR_EL2_TDOSA (1 << 10) -#define MDCR_EL2_TDA (1 << 9) -#define MDCR_EL2_TDE (1 << 8) -#define MDCR_EL2_HPME (1 << 7) -#define MDCR_EL2_TPM (1 << 6) -#define MDCR_EL2_TPMCR (1 << 5) -#define MDCR_EL2_HPMN_MASK (0x1F) +#define MDCR_EL2_TDRA (UL(1) << 11) +#define MDCR_EL2_TDOSA (UL(1) << 10) +#define MDCR_EL2_TDA (UL(1) << 9) +#define MDCR_EL2_TDE (UL(1) << 8) +#define MDCR_EL2_HPME (UL(1) << 7) +#define MDCR_EL2_TPM (UL(1) << 6) +#define MDCR_EL2_TPMCR (UL(1) << 5) +#define MDCR_EL2_HPMN_MASK (UL(0x1F)) /* For compatibility with fault code shared with 32-bit */ #define FSC_FAULT ESR_ELx_FSC_FAULT diff --git a/arch/arm64/include/asm/kvm_asm.h b/arch/arm64/include/asm/kvm_asm.h index 5e9b33cbac51..d88a5550552c 100644 --- a/arch/arm64/include/asm/kvm_asm.h +++ b/arch/arm64/include/asm/kvm_asm.h @@ -209,7 +209,7 @@ extern u64 __vgic_v3_read_vmcr(void); extern void __vgic_v3_write_vmcr(u32 vmcr); extern void __vgic_v3_init_lrs(void); -extern u32 __kvm_get_mdcr_el2(void); +extern u64 __kvm_get_mdcr_el2(void); #define __KVM_EXTABLE(from, to) \ " .pushsection __kvm_ex_table, \"a\"\n" \ diff --git a/arch/arm64/include/asm/kvm_host.h b/arch/arm64/include/asm/kvm_host.h index 5645af2a1431..45fdd0b7063f 100644 --- a/arch/arm64/include/asm/kvm_host.h +++ b/arch/arm64/include/asm/kvm_host.h @@ -286,7 +286,7 @@ struct kvm_vcpu_arch { /* HYP configuration */ u64 hcr_el2; - u32 mdcr_el2; + u64 mdcr_el2; /* Exception Information */ struct kvm_vcpu_fault_info fault; diff --git a/arch/arm64/kvm/debug.c b/arch/arm64/kvm/debug.c index d5e79d7ee6e9..f7385bfbc9e4 100644 --- a/arch/arm64/kvm/debug.c +++ b/arch/arm64/kvm/debug.c @@ -21,7 +21,7 @@ DBG_MDSCR_KDE | \ DBG_MDSCR_MDE) -static DEFINE_PER_CPU(u32, mdcr_el2); +static DEFINE_PER_CPU(u64, mdcr_el2); /** * save/restore_guest_debug_regs @@ -154,7 +154,8 @@ void kvm_arm_reset_debug_ptr(struct kvm_vcpu *vcpu) void kvm_arm_setup_debug(struct kvm_vcpu *vcpu) { - unsigned long mdscr, orig_mdcr_el2 = vcpu->arch.mdcr_el2; + unsigned long mdscr; + u64 orig_mdcr_el2 = vcpu->arch.mdcr_el2; trace_kvm_arm_setup_debug(vcpu, vcpu->guest_debug); diff --git a/arch/arm64/kvm/hyp/nvhe/debug-sr.c b/arch/arm64/kvm/hyp/nvhe/debug-sr.c index 7d3f25868cae..df361d839902 100644 --- a/arch/arm64/kvm/hyp/nvhe/debug-sr.c +++ b/arch/arm64/kvm/hyp/nvhe/debug-sr.c @@ -109,7 +109,7 @@ void __debug_switch_to_host(struct kvm_vcpu *vcpu) __debug_switch_to_host_common(vcpu); } -u32 __kvm_get_mdcr_el2(void) +u64 __kvm_get_mdcr_el2(void) { return read_sysreg(mdcr_el2); } diff --git a/arch/arm64/kvm/hyp/vhe/debug-sr.c b/arch/arm64/kvm/hyp/vhe/debug-sr.c index f1e2e5a00933..289689b2682d 100644 --- a/arch/arm64/kvm/hyp/vhe/debug-sr.c +++ b/arch/arm64/kvm/hyp/vhe/debug-sr.c @@ -20,7 +20,7 @@ void __debug_switch_to_host(struct kvm_vcpu *vcpu) __debug_switch_to_host_common(vcpu); } -u32 __kvm_get_mdcr_el2(void) +u64 __kvm_get_mdcr_el2(void) { return read_sysreg(mdcr_el2); } -- 2.32.0.272.g935e593368-goog _______________________________________________ kvmarm mailing list kvmarm@lists.cs.columbia.edu https://lists.cs.columbia.edu/mailman/listinfo/kvmarm